Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Letter from Dunlop Pneumatic Tyre Co. Ltd. discussing tyre balance guarantees and valve fitting specifications. | ||
| View original record | BY APPOINTMENT [Royal Coat of Arms - DIEU ET MON DROIT, HONI SOIT QUI MAL Y PENSE] STAMP: "P" DEC TO H.M. THE KING. STAMP: RECEIVED [clock face] HANDWRITTEN: T.C. 93 The Dunlop Pneumatic Tyre Co. Ltd.… | ||
| Scan002 | The second page of a letter from The Dunlop Pneumatic Tyre Co Ltd to Wm. Cowen Esq. | ||
| View original record | 2. Wm. Cowen Esq. 2/12/11. of your requirements for the season. Yours faithfully, FOR THE DUNLOP PNEUMATIC TYRE CO LD C.G.Thistleton RECEIVED P DEC 1911 | ||
| Scan003 | Departmental memo forwarding a letter from the Dunlop Tyre Co. for comment. | ||
| View original record | ROLLS-ROYCE LIMITED, 14-15, CONDUIT STREET, LONDON, W. TELEGRAMS: "ROLHEAD," LONDON. TELEPHONES: 1654, 1655, 1656 GERRARD. C7/B41211 DEPARTMENTAL MEMO. TC.93 This column is for Name of Person… | ||
| Scan004 | Meeting notes concerning steering wobbles and a scheduled discussion with the Michelin Tyre Co. about tyre balance. | ||
| View original record | 92nd Meeting Dec. 4. 11. Re Steering Wobbles. Mr Nadin informed the Committee that he had no further communication from "S" excepting as regards the Michelin Tyre Co. Representative from this Co.… | ||
| Scan005 | Committee response to suggestions for improving lubrication access for the steering rod and gearbox filler. | ||
| View original record | X457 Ref. 92. (11) Mr A.V.Hanbury 4/12/11 "S" X670 re Mr Hennings suggestions attached. JBB4/41211 With reference to Mr Hennings note dated November 21st, this matter has been brought before the… | ||
| Scan006 | Committee response regarding a suggestion to use an overflow cock instead of a dipstick for indicating gearbox oil level. | ||
| View original record | B.E. 235a (100H) (W 955. 14.10.13) G. 2053 (2) the Committee point out that the level of oil is now indicated by an over flow cock, situated in the side of the gear box at the correct level. They… | ||
| Scan007 | Committee meeting minute discussing a suggestion by Mr. Henning for lubricating the steering rod. | ||
| View original record | 2nd Meeting Dec. 4. 11. Re Mr Henning's suggestion concerning lubrication of steering rod. "Also the grease cap on back end of longitudinal steering rod is very difficult to get at with a vallance on… | ||
| Scan008 | Meeting minutes discussing steering lubrication methods and a locking scheme for a specific car. | ||
| View original record | 9 X670 Steering (Contd) (7) oil being carried in this rod. It was suggested that an oil pipe might be carried from the rear end, to be lubricated to the forward end, and attached by clips to the rod.… | ||
| Scan009 | Departmental memo discussing tyre balance issues and applying pressure on manufacturers. | ||
| View original record | S.S. 475 (50 H) (W 930. 7.10.11). E.P. 198. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). Ref. 93 (x) DEPARTMENTAL MEMO. This column is for… | ||
| Scan010 | Inadvisable strategy of threatening a supplier by considering buying tyres from other manufacturers. | ||
| View original record | R.P. 473 (50 H) (W 930. 7.10.11). E.P 198. 2. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of… | ||
| Scan011 | Letter discussing the superiority of British Oak over Hickory for wheel spokes. | ||
| View original record | TELEGRAPHIC ADDRESS: "SOUND, COVENTRY." REGISTERED OFFICES: 14, REGENT STREET, LONDON, S.W. TELEPHONE No. 273, COVENTRY. DUNLOP RIM AND WHEEL Co., LTD. WHEEL AND RIM MAKERS. ALMA STREET. COVENTRY.… | ||
| Scan012 | Letter from Dunlop explaining the use of British Oak over American Hickory for wheel spokes. | ||
| View original record | DUNLOP RIM & WHEEL Co., LTD. CONTINUATION SHEET NO. "2" did not continue to use them for the reasons stated above. Although the writer has manufactured many thousands of wheels in no case has he seen… | ||
| Scan013 | Meeting minutes regarding a suggestion for the lubrication of the steering rod joint. | ||
| View original record | 107th. Meeting Jan 3rd. 12. X957 Re Suggestion from Mr Henning concerning the lubrication of steering rod joint. It had previously been agreed that Mr Spinney should design some scheme of lubrication… | ||
| Scan014 | Meeting minutes discussing the issue of steering wobbles and the need for further tyre balance testing. | ||
| View original record | Ref: N.B (S.T.B IV.XX) (441) - S.R 107th Meeting Jan 3rd.12. Re Steering Wobbles. Mr Barrington informed the Committee that Mr Johnson had written to him asking whether we were not getting too… | ||
| Scan015 | Steering wobble and tyre balance tests. | ||
| View original record | R.R. 475 (50 H) (X 448. 16.12.11). E.P. 798. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). Ref. 107 (33-4) DEPARTMENTAL MEMO. This column is… | ||
| Scan016 | Departmental memo discussing the issue of steering wobbles caused by unbalanced tyres and the unsatisfactory method of fixing balance weights. | ||
| View original record | K.R. 471 (59/H) (X 737. 18.3.12) E.P. 1493. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| Scan017 | Departmental memo discussing potential solutions for issues caused by unbalanced tyres. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person addressed. DATE. follows:- 1. Whether it can… | ||
| Scan018 | Fixing security bolts to prevent steering wobbles caused by unbalanced front wheels. | ||
| View original record | R.P. (50H) (X 737. 18.3.12) E.P. 1493. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| Scan019 | Confirming a conversation about using temporary balance weights under tyre bolts to fix steering wobble. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person addressed. Mr Barrington. DATE. 24.6.12… | ||
| Scan020 | Article from 'The Autocar' magazine about diagnosing and curing steering wheel flapping. | ||
| View original record | R.R. 285A (150 H). THE AUTOCAR, September 7th, 1912. 417 X 457 Useful Hints and Tips. The Flapping of Steering Wheels and a Cure. A CAR which had steered normally gradually began to show undue… | ||
| Scan021 | Extract from 'The Autocar' magazine discussing the cause and cure for flapping steering wheels. | ||
| View original record | X454 Extract from "The Autocar" of November 9th 1912. The Flapping of Steering Wheels. An article under the above heading appeared in the issue of"The Autocar" dated September 7th which interested me,… | ||
| Scan022 | Curing steering 'flapping' by adjusting axle inclination, noting that the best solution requires experimentation. | ||
| View original record | -2- many manufacturers would do well to experiemnt with, as the re are no doubt many defects in the steering on cars turned out to-day, even on the higher priced ones. - Myron.E. Vance. (We are very… | ||
| Scan023 | Letter from F.H. Royce discussing steering wobble, referred to as 'flapping', and proposed improvements. | ||
| View original record | FHR9/H41212 [Stamp: W.M. RECEIVED 9 DEC 1912] [Handwritten: by Wormald] GRAND HOTEL DU CANADEL, Par le Lavandou, (VAR) 4th Dec. 1912. Mr Johnson from F.H.R. for T.C. Re Steering. I enclose herewith a… | ||
| Scan024 | Issues with out-of-balance wheels and tyres and the advantages of adopting Dunlop wire wheels. | ||
| View original record | COPY. R7/B19313. From F.H.R., Copies sent to: Mr Johnson. Mr Wormald. Mr Spinney. Mr Nadin. Out of balance wheels and tyres. x45Y It looks as though the difficulty of out of balance wheels and tyres… | ||
| Scan025 | Departmental memo discussing the investigation into steering wobble issues. | ||
| View original record | R.R. 656 (20 H) (PP 780. 27.3.13) E.P. 3882. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). DEPARTMENTAL MEMO. This column is for Name of… | ||
| Scan026 | Investigation into steering wobbles, proposing tests and potential causes. | ||
| View original record | COPY. C.J. and Mr Spinney from F.H.R. Copies sent to: Mr Wormald (for Ex. Dept.) Mr Haldenby to confirm result and try further. Re Steering Wobbles. As steering wobbles only take place by report at… | ||
| Scan027 | From Mr. Johnson requesting tests to investigate steering wobble in badly balanced cars. | ||
| View original record | Wor/SM14/L20513 Re Steering Wobbles. - X.457 Hy 20/5/13 Mr Johnson remarks re the above :- "I am anxious to settle this matter. The first thing to do is to ascertain how other cars behave if they are… | ||
| Scan028 | Report discussing explosions in the silencer and an investigation into steering wobbles, with comparative data from a Daimler. | ||
| View original record | Wor/Hy28/L26513 (contd) 2. making an examination of this. When this has been done and we have found how to make the way through bigger it will be re-erected and tested at high speeds on the… | ||
| Scan029 | Testing wheel oscillation and wobble by fitting bumps to tyres, with notes on a Delaunay-Belleville car. | ||
| View original record | Wor/Hy23/L26513 (contd) 3. itself. The whole front of the car oscillates from side to side in a most alarming manner when wheels are 2 lbs out of balance. I fitted some bumps ¼" high to the front… | ||
| Scan030 | Comparative analysis of vehicle wobble, steering, and wheel specifications for Napier and R.R. No.2100E models. | ||
| View original record | Wor/Hy23/L26513 (contd) 4. bad one. This car is distinctly better than the Daimler or R.R. as regards wobbles. Napier. Dia. of steering wheel 17" Steering reversible both ways. Wodden wheels 880 X 120… | ||
| Scan031 | Customer complaint of steering wobbles and subsequent modifications to car no. 2064. | ||
| View original record | COPY C O P Y. REPORT ON Mr.HUGH CAMPBELL'S CAR No. 2064. COMPLAINT OF STEERING WOBBLES. Customer complained of steering wobbles on his car, which was fitted with Rudge-Whitworth detachable wood… | ||
| Scan032 | Postscript to a report identifying unbalanced wheels as the cause of steering wobble. | ||
| View original record | COPY -2- ing wobble. Signed- J.Maddocks. P.S. The steering wobble was entirely due to unbalanced wheels and was effectually cured by fitting our wheels. [Faint watermark text] HYDE CLOCKFEA 1904… | ||
| Scan033 | Trial of a plain thrust bearing in the steering column to address steering wobble. | ||
| View original record | C O P Y. R10/B2.6.13. Mr Spinney from F.H.R., Copies to Mr Johnson, Mr Wormald (for Mr Haldenby). Steering Wobbles. Re Plain Thrust Bearing in the Steering column. We are now awaiting the result of a… | ||
| Scan034 | Experiments and potential solutions for steering wobble issues. | ||
| View original record | COPY. Mr Wormald from F.H.R., Copies sent to: Mr Johnson. Mr Haldenby. Re Steering Wobbles. - X.457 Mr Haldenby's report is exceedingly interesting and the experiments seem to have been quite well… | ||
| Scan035 | Chasing progress on an instruction from Mr Royce regarding a test for steering wobbles. | ||
| View original record | Wor/SM1/L9613. Re Steering Wobbles. - X.457 Mr Brown. 9-6-13. Mr Matthews (copy) Mr Royce is urging a test of the plain thrust bearing for steering mechanism. This was instructed by Mr Spinney on his… | ||
| Scan036 | Note regarding a delay in receiving thrust bearings for steering wobble issues and preparing to test reversibility. | ||
| View original record | Steering Wobbles. -X.457 File Wor/ Hy 10/L106/13 We have not yet received the plain thrust bearing. There has been some delay between the Order Office and the works but all is now in order and we… | ||
| Scan037 | Extract from a report detailing tests for steering wobble on a Lanchester car and comparing its performance to other marques. | ||
| View original record | X.457) Steering Wobbles. Extract from Wor/Hy 5/L 24/13. HL We have now fitted up the plain thrust bearings to the column of a car and will have some running in a day or so. X457 The Lanchester car has… | ||
| Scan038 | Steering wobbles and a subsequent flywheel failure during car trials. | ||
| View original record | [Typed Text] ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Re Steering Wobbles. - X.457 [Addressed to: Hy (Mr. HALDENBY)] 18-7-13. You stated… | ||
| Scan039 | Causes and cures for steering wobble, referencing out-of-balance wheels and tyres. | ||
| View original record | Mr Cox Show this to Mr. P.R. & all Sales officials. Ask works to let me know when they can inform me result of test - J. 18/7 O P Y. A 18/7 COPY. X457 R3/P 15.8.13. Mr. Day. J. Cx. LHS% With reference… | ||
| Scan040 | Steering mechanism tests involving stub axles and plain thrust bearings. | ||
| View original record | C O P Y. COPY. R3/P 15.8.13. Mr. Day. Sheet 2. J. Secondly, the fact that we can push these wheels Cx. further on the stub axle will reduce the effect on the LHS. steering wheel. Thirdly, we are… | ||
| Scan041 | Steering wobbles and tests on plain thrust bearings versus ball thrust bearings. | ||
| View original record | From Exp. Dept. Copies for:- Mr.Johnson. Mr.Royce. Mr.Radin. Mr.Day. Report on Steering Wobbles. X. 457. I have tried the steering gear fitted with plain thrust bearings instead of ball thrust in the… | ||
| Scan042 | Comparison of steering effort in pounds for various car makes and bearing types. | ||
| View original record | contd. -2- Por/13/C15813. pivot pin to the point where the load was applied was 20". Make of Car. Pull in lbs. at a radius of 20" from the pivot pin to move the steering. R.R. Ball thrust steering. 6.… | ||
| Scan043 | Extracting Mr. Royce's suggestions for resolving steering wobble issues, including tests and design changes. | ||
| View original record | F.S. (XX. 140. 18.7.13) E.P. 4635. Wor/SM22/L27813. Re Steering Wobbles. X.457 Hy 27-8-13. Mr Day. The following is an extract from Na.c Mr Royce's memo R3/P21813 :- "I would be glad if Mr Day will… | ||
| Scan044 | Continued report on various vehicle component tests including throttles, cross members, steering, magneto, and pedal covers. | ||
| View original record | Wor/My4/L2913. (contd) 2. easier. I wish to use the throttles longer before issuing a final report. We have had no dust since they have been fitted. Revolving test of Front Cross Members. X.213 We… | ||
| Scan045 | Typed copy of a letter discussing issues and causes of steering wobble in early automobiles. | ||
| View original record | COPY R1/P 2.9.13. Re T. Desnos. 1690. COM/L6/W27813 To D. from R. Copy for J. " " Wor. " " Hy. With reference to steering wobbles, I have never recommended sending out balance weights to be put on the… | ||
| Scan046 | Steering improvements, testing for reversibility, and the adoption of wire wheels for Series 2800. | ||
| View original record | COPY. COPY. sheet 2. R1/P 2.9.13. which Mr. Johnson greatly admired, there is no attempt at irreversibility, as no worm is introd- -uced. Our steering, however, is in hand for improvements, such as we… | ||
| Scan047 | Technical note discussing steering tests, plain thrust bearings, and the adoption of wire wheels. | ||
| View original record | [Handwritten] R3/P.2.9.13. [Handwritten] Sheet 2. beauty of our easy steering, its self-righting property, and its excellent wearing features. We are awaiting from Mr. Haldenby test of the degree of… | ||
| Scan048 | Comparing the importance of fouling springs versus steering gear troubles for chassis 1619. | ||
| View original record | [Handwritten in purple ink] A.T. X457 Nov (circled) I do not want to state that the fouling springs an unimportant matter, but have become much more important than the steering gear troubles. The… | ||
| Scan049 | Experiments requested by Mr Royce regarding steering wobbles. | ||
| View original record | Experiments from Mr Royce per Mr Hives re Steering Wobbles. X457 Find the effect of the lean of the pivots. Also try the weight bolted on the steering wheel without springs in the side steering and… | ||
| Scan050 | Urgent memo regarding experiments on steering wobbles to minimise the number of chassis produced with the defect. | ||
| View original record | R.R. 238a (150 u) (XX. 279. 21.8.13) E.P. 4814. Wor/SM7/L9913. Re Steering Wobbles. X.457 Hy. 9-9-13. Please note Mr Johnson has written asking us to push on all experiments as quickly as possible… | ||
| Scan051 | Daily report on frame tests and steering wobble investigations. | ||
| View original record | Mr Johnson. Mr Royce. DAILY REPORT. Frame Tests. - The see-saw test has now been worked for one week, nothing has happened and by the look of it nothing will. The front horns do twist but most of it… | ||
| Scan052 | Instructions on correcting steering wobbles by adjusting the steering pivot inclination using tapering packing. | ||
| View original record | C O P Y. R1/P 10.9.13. X457 To Mr Day from R. Copy for Wor. " " Mr Wallace " " Hm. " " J. With reference to steering wobbles. In the side elevation of the car the steering pivots must be vertical or… | ||
| Scan053 | Chronological report on the investigation into steering wobbles, including competitor analysis and design changes. | ||
| View original record | Wor/SM2/L12913. September 12th.1913 Steering Wobbles. X.457 26/5/13 Hy issued report on Daimler, Delaunay-Belleville, Napier, and R.R. chassis 2100E. 2/7/13 Hy reported on Lanchester. 15/8/13 Hy… | ||
| Scan054 | Instruction memo regarding steering wobbles and a request for aluminium packing for the front axle. | ||
| View original record | R.R. 235a (150 n) (XX. 279. 21.8.13) E.P. 4314. Wor/SM10/L13913. Re Steering Wobbles. X.457 Da. 13-9-13. Na,cc Please issue instructions for two sets of aluminium packing for front axle so as to give… | ||
| Scan055 | Test report on the reversibility of various makes of steering systems to investigate steering wobbles. | ||
| View original record | From Exp. Dep. Copies for: J. R. Da. Na. Wor/Hy19/L16913. September 16th.1913 Re Steering Wobbles. X.457 I have repeated the tests to obtain the degree of reversibility of various makes of steering… | ||
| Scan056 | Test results for an 'old Daimler' steering system, noting unreliability and recording steering effort measurements. | ||
| View original record | Wor/Hy19/L16913. (contd) The old Daimler was tried but it locked itself if a big load was applied at the pivot. The load was decreased at the steering wheel until it could be lifted. The results were… | ||
| Scan057 | Causes and potential cures for steering wobbles. | ||
| View original record | C O P Y. R1/P.17.9.13. X45-7 To J. from R. With reference to the steering wobbles, I have received your note, which states that the works say, that it only partially cures them. I did not expect that… | ||
| Scan058 | Typed memo discussing steering gear improvements and comparisons with competitor vehicles. | ||
| View original record | R1/.P.17.9.13. Sheet 2. extent. This is indicated to Mr Day on my note. We are investigating the further possibilities of improving the steering gear. F.H.Royce. Platford, Hives, and Haldenby all made… | ||
| Scan059 | Investigation into steering wobbles, potential causes like tyre pressure and pivot inclination, and proposed solutions. | ||
| View original record | C O P Y. COPY. R11. P. 17.9.13. Re Frame Tests. X. 1/3 +457 To J. from R. Copy to Mr. Wormald. With reference to steering wobbles, I understand Mr.Hives is making a thorough investigation of these,… | ||
| Scan060 | Technical discussion on steering system design, including worm and nut pitch, pivot intersection, and overhang. | ||
| View original record | COPY. X457 R4/P 18.9.13. To Mr.Day from R. Copy for J. " " Wor. With reference to the steering of our cars, I think we might try a worm and nut having a 1" pitch instead of 1⅛", that is about 11%… | ||
| Scan061 | Merits of the company's steering system, specifically regarding back-lash. | ||
| View original record | C O P Y. COPY. Sheet 2. R4/P 18.9.13. or the slight back-lash which almost invariably exists, preventing the exact course being set by the hand wheel; our own steering being particularly good in this… | ||
| Scan062 | Causes of steering wobbles and comparing steering gear designs with competitors. | ||
| View original record | COPY. 226a (150 n) (XX. 279. 21.8.13) E.P. 4814. Handwritten: To F. from R. Copy for Mr. Day Wor. Hy. 24913 Typed: R4/P.19.9.13. Re. Steering wobbles. X 457. From Mr Haldenby's experiments, we find… | ||
| Scan063 | Acquisition of a Metallurgique car for steering system comparison and testing. | ||
| View original record | R.R 28a (150 u) (XX. 279. 21.8.13) E.P. 4814. sheet 2. COPY. R4/P.19.9.13. It might also be advantageous to get hold of a good sized Metallurgique, as this appears to have the steering pivots on the… | ||
| Scan064 | Reply concerning experiments on steering wobbles based on Mr Royce's theory and proposed further tests. | ||
| View original record | Wor/SM2/L19913. Re Steering Wobbles. X.457 J. 19-9-13. In reply to your query asking whether our experiments bear out Mr Royce's theory, Mr Haldenby tells us that when we decreased the rake of the… | ||
| Scan065 | Departmental memo concerning a steering wobble issue on car No. 1645 owned by Col. Bingham. | ||
| View original record | R.R 475 (100 H) (PP 835 8.4.13) E.P. 3962. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). DEPARTMENTAL MEMO. WOR/CP7/019913. This column is for… | ||
| Scan066 | Departmental memo discussing the ergonomics of altering the steering column position for chassis 2345. | ||
| View original record | R.R. 646 (100 H) (PP. 883. 17-4-13) E.P 3986. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). DEPARTMENTAL MEMO. X457 Names and Indicating… | ||
| Scan067 | 'steering wobbles' on a customer's car and a proposal to test a cure on another vehicle. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Re Steering Wobbles. Mr. Jones' Car No. 1185. x417 Na. WOR9/T19913. Sept. 19th. 1913. We have… | ||
| Scan068 | The steering position for chassis 2345. | ||
| View original record | Wor/Hyl/C20913. September 20th.1913. Report on Steering Position.Chassis 2345. I do not think that any advantage would be gained by moving the steering column bodily upward and keeping the angle the… | ||
| Scan069 | Instruction sheet regarding steering wobble on chassis 1645 in the repair shop. | ||
| View original record | W.M. RECEIVED SEP 20 1913 H.R. 300 (6 M) (X 847. 29.5.13) E.P. 4342. ROLLS-ROYCE LIMITED. 12800 INSTRUCTIONS. To: Mr Wormald Date: 20/9/1913 Order No. Customer's No. X457 Re: RE CHASSIS 1645 in Repair… | ||
| Scan070 | Instructions for Mr. Haldenby concerning a steering wobble on chassis 1645 and how to correct pivot alignment. | ||
| View original record | R.R. 300 (6 11) (X.K. 847. 29.5.13) E.P. 4342. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Haldenby Re: Chassis 1645 - Repair Shop and Steering Wobble If this Car has not lost its wobble on reassembly… | ||
| Scan071 | Instructions to the Repair Department about steering wobbles. | ||
| View original record | R.R. 235a (150 m) (XX. 279. 21.8.13) E.P. 4814. COPY. RI/P20.9.13. To J. from R. X457 Re. steering wobbles. With reference to Repair Dept., I think it would be wise if we at once issued instructions… | ||
| Scan072 | Pivot pin rust, steering wobble tests, and frame tests with new components. | ||
| View original record | Wer/Hy21/L22913. Sheet 4. the pivot pin being short of lubricant and sometimes rusty. It is not a common fault but does occur sometimes. Does Mr Royce think it worth while trying a bronze bush at this… | ||
| Scan073 | Report on steering wobbles for Car No. 1185, instructing action based on Mr. Royce's theories. | ||
| View original record | R.R. 657. (100H) (XX. 206. 30.7.13) E.P. 4996. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Names and Indicating letter. Initial of person… | ||
| Scan074 | Proposed solution for steering wobbles alongside a contradictory test report. | ||
| View original record | Wor/SMG/L23913. Re Steering Wobbles. X.457 J. 23-9-13. With reference to Mr Royce's suggestion that a standing order be issued to the Repair Dept. concerning altering the angle of the pivot on all… | ||
| Scan075 | Page two of a typed letter regarding experiments and arranging an interview with Mr Haldenby. | ||
| View original record | -2- of the standing order until our experiments clearly point that this is a real remedy. We shall be pleased to know your further wishes. Perhaps if you were to arrange an interview with Mr Haldenby… | ||
| Scan076 | Proposed remedy for 'Steering Wobbles' and a disagreement from the Experimental shop. | ||
| View original record | Wor/SM6/L24913. Sept. 24th.1913. Steering Wobbles. Mr Johnson has instructed that a Standing Order be issued to all our Repair Depts. to correct if necessary the rake of the front axle, but the Exp.… | ||
| Scan077 | Internal instruction memo regarding an investigation into steering wobbles. | ||
| View original record | INSTRUCTIONS. To: Mr Wormald Order No.: Customer's No.: X457 Re: STEERING WOBBLES Mr Royce has asked me to investigate the above question and if possible get it settled finally. Accordingly he would… | ||
| Scan078 | From C. Johnson discussing Mr. Royce's analysis of steering wobbles and their cures. | ||
| View original record | R.R. 647 (100 H.) (L.L. 194-15-7-13.) B. & H. 519. ROLLS-ROYCE LIMITED, 14 & 15, CONDUIT STREET, LONDON, W. TELEPHONES: 1654, 1655, 1656 (Gerrard) TELEGRAMS: 'ROLHEAD,' REG., LONDON. [Distribution… | ||
| Scan079 | Mr. Royce's instructions to investigate and resolve steering wobbles. | ||
| View original record | Wor/SM7/L26913. Re Steering Wobbles. X.457 Hy. 26-9-13. The following is a copy of Mr Day's instruction sheet of 25/9/13 :- "Mr Royce has asked me to investigate the above question and if possible get… | ||
| Scan080 | Tests conducted to understand and cure steering wobbles caused by front axle tilt and wheel imbalance. | ||
| View original record | From Exp. Dept. Copies for: H. J. Ma. Da. Wor/Hyl/C27013. Report on Steering Wobbles. X. 457. I have made a test on a car with the front axle tilted 2" in 8" so as to get very extreme effect of the… | ||
| Scan081 | Cover note attaching Mr Haldenby's report on steering wobbles. | ||
| View original record | Wor/EM16/L27913 Re Steering Wobbles. X. 457 R. 27-9-13. J. We attach herewith Mr Haldenby's Da. report on above Wor/Hy1/C27913. Na. p. Wor. | ||
| Scan082 | The urgent preparation of packing pieces to correct steering wobble issues on various car types. | ||
| View original record | Wor/SM10/L29913. Re Steering Wobbles. X.457 ha. for Da. 29-9-13. We attach herewith a copy of R1/P20913. Mr Johnson has instructed us to issue a standing order to our Repair Depart- ments in various… | ||
| Scan083 | The results of experiments on steering wobbles, identifying two distinct types. | ||
| View original record | "F" Dept. Drawing Office BID1/GB29913. 29th Sept. 1913. Mr Johnson for Mr Royce. Re Steering Wobbles. X451 I have had a series of experiments carried out on this subject and have come to definite… | ||
| Scan084 | Causes and cures for wheel wobbles at different speeds. | ||
| View original record | No.2. is released they die out. They can be stopped by increasing speed. They apparently cannot be produced at a greater speed then 20 m.p.h. which I suggest is due to the gyroscopic action of the… | ||
| Scan085 | Record of experiments on car no. 2100 to investigate wheel wobble under various conditions. | ||
| View original record | No. 3. The following is a record of the experiments:- Car No. 2100. Condition | Result --- | --- (1) 2¾ springs, good condition shackles and pins. wheels balanced. Pivots inclined 1/64 | NO WOBBLES of… | ||
| Scan086 | Typed report page detailing experiments on vehicle wobbles and steering instability. | ||
| View original record | No.4. Condition Result (7) Do. Do. but wheels 1 lb. out-of-balance. Faint tugging, as before. (B wobbles). NO "A" WOBBLES ON ANY OF THE ABOVE. (8) 24 springs as in (1) but pivots set back 1/20. Wheels… | ||
| Scan087 | Departmental memo inquiring if there is sufficient information to issue repair instructions for steering wobbles. | ||
| View original record | AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS TELEGRAMS: ROLLSROYCE-PARIS SHOWROOM, 102, Avenue des Champs-Elysées Téléphone 587-04 OFFICES: GARAGE: STORES and… | ||
| Scan088 | Steering wobbles and planned improvements, differentiating between 'A' and 'B' types. | ||
| View original record | C O P Y. R9/P 13.10.13. X 454 To Da. from R. Copy to J. " " Ne. " " Wor. I thank you for your notes on steering wobbles. I am very pleased we have now come to some more definite understanding about… | ||
| Scan089 | Instructions and correspondence regarding an experiment on a plain thrust bearing in a steering column. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Wor/SM3/L111013. Names and Indicating letter. Initial of person addressed. Re Plain Thrust… | ||
| Scan090 | Letter concerning the urgent dispatch of chassis 2486 for Mr. Unzue, which was exchanged due to a steering column wobble on the previous chassis. | ||
| View original record | X457 Copy. Automobiles Rolls-Royce (France) Limited, 83, Boulevard Gouvion Saint-Cyr, Paris. 2486 . Mr. Unzue. D. E1G/D 18.10.13. You will remember that this chassis was exchanged for chassis 2040 on… | ||
| Scan091 | Steering wobbles by comparing the front axle pivot inclinations of different cars. | ||
| View original record | From Exp. Dept. To J. R. Re Steering Wobbles X,457 I have measured the inclination of the front axle pivots of the following cars :- Napier. - Vertical in side elevation. Old Daimler. - Inclined… | ||
| Scan092 | Experimental Department 'B' weekly report on frame tests and steering wobbles. | ||
| View original record | Mr Johnson. Mr Royce. Wor/Aly5/L221013. October 22nd. 1913. EXPERIMENTAL DEPT. "B" Weekly Report. Reports have been made on :- Frame Tests by bumping (daily). Revolving test on front horn of Frame.… | ||
| Scan093 | Vehicle wobble, chassis testing, and issues with lubrication and carburettor setup. | ||
| View original record | Wor/Hy5/L221013. Sheet 2. on a car which has a tendency to wobble when dropped into a pot hole. I refer only to the low speed wobble and not to the out of balance wheel wobble. Chassis 2004 Marine… | ||
| Scan094 | Questioning the instruction to fit an untested steering column on chassis 2486 due to lack of standardisation. | ||
| View original record | Wor/SMS/C231013. Steering Wobbles. X.457. Da. 23-10-13. Na.c Instructions have been issued to fit a Steering Column with plain thrust bearings on chassis 2486. In view of the fact that this Steering… | ||
| Scan095 | Internal instruction memo regarding Chassis 2486, concerning the plain steering thrust and slow pitch worm. | ||
| View original record | R.R. 300 (6 m) (XX. 368. 9-9-13) E.P. 4920. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 14886 22/10/ 13 .19 To: Mr Edmunds Order No.: Customer's No.: Re: CHASSIS 2486 with PLAIN STEERING THRUST X457 AND SLOW… | ||
| Scan096 | Departmental memo concerning the fitting of steering components to a specific chassis, with clarifying handwritten notes. | ||
| View original record | R.R. 475 (100 H) (PP 835. 8.4.13) E.P. 3962. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Wor/SM2/C241013. DEPARTMENTAL MEMO. This column is… | ||
| Scan097 | Modifications to the steering column for chassis 2100E. | ||
| View original record | x457 Fitted to Chassis 2100E extract from A&M 4058/14113 in x225. Steering column with Flat Face. Thrust Washers to Arrang. Drwgs F3939. | ||
| Scan098 | Experimental department weekly report on car, brake, frame, and steering tests. | ||
| View original record | J. R. Wor/Hyl/L31213. December 2nd.1913. EXPERIMENTAL DEPT. "B" Weekly Report. Reports on the following have been sent in :- X.793. - 60 HP Peerless Car. X.2 - Double Rear Brakes. X.711. - Bumping… | ||
| Scan099 | Steering and suspension component trials, including a shock absorber, steering worm, and pivot test. | ||
| View original record | Wor/Hyl/L21213. Sheet. 2 shock absorber on to the front axle and coupling it up to the cross steering tube. The resistance was about 10 lbs. This has a most steadying effect on the steering as regards… | ||
| Scan100 | Letter regarding work carried out to cure steering wobbles on chassis 1369. | ||
| View original record | COPY. Hm3/DW301213. Re Nevinson - chassis 1369. N.W. Wor. 30.12.13. We have recently had the above car in to cure steering wobbles, and we have very carefully carried out the instructions re lean of… | ||
| Scan101 | Internal correspondence and a handwritten reply regarding a persistent steering wobble on chassis 1369. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Re Nevinson - chassis 1369. I send you herewith a copy of Mr. Hallam's report re steering… | ||
| Scan102 | Article from 'THE AUTOCAR' by John V. Pugh discussing experiments on steering wheel wobble caused by unbalanced wheels. | ||
| View original record | 12 THE AUTOCAR, January 3rd, 1914. Steering Wheel Wobble. Some Experiments with Unbalanced Wheels. By John V. Pugh. ON Brooklands racing drivers appreciate fully the vital importance of having their… | ||
| Scan103 | Article from 'THE AUTOCAR' magazine discussing the phenomenon of steering wheel wobble and related experiments. | ||
| View original record | THE AUTOCAR, January 3rd, 1914. Steering Wheel Wobble. it off the ground, and its up and down movement whilst driving on the road is quite noticeable when the mudguard is removed. One effect of the… | ||
| Scan104 | Plain thrust bearing for the steering gear, ultimately recommending against its use. | ||
| View original record | From Exp. Dept. Copies for: J. R. Ba. Na. Wor/Hy12/L12114. January 12th. 1914. Report on Steering Gear with plain thrust bearing in column. X.457. This thrust bearing is the second one and is of… | ||
| Scan105 | Correspondence on Chassis No. 1369. | ||
| View original record | R.R. 657. (100H) (VV. 240. 17.12.13) E.P. 3598. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Names and Indicating letter. Initial of person… | ||
| Scan106 | Instruction memo discussing low-speed steering wobble caused by pivot inclination. | ||
| View original record | R.R. 238 (21n) (XX. 356. 8.9.13) E.P. 4910. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Wormald Date: January 14th 1914. Order No. Customer's No. Inclination of Pivots. I am interested to note the memos… | ||
| Scan107 | Instructions to fix a vehicle wobble by addressing excessive side play in the spring shackles and dumb irons. | ||
| View original record | R.R. 238 (24 n) (XK. 356. 8.9.13) E.P. 4910. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. 2 Customer's No. Standard inclination recommended by the Experimental Dept. After this had been done he… | ||
| Scan108 | Instructions detailing tests to diagnose a steering wobble by adjusting steering tube springs. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. 3 Customer's No. 19 wobble was still present. I made two further tests, with a view to ascertaining whether the strength of the springs in the side… | ||
| Scan109 | Instruction sheet detailing an investigation into steering wobble by modifying the side steering tube. | ||
| View original record | R.R. 238 (24 n) (XK. 356. 8.9.13) E.P. 4910. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 19 To Order No. H Customer's No. side steering tube, & the contact pieces packed directly on to the ball ends, thereby… | ||
| Scan110 | Instructions to rectify a steering wobble by adjusting pivot inclination, wheel balance and adding packing washers. | ||
| View original record | R.R. 238 (24 n) (XK. 356. 8.9.13) E.P. 4910. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. 5 Customer's No. 19 Put the car right in respect to pivot inclination + wheel balance at the works Upon… | ||
| Scan111 | Internal instruction clarifying a procedure for curing steering wobble by adjusting pivot inclination. | ||
| View original record | R.R. 238 (24 B) (XX. 356. 8.9.13) E.P. 4910. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 19 To Order No. 6. Customer's No. morning that, so far, she finds the steering has been made quite satisfactory. Mr… | ||
| Scan112 | Instruction note discussing steering freedom, self-centering, and the cause of wheel wobbles. | ||
| View original record | R.R. 238 (21 m) (XX. 336. 8.9.13) E.P. 4910. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 19 To Order No. Customer's No. 7 Best results with the steering as regards freedom & self-centreing, & was not done with… | ||
| Scan113 | Report on steering wobbles and the need for further investigation. | ||
| View original record | R.R. 657. (100l) (VV.88. 19-11-13) E.P. 5408. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, Wor/SM21/L15114. DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and indicating letter.… | ||
| Scan114 | The investigation of a steering wobble issue and the need for a suitable test vehicle. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. Names and Indicating letter. Initial of person addressed. A Mr. ADAMS By Mr. BAILEY B Mr. BARRINGTON Bn Mr. BEREND Bt Mr. BURT... C Mr. CHAMBERLAIN Cn Mr.… | ||
| Scan115 | Internal memorandum discussing the investigation into a high-speed wobble or flutter issue in a car design. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR", DERBY" TELEPHONE: 476 (FOUR LINES) [Routing List] Mr. ADAMS Mr. BAILEY Mr. HOTCHINSHAW Mr. EVERNDEN Mr. CHAMBERLAIN Mr. COX Mr. DIXON… | ||
| Scan116 | Steering wobble, contradicting previous verbal statements and noting a potential fix. | ||
| View original record | ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and Indicating letter. A Mr. ADAMS By Mr. BAILEY Bn Mr. BARRINGTON B Mr.… | ||
| Scan117 | Modifications to the Side Steering Tube and springs to address steering wobble issues. | ||
| View original record | J. for R. 22.1.14. Da6/G21114. With reference to Mr. Moon's note con- cerning the arrangement of the Side Steering Tube F.2330 and the modifications you instructed to be carried out, I send a print… | ||
| Scan118 | Continued note on eliminating wobble using new heavy round springs under scheme B. | ||
| View original record | J. for R. 22.1.14. Da6/G21114 Contd. wobble can be eliminated. With these new heavy (scheme B) round springs, we can obtain any weight of spring we like, within limits, without over-stressing it. Da.… | ||
| Scan119 | Internal memorandum concerning a car with a steering wobble issue. | ||
| View original record | R.R. 657. (100H) (VV.400. 19.1.14) E.P. 3828. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Wor/Mcr26/L9214. Names and Indicating letter.… | ||
| Scan120 | Instruction sheet detailing a demonstration that a standard fix for a steering wobble was ineffective on a customer's car. | ||
| View original record | R.R. 238 (24 B) (VV. 225. 15.12.13) E.P. 5591 ROLLS-ROYCE, LIMITED. INSTRUCTIONS J. Febry 10th 1914. To: Mr. Wormald Order No.: Mr Morris Customer's No.: A.T. Re Steering wobbles X457. In accordance… | ||
| Scan121 | Demonstration of a car exhibiting a low-speed steering wobble. | ||
| View original record | Wor/Mcr14/L10214. Re Steering Wobbles. X.457. Wor. for Mr Harkness. 10-2-14. With reference to the demon- stration of a low speed steering wobble made by Mr Harkness to Mr Haldenby on Friday last Mr… | ||
| Scan122 | Returning blueprints with notes on a buffer spring design, suggesting improvements and testing. | ||
| View original record | COPY. R1/P. 16.2.14. To Da. from R. Copy to J. Copy to Na. Copy to Wor. Copy to M. Da6/G21114. I return herewith blue prints Nos. F.4612, and F.2330 on the former of which you will see my notes:-… | ||
| Scan123 | Mr Royce's suggested experiment to cure steering wobbles. | ||
| View original record | Wor/Mcr4/L27214. Re Steering Wobbles. X.457. Hy 27-2-14. In connection with the experiment you have been enquiring about, we wish to state that Mr Hives informed us on 8/9/13 that Mr Royce would like… | ||
| Scan124 | Letter from Madrid describing a severe steering wobble issue on poor roads. | ||
| View original record | C O P.Y. Piso 2, Calle Mayo, 23, Madrid. 3.3.14. Sir, There is a perfect fault of our cars which is very noticeable here in Madrid and to which I respectfully beg to draw your attention. The trouble I… | ||
| Scan125 | Suggestion for an experiment to mitigate steering wobble by fitting a hydraulic shock absorber to the front axle. | ||
| View original record | -2- angle of pivot and wheels approximately in balance. Some of these drivers have discovered the wobble gets less the faster theydrive and this may have something to do with the fact that it is… | ||
| Scan126 | Page 2 of a letter discussing the potential dangerous consequences of a steering wobble. | ||
| View original record | -2- fairly convinced that this steering wobble will prove to be the chief contributory cause of any future troubles here with fractured pivots, cross members or side members or perhaps loose dumb… | ||
| Scan127 | Internal memorandum discussing a suggestion from Mr. Peat in Madrid regarding steering wobbles. | ||
| View original record | R.R. 657. (100H) (VV. 586. 23.2.14) E.P. 6076. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONE: 476 (FOUR LINES). Wor/McrS/L13314. Names and Indicating letter. |… | ||
| Scan128 | Steering wobble, referencing previous reports and suggesting potential solutions like fitting shock absorbers. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Re. Steering Wobbles. EP18/W16314. With reference to your memo Wor/Mcr6/L13214, attaching Peat's… | ||
| Scan129 | Recurring issue with cars delivered to Madrid. | ||
| View original record | - 2 - what is being done on the matter, so that I can take up the point in connection with cars on test, as we are occasionally delivering cars for use in Madrid, and which from Peel's report would… | ||
| Scan130 | Suggestion to modify the steering gear by replacing the ball thrust bearing with hardened steel and fibre washers to introduce friction. | ||
| View original record | R.R. 235A (150 H) (V.V. 681 12-3-14) G. 0414. To Wor. for Mr. Hives from R. Copy to J. Copy to Na. Copy to Da. L6414 Hy 6414 Steering Gear with plain thrust bearing in column. X. 457. R2/P 1. 4. 14.… | ||
| Scan131 | Instructions regarding steering wobble on model 2025E, attributed to the extra weight of Palmer tyres. | ||
| View original record | (24 B) (WW. 755. 15.9.24) E.P. 7218. ROLLS-ROYCE LIMITED. INSTRUCTIONS. ENCLOSURE No 422 XH57 To: Wor. Order No. Customer's No. Re Steering Wobble on 2025E (recently at N) We are of opinion that the… | ||
| Scan132 | Instructions regarding steering oscillation and the recommended remedy of fitting a new H series steering tube. | ||
| View original record | R.R. 238 (24 B) (WW. 755. 15-9-14) E.P. 7218. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. Customer's No. increased, which tends to clamp out the oscillation, but we do not consider this a very… | ||
| Scan133 | Problem with Mrs. Trimmer's car, number 2025E. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (3 LINES). ENCLOSURE No 422 Names and Indicating letter. Initial of person addressed. A Mr. ADAMS Ax Mr.… | ||
| Scan134 | Internal routing slip concerning a letter incorrectly sent to Bombay and returned. | ||
| View original record | R.R. 657. (100H) (SA. 208. 25-1-15.) E.P. 7953. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and Indicating letter. | Initial of person… | ||
| Scan135 | Diagnosis and resolution of a low-speed steering wobble. | ||
| View original record | C O P Y. H4/FB8415. Re Whiteley 2G15E. N-W. Wor. We have in the above car another aggravated case of steering wobble at low speed ( about 12-15 m.p.h.). This car is fitted with 7" Palmer Tyres and has… | ||
| Scan136 | 'forward livot lean' issue on car 2015E and a potential fix involving a special steering tube. | ||
| View original record | H4/FB8415. Re William Whiteley. 2015E. Contd. We feel that you will not wish the car left with a forward livot lean, but unless you can suggest anything new as a cure, we do not know how we can deal… | ||
| Scan137 | Repair works and invoicing for chassis 2020E and 2015E, including a customer warranty dispute. | ||
| View original record | R.R. 657. (100H) (SA.431. 29.3.15.) E.P. 8297. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and Indicating letter. Initial of person… | ||
| Scan138 | Internal correspondence regarding a customer's steering wobble complaint on chassis 2020E. | ||
| View original record | R.R. 657. (100H) (SA.431. 29.5.15.) E.P. 8297. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and Indicating letter. Initial of person… | ||
| Scan139 | Financial liability for steering wobbles caused by customer-fitted tires. | ||
| View original record | R.R. 657. (100H) (SA.431. 29.3.15.) E.P. 8297. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). Names and Indicating letter. Initial of person… | ||
| Scan140 | Decision regarding chassis No. 2020-E and chassis No. 2015-E. | ||
| View original record | R.R. 637. (100H) (SA. 431. 29.3.15.) H.P. 8997. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: 'ROYCAR,' DERBY. TELEPHONES: 476 (FOUR LINES). Names and Indicating letter. | Initial of person… | ||
| Scan141 | Correspondence regarding a persistent steering wobble issue on car 2015E belonging to Mr. Whiteley. | ||
| View original record | COPY. HL/CD/F.615. Re 2015E - Whiteley. N-W Re CA4/DA28315. We must ask you to refer to your files very thoroughly on this matter, and to carry your investigations to when the car was delivered to Mr.… | ||
| Scan142 | Steering wobble issues caused by fitting heavy Palmer tires and the policy implications. | ||
| View original record | -2- know to fit a new type side steering tube with which you have since supplied us; but we do not hesitate to say that we fear we may bring on the wobble again when we return to standard pivot lean… | ||
| Scan143 | Chassis 2020E and 2015E, referencing a previous steering wobble issue. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and Indicating letter. Initial of person addressed. A Mr. ADAMS Ax Mr. ALEXEIEFF By Mr.… | ||
| Scan144 | Letter discussing the causes and solutions for low and high-speed steering wobbles, and a specific customer account. | ||
| View original record | COPY 1-/50- For your remarks please. sgd C.J. 21/6 To J. from R. R3/IB17615. June 17th. 1915. My dear J: Re Steering Wobbles. ---------------- With reference to Palmer tyres and steering wobbles, I… | ||
| Scan145 | Unnecessary repairs performed on a customer's vehicle to address a steering wobble issue. | ||
| View original record | To J. from R. 2. R3/IB17615. COPY joints in the cross steering tube. In this particular case of Mr Wm. Whiteleys, the steering nut, the cross steering tubes, new springs, dismantling the steering… | ||
| Scan146 | Responding to Mr. Royce's query about 'Steering Wobbles' on a customer's car. | ||
| View original record | (100h) (UU. 388. 13.6.14.) E.P. 6784. ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and Indicating letter. Initial of… | ||
| Scan147 | Cause of steering wobbles, attributed to heavy tires and steering tube design. | ||
| View original record | ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and Indicating letter. Initial of person addressed. A Mr. ADAMS By Mr.… | ||
| Scan148 | Page discussing the ongoing issue of low-speed steering wobbles with heavy tires. | ||
| View original record | (100H) (UU. 888. 15.6.14.) E.P. 6784. ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and indicating letter. Initial of… | ||
| Scan149 | Solutions for steering wobbles when using 7' Palmer tyres. | ||
| View original record | COPY. [Handwritten] 29615- No 1 Proceed with these experiments H R or J Royce To J. from R. Copy to Wor. for Hy. " " Da. R2/IB26615. June 26th. 1915. Re Steering Wobbles with 7" Palmers.… | ||
| Scan150 | Steering wobble issues related to large tyres and proposing experiments at the Derby track. | ||
| View original record | To J. from R. 2. R2/IB26615. the steering worm shaft, because ones arms in holding the wheel, are rather like an elastic connection resisting the movement almost entirely without friction. Why the… | ||
| Scan151 | Experiments on steering wobbles with 7-inch Palmer tyres, including a handwritten note to purchase new tyres and wheels. | ||
| View original record | R2/IB1985 Steering Wobbles with 7" Palmer Tyres. Hy. 30.6.15. Wor/Mcr1/L30615. We attach herewith memo from Mr Royce R2/IB26615, 2 memos from Mr Hanbury H1/CD22615 and H4/FB8415, D74/L7415,… | ||
| Scan152 | Clarifying how to procure 7' Palmer tyres for experiments on steering wobble. | ||
| View original record | D 1980 Steering Wobbles with 7" Palmer Tyres. ------------------ J. Wor/Mcrl/L1715. 1.7.15. We have received the correspondence you forwarded to us on the above together with your instructions that… | ||
| Scan153 | Gyroscopic origins of steering wobbles. | ||
| View original record | Misc. To R. from Da. Copy to J. 6th July, 1915. Da2/G6715. RE STEERING WOBBLES. With reference to your note to Mr.Johnson re the above, I am not sure whether it has been previously pointed out that… | ||
| Scan154 | Curing wheel oscillations and precession by altering the inclination of the pivots. | ||
| View original record | To R. from Da. Copy to J. -2- Da2/G6715 Contd. There are other things which affect the precession at the same time, viz, friction at the road surface, which "hurries" precession on the off-side (in… | ||
| Scan155 | Causes of wheel wobbling, resonance, and precession in vehicle steering systems. | ||
| View original record | To R. from Da. Copy to J. -3- Da2/G6715 Contd. In these cases, if it is not desired to retain the forward lean of the pivots, the period of resonance must be altered by changing one of the other… | ||
| Scan156 | Continued memorandum discussing resonant periods in wheels and the effect of friction. | ||
| View original record | To R. from Da. Copy to J. -4- Da2/G6715 Contd. destroys them on the car in all cases, except where a resonant period is struck, and in this case they die out, if the wheel is released, that is, if a… | ||
| Scan157 | Experiments and potential fixes for steering wobbles. | ||
| View original record | C O P Y 1785. H6/KB24715. Re Steering Wobbles. N-W. Handwritten: Copy to CP and Hy. 26.7.W 24th July 1915. We are in receipt this morning of a memo from Mr Northey informing us that you are about to… | ||
| Scan158 | Mystery of steering wobbles in connection with Palmer tyres. | ||
| View original record | H6/KB24715. Re Steering Wobbles. -2- because there is some mystery in connection with the matter. For instance it was not until Mr Whiteley had been using Palmer tyres for sometime that he suddenly… | ||
| Scan159 | Replying to an inquiry about steering wobbles, advising that a report will follow once experiments with 7' Palmer tyres are concluded. | ||
| View original record | 1785 Re Steering Wobbles. W-N H. 27.7.15. Wor/Mcr1/L27715. In reply to your memo H6/KB24715 in regard to steering wobbles, Mr Haldenby is at the present time away from the Works, but on his return we… | ||
| Scan160 | Inquiry requesting results from experiments concerning steering wobbles and offering a specific car for curing. | ||
| View original record | R.R. 662. (100H) (UU. 888. 15.6.14.) E.P. 6784. ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and Indicating letter.… | ||
| Scan161 | Steering wobbles and why experiments with 7' Palmer Tyres were not conducted. | ||
| View original record | 1760 Re Steering Wobbles. W/N. 16.9.15. Wor/Mcr4/L16915. With reference to your memo H3/EM15915, kindly note that the proposed experiments with 7" Palmer Tyres have not been carried out as we had no… | ||
| Scan162 | The preference for centre point steering on the front axle. | ||
| View original record | Extract from R/S/B.22918 '48? 1483 re 49 g.13 Referring to the steering of this car, the front axle should be of the centre point steering as near as we can carry it but in this particular instance I… | ||
| Scan163 | Stating the object is to investigate steering wobbles. | ||
| View original record | Object To see whether any further benefit can be derived with reference to steering wobbles. | ||
| Scan164 | Bad case of steering wobble on chassis No 1886 and potential investigation. | ||
| View original record | H12/KB61015. Re Steering Wobbles. We have a bad case of steering wobble in chassis No 1886. Sykes, and we should like to know whether you wish to take any part, say by sending someone here, in the… | ||
| Scan165 | Postponing an investigation into steering wobble as the relevant departments are focused on Aero engines. | ||
| View original record | 1915 Re Steering Wobbles. W/N 15.10.15. Wor/Mcr4/L151015. H. We are in receipt of your memo H12/K61015 but both the Experimental and Test Dept. are at present too busy concentrating their energies on… | ||
| Scan166 | Steering wobble tests on a Limousine, with an examination of the front axle and steering components. | ||
| View original record | ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and indicating letter. Initial of person addressed. A Mr. ADAMS By Mr.… | ||
| Scan167 | Series of operations and tests to diagnose and resolve steering wobble. | ||
| View original record | R.R. (tool?) (UU. 888. 15.6.14.) E.P. 6784. ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and indicating letter. Initial… | ||
| Scan168 | Series of operations to diagnose and fix steering wobbles on a Sykes model car. | ||
| View original record | ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and Indicating letter. A Mr. ADAMS By Mr. BAILEY Bn Mr. BARRINGTON B Mr.… | ||
| Scan169 | Issue of steering wobbles and potential remedies for a specific vehicle. | ||
| View original record | R.R. (tool) (U) (UU. 888. 15.6.14.) E.P. 6784. ROLLS-ROYCE LIMITED, CRICKLEWOOD LANE, LONDON, N.W. TELEGRAMS: "SILVAGOST, CRICKLE LONDON." TELEPHONE: HAMPSTEAD 5966. Names and indicating letter.… | ||
| Scan170 | Requesting the immediate processing of a report on steering wobbles. | ||
| View original record | 1755 R.R. 235 a (500 H) (S.B. 80. 12-10-15) G. 1578 Wor EP6/T/W301215. 30.12.15. Re. STEERING WOBBLES. With further reference to the above and our memo EP16/T/L11215, we shall be glad if you will… | ||
| Scan171 | Deferring an investigation into steering wobbles due to the urgent testing of a 75 HP Aero Engine. | ||
| View original record | T9L / 1184 Re Steering Wobbles. EP. 3.1.16. Mcr/D18/L3116. With reference to EP8/T/W301215 please note that at present the Experimental Dept. are far too busy to experiment into the cause of Steering… | ||
| Scan172 | Acknowledging a document concerning 'Steering Wobbles' and awaiting the results of experiments. | ||
| View original record | 1785 CA8/L14116 14.1.16. Wor. MCR. Re Steering Wobbles. We have noted contents of your MCR/D18/L3116, copy of which has been passed on to us. No doubt you will let us know in due course the results of… | ||
| Scan173 | Front and rear axle design for a post-war chassis, focusing on steering stability and shock absorption. | ||
| View original record | X.454. Contd. X.2565. - Post-War Chassis. -7- RG/W3.10.16. X.3441.X.454. X.968. (24) Front Axle. This should be as near as possible centre point steering, and if this gives any inclination for a… | ||
| Scan174 | Requesting a test to reduce steering wobbles by replacing ball thrust washers with plain fibre ones. | ||
| View original record | R.R. 285 a (200 T) (S.E. 517. 21-2-18) G. 2199 X 1785 To EH. from R. c. to CJ. X.1775 X.457. RE STEERING WOBBLES 3rd. December 1918. R1/G31218. We have from time to time asked for a test to be made… | ||
| Scan175 | Requesting tests to reduce steering wobble by replacing ball thrust washers with plain fibre ones. | ||
| View original record | R.R. 295 m (200 T) (S.E. 567. 21-5-18) G. 2129 X457 To EH. from R. c. to CJ. X.1795 X.457. RE STEERING WOBBLES 3rd. December 1918. R1/G31218. We have from time to time asked for a test to be made with… | ||
| Scan176 | Tests to add more friction to the 40/50 chassis steering by replacing ball thrust races with fibre washers. | ||
| View original record | X45Y To R. from Hs. c. to C. c. to EN. c. to E. c. to De. c. to EP. (Text is struck through) C.K. Hsl/LG16.2.20. X45Y. TESTS WITH MORE FRICTION ON 40/50 CHASSIS STEERING. X963 We have made a test by… | ||
| Scan177 | Experimental work and potential cures for swaying and unstable steering. | ||
| View original record | + 457. Hs. c. to Bn. EP20/F3.3.20. X.963. RE SWAYING AND UNSTABLE STEERING. X.457 X.3791. With reference to experimental work on the above, we have certainly been able to demonstrate with cars on test… | ||
| Scan178 | Tests and proposed solutions for unstable steering and springing issues on cars. | ||
| View original record | R.R. 228a (50 T.-S.H. 986. 19-2-0) G. 2048 x457 Hs. from EP. c. to BN c. to Da. c. to BY. EP7/F8.3.20 X.3441 - RE UNSTABLE STEERING AND SPRINGING. X.1242 X.457 We have been able to carry out tests on… | ||
| Scan179 | Car swaying issues related to under-slung springs and potential solutions. | ||
| View original record | contd. -2- EP7/F8.3.20. should they be dismantled at any time and incorrectly re-erected. Definite instructions should also be issued so that the load on each ball of the steering connecting tube can… | ||
| Scan180 | Steering wobbles, referencing correspondence from America and suggesting potential solutions. | ||
| View original record | To R from DA. Copy to EH. Copy to HY. Copy to HS. Copy to EFU. X.457 X.457 X.3791a STEERING WOBBLES. We attach herewith some correspondence and sketches from America with reference to Steering… | ||
| Scan181 | Technical analysis of the possible causes and contributing factors of steering wobbles. | ||
| View original record | STEERING WOBBLES. We should like to make the following suggestions as to a possible cause of steering wobbles:- (1). The mass that is being oscillated is the whole sprung weight of the car, pivoted… | ||
| Scan182 | Technical analysis of vehicle wobble, its contributing factors from steering and suspension, and proposed solutions. | ||
| View original record | The forward motion of the car adds energy enough to keep the oscillation going, in spite of slight friction in the various joints etc., but not in spite of relatively great friction, such as might be… | ||
| Scan183 | Internal extract discussing complaints and impressions of present production cars, specifically regarding tyres and workmanship. | ||
| View original record | X.454 Extract RG/G7.9.20. To C.J. from R. Copy to EAC. " " LHS. " " Sir. E. Goulding. " " SA. " " Wor. " " PN. " " Hs. " " EP. " " Da. " " By. " " H. " " R.R. of Am. Inc. (For the attention of Oy.)… | ||
| Scan184 | Steering faults, including 'steering wobbles', and potential remedies being considered. | ||
| View original record | R.R. 538a (100 T) (S. G. 645, 19-2-20) G 2618 Contd. -2- R6/G7.9.20. - STEERING. Our steering has been blamed for two faults, at the same time admired for its many virtues. No changes in design have… | ||
| Scan185 | Chassis design, covering lubricated springs, torque tubes, and electrical installation. | ||
| View original record | Contd. -4- R6/G7/19.20. the rush for output prevented these being fitted (as they required more time and testing) My impression is that with the lubricated springs (see other note why lubricated) they… | ||
| Scan186 | Customer complaints and findings on vehicle springing, steering wobble, and overoiling issues. | ||
| View original record | R.R. 255a (100 T) (S.H. 159, 11-8-20) G. 2806 X457 COPY. X.2626 6.10.20. "Have cabled works to-day as per attached. Hives. Chief trouble here is springing. Customers complain of being thrown about… | ||
| Scan187 | Vehicle springing, shock absorbers, and tyre performance issues, including customer complaints and comparisons to American cars. | ||
| View original record | -2- 22-LW. These plugs also give better slow running and maintain MA will bring some over." ( Copy of report from EP dated 7.10.20. ) ------------------------------------------ "As regards springing I… | ||
| Scan188 | Various vehicle faults and points for discussion. | ||
| View original record | -2- "Marmon car. Very bad even with long prop. has same faults. Note difference with and without shock absorbers. Shock absorbers. Note particulars French type enclosed There seems to be very few… | ||
| Scan189 | Report discussing vehicle springing, shock absorbers, and handling issues like wobbles. | ||
| View original record | X457 -2- 22-LW. These plugs also give better slow running and maintain so will bring some over.* (Handwritten annotations: X3461, X4050, X.437, X.2725, X2628) ( Copy of report from EP dated 7.10.20. )… | ||
| Scan190 | List of vehicle faults and issues, including problems with a Marmon car, steering, and engine components, for discussion. | ||
| View original record | -2- "Marmon car. Very bad even with long prop. has same faults. Note difference with and without shock absorbers. Shock absorbers. Note particulars French type enclosed There seems to be very few… | ||
| Scan191 | Steering characteristics and low-speed wobbles on a 40/50 HP chassis. | ||
| View original record | x457 Extract from E1/G8.10.20. RE VISIT OF MESSRS. HIVES. & DAY TO WEST WITTERING X.1698. TUESDAY 5th OCTOBER. 1920. STEERING - 40/50 H.P. CHASSIS. X.3791a. X.457. The combination of set-up springs,… | ||
| Scan192 | From GWH to Mr. Hives regarding the cause of steering wobbles. | ||
| View original record | X457. Mr. Hives. from GWH. GWH/ STEERING WOBBLES. With standard side steering tube fitted with solid plungers, when tightened up very tight, no wobbles can be got, but if slacked off the slightest… | ||
| Scan193 | Steering wobbles on the 5-EX Car, comparing different steering rod configurations. | ||
| View original record | Mr. Hives from GWH. X457 26.10.32. STEERING WOBBLES. Road Spring (front) 140 per min. Wobbles period 270 " " approx. Report on 5-EX Car steering with vertical pivots - friction in steering column.… | ||
| Scan194 | Test results for steering wobble on a 5-EX car at different speeds. | ||
| View original record | X457 Mr. Hives from GWH. 28.10.22. 5-EX CAR - STEERING WOBBLE TEST. With tyres 895 X 150 - 60 lbs.pressure. The period of wobbles came out as follows M.P.H. Wobbles per min. 6 312 6 280 6 288 6 320 6… | ||
| Scan195 | Test results for steering wobble on a 5-EX car at various speeds. | ||
| View original record | X457 Mr. Hives from GWH. 28.10.22. 5-EX CAR - STEERING WOBBLE TEST. With tyres 32 X 4½ - 60 lbs. pressure. The period of wobbles came out as follows :- M.P.H. Wobbles per min. 5 328 5 324 5 324 5 324… | ||
| Scan196 | Test report detailing the results of a steering wobble test at different speeds. | ||
| View original record | X457 Mr. Hives from GWH. 28.10.22. 5-EX - STEERING WOBBLE TEST. With tyres 33 X 5 - 60 lbs. pressure. The period of wobbles came out as follows :- M.P.H. Wobbles per min. 6 316 6 312 6 308 6 312 6 304… | ||
| Scan197 | Steering wobble tests carried out on a 5.EX Car. | ||
| View original record | Mr. Hives. from GWH. X407 28.10.22. Steering Wobbles. Tests carried out on 5.EX Car. With tyres 33 X 5 - 60 lbs. pressure - front springs bolted down choc-a-bloc and travelling at 6 m.p.h. - Wobbles… | ||
| Scan198 | Steering wobble measurements at different speeds for the 5-EX model. | ||
| View original record | Mr. Hives from GWH. X457 30.10.22. 5-EX - STEERING WOBBLES. M.P.H. Wobbles per min. 6 312 6 308 6 308 6 312 6 316 6 312 12 296 12 300 12 300 12 312 33 X 5" tyres fitted. GWH. | ||
| Scan199 | Steering wobble test conducted on an EX Car chassis. | ||
| View original record | Mr. Hives from GWH. X457 3.11.22. 5.EX CAR - STEERING WOBBLE TEST. With engine out and chassis towed - side steering rod as standard - 4 springs. Wobbles developed up at 6 m.p.h. but of not sufficient… | ||
| Scan200 | From GWH to Mr. Hives regarding a steering wobble test. | ||
| View original record | Mr. Hives from GWH. X457 9.11.22. 5-EX - STEERING WOBBLE TEST. Top half engine case with 200 lbs. bolted underneath. Wobbles developed up at same period and can easily be got - they are not violent -… | ||
| Scan201 | Test report on wobbles observed in a Delage car under different tyre pressures. | ||
| View original record | Mr. Hives from GWH. X.3525 X457 9.11.22. TESTS ON DELAGE CAR FOR WOBBLES. X.3525 Tests were carried out on this car in the condition as it arrived. Wobbles could be obtained at a speed of 22 k.m.hr.… | ||
| Scan202 | From GWH to Mr. Hives regarding steering wobble tests on the 5-EX car. | ||
| View original record | X457 Mr. Hives, from GWH. 9.11.22. 5-EX CAR - WOBBLE TESTS. (Steering) Top half of engine case with 200 lbs. bolted on top. Wobbles developed up easy and become violent - KIXM speed of wobbles being… | ||
| Scan203 | Steering wobble test for the 5-EX car. | ||
| View original record | Mr. Hives from GWH. X457 9.11.22. 5-EX CAR - STEERING WOBBLE TEST. Top half of engine case only - car towed. Wobbles of a mile character will develop and can be kept going. The speed of wobble appears… | ||
| Scan204 | Tests conducted to understand the causes and characteristics of steering wobbles in vehicles. | ||
| View original record | To R. from Hs. c. to CJ. c. to H. c. to Ds. c. to HY. x457 Rel/LG1/2.1.23. STEERING WOBBLES. x457 x1692 / x3500 The wobbles referred to in these tests are the violent wobbles of the road wheels which… | ||
| Scan205 | Tests conducted to investigate the causes and cures for steering wobbles. | ||
| View original record | contd:- -2- we are using now. We proved that tyre pressures made no difference to the period. We proved that whether we had buffer springs in the side steering tube or whether we had a straight tube… | ||
| Scan206 | Report page detailing tests on vehicle wobbles, focusing on the effects of tyre pressure, tyre type, and chassis weight. | ||
| View original record | contd:- -3- We found that the tyre pressure has a considerable effect upon the degree and the speed at which the wobbles take place. We have never yet been able to produce wobbles if we run on bare… | ||
| Scan207 | The causes of and potential solutions for steering and chassis wobbles in vehicles. | ||
| View original record | contd:- -4- instead of having the weight bolted to the under-side of the crankcase we fixed it to the top of the crankcase, wobbles could be built up. If we take a chassis which has wobbles and we… | ||
| Scan208 | The causes of and solutions for steering wobble in motor cars. | ||
| View original record | Contd:- -5- on the Delage is practically the same as our own - 310 per min. The Marmon we can wobble but in order to get them to build up, it is necessary to have a considerable amount of slack in the… | ||
| Scan209 | Causes of steering wobbles and proposing a new test for centre point steering. | ||
| View original record | To Hs. from R. c. to CJ. X457 R3/M16.1.23. RE. STEERING WOBBLES. X.457. Your experiments on steering wobbles are most interesting. Though we do not at present see any real way out of the difficulty… | ||
| Scan210 | Steering tests for a 40/50 car fitted with a front axle and disc wheels. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H.,D. EXPERIMENTAL REPORT. +457 Expl. No. REF:Hs6/LGL.4.24. STEERING. Y3165 X457 To R. from Hs. c. to CJ. RG. c. to E. DA. c. to BY. WOR. We have been testing a… | ||
| Scan211 | Tests on steering shock caused by driving over obstacles. | ||
| View original record | B.R. 493A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. Expl. No. REF: Hs6/LG1.4.24. We have carried out tests on a smooth flat piece of road by running the car over obstacles. We used some… | ||
| Scan212 | Steering tests and modifications to address low-speed wobbles. | ||
| View original record | B.R. 493A (40 H) (SL 42 12-7-28). J.H., D. -3- Expl. No. REF HS6/LG1424 EXPERIMENTAL REPORT. We have found a piece of road near Derby which approximates closely to a bad French road - we feel quite… | ||
| Scan213 | Performance of balloon tyres and associated steering wobble issues. | ||
| View original record | To Hs. from R. c. to CJ. BJ. +457 R3/M29.11.24. BALLOON TYRES. X.4565 X.457 On the 20 HP. balloon tyres have, I think, been a decided improvement, and though I have had this car very many times… | ||
| Scan214 | Article concerning American research on front wheel wobbles. | ||
| View original record | 1457 BJ5/H29.12.24. To BY. from DJ. Copies to Hs. EP. WHEEL WOBBLE. Doubtless you have already noticed the article concerning the American researches on front wheel wobbles, mentioned on page 1038 of… | ||
| Scan215 | Investigations into wheel wobble, comparing findings with American research and mentioning balloon tyres. | ||
| View original record | To B.J. from Hs. c. to EY. c. to EP. 4457 Hs3/LG30.12.24. WHEEL WOBBLE. Referring to BJE/H29.12.24. We have seen the full reports of the papers read in America on Wheel Wobble. The account given in… | ||
| Scan216 | Technical discussion on the causes and gyroscopic effects of high-speed wheel wobble. | ||
| View original record | V457 EO. c.Hs. G.E.P. HIGH SPEED WHEEL WOBBLE. ------------------------- I have already seen Mr.Hale's article in the Journal of the S.A.E. Mr.Hale himself represents the tyre manufacturers, and is of… | ||
| Scan217 | The use of balloon tyres, considering their impact on vehicle wobble, bounce, and steering. | ||
| View original record | - 2 - BY3/H. 30.12.24. R. will then consider whether it is advantageous to use the balloon tyres if a wobble still persists, and if so, he will of course introduce damping factors to keep the… | ||
| Scan218 | High-speed steering wobble issues related to Rapson and Dunlop tires on the Prince of Wales' car. | ||
| View original record | x457 H2/TB/2.1.25 S/W. Hs. from H. Re:- High Speed Steering Wobbles. Arising out of the oversize Rapson tires on 17-TM., H.R.H. The Prince of Wales' car, CJ. has asked me to put certain matters before… | ||
| Scan219 | Letter from Rapson Tyre & Jack Coy. Ltd. regarding a steering wobble issue on a car belonging to the Prince of Wales. | ||
| View original record | COPY. Telephone - MALDEN 190, 191 & 192. Telegrams - RAPSONIO, NEW MALDEN, SURREY. RAPSON TYRE & JACK COY. LTD., Telephone Malden 190, Tyre Factory, 191 & 192. NEW MALDEN, SURREY. Our Ref: FLR/DLM.… | ||
| Scan220 | Letter discussing tyre performance, racing records, and refuting claims of steering wobble at high speeds. | ||
| View original record | -2- and drivers interested in racing. In six months, every world's record, including all those which have stood since 1913 - from One Mile to 1800 Kilos - have been broken on these Oversize tyres. The… | ||
| Scan221 | Letter from the Rapson Tyre Company regarding tyre balance issues causing steering wobble on new car models with four-wheel brakes. | ||
| View original record | -3- 18th. December, 1924. As I understand the Rolls-Royce cars to which our Oversize tyres were fitted and tried in France were of the new four wheel brake type, it certainly seems that in that… | ||
| Scan222 | Editorial extract from 'The Autocar' on curing steering wobble by fitting Rapson oversize tyres. | ||
| View original record | COPY STEERING WOBBLE CURED BY FITTING RAPSON OVERSIZE TYRES. Editorial Extract from "The Autocar" dated December 5th.1924 - Page 1169 " Niggardly considerations connected with the price of new wheels… | ||
| Scan223 | Letter from Rapson Tyre & Jack Co. Ltd. detailing a successful high-speed tyre test on the Prince of Wales' car, comparing Rapson and Dunlop tyres. | ||
| View original record | Telephone - MALDEN 190, 191 & 192. Telegrams - RAPSONIO, NEW MALDEN, SURREY. COPY RAPSON TYRE & JACK COY. LTD. NEW MALDEN, SURREY. Our Ref: FLR/MW. December 23rd.,1924. Dear Sirs, For the attention of… | ||
| Scan224 | Letter from Rapson Tyre & Jack Coy. Ltd. regarding steering-wobble issues due to tyre pressure differences. | ||
| View original record | Telephone - MALDEN 190,191 & 192. Telegrams - RAPSONIO, NEW MALDEN,SURREY. COPY. RAPSON TYRE & JACK COY. LTD. NEW MALDEN, SURREY. Your Ref: BJ6/H231224 Our Ref: FLR/DLM. 27th. December, 1924. Messrs.… | ||
| Scan225 | Letter from Rapson Tyre & Jack Company discussing steering wobble issues and proposing tyre modifications. | ||
| View original record | -2- 27th. December, 1924. no wobble occurring at any speed between 10 and 80 miles per hour. As I informed you in my last letter, steering wobble commenced in the use of the Dunlop tyres at 75 miles… | ||
| Scan226 | Letter to The Rapson Tyre & Jack Coy. Ltd. regarding a tyre issue on H.R.H. The Prince of Wales' car. | ||
| View original record | COPY. CJ1/TB/311224. 31st. December, 1924. Messrs. The Rapson Tyre & Jack Coy. Ltd., New Malden, SURREY. For the attention of L. Rapson,Esq. Dear Sirs, We have to thank you for your letter of the 27th… | ||
| Scan227 | High-speed steering wobble issues caused by out-of-balance Rapson tyres compared to Dunlop tyres. | ||
| View original record | W/S. H. from Hs. X457 Hs3/LG9.1.25. HIGH SPEED STEERING WOBBLES. X1238 With reference to your H2/TB2.1.25. Our reply to CJ's question is that we have run over 100,000 miles in France on cars fitted… | ||
| Scan228 | Wheel wobble issues experienced in the Prince of Wales' car, particularly in relation to balloon tyres. | ||
| View original record | contd :- -2- on The Prince of Wales car were of a different character to those which are investigated in connection with balloon tyres. The wobble with balloon tyres is the most violent; it is such… | ||
| Scan229 | High-speed steering wobbles, referencing the Prince of Wales' car and a comparison of Rapson and Dunlop tires. | ||
| View original record | 4457 H7/TB/21.1.25 S/W. Hs. from H. Re:- High Speed Steering Wobbles. Your Hs3/LG9.1.25 has been attached to the papers in connection with the wobbles found on the Prince of Wales' car with Rapson… | ||
| Scan230 | Disputing mileage figures for Rapson tyres compared to Dunlop tyres on the 40/50 HP model, particularly regarding steering wobbles. | ||
| View original record | W/S. H. from Hs. 4457 Hsl/LG3. 2. 25. RAPSON TYRES. STEERING WOBBLES. Attached herewith are copies of reports sent to Messrs. Rapson in connection with 40/50 HP. tyres. We have never agreed that the… | ||
| Scan231 | Copy of a letter to Messrs. Rapson regarding a tyre test report in France. | ||
| View original record | C O P Y. 16th. June 1924. Hsl/LG. Messrs. Rapson, Burlington Rd., New Malden, Surrey. Dear Sirs, We attach herewith a report on the 33 X 5 tyres which we are running on a car in France. The average… | ||
| Scan232 | Performance report on Four Rapson Super Comfort SS. Cord Tyres. | ||
| View original record | C O P Y. FOUR RAPSON SUPER COMFORT SS. CORD TYRES. 33 X 5 (actual 33 1/4 X 6) returned to the makers on 17.7.24 per MM. Hernu, Peron, Paris. RR. No. and Makers No. | Where fitted. | REMARKS.… | ||
| Scan233 | Performance report on Rapson tyres fitted to car 98-NK, comparing noise, riding qualities and pressure loss. | ||
| View original record | COPY. RAPSON TYRES FITTED ON CAR 98-NK. NOISE. Tyres make very little noise. They are considerably quieter than 'Dunlops' especially on pave. RIDING QUALITIES. These tyres seem to ride considerably… | ||
| Scan234 | Letter to Messrs. Rapson regarding a delay in tyre reports and mileage information. | ||
| View original record | COPY. HS8/LG. 21st. Aug. 1924. Messrs. Rapson, Burlington Rd., New Malden, Surrey. Dear Sirs, We regret that we have not sent our usual report on the Rapson tyres but the Works have been closed for… | ||
| Scan235 | High-speed steering wobble issues when using low-pressure tyres. | ||
| View original record | R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 4457 REF: Hs1/L020.4.25. To R. from Hs. c. to CJ. BJ. c. to RO. H. c. to DA. EY. c. to Wor. LOW PRESSURE TYRES. 49830 If we use… | ||
| Scan236 | Page discussing the delayed testing of a scheme to solve steering wobble problems on 'V' series steering. | ||
| View original record | contd :- -2- sometime ago. The testing of this scheme has been held up, owing to other problems on 'V' series steering. We are very hopeful that it will provide a solution for steering wobbles. Hs. | ||
| Scan237 | The steering performance of a borrowed 20 HP Sunbeam car. | ||
| View original record | H.H. 493a (50 H) (D.D. 21. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. K457 REF. Hs1/LG16.5.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. 20 HP. SUNBEAM. STEERING. +46 We… | ||
| Scan238 | High speed steering wobbles on the 40/50HP Chassis. | ||
| View original record | +457 To Hs. - from Wor. " DV " - " " Wor2/M22/5/25. U. re High Speed Steering Wobbles on 40/50HP Chassis. I attach hereto copy of Br1/H20/5/25, and shall be glad if you will let me have your remarks… | ||
| Scan239 | High-speed steering wobble issues on the 40/50HP chassis. | ||
| View original record | COPY. N-W. Wor. from Br. Br1/H20/5/25. re High Speed Steering Wobbles on 40/50 Chassis. ----------------- We have recently received a fair number of complaints concerning the above trouble on 40/50HP… | ||
| Scan240 | Technical memorandum discussing the causes and remedies for high-speed steering wobbles on the 40/50 HP model. | ||
| View original record | X457. WOT. C. Hs. BY15/H. 22.5.25. HIGH SPEED STEERING WOBBLES - 40/50 HP. ------------------------------------ Referring to Br1/H.20.5.25. I did not realise that we were having difficulties from high… | ||
| Scan241 | High speed steering wobbles for the 40/50 model, detailing potential causes and remedies. | ||
| View original record | 4457 To Wor. from Hs. Hs2/LG22.5.25. 40/50 STEERING. 4457 x.3465 Referring to Brl/H20.5.25. At the moment we have no definite cure for high speed steering wobbles. This matter is being investigated at… | ||
| Scan242 | Wor. to Hs. forwarding a memo from Cricklewood and requesting views on a suggestion. | ||
| View original record | To Hs. - from Wor. x 457 Wor13/26/5/25. I attach hereto copy of memo I have received from Cricklewood. Please let me have your views upon BR's suggestion. Wor. Enc. | ||
| Scan243 | Steering wobble issue on a 40/50 model and its resolution by adjusting the front wheel track. | ||
| View original record | N-W. Wor. from Br. COPY. Br1/H25/5/25. Technical - 40/50 Steering. I thank you for your Wor2/M23/5/25 concerning the above matter, together with copies of the memos from Hs. and BY. The points they… | ||
| Scan244 | Wheel setting adjustments for 40/50 HP steering and the effects on tyre wear. | ||
| View original record | X3465 To Wor. from Hs. Hs1/LG27.5.25. 40/50 HP. STEERING. X3465 X4372 Referring to Br1/H25.5.25. We are keenly interested in the statements contained in the above memo. and will make a point of… | ||
| Scan245 | Steering wobble issues and a patented damped pendulum lever as a potential solution. | ||
| View original record | 457 To CJ. from R. c. to Wor. HS. BY. c. to EP. PN. R2/M20.6.25. RE. CARLOS DE SALAMANCA - AND X.457 THE KING OF SPAIN. X.3465 The steering wobbles is something beyond my control. It is due to either… | ||
| Scan246 | The causes of and remedies for high-speed steering wobbles. | ||
| View original record | X459 X457 To EP. from Hs. c. to Wor. Hs8/LG22.6.25. HIGH SPEED STEERING WOBBLES: X459 / X457 [crossed out] X8430 We recommend that the following information is circulated to all Depts and Officials :-… | ||
| Scan247 | Letter to Dunlop Rubber Co. concerning high-speed bounce and wobble in tyres due to imbalance issues. | ||
| View original record | Y457 C. Mailing Dept. C. Hd. C. Hs. C. MX. BY6/H. 30.6.25. June 30th, 1925. Tuesday Messrs The Dunlop Rubber Co., Ltd. For the attention of Colonel Matthew, Fort Dunlop, Erdington, Birmingham. Dear… | ||
| Scan248 | Complaints of a serious and dangerous wheel wobble on new designs, analysing its out-of-balance causes. | ||
| View original record | - 2 - We have had complaints from our own drivers in France particularly, who are making tests in connection with our new designs, and their reports are that the wobble is of a very serious nature and… | ||
| Scan249 | Responding to questions about steering gear, specifically addressing the phenomenon of 'steering wobbles'. | ||
| View original record | To C.J. from Hs. +457 Hs2/LG15.7.25. STEERING GEAR. X457 X8430 The following are our replies to the questions on the attached sheet ref. CJ15/E24.6.25 :- H: The fact that one of the tyres is worn more… | ||
| Scan250 | Continued document discussing out-of-balance Dunlop tyres causing wobbles. | ||
| View original record | contd :- -2- wobbles,have become worse is because, recently, Messrs.Dunlop have altered the manufacture of their tyres so that they are out-of-balance. This matter is being dealt with by us. We attach… | ||
| Scan251 | Letter to the Dunlop Rubber Co. Ltd. concerning high-speed bounce and wobble issues in balloon tyres due to imbalance. | ||
| View original record | COPY. c. Mailing Dept. c. Wd. c. Hs. c. Mx. June 30th. 1925. Tuesday. BY6/H. 30.6.25. Messrs. The Dunlop Rubber Co.Ltd., For the attention of Col. Matthew, Fort Dunlop, Erdington, Birmingham. Dear… | ||
| Scan252 | Letter discussing a dangerous wheel wobble issue and the analysis of out-of-balance effects. | ||
| View original record | contd :- -2- in connection with our new designs, and their reports are that the wobble is of a very serious nature and distinctly dangerous. We should therefore like to know what you propose to do in… | ||
| Scan253 | Cause of high-speed steering wobbles, attributing them to unbalanced road wheels. | ||
| View original record | X457 To C.J. from Hs. Hs3/LG13.7.25. STEERING GEAR. X457 +8430 With reference to the attached correspondence in connection with the above. The balance of the road wheels is a most important factor in… | ||
| Scan254 | Technical bulletin about the causes and solutions for high-speed steering wobbles. | ||
| View original record | To EP. from Hs. c. to Wor. C O P Y: HIGH SPEED STEERING WOBBLES+ We recommend that the following information is circulated to all Depots and Officials :- There have been complaints of wobbles in the… | ||
| Scan255 | Investigating and damping low and high-speed steering wobbles, comparing performance with a Hispano car. | ||
| View original record | R.R. 493A (50 M) (O.D. 31. 12-6-25) J.M.D. EXPERIMENTAL REPORT. Expl. No. 4457 REF: HS4/LG/7.7.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. STEERING. 4214 We find we can… | ||
| Scan256 | Steering oscillation, the damped pendulum lever, and the effect of buffer springs. | ||
| View original record | R.R. 439a 50(H) (D.O. 31. 17-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hsd/LG17.7.25. which causes violent oscillation of the steering. The damped pendulum lever has the effect of… | ||
| Scan257 | Ongoing problem and experiments related to steering wobbles. | ||
| View original record | 457 Wor. BY3/H. 11.8.25. STEERING WOBBLES. ------------- Referring to CJ3/D.10.8.25. and FN3/LH. 6.8.25. which I return herewith, the position in regard to the steering wobble problem, at Derby, at… | ||
| Scan258 | Instruction to correct a high-speed wobble fault by potentially introducing a damped steering lever. | ||
| View original record | - 2 - 5. In regard to CJ's instruction that we should sacrifice output if necessary, in order to permit of the correction of this fault at the earliest possible moment, I would like to point out that… | ||
| Scan259 | High-speed steering wobbles, potential causes like tyre imbalance, and comparisons between the New Phantom and Silver Ghost models. | ||
| View original record | To CJ PN Hs. } FROM R. 457 R1/M/1.8.25. RE. STEERING. X.8430 X.457 X.4565 PN's memo. received this morning is very alarming. I do not think however it can be quite as bad as it appears, otherwise we… | ||
| Scan260 | Testing two 20 HP cars, one with balloon tyres and one without, detailing adjustments to damping to improve riding. | ||
| View original record | contd :- -2- wobble, and therefore the car may give inconsistent results. Just before the holidays we tested two 20 HP. cars one with balloon tyres and one without, and it was thought that the balloon… | ||
| Scan261 | 'V' series steering tests regarding driving springs, damping friction, and low-speed wobbles. | ||
| View original record | R.R. 493A (50 M) (D.D. 31. 12-6-25) J.B.D. EXPERIMENTAL REPORT. Expl. No. x457 REF: Hs/Rm2/LG18.8.25. + To R; from Hs/Rm. c. to Hs. STEERING 'V' SERIES. +8430 +457 With reference to the tests at… | ||
| Scan262 | Investigations into high-speed steering wobbles. | ||
| View original record | R.R. 498a (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. X457 REF: Hs/RML/LG12.8.25. To R. from Hs/Rm. c. to Hs. HIGH SPEED STEERING WOBBLES. X8430 We have been carrying out… | ||
| Scan263 | High-speed steering wobble and its relation to tyre pressure and steering tube springs. | ||
| View original record | R.R. 498A (50 Bks-50. 1-6-25) J.H.L. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Bml/L/12.8.25. As an example, we obtained a wobble at 66 m.p.h. with a tyre pressure of 60 lbs. per sq. in. This wobble… | ||
| Scan264 | Investigations into high-speed steering wobbles. | ||
| View original record | R.R. 488a (50 M) (D.D. 21. 12-6-25) .H.D. EXPERIMENTAL REPORT. Expl. No. +457 REF: Hs/Rm1/LG12. 8. 25. To R. from Hs/Rm. c. to Hs. HIGH SPEED STEERING WOBBLES. We have been carrying out investigations… | ||
| Scan265 | High-speed steering wobble, its relation to tyre pressure and the effect of side steering tube springs. | ||
| View original record | R.R. 483A (50 H) (D.D. 31, 12-6-25) J.H.L. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Rml/LG12. 8.25. As an example, we obtained a wobble at 66 m.p.h. with a tyre pressure of 80 lbs. per sq.in. This… | ||
| Scan266 | Arranging the examination of a demonstration car at West Wittering to investigate a steering wobble. | ||
| View original record | To P.N. from B.J. Copies to... R. Hs. O.J. W.W. By. X457 STEERING. With reference to H1/M11.8.25, O.J. considers it will be of assistance to R. if you will kindly arrange to take the demonstration car… | ||
| Scan267 | Causes and proposed solutions for high-speed steering wobble, believed to be an epidemic caused by lower pressure tyres. | ||
| View original record | +457 To CJ. from R. c. to BJ. Wor. c. to Hs. PN. BY. RE. STEERING. R2/M13. 8. 25. X. 8430 X. 457 With reference to the visit of PN. and Hs. today, we have come to the conclusion that this phenomenon… | ||
| Scan268 | Investigation into high-speed steering wobbles, asking for specific measurements and proposing a testing method. | ||
| View original record | To Hs. from DA. X 457 DA2/M14.8.25. X.457 X.8430 HIGH SPEED STEERING WOBBLES. With reference to the conference on Thursday we wish to inform you that we are proceeding to design an hydraulic damper on… | ||
| Scan269 | Solutions for steering wobbles, including tyre balancing, tyre pressure, and steering ratio adjustments. | ||
| View original record | To SI. from BJ. Copies to Hs. Hyde W-O-H PN STEERING. PN: reports that he and Hs. had a very useful conversation with R. and the West Wittering people yesterday concerning steering wobbles. The… | ||
| Scan270 | Steering wobble issues, proposed testing, and potential solutions for Phantom cars. | ||
| View original record | -2- to issue cars in their present state when they have had the wheels balanced and the customer has been instructed to keep the tyres up to the high pressure necessary, whilst we are experimenting.… | ||
| Scan271 | Postscript memorandum outlining the delivery schedule and position for Phantom models. | ||
| View original record | -3- P.S. The following is the position of Phantom deliveries:- Delivered to date. By End August. By End Sept'br. By End October. By End November. 132. 160. 224. 300. 356. These will probably be… | ||
| Scan272 | Issue of 'wobbles' on fast cars and its prevalence among other manufacturers. | ||
| View original record | S/WT(HS) XC457 BJ TO CJ. BJ/LH15.8.25. In FN's report of his conference at West Wittering, concerning 'wobbles' which I dictated yesterday, as he related it to me, he mentions that in his opinion,… | ||
| Scan273 | Cover note for a list of experiments requested by Mr. Royce regarding steering wobbles. | ||
| View original record | To Hs. from DA To BY. from DA. x457 DA/LG15.8.25. STEERING WOBBLES. x8430 Attached is a list of experiments Mr. Royce would like carried out on the question of steering wobbles. He instructs me to… | ||
| Scan274 | From Mr. Royce proposing experiments to investigate high-speed steering wobbles. | ||
| View original record | To Hs. from DA. BY. from DA. DA4/15. 8. 25. HIGH SPEED STEERING WOBBLES. Mr. Royce thinks several chassis should be utilised for these experiments, one atleast being a Silver Ghost so that the… | ||
| Scan275 | Experiment to stiffen the vehicle frame horizontally with gussets and stay plates, comparing Phantom and Silver Ghost models. | ||
| View original record | existing contd :- Bring this as near the Cross member as convenient clearing brake pedal. gusset secured to frame by angle and bolts through web near the bottom flange thus :- The object of this is to… | ||
| Scan276 | Questions and diagrams regarding steering dynamics, wheel wobble, tyre pressures, and wheel weights for 40/50 or Phantom models. | ||
| View original record | contd :- -3- (8) Taking a radius rod controlled (40/50 or Phantom) what is minimum safe lean for braking and good steering on corners at high speed. What effect has this minimum lean on high and low… | ||
| Scan277 | Insurance and liability risks for high-speed road tests concerning steering wobbles. | ||
| View original record | To BJ: from Hs. 4457 Hs3/LG17. 8.25. ROAD TESTS ON HIGH SPEED STEERING WOBBLES. 4457/4676 It was agreed that we should insure the drivers carrying out the 10,000 miles tests in France because they… | ||
| Scan278 | High speed steering wobble experiments and the relationship to tyre pressure. | ||
| View original record | To hs. from DA. fus7 DA1/M1 7.8.25. HIGH SPEED STEERING WOBBLE EXPERIMENTS. X.457 X.3538 We understand from R. that there is a report on the results of tests with different tyre pressure, but so far… | ||
| Scan279 | High-speed steering wobbles and related component tests. | ||
| View original record | R.R. 493A (50 M) (D.D. 31. 12-8-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. 4457 REF: Hs4/LG17.8.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES. 4450… | ||
| Scan280 | High-speed steering wobbles in 'V' series cars. | ||
| View original record | R.R. 438a (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF: Hs/Rml/LG17. 8. 25. HIGH SPEED STEERING WOBBLES. We have been carrying out continuous experiments with regard to this… | ||
| Scan281 | High-speed wobbles, testing the effects of tyre pressure, wheel gather, and steering tube springs. | ||
| View original record | R.R. 488a (50 M) (D. D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF. Hs/Rml/LG17. 8. 25. In addition, the rotational moment of inertia of the balloon tyre and wheel is 15% less than the… | ||
| Scan282 | High-speed wobbles, testing the effects of different springs, axle inertia, and front-end weight. | ||
| View original record | R.R. 493a (50 M) (O.D. 31. 12-6-25) J.B.D. EXPERIMENTAL REPORT. -3- Expl. No. REF. Hs/RmL/LG17. 8. 25. side steering tube springs we tried against standard were very weak and would undoubtedly promote… | ||
| Scan283 | Cover letter for a file containing investigations into steering wobbles. | ||
| View original record | To DA. from Hs. X457 Hs6/LG17.8.25. STEERING WOBBLES. We are sending you herewith our file in connection with the above which gives results of a number of investigations by different people. We should… | ||
| Scan284 | High-speed steering wobbles on a Phantom car due to varying tyre pressures. | ||
| View original record | To DA. from Hs. c to E [handwritten] Y457 [handwritten] Hs/Rml/LG17.8.25. HIGH SPEED STEERING WOBBLES. Y457 [handwritten] With reference to DA2/M14.8.25 - question 2. Herewith alterations of road… | ||
| Scan285 | Table of test results logging vehicle stability and control at various tyre pressures. | ||
| View original record | Tyre press: lbs/sq". | ADVANCE M.P.H. | RETARD. M.P.H. | TOE IN. | WHEEL BALANCE. | PIVOT LEAN. .125 / .150" | REMARKS. 60 | 66 | 66 | 1/8" | 1 lb. out. | " | Not very violent, fairly easily… | ||
| Scan286 | Correcting a typographical error in a previous document regarding steering wobbles. | ||
| View original record | To R. from BJ. c. to Hs. c. to BY. c. to Wor. c. to PN. c. to EP. Handwritten: Hs. V457 BJ1/D17.8.25. Steering Wobbles. Please note that the word "not" in the 4th line of BJ3/LH15.8.25 was deleted in… | ||
| Scan287 | Causes and potential solutions for high and low-speed steering wobbles and road shocks. | ||
| View original record | To Hs. from R. c. to CJ. BY. c. to PN. BY. c. to DA. 457 R4/M.7.8.25. HIGH AND LOW SPEED STEERING WOBBLES AND ROAD SHOCKS.. X.457 X.8520 We have come to the following conclusion which we would like… | ||
| Scan288 | Discussion and series of questions regarding steering dampers, friction surfaces, and the effects of lubrication and load on vehicle handling. | ||
| View original record | contd :- -2- it put on temporarily, probably in the form of the Houdaille ordinary axle damper, but we do not think it will require any valves, and for experimental purposes would be fitted with a… | ||
| Scan289 | The amount of mechanical friction needed to prevent high-speed wobbles and the resulting driver fatigue. | ||
| View original record | contd :- -3- required for the high speed wobbles? We understand that the amount of mechanical friction we have to apply to be sure that high speed wobbles do not occur results in fatigue to the driver… | ||
| Scan290 | Query regarding steering wobbles on cars fitted with front-wheel brakes tested in France. | ||
| View original record | 4457 To Hs. from BJ. BJ16/H18.8.25. STEERING WOBBLES. During the tests of the cars fitted with front wheel brakes in France were any steering wobbles experienced? B.J. | ||
| Scan291 | Modifications to address high speed steering wobbles on cars 98-NK and 5-EX. | ||
| View original record | To RHC. from Hs/Rm. 4459 Hs/Rm2/LG18. 8. 25. HIGH SPEED STEERING WOBBLES. We are anxious to make 98-NK into a standard Phantom steering for trial tomorrow morning. This means standard pendulum lever… | ||
| Scan292 | Trying a horizontally mounted hydraulic shock absorber to fix high-speed steering wobbles. | ||
| View original record | To Hs. from DA. DA1/M1 8. 8. 25. HIGH SPEED STEERING WOBBLES. X.457 X.1152. We believe you are trying, or have tried, a shock absorber working horizontally, and either coupled to the cross steering… | ||
| Scan293 | Ongoing tests and potential modifications for various steering system components. | ||
| View original record | To Hs. from R. c. to CJ. FN. c. to BY. Hm. EP. X457 R1/M18.8.25. STEERING. X.8430 X.457 X.4565 We shall be pleased to see you at any time you think it profitable and convenient to come to WW. We are… | ||
| Scan294 | Technical memorandum discussing modifications to the cross steering arm and investigating the causes of high-speed steering wobble. | ||
| View original record | contd :- -2- modification to the R.H. cross steering arm which will require another ball. Particulars of this will be sent you today, and the designs for the hydraulic damper will be sent this week.… | ||
| Scan295 | Solutions for high-speed wobbles by adjusting weight distribution, tyre balance, and damper design. | ||
| View original record | contd :- -3- and possibly the weight of the front of the car on a given inflated tyre may affect the time and intensity, and the possi- bility of these high speed wobbles building up. You will… | ||
| Scan296 | New Phantom handling issues compared to the Silver Ghost, focusing on weight, chassis flexibility, steering, and tyre balance. | ||
| View original record | contd :- -4- tube and the damper lever. We cannot understand why New Phantom is worse than Silver Ghost, but naturally it is (1) somewhat heavier forward, (2) it is more top heavy forward which may be… | ||
| Scan297 | Preliminary investigation into high-speed steering wobbles. | ||
| View original record | R.R. 493a (50 H) (U.D. 31. 12-6-25) J.H.D. 4457 EXPERIMENTAL REPORT. Exptl. No. REF: Hs/Rml/LG18. 8. 25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| Scan298 | Investigating high-speed steering wobbles on Phantom and Silver Ghost chassis. | ||
| View original record | R.R. 493a (50 H) (D.D. 31. 12-8-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF Hs/RmL/LG18. 8. 25. contact is set to measure every thing over a certain small amplitude. On the record in question we… | ||
| Scan299 | The protocol for road tests on high-speed steering wobbles. | ||
| View original record | X457 To Hs. from BJ. BJS/H18.8.25. Road Tests on High Speed Steering wobbles. ____ Hsg/LG17.8.25. I agree to your suggestions. With regard to the penultimate paragraph of your memo., if possible… | ||
| Scan300 | Wheel balancing on Phantom models, advising against temporary balance weights due to potential for serious out-of-balance issues. | ||
| View original record | To BJ. from R. c. to CJ. PN. Hs. c. to EY. EP. X457 RL/M19.8.25. STEERING. X.8430 X.457 In reply to your telephone message of this morning I quite agree that no Phantoms should be issued unless the… | ||
| Scan301 | Potential improvements to reduce steering wobble, including dampers, spring levers, and worm gears. | ||
| View original record | contd :- -2- improvement can be made. This commences with lowering the rate of steering so that wobble shocks, and other shocks, do not reach the hands. The larger worm will go further in this same… | ||
| Scan302 | Measuring high-speed steering wobbles on a Phantom car. | ||
| View original record | R.R. 493a (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. fu57 REF: Hs/Rm/L.G19. 8. 25. To R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING… | ||
| Scan303 | High-speed steering wobbles, detailing the measurement of their amplitude and phases. | ||
| View original record | R.R. 493a (50 H) (D.D. 21. 12-6-25) J.H.D. +457 EXPERIMENTAL REPORT. Expt. No. REF: Hs/Rm1/LG19. 8. 25. To R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING… | ||
| Scan304 | Steering wobble issues on Phantom and Silver Ghost models, attributing the problem to low-pressure and out-of-balance tyres. | ||
| View original record | To B.J. from Hs. 4457 Hs3/LG20.8.25. STEERING WOBBLES. 4457 78430 On all Phantom cars which have been tested in France, steering wobbles have been experienced and reported upon. This information was… | ||
| Scan305 | High-speed steering wobbles caused by low-pressure tyres on 40/50 HP cars. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. COPY. Expl. No. REF: Hs1/LG20.4.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. LOW PRESSURE TYRES. x9430 x457 If… | ||
| Scan306 | Page two of an experimental report regarding a delayed test on a scheme to solve steering wobble problems. | ||
| View original record | R.R. 493A (50B) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hsl/LG20.4.25. made by you sometime ago. The test of this scheme has been held up owing to other problems on 'V'… | ||
| Scan307 | Prevention of high-speed steering wobbles by balancing wheels and maintaining correct tyre pressure. | ||
| View original record | X457 EU. c.c. EU. c. O.W. c, Hs. BY8/H. 20.8.25. HIGH SPEED STEERING WOBBLES. -------------------------------- Confirming our conversation on the telephone of this morning's date, I have discussed the… | ||
| Scan308 | Investigations into high-speed steering wobbles. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 4457 REF.HS12/LG20.8.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| Scan309 | Wire confirmation regarding the effectiveness of front shock dampers in reducing axle vibrations. | ||
| View original record | CONFIRMATION OF WIRE. X457 BH WEST WITTERING. 21. 8. 25. HIVES. ROYCAR. DERBY. PROBABLY FRONT SHOCK DAMPERS MORE EFFECTIVE THAN AT PRESENT REALISED. TO REDUCE CRISS CROSS VIBRATIONS AXLE TEST NORMAL… | ||
| Scan310 | Causes of and solutions for front-end wobble, identified as an 'epidemic' linked to out-of-balance tyres. | ||
| View original record | To Hs. from R. c. to CJ. BJ. c. to PN. BY. EP. STEERING. X.8430 X.457 +457 We have wired you today as follows :- "PROBABLY FRONT SHOCK DAMPERS MORE EFFECTIVE THAN "AT PRESENT REALISED. TO REDUCE CRISS… | ||
| Scan311 | Continued memo on the investigation into the causes and remedies of steering wobble, termed 'pit-pat', in the Phantom model. | ||
| View original record | contd : -2- the steering being sufficiently quickly deflected. We are now fairly satisfied that we know the nature of the phenomenon sufficiently well for us to try the remedies suggested. It will be… | ||
| Scan312 | Letter from F.H. Royce discussing the causes and solutions for high-speed steering wobbles, known as 'sobbles'. | ||
| View original record | Copy to CJ. BJ. HS. PN. BY. EP. 4457 "ELMSTEAD" WEST WITTERING, CHICHESTER. Senor C. de Salamanca, MADRID. 21st. Aug. 1925. My dear Carlos, STEERING. X.457 X.8430 X.4565 Regarding the high speed… | ||
| Scan313 | Tests for high-speed steering wobbles on Phantom and Silver Ghost cars. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. Expl. No. REF Hs/Rm2/LG21.8.25. 7657 HIGH SPEED STEERING WOBBLES. We… | ||
| Scan314 | Steering friction and tests investigating wheel wobble using front shock absorbers and balanced wheels on a 'Phantom' model. | ||
| View original record | R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Rm2/LG21. 8. 25. they were not apparent to the driver. With 12 lbs. friction, the steering was not at all nice,… | ||
| Scan315 | The nature and causes of wheel wobble, including observations of tire marks on the road. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. -3- EXPERIMENTAL REPORT. Expl. No. REF Hs/Rm2/LG21.8.25. The amplitude is in excess of 8° as the instrument was set to record only those wobbles causing a… | ||
| Scan316 | Analyzing the causes and characteristics of 'criss-cross' axle vibration or wobble. | ||
| View original record | R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -4- Expl. No. REF: HS/Rm2/LG21. 8. 25 (1) The strength of the road springs. (2) Their distance apart. (3) The moment of inertia of the… | ||
| Scan317 | Measuring and damping wheel wobbles and vibrations on Phantom and Silver Ghost models. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -6- Expl. No. REF. Hs/Rm2/LG21. 8. 25. With regard to amplitude of these wobbles. We set our instrument to measure wobbles of over 8º… | ||
| Scan318 | Telegram concerning the effectiveness of front shock dampers and axle vibration tests. | ||
| View original record | Time handed in: 10.33 M. Office of Origin: Chichester T. Words: 28. Message: Hives Roycar Derby. Probably front shock dampers more effective than at present realised Stop Reduce Crisscross Vibrations… | ||
| Scan319 | Defending the Experimental Department's handling of tyre pressures and addressing issues of steering wobble. | ||
| View original record | To BJ. from Hs. To CJ. from Hs. c. to EY. +451 Hs4/LG21.8.25. STEERING. +S430 With reference to BJ17/H20. 8. 25. The Experimental Dept. take great exception to the 2nd. para. in this memo. as regards… | ||
| Scan320 | Letter to Dunlop Rubber Co. seeking a mathematical explanation for high-speed steering wobbles. | ||
| View original record | Hs/Rml/LG. X457 Messrs. The Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. 21st. Aug. 1925. Dear Sirs, For the attention of Mr. Healey. Development Dept. X457 X4565 HIGH SPEED STEERING… | ||
| Scan321 | Proposed hydraulic damper for the Phantom front axle to solve high-speed wobble issues. | ||
| View original record | To BY. from DA. c. to CJ. Hs. +457 DA1/M22. 8.25. PHANTOM FRONT AXLE. X. 8420 X. 8430 X. 457 X. 8425 Herewith we send N.sch. 2045 shewing the proposed hydraulic damper for the front axle for use in… | ||
| Scan322 | High-speed steering wobbles, wheel balancing schemes, and potential solutions. | ||
| View original record | To CJ. from R. c. to BY. Hs. 457 R1/M22. 8. 25. X.457 X.8430 HIGH SPEED STEERING WOBBLES+ So far we have not much hope of modifying the chassis or steering so that this phenomenon cannot happen. It… | ||
| Scan323 | Continued note on testing chassis configurations to address high-speed wobbles on Silver Ghost and Phantom models. | ||
| View original record | contd :- -2- the new steering box, larger dia. of worm, and (1) and (2). (4) In the midst comes another chassis with Nos. (1) and (3) plus an hydraulic damper to act quickly enough for steering, but… | ||
| Scan324 | Clarifying a previous communication regarding tyre pressures for open and closed body cars. | ||
| View original record | To Hs. from BJ. Copy to By. X457 STEERING. With reference to your memo. Hs4/LG21.8.25, my memorandum to CJ. was written at a time when I was under the impression, from a conversation I had had with… | ||
| Scan325 | Query regarding steering wobbles, wheel balancing, and tyre pressures for cars with front-wheel brakes and the 'New Phantom' model. | ||
| View original record | K457 To Hs. from BJ. BJ2/H22.8.25. STEERING WOBBLES. From your experience of wobbles, do you consider that the wheels of all cars fitted with front wheel brakes, as well as the "New Phantom" cars,… | ||
| Scan326 | High-speed steering wobbles, comparing balloon and high-pressure tyres and testing front shock absorber adjustments. | ||
| View original record | R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 4657 REF: Hs/Rml/LG22. 8. 25. To R# from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| Scan327 | Responding to queries about tests in France, concerning Dunlop tyre pressures and wheel balance issues. | ||
| View original record | 4057 To B.J. from Hs. c. to CWB. c. to EY. Hsl/LG22.8.25. TESTS IN FRANCE. 48940 With reference to CWBL/LH21.8.25. Our replies to the points raised are as follows :- (1) Dunlop tyres. (2) We have… | ||
| Scan328 | Method for balancing wheels using dummy bolts, lead washers, and Bakelite washers after a discussion with the Dunlop Company. | ||
| View original record | c. HS. R. CJ. BJ. X457 BYB/H. 22.8.25. BALANCING OF WHEELS. With reference to the above question of and in reply to R1/M. 19.8.25. Mr.Faull and Colonel Matthew of the Dunlop Company came over to Derby… | ||
| Scan329 | Schemes for balancing existing wheels and tyres, referencing correspondence with the Dunlop Company. | ||
| View original record | - 2 - BYS/H. 22.8.25. ------------ The foregoing represents the scheme which would be at once put in hand for balancing existing wheels and tyres. In connection with possible future changes, I attach… | ||
| Scan330 | Letter from Dunlop Rubber Co. to Rolls Royce discussing the balancing of wheels and tyres. | ||
| View original record | Copy The Dunlop Rubber Co.Ltd. Fort Dunlop, Erdington. Birmingham. Development Supt. 21st August, 1925. Messrs Rolls Royce Ltd. Derby. Dear Sirs, Balancing Wheels and Tyres. -----------------------… | ||
| Scan331 | Proposal from Dunlop Rubber Co. regarding wheel balance adjustments using dummy bolts and lead washers. | ||
| View original record | - 2 - It is necessary to point out that some disturbance of balance can be effected in the act of fitting the cover - that is to say, if the cover is not correctly adjusted on the rim a sufficient… | ||
| Scan332 | Technical analysis of high-speed steering wobbles, discussing wheel precession and spring frequency. | ||
| View original record | Tohs. from DA. X457 DA1/M24.8.25. X.457 X.8430 HIGH SPEED STEERING WOBBLES. If the precession of the wheels is a forced one it looks as though a very great torque would be required to keep it going.… | ||
| Scan333 | Letter from Dunlop discussing high speed steering wobbles and tyre balance issues. | ||
| View original record | Telegraphic Address. "DUNLOPS, BIRMINGHAM". Telephone No. BIRMINGHAM CENTRAL 4108. PRIVATE BRANCH EXCHANGE. 25 LINES. Registered Offices. DUNLOP HOUSE, 1, ALBANY ST LONDON, N.W.1. BY APPOINTMENT… | ||
| Scan334 | Continuation letter from Dunlop Rubber Co. Ltd. discussing the causes and effects of wheel wobble in relation to tyres and road conditions. | ||
| View original record | A121 D. R. Co. LTD. CONTINUATION SHEET No. p. 2. 19 Further, your previous results with high pressure tyres, showed that the wobble may be maintained, even when the two periods referred to do not… | ||
| Scan335 | Low-speed steering wobble issues in 20 HP cars fitted with 4-wheel brakes. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. X457 REF: Hs6/LG24;8.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. 20 HP. CAR FITTED WITH 4-WHEEL… | ||
| Scan336 | Specifications for friction devices on 20 HP pivots, with and without front wheel brakes. | ||
| View original record | COPY. Hs/CAP/LG20. 8.25. PARTICULARS OF FRICTION DEVICES ON 20 HP. PIVOTS. G.11. PIVOTS (NO FRONT WHEEL BRAKES). No. of friction washers keyed to pivot pin = 3 " " " " stub axle = 2 " " floating… | ||
| Scan337 | Steering issues, instability, and diving with chassis 9-C-111, detailing causes and proposed improvements. | ||
| View original record | COPY. Hotel de France, Chateauroux, Indre, France. GWH12/Cml1.8.25. To Hs. from G.W.Hancock. RE. CHASSIS 9-C-111. We have reported that the steering has become much lighter, also shocks on steering… | ||
| Scan338 | Steering wobbles, the importance of wheel balancing, and recommended tyre pressures for specific models. | ||
| View original record | To BJ. from Hs. c. to BY. c. to Wor. c. to EF. X457 Hs1/LG24. 8. 25. STEERING WOBBLES. When considering balancing the wheels in order to prevent steering wobbles, this must apply to all cars fitted… | ||
| Scan339 | High-speed steering wobbles, detailing calculations of amplitude and time from chronograph records. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 4457 REF Hs/Am/1024.8.25. To R. from Hs./Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| Scan340 | Desirability of balancing the front wheels of 'Silver Ghost' cars. | ||
| View original record | To Wor. from BJ. Copies to Hm. Hs. Et. By. OJ. H. Hs XC57 STEERING. BJ9/H24.8.25. We are now considering whether it is desirable to arrange for the front wheels of 'Silver Ghost' cars fitted with… | ||
| Scan341 | Telegram from Hives to Mr. Royce regarding the effects of radius rods on vehicle wobbles. | ||
| View original record | Telegram to: Roycar Derby. Hives Mr Royce interested in Effects of Radius Rods on wobbles if any Day. Recd. from DmB. No. of Telegram 78. | ||
| Scan342 | Test for 'high speed wobble' on an axle with vertical steering pivots. | ||
| View original record | To Hs. from R. c. to CH. BY. PN. X457 R5/M25.8.25. STEERING WOBBLES. X. 457 X. 8430 In the conversation on the telephone yesterday I asked you to test as soon as possible an axle with vertical… | ||
| Scan343 | Letter to the Dunlop Rubber Co. discussing observations on wheel wobble with different tyre types. | ||
| View original record | X457 Hs/Rm3/LG. Messrs. The Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. 25th. Aug. 1925. Dear Sirs, For the attention of Mr. Healey. Development Dept. I thank you for your letter of the… | ||
| Scan344 | High-speed steering wobbles and tests with hydraulic damping. | ||
| View original record | R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. Expl. No. +457 REF Hs/Rm2/LG25. 8.25. EXPERIMENTAL REPORT. To R. from Hs/Rm. c. to CJ. BJ. c. to DA. RG. c. to E. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| Scan345 | The results of tests on high-speed steering wobbles using different tyre pressures and damping. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. -2- Expl. No. REF. Hs/Rm2/LG25. 8. 25. EXPERIMENTAL REPORT. TEST A. We found that without making the steering unduly heavy (8 to 10 lbs. at the steering wheel… | ||
| Scan346 | The amplitude of wheel wobble, comparing balloon tyres with high-pressure tyres. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF: Hs/Rm2/LG25. 8.25 the wobble dies out. We carried out a test with the Chronograph to ascer- tain the respective… | ||
| Scan347 | Vehicle wobble issues with balloon tyres, the use of glycerine as a hydraulic element, and frame stiffening. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -4- Expl. No. REF: Hs/Rm2/LGE5. 8. 25. We are using glycerine as a hydraulic element which will give us a high viscosity and less… | ||
| Scan348 | Dispatch of a wire wheel with cosmetic balancing weights to the sales department for appearance approval. | ||
| View original record | X457 Hs. RHO. BY5/H. 25.8.25. BJ. has asked for a wire wheel to be despatched to Sales, for them to judge the appearance of same after fitting up with the correct bolt and weights for balancing. All… | ||
| Scan349 | Investigation into high-speed steering wobbles, specifically regarding the pivot vertical and radius rods. | ||
| View original record | To Hs. from DA. +457 DA2/M26.8.25. HIGH SPEED STEERING WOBBLES. X.8430 X.457 We believe R. has either spoken or written to you some further suggestions on steering wobbles. It would be of interest to… | ||
| Scan350 | Layout, geometry, and component suggestions for a hydraulic damper on a front axle. | ||
| View original record | To BY. from DA. c. to CJ. Hs. 457 DA3/M26.8.25. HYDRAULIC DAMPER ON FRONT AXLE. E.457 X.8520 X.8420 We send herewith N.sch.2046 shewing the layout of the above damper. The geometry is not entirely… | ||
| Scan351 | Tests to eliminate high-speed steering wobbles using hydraulic damping. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 4457 REF. HS/Rm1/LG27.8.25. To R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| Scan352 | Comparing standard shock absorbers with Houdaille units and testing their effect on wheel and tyre wobble. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Rml/LG27.8.25. shock absorbers is difficult to ascertain without an extended test under all road conditions. From… | ||
| Scan353 | Determining if the synchronization of out-of-balance front wheels affects wobbles. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF: Hs/Rml/LG27. 8.25. in connection with your suggestion that when both front wheels are an equal amount out of balance,… | ||
| Scan354 | Steering alterations, the potential acquisition of a Lancia Lambda for comparison, and high-speed wobble issues. | ||
| View original record | To CJ. from R. c. to BJ. WOF. c. to PN. CWB. c. to Hs. BY. X457 R1/M27.8.25. STEERING, AND CWB. X.8430 X.457 X.4048. The views of CWB. are quite sound, and several of us have already been thinking in… | ||
| Scan355 | Potential modifications to improve vehicle stability, focusing on hydraulic damping, vertical pivot, and front axle weight. | ||
| View original record | Contd :- -2- and possibly we may do some good by the horizontal hydraulic damping of the periods when they do occur. In the meantime we are finding out whether moderate modifications will improve the… | ||
| Scan356 | Tests conducted to produce high speed steering wobbles on an old type axle. | ||
| View original record | To R. from Hs. c.c. to CJ. BJ. c.c. to RG. E. c.c. to DA. BY. c.c. to Wor. 4457 Hs8/LG28. 8. 25. HIGH SPEED STEERING WOBBLES. X457 x8430 We have carried out tests on a car on which the front steering… | ||
| Scan357 | Proposing a visit to West Wittering to demonstrate experiments on steering wobble. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. 7457 Hs5/LG28. 8.25. VISIT TO WEST WITTERING. X1698 We propose to visit WW. next week. Unless we hear that it is inconvenient, we… | ||
| Scan358 | High speed steering wobbles on an Open Trials Car, noting that the wheels were found to be out of balance. | ||
| View original record | To B.J. from Hs. +457 Hs2/LG28. 8.25. STEERING+ +8950 When we had the Open Trials Car at Derby to fit the modified exhaust, we checked the balance of the wheels. We realised that this was the… | ||
| Scan359 | Mr. Royce's disapproval of a scheme for attaching balance weights to wire wheels. | ||
| View original record | To BY. from DA. c. to CJ. Hs. +457 DA3/M29.8.25. BALANCE WEIGHTS ON WIRE WHEELS. X.401 X.457 Mr. Royce did not approve of the scheme for holding on balance weights, of which the pieces were brought… | ||
| Scan360 | High-speed steering wobbles investigating the effects of Michelin wheels and centre-point steering. | ||
| View original record | R.R. 498A (50 H) (D.D. 31. 12-6-25) J.H.D. Expt. No. 4457 REF Hs5/LG29.8.25. EXPERIMENTAL REPORT. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES. 4457… | ||
| Scan361 | Theory of high-speed steering wobble and a proposed apparatus for demonstration. | ||
| View original record | To Hs. from DA. X457 DALQ/29. 8. 25. HIGH SPEED STEERING WOBBLES. X.457 X. 8430 Mr. Royce is anxious to prove if possible that the wobble set up is due to conical precession without torque, or with… | ||
| Scan362 | High-speed steering wobbles, conical precession theory, and the effect of tyre pressures. | ||
| View original record | R.R. 495a (50 H) (D.D. 31, 12-6-25) J.H.D. 4457 EXPERIMENTAL REPORT. Expl. No. REF Hs/Rm2/LG31.8.25. To DA. from Hs/Rm. HIGH SPEED STEERING WOBBLES. c. to R. With reference to your DA1/M24.8.25. and… | ||
| Scan363 | Wheel wobble, conical precession, and the effects of tyre pressure and axle geometry. | ||
| View original record | R.R. 493a (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Rm2/LG31 8. 25. always be the greatest in the immediate vicinity of this one road speed. In practice the period of… | ||
| Scan364 | Confirmatory tests for high-speed steering wobbles on a centre point axle with disc wheels. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No: 4457 REF: Hs/Rm/LG31. 8. 25. To R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING… | ||
| Scan365 | From Hs to B.J. regarding the acquisition and inspection of a steering gauge. | ||
| View original record | TL57 To B.J. from Hs. Hs4/LG31. 8.25. STEERING. F8430 Answering your BJ18/H24. 8.25. We are obtaining this gauge from W.W. We will check it and will afterwards take it up with the makers. Hs. | ||