Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Potential improvements to the steering and front spring arrangement. | ||
| View original record | To HS. DA. RG. E. } FROM R. X8410 S E C R E T. R5/M19.2.24. E. A. C. 11. X8410 X8425 X.9420 X.9410 STEERING AND FRONT SPRING ARRANGEMENT. Re. N.sch.1735. I cannot see anything to alter or improve in… | ||
| scan0002 | Page 2 of a memo concluding the discussion on a suggested modification. | ||
| View original record | contd:- -2- but let us all try the modification we have suggested, which is in hand. R. | ||
| scan0003 | Spring deflection and pivot inclination during front wheel braking experiments. | ||
| View original record | To Hs; from DA. S E C R E T. +8410 DA1/M20.5.24. E.A.C. X.9410 X.8410 X.9940 With reference to your report re. the deflection of the springs under front wheel braking it would be interesting to know… | ||
| scan0004 | Analysis of car springing criticism and proposed solutions for improved ride comfort. | ||
| View original record | 18410 To CJ. from R. c. to BJ. RG. Wor. c. to Hs. DA. E. c. to BY. PN. H. c. to EP. C. SECRET. EAC.11. RE. 46-PK CAR. R1/M12.7.24. X.8770 X.9410 X.8310 This car was criticised here on 11.7.24. by E.… | ||
| scan0005 | Vehicle complaints, focusing on suspension, engine, and brake performance for model 46-PK. | ||
| View original record | contd :- -2- There was cause for complaint, but 90% of it was due to the rear. I cannot suggest any better stiffness for the front springs which I think will be found extremely good. We may however… | ||
| scan0006 | The test drive and comparison of suspension performance on various car models. | ||
| View original record | To CJ. from BJ. Copies to Hs. PN. V8410 PRIVATE. Mr. Hives arrived at Gerrards Cross at 8-a.m., with two standard 40/50 long chassis fitted with touring and limousine bodies. We first tried the… | ||
| scan0007 | Car spring stiffness for French versus British roads and the logistics of demonstration cars. | ||
| View original record | To CJ. from BJ. BJ17/H15.7.24 (Cont'd.) -2- allow the chassis to bump on the axle at very high speed on French roads. Perhaps this was good, because it would indicate to our comers that they must not… | ||
| scan0008 | Unsatisfactory springing issues and testing on car 46-PK. | ||
| View original record | X. 8410 S E C R E T. R4/M/16.7.24. To CJ. from R. c. to BJ. Wor. Hs. E.A.C. RE. 46-PK. X.8410. I agree with most of the comments contained in BJ11/H11.7.24., and will not trouble you with a reply… | ||
| scan0009 | 'nip' and friction measurements for the road springs of a 46-PK open touring car. | ||
| View original record | To R. from Hs. c. to CJ. RG. c. to E. DA. c. to EY. Wor. X8410 Hsl/LG19.8.24. RE. NIP IN ROAD SPRINGS. X.8410 X.2628 We attach herewith two charts showing the amount of friction measured on the road… | ||
| scan0010 | Testing of stiffer springs and the effect of front axle weight on car ride quality. | ||
| View original record | Y8410 X8410 X9990 To B.J. from Hs: Hs8/LG18.7.24. When I arrive in London on Monday morning, I shall bring with me the 12% stiffer springs as suggested by R. We strongly recommend that you concentrate… | ||
| scan0011 | Specification sheet for spring No. F.2441, showing data for a 9-leaf and a 10-leaf variant. | ||
| View original record | SPRING DRAW ON 9-LEAF SPRING No. F.2441. Space between leaves. No.1 and 2 | .725" 2 " 3 | .300" 3 " 4 | .250" 4 " 5 | .275" 5 " 6 | .150" 6 " 7 | .150" 7 " 8 | Nil 8 " 9 | Nil Thickness of spring with… | ||
| scan0012 | Graph and data table showing the deflection test results for an off-side road spring. | ||
| View original record | DEFLECTION TEST OF OFF SIDE ROAD SPRING 46 PK. Y-Axis: DEFLECTION X-Axis: LOAD IN LBS Graph Lines: LOADING UNLOADING Data Table: LOAD IN LBS | DEFLECTION - LOADING OF SPRING | DEFLECTION - UNLOADING… | ||
| scan0013 | Deflection test chart and data table for a near-side road spring, model 46PK. | ||
| View original record | Title: DEFLECTION TEST OF NEAR SIDE ROAD SPRING. 46PK Y-Axis Label: DEFLECTION IN INCHES X-Axis Label: LOAD IN LBS Graph Lines: LOADING, UNLOADING Data Table: LOAD IN LBS | DEFLECTION OF SPRING… | ||
| scan0014 | Design and stiffness of front springs for experimental cars in France. | ||
| View original record | To BY. from R. To HS. c. to CJ. BJ. Wor. PN. EP. H. S E C R E T. +8410 RL/M9.9.24. EAC.11. X. 8410 X. 9410 X. 9941. RE. FRONT SPRINGS FOR EXPERIMENTAL CARS IN FRANCE. You will remember that my… | ||
| scan0015 | Improvements to spring and axle design, including clip quantity, central bolt size, and stiffness. | ||
| View original record | contd : -2- I do not know why we require 4 clips per spring but I think they can do no harm. To lessen the stress on the bump and generally make the spring safer I suggest we increase the thickness of… | ||
| scan0016 | Secret memo discussing issues with Firths' springs and recommending new spring specifications. | ||
| View original record | X8410 To BY. & HS. from R. c.c. to CJ. BJ. PN. Commander Briggs. S E C R E T. R1/M11.9.24. E. A. C. 11 & 111. X. 8410 X. 9410 X. 2628 Springs as made by Firths ought to break because not only is :-… | ||
| scan0017 | Secret memo detailing modifications made to front springs, referencing a new scheme and layout. | ||
| View original record | X8410 To BY. from Da. c. to OJ. Hs. S E C R E T. DA1/M17.9.24. E.A.C.II. FRONT SPRINGS. X.8410. We have modified the number of plates etc. in the front springs to correspond with what has been done on… | ||
| scan0018 | Buffer clearance in relation to fitting stiffer springs, following a suggestion by Mr. Royce. | ||
| View original record | X. 8410 To HS. from DA. S E C R E T. DA3/M8.10.24. E. A. C. 11. BUFFER CLEARANCE. X. 8410. Replying to your HS7/LG6.10.24., the stiffer springs fitted in accordance with Mr. Royce's idea would… | ||
| scan0019 | Results of a check on front springs, with measurements for camber and buffer clearance before and after testing. | ||
| View original record | X8410 To Hs from RHC. RHC5/EU 12. 11. 24. RE 93 NK. We have checked front springs on above car to ascertain why buffer clearance had altered, and find that springs had taken .250 set. Particulars are… | ||
| scan0020 | Authorisation and production of new 45' springs with supplier Messrs Firths. | ||
| View original record | X82410 wd. S. HY/HEB. [Strikethrough] c. Hs. BY/7/H. 5.1.25. E.A.C.II. 45" SPRINGS. --------------------- I am not quite certain whether we ever gave Messrs Firths permission to deal with the 45"… | ||
| scan0021 | Redesign and production of 45-inch springs by the company Firths. | ||
| View original record | By. from Wd. c.c. By/HSB. c. to Hs. X8410 Wd7/NJ26.1.25. EAC.11 - 45" Springs. Referring to yours By7/H5.1.25 and correspondence attached thereto (all of which please return to me), I now send you a… | ||
| scan0022 | Secret memo from BJ to Hs questioning an unauthorized change to the car's rear springing. | ||
| View original record | X8410 SECRET. To Hs. from BJ. E.A.C. R.R. SPRINGING. BJ7/H22.7.24. With reference to R1/M19.7.24, concerning E.A.C. springing, paragraph 5 reads as follows:- "In the car which created the bad… | ||
| scan0023 | Outlining a parts ordering policy for spring modifications on the 'V' series to accommodate a new subframe. | ||
| View original record | X840 Hs. C. RHC. G. Mr. Booth. BY7/H. 17. 2. 25. SPRING MODIFICATIONS TO ENABLE US TO USE A SUBFRAME AT THE LATTER END OF "V" SERIES. I would call your attention specially to the fact that the… | ||
| scan0024 | Performance and potential improvements for Series 'V' front springs. | ||
| View original record | X. 8410 To HS. from DA. S E C R E T. DA3/M3.4.25. SERIES 'V' FRONT SPRINGS. X. 8410 In spite of the result of the 10,000 miles car we presume you are satisfied that the front springs as now instructed… | ||
| scan0025 | Secret memo regarding the unsatisfactory 8,000-mile life of 'V' Series front springs, recommending testing of experimental sets in France. | ||
| View original record | X8410 To DA. from Hs. S E C R E T. Hs2/LG6.4.25. SERIES 'V' FRONT SPRINGS. We are not satisfied with the life of 8,000 miles on front springs, but we do not know how to make them any better. If you… | ||
| scan0026 | Specification sheet for a bumper test on a 'V' series chassis, detailing existing and new parts. | ||
| View original record | To Hs. 48410 Hs/RB/LG7.4.25. BUMPER TEST 'V' SERIES CHASSIS. X8772 X8410 SPECIFICATION. (1) Parts which have already been on test on EAC.11. chassis. Description. Time run. Front axle complete EAC.11.… | ||
| scan0027 | Test report page detailing conditions and a summary of component failures. | ||
| View original record | -2- Front spring rear anchorage EAC.111 to arrgt.drg.F.71016. Front engine support front tube and flange F.72748/9. Front engine support bracket on front X member F.72742/3. Later Dunlop artillery… | ||
| scan0028 | Summary table detailing spring failures with reference numbers, positions, and material properties. | ||
| View original record | -3- SUMMARY OF SPRING FAILURES. Ref. No. | Running time. | Position on chassis. | Position of leaf. | Position of fracture. | Compression. | Rebound. | Thickness. | Brinell. | Type.… | ||
| scan0029 | Notes on durability testing of various vehicle components including wheels, suspension, brackets and stays. | ||
| View original record | -4- NOTES. During this test the Dunlop artillery wheels ran as follows :- No.1. 101 hrs. 35 mins. No.2. 72 hrs. 15 mins. No.3. 38 hrs. All proved to be in excellent condition at the conclusion of the… | ||
| scan0030 | Wheel and frame component performance, detailing failures in springs and cross members. | ||
| View original record | -5- three springs were broken Dunlop artillery wheels replaced the standard wire wheels. These weigh 58½ lbs. without tyres against 43½ lbs. of the wire wheels, an increase of 15 lbs. on each wheel.… | ||
| scan0031 | Potential chassis improvements for a future car, including issues with exhaust, overheating, suspension, and steering. | ||
| View original record | X8410 R8/H/15.4.25. To E. & DA. from R. To AJS. c. to HS; BY. FUTURE CAR WORK. 766 X.8770 3430 X.5770 8230 X.8410 Please contradict if incorrect. When you get time please make studies for chassis… | ||
| scan0032 | Front spring life after a 10,000-mile test on a 'V' series car in France. | ||
| View original record | To C.J. from Hs. X8410 Hsl/LG13.5.25. 10,000 MILES TEST ON EAC. 'V' SERIES CAR IN FRANCE. X8940 [struck through]X8410[/struck through] With reference to the attached daily report from France dated… | ||
| scan0033 | Copy of a telegram with instructions for modifying front springs for the India market. | ||
| View original record | Hs410 Copy for Hs. Telegram received from R. 15.5.25. by BY. BAILEY ROYCAR DERBY INSTRUCT INDIA FRONT SPRING POINT FIVE CAMBER ALSO A SET TWENTY FIVE PER CENT STIFFER THAN STANDARD GCSHAWK THAT IS… | ||
| scan0034 | The effects of 'Normal' and 'Loaded' conditions on a 'V' series car's suspension and clearance. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. X8410 EXPERIMENTAL REPORT. Expl. No. REF: Hs3/LG16.5.25. To BJ. from Hs. 'V' SERIES EAC. 'NORMAL' AND 'LOADED' CAR. X8770 X8840 X8410 Referring to… | ||
| scan0035 | Comparing the steering system of a Hispano car with in-house designs and discussing potential improvements. | ||
| View original record | To Hs. from R. c. to CJ. BJ. c. to Wor. LHS. c. to BY. EP. c. to PN. CWB. ts410 R2/ M29.6.25. STEERING. X.8430 X.4214 X.8410 With reference to the steering it has always been thought that our steering… | ||
| scan0036 | Advancements and considerations for steering systems and wheel dynamics. | ||
| View original record | contd :- -2- Some schemes have advantages in one direction, other schemes have advantages in other directions. In EAC.7. we shall have considerable change by fitting our unique system of damped… | ||
| scan0037 | Requesting the detailed measurement and analysis of springs from an American car, comparing them to existing designs. | ||
| View original record | To Hs. from DA. SPRINGS ON AMERICAN CAR. X.3900 X.8410 We should very much like to take one of these springs off the chassis, take it to pieces, and thoroughly measure it up as regards the thickness… | ||
| scan0038 | Lubrication issue with the rear anchorage of the front springs on Mr. Royce's 'V' Series car. | ||
| View original record | X. 3410 To BY. from DA. c. to CJ. Hs. DA3/M21.7.25. 'V' SERIES - REAR ANCHORAGE OF FRONT SPRINGS. In lubricating Mr. Royce's car down here the oil from the gun appeared to ooze outside the anchorage… | ||
| scan0039 | Implementation of a new scheme for oiling a shackle pin in an anchor bracket for a 40/50 HP model. | ||
| View original record | X8410 BY/HEB c. Hs. c. Da. BY19/H. 7.8.25. RECEIVED OILING OF SHACKLE PIN IN ANCHOR BRACKET. FOR 40/50 HP. I am handing you herewith N.Scheme 2040 which kindly detail and issue experimentally only. If… | ||
| scan0040 | Issues with the front springs for the Phantom and 20 HP models, suggesting potential improvements and comparisons. | ||
| View original record | To Hs. from DA. c. to CJ. c. to BY. 410 DA4/M23.9.25. FRONT SPRINGS. X.5410 X.3803 X.8410 X.3900 Referring to the front springs for both the Phantom and the 20 HP. and to the possibility of improving… | ||
| scan0041 | Investigating high-speed steering wobbles by modifying leaf springs. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. X8410 REF :Hs/Rm3/L0231025 To R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. EY. e. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| scan0042 | Bumper test for front springs on a Phantom chassis. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. +8410 Expl. No. REF:Hs2/L024.11.25. To R. from Hs. c. to CJ. BJ. c. to RG. W. c. to DA. EY. c. to Wor. BUMPER TEST ON FRONT SPRINGS ON… | ||
| scan0043 | Time comparison memo for a process with and without interleaving material. | ||
| View original record | contd :- -2- With interleaving. Standard. 13.45 hrs. 15.50 hrs. 18.25 " 11.50 " 21.40 " 20.00 " 10.50 " 12.25 " 13.00 " 17.10 " 13.20 " 13.45 " =============== Sample of material is attached to R's… | ||
| scan0044 | Inconsistent results from bumper tests of front springs for the 'New Phantom' chassis. | ||
| View original record | By. from Wd. X8410 Wd10/NJ17.12.25. 40/50 HP. Chassis - "NEW PHANTOM". Bumper Test of Front Springs. Towards the end of last month you handed to me for perusal a note Hs2/LG24.11.25 giving results of… | ||
| scan0045 | Letter from supplier Thos. Firth & Sons Ltd. regarding variability in test results for 40/50 HP front springs. | ||
| View original record | Copy of letter received from:- Messrs. Thos. Firth & Sons Ltd., Norfolk Works, Savile Street East, SHEFFIELD. 16th. Dec. 1925. Ref:- Wd5/NJ271125. STEEL DEPARTMENT: JWF/AC. Messrs. Rolls-Royce… | ||
| scan0046 | Inquiry from the Experimental Department about customer complaints regarding vehicle springing. | ||
| View original record | To F.N. From Hs. c. to CWB. Ep to DM. X8410 Hs5/LG21.12.25. SPRINGING. ---------- The Experimental Dept. would like information on the following points :- (1) Complaints of springing reported in… | ||
| scan0047 | Internal memorandum responding to two questions regarding vehicle springing. | ||
| View original record | S. to W. HS. from H. X8410 H4/ED/22.12.25. Re: SPRINGING. Replying to your HS5/IG.21.12.25, the following are answers to your questions:- (1) Is 100% too stiff. [The word 'Is' is struck through] (2)… | ||
| scan0048 | Issues and calculations related to vehicle rear springing. | ||
| View original record | X8410 B.J. C. OWB. C. H?. C. Hs. BYll/H. 31.12.25. ***************** REAR SPRINGING. *************** Referring to BJS/H.17.12.25. and CWB1/EP.11.12.251 I regret delay in replying, but have had a great… | ||
| scan0049 | Analysis of spring stress, safety margins, and potential for breakage in different vehicle models. | ||
| View original record | - 2 - That this is so may not be obvious, but it would certainly happen, and the range of stress would be increased to somewhere in the neighbourhood of 15%. This means we would increase our stress… | ||
| scan0050 | Comparison of chassis and suspension characteristics between the 40/50 HP and 20 HP models, focusing on the causes of roughness. | ||
| View original record | - 3 - BYLL/H. 31.12.25. From the foregoing it should now be amply clear that the problem is a very involved issue, and not one to be treated like the knot of Greek mythology. I am not trying to… | ||
| scan0051 | Issues and variations with the rear springing of the New Phantom 40/50 HP model. | ||
| View original record | To BJ. from CWB. c.c. to FN. c. to H. c. to HS. c. to BY. X8440 W/HS. re:- NEW PHANTOM - 40/50 HP. Rear Springing. Referring to BY11/H31.12.25 and dealing with the paragraphs of that memo seriatim. 1.… | ||
| scan0052 | Car spring performance, loading, and ride quality for various models. | ||
| View original record | - 2 - CWB1/EP/5.1.26. contd. 5. Contd. and is demanding very much lighter rear springs. I would very much like to know how the proposed new springs for his car compare with those at present, or just… | ||
| scan0053 | Guidelines on calculating vehicle load based on car type, seating, and luggage. | ||
| View original record | - 3 - CWB1/EP/5.1.26 contd. 7. Contd. for each type of car, thus the load in the case of a Limousine, Enclosed-drive, might be two in front and two behind. In the case of a Landaulet one in front and… | ||
| scan0054 | Phantom model springing, discussing stiffness, rating calculations, and manufacturing limits. | ||
| View original record | +8410 BMR GWB. C. Hs. M. BY2/H. 6.1.26. **************** PHANTOM SPRINGING. ***************** Further to BY11/H.31.12.25. and in reply to CWBL/EP.5.1.26, dealing with paragraphs by number, our remarks… | ||
| scan0055 | Classification of springs based on poundage tolerances and defending departmental practices. | ||
| View original record | - 2 - BY2/H. 6.1.26. --------------- These terms are explained and controlled by a chart in the hands of the Works, and the above means:- We divide springs at any point of poundage into:- 2000 lbs.… | ||
| scan0056 | Car springing, periodicity calculations, and passenger comfort for different car models. | ||
| View original record | - 3 - 5. In regard to 11-EX. the springing of this car was in no sense special. It was passed through our springing Dept. and springs called for in the ordinary way, based on our usual formula. The… | ||
| scan0057 | Design challenges of leaf springs to accommodate a wide variety of customer loads and body types. | ||
| View original record | - 4 - comparison showing that to step down on the range like CWB. suggested, we should necessarily put up the stress in the thin leaf spring of the present type and range to approximately the… | ||
| scan0058 | Vehicle performance issues under full load and incorrect weight estimates. | ||
| View original record | - 5 - BY4/H. 6.1.26. ---------- on such rare occasions which occurred when the full load was necessary. To avoid bumping, it would mean that the car would have to be driven somewhat slower. This is a… | ||
| scan0059 | Steering wobble and springing issues, with differing opinions, on the 11-EX car. | ||
| View original record | To PN. from Hs. +8410 Hs2/LG19.1.26. 11-EX CAR. +8900 With reference to PN2/DN5.1.26. We are surprised that you experienced a steering wobble on 11-EX car at 76 m.p.h. When this car was at the Works… | ||
| scan0060 | Confirming the correct weight ratings for the rear springs on an Experimental Phantom Car. | ||
| View original record | To Hs/Rm. X84HO BY/HEB15/M.22.1.26. PHANTOM SPRINGING. In reply to your memo' Hs/Rm1/LG22.1.26, stating that you estimate that the correct Rear Springs for the Experimental Car in question, are:- 2000… | ||
| scan0061 | Replacement and comparison of rear springing for various car models. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to PN. CWB. c. to OY. X8410 X8840 X52410 Hs2/LG22.1.26. SPRINGING. We have sent by rail addressed to you at Le Canadel a 1600 lbs. rear… | ||
| scan0062 | Comparison of springing issues and customer complaints between the 40/50 HP and 20 HP models. | ||
| View original record | contd :- -2- is 92 to 96 oscillations per minute. On the 40/50 HP. it is 72 to 75 oscillations per minute. In spite of the fact that the 40/50 is sprung relatively lighter than the 20 HP., the… | ||
| scan0063 | Analysis of car frame flexibility and its effect on passenger comfort, proposing further testing. | ||
| View original record | contd :- -3- In the case of your own car at Le Canadel, we have wondered whether some of the discomfort is due to the flexibility of the over-hung portion at the rear of the frame. The fact that we… | ||
| scan0064 | Typed memorandum page discussing car suspension, criticising it as the worst feature and comparing it unfavourably to the Lancia Lambda's. | ||
| View original record | contd :- -4- either the semi-eliptic or cantilever springs, or the movement of the frame. My own impression is that the springing is now the worst feature on our cars. We consider the front springing… | ||
| scan0065 | Comparison of springing peculiarities between the 20 HP and 40/50 HP models. | ||
| View original record | Hs/Rm/LG22.1.26. ------------------- 20 HP. AND 40/50 HP. SPRINGING. The following peculiarities are observed :- VARIABLE LOAD. On the 20 HP. half the weight of the passengers is sprung. On the 40/50… | ||
| scan0066 | Spare wheel weights, weight distribution, and front spring modifications for specific models and export markets. | ||
| View original record | -2- a spare wheel is assumed to have its weight distributed 65% front and 33% rear. On the 20 HP. however, its weight is assumed to be 100% on the front when carried on the step. ABROAD. The 40/50 HP.… | ||
| scan0067 | Calculation sheet for spring loads on a 7-EX Phantom car scheduled for running in France. | ||
| View original record | 7-EX - PHANTOM CAR. SPRINGS REQUIRED IF SPRUNG ACCORDING TO SCHEDULE FOR RUNNING IN FRANCE. SPRINGS. FIXED CHASSIS LOADS. FRONT. REAR. (As per chart). Near. Off. Near. Off. Spares, wheels etc. 896 946… | ||
| scan0068 | Comparison of rear spring deflection and buffer clearance between the 20 HP and 40/50 HP models. | ||
| View original record | Hs/Rm/LG22.1.26. SPRINGING. The 20 HP. car rear springs under full load have a deflection of 5.125". This leaves the spring with a flat camber. The 40/50 HP. car rear springs under full load have a… | ||
| scan0069 | Springing specifications and load calculations for the New Phantom and 20 HP models. | ||
| View original record | NEW PHANTOM SPRINGING FIXED LOADS CHASSIS WT 4000 LBS UNSPRUNG WT FRONT. AXLE WHEELS & TOTAL WT. OF THE SPRINGS. TOTAL WT. 460 LBS. REAR. AXLE WHEELS & NONE OF THE WT. OF THE SPRINGS. TOTAL WT. 610… | ||
| scan0070 | Seeking confirmation on rear spring specifications for an experimental Phantom car. | ||
| View original record | To EY/HEB. from Hs/Rm. 78410 Hs/Rm1/LG22.1.26. PHANTOM SPRINGING. We have an Experimental car running :- Weight of body 11 cwts. 4 passengers. 100 lbs. of luggage on the grid. 2 spare wheels. This car… | ||
| scan0071 | Comparing the suspension characteristics of the New Phantom and 20 HP R-R with the 20 HP Lanchester. | ||
| View original record | To CJ. from DA. GEOFFREY SUMMERS - 117-MC. DAL/M27.1.26. X.4117 X.441 X.8410 X.5410 Replying to CJ2/D25.1.26. all the illustrations and drawings we have here shew the springs on the 20 HP. Lanchester… | ||
| scan0072 | Technical comparison of suspension characteristics between the New Phantom and the 20 HP R-R models. | ||
| View original record | contd :- -2- NEW PHANTOM. 20 HP. R-R (4) Equally well damped as regards the friction in the springs alone, so that the RR. is better damped by the effect of the shock dampers. | Rather less well… | ||
| scan0073 | The performance of rear springing and tyres on the 7-EX car, with suggestions for improvements using semi-balloon tyres and hydraulic shock dampers. | ||
| View original record | Hs. To BY. } FROM R. DA. } LE CANADEL. c. to CJ. BJ. RG. Y8410 RL/M4. 2.26. RE. REAR SPRINGING - TYRES. X.8410 X.457 X.8992 X.8820 X.4117 X.235 7-EX R&R's CAR AT LE CANADEL. I find the springing on… | ||
| scan0074 | Broken rear road springs on the 8-EX car following endurance testing. | ||
| View original record | Expl: Report. Expl: No. +8410 Ref. Hs/GWH/LG11.2.26. To R. from Hs/GWH. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. REAR ROAD SPRINGS ON 8-EX. +8940a The rear springs on 8-EX car have broken… | ||
| scan0075 | Requesting the poundage of springs for Mr. G.R.N. Minchin's car and the London Trials cars. | ||
| View original record | To Mr. MacMillan T.D. from Hs/Rm. X8410 X417 Hs/Rm2/LG18.2.26. Will you please give us the poundage of the springs fitted to Mr. G.R.N.Minchin's car and also those at present fitted to the London… | ||
| scan0076 | Correspondence between the UK and US offices regarding contradictory test results on Phantom springing and requesting instrument details. | ||
| View original record | 78410 Expl: Office, Messrs. Rolls-Royce Ltd., Derby, England. Rolls-Royce (America) Inc., Springfield, Mass., U.S.A. 23rd. Feb. 1926. Hs2/LG23.2.26. CY. from Hs. PHANTOM SPRINGING. 78410 75410 We wish… | ||
| scan0077 | Suspension characteristics, road shocks, and springing complaints on various car models. | ||
| View original record | contd -2- whereas it is only necessary for a passengers to ride a few yards on the floor to realise that without the cushion any car is absolutely impossible. We are now running a Phantom car fitted… | ||
| scan0078 | Springing arrangements for the New Phantom chassis. | ||
| View original record | 48410 F.H. CWD. E.W.H. C. HS. BYS/H. 24.2.26. NEW PHANTOM SPRINGING. ******************** Referring to CJE/E.18.2.26, we have for some weeks past been arranging lighter springs on chassis than are… | ||
| scan0079 | Rear spring breakages and suspension damping characteristics, referencing specific models and a complaint from Mr. Rudyard Kipling. | ||
| View original record | - 2 - BYS/H. 24.2.26. ----------------- breakages and then other matters will become less important again. Whilst we have only very occasional breakages of rear springs, we do still get broken springs… | ||
| scan0080 | Improvements to the Phantom's suspension, focusing on springs, shock absorbers, and tyre pressure. | ||
| View original record | To BY. } FROM R. Hs. } LE CANADEL. c. to CJ. Wor. c. to RG. E. x8440 R2/M25.2.26. PHANTOM SUSPENSION. X.8410 x.4565 X.8520 x.235 Mr. Johnson remarks that the Phantom rides worse than the Silver Ghost.… | ||
| scan0081 | Technical memo comparing vehicle ride quality, noise, and performance, referencing the Silver Ghost and New Phantom models. | ||
| View original record | contd :- -2- but bad management of rear road spring stiffness and highly pumped tyres will ruin all, and spoil everything that can be done. Body noises of all kinds are reduced and the life of bodies… | ||
| scan0082 | The testing of special Woodhead front road springs with four rebound leaves. | ||
| View original record | Expl: Report. Expl: No. X840 Ref. Hs2/LG25.2.26. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. FRONT ROAD SPRINGS. X2628 We have been testing some of the special Woodhead springs… | ||
| scan0083 | Outlining the principles for calculating vehicle springing based on specified body, passenger, and luggage weights. | ||
| View original record | x8410 BY5/H. 3.3.26. ----- Cpy. Bs. c. Hs. Hewer. ----- Referring to R2/M. 25.2.26. as a result of the fact that we found that generally body weights, passenger weights, and luggage, were being… | ||
| scan0084 | Tyre pressures, a chassis complaint, and coordination with the Dunlop Company on wheel and tyre types. | ||
| View original record | - 2 - it is more likely to be on the basis of the complaint that the chassis touches the buffers too often. With reference to tyre pressures, I have been discussing this matter with the Dunlop Company… | ||
| scan0085 | Complaints about the 'New Phantom' suspension and the examination of a 'Silver Ghost' car for comparison. | ||
| View original record | Y8410 Tr2/DN4.3.26. S/W - Hs FROM Tr CWB "New Phantom" Suspension. CJ is most concerned regarding a number of complaints we are receiving of the poor suspension of our "New Phantom". He has issued the… | ||
| scan0086 | The inspection of springing on chassis 4-YG and an urgent request for its return. | ||
| View original record | S/W. Hs. [Handwritten]: X8410 Hrl/PD/4-3-26. Re: Chassis 4-YG. [Handwritten above: X8410] [Handwritten below and crossed out: X8950] On CJ's instructions we sent 4-YG up to you to-day for you to… | ||
| scan0087 | The poundage of rear springs for the Phantom car and confirming a new springing method on specific models. | ||
| View original record | To BY/HEB. from Hs/Rm. X8410 Hs/Rm1/EG5.3.26. PHANTOM SPRINGING. With reference to the present alteration in the method of springing the Phantom car. Would you please give us the poundage of the rear… | ||
| scan0088 | Poundage of rear springs for 'Phantom' models based on body and load weight. | ||
| View original record | To Hg/Rm. X84W BY/HEB4/M.5.3.26. "PHANTOM" SPRINGING. In reply to your memo' Hs/Rm1/LG5.3.26, kindly note the following gives the information you required:- "Poundage of the Rear Springs, suitable for… | ||
| scan0089 | Request for particulars of the springs fitted to the London demonstration car 4-YG, which has been sent for testing. | ||
| View original record | To BY. from Hs/Rm. X8410 Hs/Rm1/LG8.3.26. SPRINGING. X8950 The London demonstration car 4-YG has been sent up to us to carry out tests on the springing. Will you please let us have particulars of the… | ||
| scan0090 | Letter concerning the investigation of the unusually good suspension on chassis 4-YG, which is for sale. | ||
| View original record | S/W. 9/3/26 #5 X8410 Cx2/LR/8. 3. 26. Re - Chassis 4-YG. This car has been returned to you in order that you may investigate the excellence of the suspension. I would just like to mention that we are… | ||
| scan0091 | Tests conducted on Phantom springing, detailing how front shock absorber stiffness affects rear seat comfort. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. x8410 Hs4/LG10.3.26. PHANTOM SPRINGING. x8520 The recent tests made on springing have shewn that the riding comfort in the back seats… | ||
| scan0092 | Suspension tests and improvements on the 4-YG car compared to the 40/50 HP model. | ||
| View original record | To BJ. } To CWB. } from Hs/Rm. X8410 Hs/Rm2/LG15.3.26. 4-YG CAR. X8410 X8950 The above car was sent to Derby as an example of a well-sprung car. We have carried out a number of tests comparing the… | ||
| scan0093 | Rear springs, shock dampers, and tyres for the Phantom model. | ||
| View original record | To Hs. BY. Da. } FROM R. LE CANADEL. c. to CJ. BJ. LHS. c. to PN. EP. CWB. Wor. Y8410 R2/M15.3.26. PHANTOM - RE. ROAD SHOCKS. X. 8410 X. 8820 X. 8520 X. 8830 REAR SPRINGS. X. 8410 I do not think we… | ||
| scan0094 | Improvements to vehicle ride quality through adjustments to tyres, suspension, and cushions. | ||
| View original record | contd :- -2- very tight indeed. So, to me the quicker we realise that we must supply something different, the better. I am definitely of the opinion that in my experience where the cars are, all… | ||
| scan0095 | Comparing special Woodhead front road springs with conventional ones, discussing rebound leaves and internal friction. | ||
| View original record | To Hs. from DA. X8410 DA1/M16.3.26. FRONT ROAD SPRINGS. X.8410 X.3854 With reference to your Hs2/LG25.2.26. referring to tests on some special Woodhead springs fitted with rebound leaves, on looking… | ||
| scan0096 | Complaint about the Phantom's ride comfort and springing compared to the Silver Ghost. | ||
| View original record | Hs. ) To DA. ) FROM R. BY. ) LE CANADEL. c. to CJ. E. RG. X8410 R1/M1 18.3.26. RE. PHANTOM - RE. SPRINGING AND X.8410 COMFORT OF THE REAR SEATS. X.5410 I understand that the complaint is that the… | ||
| scan0097 | Technical memorandum discussing improvements to vehicle suspension, including shock dampers, tyres, and springs. | ||
| View original record | Contd :- -2- since the Phantom appeared) to make the engine and front of the chassis lighter: (this is in hand and should be hurried up). (4) Use hydraulic shock dampers all round. (5) Use… | ||
| scan0098 | Unsatisfactory riding in the rear seats of a Phantom car, detailing test results and potential solutions. | ||
| View original record | To Hs. To BY. To DA. } FROM R. AT LE CANADEL. X8410 R3/M19.3.26. PHANTOM. X.8410 UNSATISFACTORY RIDING IN REAR X.235 X.8820 SEATS. Yesterday I wrote a long memo. on the above subject: today (14.3.26)… | ||
| scan0099 | Phantom suspension, comparing balance and spring ratings with the Silver Ghost and 20 HP chassis. | ||
| View original record | To Hs. from DA. 48410 DA4/M9.3.26. PHANTOM SUSPENSION. X. 8410 X. 5410 X. 8840 We have had a long note from R. about this, of which you will get your copy in due course. He appears to have gone… | ||
| scan0100 | Resuming an investigation into the springing differences between the 20 HP and New Phantom chassis. | ||
| View original record | X. 8410 To R. from DA. c. to. CJ. Hs. DA5/M19.3.26. PHANTOM SPRINGING. We had begun to investigate the relative disposition of the weights, centre of gravity, relative stiffness of the front and rear… | ||
| scan0101 | List of proposed suspension experiments for various car models. | ||
| View original record | X8410 SUSPENSION EXPERIMENTS. (1) Try an old Silver Ghost (3½ front springs) (2) Try the New Phantom we tried yesterday with rear but not front shock dampers. (3) Disregarding the spring schedules -… | ||
| scan0102 | Springing characteristics and weight disposition on the Phantom model. | ||
| View original record | X. 3410 To Hs. from DA. DA8/M20.3.26. PHANTOM SPRINGING. We have gone a little further into the question of the disposition of the weights on the Phantom with reference to the spring stiffness… | ||
| scan0103 | Internal memorandum addressing complaints about the springing on the Phantom model. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to OY. Wor. 48410 Hs2/LG22.3.26. PHANTOM SPRINGING COMPLAINTS. 48410 X5410 We agree that the only way we can arrive at any improvement on the… | ||
| scan0104 | Results of tyre pressure tests on Phantom and Silver Ghost models in relation to riding complaints. | ||
| View original record | Contd :- -2- We have carried out tests with several kinds of tyre and tyre pressures. We have tried balloon, semi balloon, medium pressure and high pressure tyres. We have tried ranges of tyre… | ||
| scan0105 | Tyre and wheel combinations, weighing the benefits of low-pressure tyres for comfort against issues like skidding and wobbles. | ||
| View original record | To Hs. DA. BY. FROM R. LE CANADEL. c. to CJ. BJ. c. to E. RG. Handwritten: X.8410 RL/M24.3.26. PHANTOM & INDIA TYRES - re. X.4565 X.8820 Hs/Rm/15.3.26. X.3809 X.5820 X.8410 I have said previously that… | ||
| scan0106 | Investigation into vehicle jolting, suspension, and different tyre pressures. | ||
| View original record | HS X8440 To R. from CJ. Copy to HS. Copy to DA. Copy to BY. Copy to F. Copy to Rg. Re Tyres. CJ2/E25/5/26 This morning I received a copy of your confidential memorandum, R1/M24/5/26, concerning tyres.… | ||
| scan0107 | Tyre and suspension choices for the 40/50 and 20 HP models to prevent wheel wobble. | ||
| View original record | To R. from CJ. CJ2/E25/3/26 - 2 - or balloons on the back wheels of the 20. As regards the front wheels of the 40/50, Hs.'s recommendation is that on no consideration should these be fitted until we… | ||
| scan0108 | Risks of departing from established procedures, mentioning car wobbles, spring clearance, and low-pressure tyre issues. | ||
| View original record | To R. from CJ. CJ2/E25/3/26 - 3 - For us to depart from this well-established procedure would at once set people asking why we were doing so and our competitors would very quickly put it about that… | ||
| scan0109 | Tyres and the impact of road conditions on motor travel near Le Canadel. | ||
| View original record | [Handwritten]: #S [Handwritten stamp, crossed out]: VOLETTO To R. from CJ. Copy to Hs. Copy to DA. Copy to BY. Copy to E. Copy to RE. re Tyres. CJ18/E25/3/26 In continuation of my memorandum of this… | ||
| scan0110 | Outlining a series of experiments to investigate and resolve Phantom suspension complaints. | ||
| View original record | To R. from DA. c, to Hs. X8410 DA2/M26.3.26. PHANTOM SUSPENSION COMPLAINTS+ X. 8410 X. 9410 X. 8520 In another memo. we have given the results of the demonstration in Derby to arrive at an exact idea… | ||
| scan0111 | Springing demonstration to diagnose a small amplitude vibration issue on the Phantom model. | ||
| View original record | To R. from DA. c. to CJ. CWB. Hs. c. to EP. E. X 8410 DAL/M26.3.26. PHANTOM SUSPENSION. X.8410 X.2628 X.8520 In accordance with your instructions Mr. Hardy and I went to Derby and attended a springing… | ||
| scan0112 | Test results on vehicle ride comfort, comparing different tyres, shock dampers, and car models. | ||
| View original record | contd :- -2- (5) Coupling up the rear shock dampers in addition increased the complaint, being now about the same as (1). (6) By fitting balloon tyres (20/25 lbs/sq.in.) the riding of the car was… | ||
| scan0113 | Suggesting a test to diagnose a vibration complaint on a Phantom suspension. | ||
| View original record | To Hs. from DA. X. 8410 DA3/M27.3.26. RE. PHANTOM SUSPENSION. It is suggested that the complaint may be forced vibration from the road only, and the periodicity may be that of the irregularities of… | ||
| scan0114 | Car suspension, tyres, and shock dampers to correct misunderstandings from a previous memo. | ||
| View original record | To Hs. FROM R. DA. LE CANADEL. BY. c. to CJ. BJ. Wor. c. to E. RG. PN. c. to OY. NA. CWB. X8410 R1/M31.3.264 SUSPENSION AND TYRES OF RR. CARS. X. 8410 X. 5520 X. 8820 X. 235 X. 8430 X. 5410 My last… | ||
| scan0115 | Vehicle suspension, shock dampers, and tyre performance for the 20 HP and 40/50 models. | ||
| View original record | contd :- -2- (c) Such shock dampers as we tried to fit to the 20 HP. i.e. progressively increasing, small movement with no damping, and larger movement with increased effect. (6) One wonders whether… | ||
| scan0116 | Vehicle steering, tyre pressures, and suspension improvements including shock dampers and springs. | ||
| View original record | contd :- -3- set and equal each way). (c) All the ball joints in the steering gear - i.e. 3 or 4 could have lignum vitae pads spring loaded so as to create friction (consistently) and be independent… | ||
| scan0117 | Requesting views on a proposal about springing for submission to the Sales Conference. | ||
| View original record | S/W [Strikethrough] -> Hs. X8440 Cll/Cl.4.26. Re Springing. ---------- We propose submitting the attached to the Sales Conference at the next meeting, but in the meantime we would like to have your… | ||
| scan0118 | Proposal for a standard formula for vehicle springing arrangements. | ||
| View original record | For Sales Conference. --- Re SPRINGING. --- It was suggested by CWB.,Sg.,and C. that we should suggest to Derby, and if they see no objection adopt as standard, the following formula:- In respect of… | ||
| scan0119 | Table listing various car body styles and their passenger seating capacities. | ||
| View original record | TYPE OF BODY PASSENGERS FRONT REAR TOTAL. Open Touring 4-5 seater 2 1 3 Open Touring 6-7 seater 2 2 4 Landaulet Open Front 1 2 3 Limousine Open Front 1 2 3 Enclosed Landaulet 2 2 4 Enclosed Limousine… | ||
| scan0120 | Request to Messrs. Woodhead to manufacture a pair of front springs to a specific experimental specification. | ||
| View original record | To Wd. from Hs/Rm. X8410 Hs/Rml/LGS. 4. 26. WOODHEAD SPRINGS. X3854 Will you please ask Messrs. Woodhead to make for us a pair of front springs to the following specification :- Initial camber 4.65"… | ||
| scan0121 | Confirming points for further suspension experiments on the 20 HP, Phantom, and Silver Ghost models. | ||
| View original record | To Hs. from DA. X8410 DA3/M10.4.26. SUSPENSION EXPERIMENTS X.8410 X.9410 X.5410 X.235 This is to confirm one or two points on which it was intended to make further experiments :- (1) To find out… | ||
| scan0122 | Technical memorandum discussing issues with the front springing of the Phantom model compared to the Silver Ghost standard. | ||
| View original record | To DA. BY. Hs. from R. LE CANADEL. c. to BJ. RG. OY. CWB. c. to E. EP. PN. Y8410 R2/M11.4.26. RE. PHANTOM SPRINGING. X.8410 X.235 Mr. Olley says Phantom front springing is considerably stiffer than… | ||
| scan0123 | Continued discussion on vehicle design, focusing on center of gravity, spring damping, and tyre performance. | ||
| View original record | contd :- -2- A car with the centre of gravity near the back axle, say by removing engine and radiator, and comparison with 20 HP. might prove or condemn this centre of gravity suggestion. Another… | ||
| scan0124 | List of modifications to be carried out on car 44-PK, including fitting a new axle, springs, and shock absorbers. | ||
| View original record | X8410 RHC. from Hs/Rm. Hs/Rm2/LG13.4.26. 44-PK CAR. X8770 Will you please carry out the following modifications to this car :- 1. Fit standard 40/50 pre front wheel brake axle to the car. 2. Fit… | ||
| scan0125 | Suspension test results, comparing the ride quality of a pre 'U' series Silver Ghost with the New Phantom. | ||
| View original record | To Hs. from DA. X8410 DA1/M13.4.26. RE: SUSPENSION. X.3900 X.9410 X.8410 X.2623 Referring to Mr. Nadin's note of the 9th.inst., re. the suspension tests in Derby, I am not entirely in agreement with… | ||
| scan0126 | Copy of a telegram from R. Lecanadel regarding modifications to the Phantom's springing and brakes. | ||
| View original record | COPY OF TELEGRAM RECEIVED FROM R. LECANADEL. 13. 4. 26. X8410 X. 8410 X. 235 ROYCAR DERBY ENGLAND. BAILEY HIVES NADIN PHANTOM SPRINGING NOTHING SIMPLER THAN REDUCE FRONT SPRINGS TO ORIGINAL STIFFNESS… | ||
| scan0127 | Technical memorandum discussing the springing, shock dampers, and ride quality of the Phantom model. | ||
| View original record | To NA. DA. ) FROM R. Hs. BY. ) LE CANADEL. c. to BJ. Wor. ON. EP. CWB. X8410 RL/M14.4.26. RE. PHANTOM SPRINGING. X.8410 X.4429 X.235 I am not sure that we are adding this up correctly :- (1) I have… | ||
| scan0128 | Axle control, radius rod fittings, road clearance, and comparing front axle designs with other car manufacturers. | ||
| View original record | contd :- -2- from more and thinner plates, or of greater length, and fit the best axle control we can. The only good and passable one is that with radius rod under spring. I endeavoured to arrange… | ||
| scan0129 | Advantages and disadvantages of potential suspension modifications. | ||
| View original record | To CWB. from Hs/Rm. X8410 Hs/Rml/LG14.4.26. R-R SUSPENSION. X832 With reference to CWB4/GMR.3.4.26. We do not think it would be worth while obtaining a set of the device you mention because we can see… | ||
| scan0130 | Telegram discussing Phantom suspension settings, including springing percentages, hydraulic dampers and tyres. | ||
| View original record | POST OFFICE TELEGRAPHS B or C Charges to pay s. d. This form, and if possible the envelope, should accompany any enquiry respecting this Telegram. RECEIVED At...........M From......... By.............… | ||
| scan0131 | Telegram discussing decisions on model testing, including changes to the centre of gravity, axle control, and chassis. | ||
| View original record | B or C. Charges to pay s. d. This form, and if possible the envelope, should accompany any enquiry respecting this Telegram. RECEIVED At...M From... By... 2 Royce Derby another. POST OFFICE… | ||
| scan0132 | Tests conducted on the Phantom's suspension to investigate complaints of jolting and the effect of spring stiffness. | ||
| View original record | +8410 To R. from Hs. c.c. to BJ. RG. c.c. to DA. E. c.c. to BY. Na. c.c. to CWB. Wor. Hsl/LG15.4.26. PHANTOM SUSPENSION. XZ68 With reference to your telegram instructing us to test the original pre… | ||
| scan0133 | The effect of fitting front-wheel brakes on the springing of Phantom and Silver Ghost models. | ||
| View original record | contd :- -2- Phantom is in any way different as regards springing to the Silver Ghost when fitted with 4-wheel brakes. (2) We do not believe the difference between the Silver Ghost with front wheel… | ||
| scan0134 | Springing complaints and riding comfort, comparing the Silver Ghost, Phantom, 20 HP, and 40/50 HP models. | ||
| View original record | contd :- -3- We went through phases of very bitter complaints on the old Silver Ghost, hence the changes to thick leaf springs and split bottom leaf springs, and back to thin leaf springs. We hold the… | ||
| scan0135 | The difficulties of evaluating vehicle suspension performance based on physical sensations. | ||
| View original record | To R. from Hs/Rm. c. to BJ. RG. c. to E. DA. c. to BY. Na. c. to Wor. X8410 X4048 Hs/Rml/LG16.4.26. SUSPENSION. V332 XZ35 We have now done a certain amount of work on this subject which has enabled us… | ||
| scan0136 | Suspension tests, detailing damping, spring strength, and comparisons between the Phantom, 20 HP, and Lancia models. | ||
| View original record | contd :- -2- 20 and 30 m.p.h. All our tests so far go to shew that the factor of primary importance is the amount of damping employed on either the front or the rear of the car. As yet we have not… | ||
| scan0137 | Comparison of suspension performance for the Phantom and 20 HP models under specific road test conditions. | ||
| View original record | PHANTOM. 20 TO 30 M.P.H. ON A SLIGHTLY WAVY MAIN ROAD. Front shock dampers tightened from 25 to 100 lbs. Definitely worse riding in the back of the car. Rear shock dampers - ditto. Much the same… | ||
| scan0138 | Short memo suggesting the circulation of an enclosed document about tyres to avoid confusion. | ||
| View original record | To Hs. } from B.J. Ba. By. K. Rg. } BJ6/H16.4.26. X8410 Re Tyres. R. has suggested that the enclosed might be circulated to those officials who had received a copy of CJ2/E25.3.26, in order to prevent… | ||
| scan0139 | From Mr. Royce clarifying his position on suspension, tyres, and the standardization of shock dampers for Phantom and 20 HP models. | ||
| View original record | COPY OF HAND-WRITTEN MEMORANDUM FROM Mr. ROYCE. Le Canadel, 29. 3. 26. Phantom and 20 HP. Suspension and Tyres. My dear C.J., My letters on the above have led to some misunder-standing. Perhaps I was… | ||
| scan0140 | Tyre pressures, road holding, steering issues, and shock dampers, signed by F.H. Royce. | ||
| View original record | -2- finds them pumped so hard (as instructed by Dunlops) that the cars are dangerous, uncomfortable and noisy, much of this is at once avoided by the medium pressure tyres. I believe there is little… | ||
| scan0141 | Transcribing a cable from Mr. Royce regarding New Phantom springing specifications and testing. | ||
| View original record | BJ. Won. Hs. Mr.Fuller. Ne. Der. E. NEW PHANTOM SPRINGING. We give below copy of a cable received to-day from Mr.Royce:- "Phantom springing supposing Olleys thirty five per cent nearly correct then I… | ||
| scan0142 | Issues and proposed modifications for fitting hydraulic shock dampers to a 7-EX model. | ||
| View original record | 4840 To Hs.) DA. ) FROM R. BY. ) LE CANADEL. c. to BJ. Wor. RE. RR. HYDRAULIC SHOCK DAMPERS. X.235 X.8410 X.8520 X.8430 We could not fit these to 7-EX satisfactorily because of the second wing stay… | ||
| scan0143 | Difficulties encountered during a work task related to component fitting. | ||
| View original record | contd :- -2- Unless I am entirely mistaken (but I looked at it for half an hour) those engaged upon this work should have seen the difficulty we mave met, the worst thing being the confusion between… | ||
| scan0144 | Modifications and alternative designs for the Phantom suspension system. | ||
| View original record | To R. from DA. c. to BJ. Hs. DA2/M17.4.26. PHANTOM SUSPENSION. X.8410 X.8420 X.4048 (1) With reference to the complaints about the suspension at moderate speeds over smooth roads it was suggested in… | ||
| scan0145 | Continuation memo on car oscillation due to road irregularities, with applications to past, present, and future work. | ||
| View original record | contd : -2- oscillation of the sprung mass of the car about its centre of gravity by the road irregularities acting on the front axle. Para (1) applies to cars now made or nearly so. " (2) applies to… | ||
| scan0146 | Necessary improvements to the Phantom's suspension springing. | ||
| View original record | To Hs. } FROM R. BY. } LE CANADEL. Da. } c. to BJ. Wor. E. OY. c. to NA. Mr. Fuller. X8410 R2/M18.4.26. PHANTOM SPRINGING. X.8410 X.3900 X.235 X.4429 One or'two things seem necessary to make us happy… | ||
| scan0147 | Continued note listing potential causes for an issue, including tyres, shock dampers, and springs. | ||
| View original record | contd :- -2- In nearly every case I have ever met it has been either (1) tyres too tightly pumped, (2) Hartford shock dampers, (3) unsuitable springs to the load. Any one of these can make all the… | ||
| scan0148 | Springing comfort issues and shock absorber performance on the Phantom model. | ||
| View original record | R. from Na. X8410 Copy to E.W.H & M. Beavan Na2/W20.4.26. RE PHANTOM SPRINGING. Your memo R1/M14.4.26 re the above subject covers the ground as far as we are concerned in the United States. We feel as… | ||
| scan0149 | Model built to investigate the 'centre of percussion' in the Phantom and 20HP chassis suspensions. | ||
| View original record | To HS from DA. X8410 Da3/M20.4.26. PHANTOM SUSPENSION - X.8410. We have made a small model of a bar carrying weights suspended from two springs of different stiffness, and though it is of an… | ||
| scan0150 | Crude method for comparing car riding qualities by measuring water spillage to test the 40/50 HP suspension. | ||
| View original record | To R. from Hs/Rm. c. to BJ. RG. c. to E. DA. c. to BY? Wor. c. to Na. X8410 Hs/Rm4/LG20.4.26. RR. 40/50 HP. SUSPENSION. X8410 X235 X5410 We have now evolved a somewhat crude method of comparing the… | ||
| scan0151 | Effects of suspension components and tyre pressures on vehicle ride quality. | ||
| View original record | contd :- -2- car with ball bearings between the spring leaves. While a little friction does not make it very much worse at this speed, actually the optimum riding condition is with no shock dampers.… | ||
| scan0152 | Test report on moving a vehicle's centre of gravity and the resulting effects on suspension and weight distribution. | ||
| View original record | contd :- -3- advantage gained in the back seats from increasing the initial deflection of the front springs 20% can be more than annuled by exceeding the standard setting of the rear shock dampers by… | ||
| scan0153 | Test comparing ride quality and passenger displacement between different car models using a water spillage measurement method. | ||
| View original record | contd :- -4- chassis with more rigid support and spring deflections throughout arranged to correspond exactly with those on the 20 HP. which gives us such excellent riding. Our present test shewed us… | ||
| scan0154 | Front spring deflection, riding comfort, and high-speed wobbles. | ||
| View original record | contd :- -5- source of complaint. While weaker front springs do not shew up to great advantage under these circumstances, our impressions from driving cars on indifferent and bad road surfaces are… | ||
| scan0155 | Procedure for testing the rating of vehicle springs. | ||
| View original record | SPRING TESTS. The first method of ascertaining the rating of these springs is as follows :- The spring shackles should be in the standard position. The load on the spring should be increased by… | ||
| scan0156 | Development of accelerometers and seismographs for measuring car suspension and riding qualities. | ||
| View original record | To OY. from Hs/Rn. X8410 Hs/Rml/LG21.4.26. SUSPENSION. X3900 X8410 X4564 We were very interested in your remarks re. Suspension. We thank you for the sketch of the Accelerometer given in OY3/E31626.… | ||
| scan0157 | Telegram regarding checking the relative stiffness of original and present front springs. | ||
| View original record | COPY OF TELEGRAM RECEIVED FROM R. X8410 ORIGINAL 23rd. April 1926. LAVANDOU. ROYCAR, DERBY - ANGLETERRE. ABSOLUTELY NECESSARY TO CHECK RELATIVE STIFFNESS IN POSITION OF ORIGINAL AND PRESENT FRONT… | ||
| scan0158 | Phantom suspension tests, specifically regarding the front springs and their effect on ride quality. | ||
| View original record | ✓8410 To R. from Hs/Rm. c. to BJ. RG. c. to DA. E. c. to BY. Wor. c. to Na. EP PHANTOM SUSPENSION. We believe that we have now established the relative value of most of the features of the car with… | ||
| scan0159 | Comparative analysis of vehicle ride quality and suspension tests on various models including the Phantom and Hispano-Suiza. | ||
| View original record | contd :- -2- pressures and shock dampers which chauffeurs are in the habit of making. TEST 11. Demonstrates that tyre pressures are quite one of the most important features with our present suspension… | ||
| scan0160 | Comparison of riding comfort between the Phantom, Silver Ghost, and 20 HP models, with analysis of tests on shock dampers and suspension. | ||
| View original record | contd :- -3- between the Phantom and Silver Ghost, and this is borne out by Test 111., we push the weight back and get better riding. One other point this demonstrates is that the Silver Ghost is not… | ||
| scan0161 | Typed memorandum discussing maximum spring movement and its effect on riding comfort. | ||
| View original record | contd :- -4- the maximum spring movement recorded over our test stretch of road which reproduces the present spring complaints, and find it to be 1.100" or say .5" each side of the normal load… | ||
| scan0162 | Chart comparing road test results at 23 M.P.H. for different vehicle configurations. | ||
| View original record | ROAD SPEED ALL TESTS 23 M.P.H. TEST I COMPARISON OF EFFECT OF ALTERING FRONT SUSPENSION OF CAR ON RIDING IN REAR SEATS 40/50 "PHANTOM" CAR 44 P.K. LIMOUSINE REAR SHOCK ABSORBERS 25 LBS. FRICTION TYRE… | ||
| scan0163 | Shock absorber effectiveness, correlating water loss during tests to observed riding comfort. | ||
| View original record | TEST V EFFECT OF REAR SHOCK ABSORBERS CAR CONDITIONS AS IN TEST I B. ROAD SPEED 23 M.P.H. 64 c.c. SHOCK ABSORBERS 60 LBS. 54 c.c. SHOCK ABSORBERS 25 LBS. 46 c.c. No SHOCK ABSORBERS TEST VI EFFECT OF… | ||
| scan0164 | Complaints about stiff Phantom rear suspension on U.S. cars compared to Springfield models. | ||
| View original record | To R: from Hs. c. to BJ. E. c. to RG. DA. c. to BY. Wor. c. to Na. PHANTOM SUSPENSION. As you suggest, a probable reason why there has been a general complaint of Phantom springing in the U.S. is the… | ||
| scan0165 | Table of chassis numbers, body weights, passenger capacities, and spring data for New Phantom models in the U.S.A. | ||
| View original record | NEW PHANTOMS IN U.S.A. Chassis. Body No. of SPRINGS. No. weight. cwts. passengers. O.S. front. N.S. front. O.S. rear. N.S. rear. 12-MC 11½ 4 1165 1115 2328 2235 16-MC 12 3.4 1156 1100 2300 2204 23-MC… | ||
| scan0166 | Tabulated data for standard and 20% stiffer rear springs on the New Phantom Chassis, categorised by series and weight. | ||
| View original record | NEW PHANTOM CHASSIS. REAR SPRINGS. SERIES. | | MC. | RC. | HC. | LC. | SC. | DC. | TC-(to date) | |---|---|---|---|---|---|---|---| | Below 2000 lbs. | 20 | 27 | 17 | 16 | 29 | 61 | 40 | | 2000 " | 18… | ||
| scan0167 | Preliminary test results for hydraulic dampers on a Phantom suspension system, including a comparative bar chart. | ||
| View original record | To R. from Hs./Rm. c. to Bd. RG. c. to E. DA. c. to BY. Wor. c. to Na. Handwritten: X8410 PHANTOM SUSPENSION. Handwritten: X8410 (crossed out) 4235 We have carried out some preliminary tests with the… | ||
| scan0168 | Comparing the suspension and riding comfort of the Phantom and Silver Ghost models. | ||
| View original record | To R. from Hs. c. to BJ. RG. c. to E. DA. c. to BY. Wor. c. to Na. x8410 Hs2/LG24. 4. 26. PHANTOM SUSPENSION. x2628 x3900 x94+10 We have obtained several pre front brake Silver Ghost cars from the R.… | ||
| scan0169 | Summary memo on chassis suspension, covering the roles and interactions of tyres, road springs, and hydraulic dampers. | ||
| View original record | To HS. DA. ) from R. OY. BY. ) Le Canadel. C. BJ. Wor. RG. E. C. NA. CWB. PN. EP. Mr. Fuller. RL/M25.4.26. CHASSIS SUSPENSION. X.8410. This is not intended to contain anything very novel, but a… | ||
| scan0170 | Vehicle suspension, addressing spring length, stiffness, and the critical importance of effective hydraulic damping. | ||
| View original record | -2- Contd. these are now demanding to be longer, so that we are trying the new models EAC. 1 & 7 with 48" and 45" springs, and even should we find some distinct modification to the front axle system I… | ||
| scan0171 | Improving vehicle handling through front axle design, weight distribution, and suspension adjustments. | ||
| View original record | -3- Contd. We shall be working to find a design of something more perfect for the front axle control, and have hopes of doing some good in this direction, but at the moment we must make the best of… | ||
| scan0172 | Suspension design, road spring control, and ongoing experiments with different schemes. | ||
| View original record | -4- Contd. There are several other items not mentioned in the foregoing which are rather lengthy to discuss, such as the distance from the road to(struck out) of the road spring control causing… | ||
| scan0173 | Confirmation of a telegram requesting results for rating tests on springs. | ||
| View original record | CONFIRMATION OF TELEGRAM. X8410 WW. 26.4.26. HIVES. ROYCAR. DERBY. REGARDING RATING TESTS ON SPRINGS ASKED FOR BY R. COULD YOU WIRE US RESULTS AS SOME WORK MAY DEPEND UPON IT. DAY. DICKINSON BOND | ||
| scan0174 | Calculated position of the centre of percussion for the New Phantom and 20HP chassis. | ||
| View original record | X8410 To BY & HS FROM DA. DA2/M26.4.26. NEW PHANTOM SUSPENSION - X.5410. We send herewith N.Sch: 2178. which we have made to give R. some information about the centres of gravity of the various cars,… | ||
| scan0175 | Telegram requesting the results of rating tests on springs. | ||
| View original record | POST OFFICE TELEGRAPHS TELEGRAMS for INLAND addresses may be handed to the messenger who delivers this form. The Post Office accepts telegrams by telephone. X8410 No... Office Stamp 0249 DERBY SENT At… | ||
| scan0176 | Experiments on Phantom suspension, focusing on shock dampers and weight distribution. | ||
| View original record | To Hs. DA. BY. } FROM R. c. to BJ. E. OY. NA. X8410 R1/M27.4.26. PHANTOM SUSPENSION. DAMPERS AND DISTRIBUTION OF WEIGHT. X. 8410 X. 235 X. 8840 I notice two points that may be escaping notice :- (1)… | ||
| scan0177 | Tests confirming the relative merits of hydraulic and friction shock dampers for low-speed riding comfort. | ||
| View original record | To R. from Hs/Rm. c. to BJ. RG. c. to E. DA. c. to BY. Wor. c. to Na. x8410 Hs/Rml/LG28.4.26. SUSPENSION. x4416 x8410 We have carried out tests in confirmation of our report Hs/Rml/LG24.4.26. We find… | ||
| scan0178 | Page discussing the measurement of average spring deflection using a Chronograph for optimal touring performance. | ||
| View original record | contd :- -2- of free movement that we require to enable us to get the best riding results for ordinary slow speed main road touring. These consist of finding the average spring deflection under such… | ||
| scan0179 | Desirable features of the Lancia Lambda car and recommending its purchase for evaluation. | ||
| View original record | To R. from Hs. c. to BJ. RG. c. to E. DA. c. to BY. WOr. X8410 Hs2/LG29.4.26. LANCIA LAMBDA CAR. xu048 It was pointed out by ourselves and agreed to by Sales after tests on a car, that the Lancia… | ||
| scan0180 | List of points comparing steering, braking, and suspension characteristics, likely between a Lancia and another vehicle. | ||
| View original record | contd :- -2- (2) The steering is not affected by the brake torque. The brakes can be applied hard with the steering on lock with no danger. In the case of our own cars, if it is necessary to swerve… | ||
| scan0181 | Analysis of a vehicle's disadvantages regarding steering, ground clearance and suspension, with proposed improvements. | ||
| View original record | contd :- -3- The disadvantages with the scheme are :- (1) Big distance off centre-point steering. (2) Very little ground clearance. (3) One would think that the sliding bearings in the front spring… | ||
| scan0182 | Examination and description of the front springing and hydraulic dampers of the Lancia Lambda car. | ||
| View original record | To R. from Hs/ACL. c.c. to BJ. RG. c.c. to E. BY. c.c. to DA. Wor. c.c. to Na. X8410 Hs/ACL1/LG29.4.26. FRONT SPRINGING OF THE LANCIA LAMBDA AND DESCRIPTION OF THE HYDRAULIC DAMPERS. X4048 We have had… | ||
| scan0183 | Technical analysis of a car's coil spring suspension system, detailing its operation and performance characteristics. | ||
| View original record | contd :- -2- The sprung weight of the car is normally carried by a main coil spring - considering one side only - which has a rating of 85.5 lbs/inch, and an initial static deflection, due to the… | ||
| scan0184 | Continued page describing the characteristics and performance of a variable-rated suspension system. | ||
| View original record | contd :- -3- Positive deflections - i.e., upward road wheel deflect- ion - up to 2.55" from the mean position, take place under the action of a comparatively low rated spring of 88.5 lbs/in.… | ||
| scan0185 | Brief description of the parts and action of a double-acting plunger type hydraulic damper. | ||
| View original record | contd :- -4- HYDRAULIC DAMPERS. The following is a brief description of the parts and the action of this damper. At present we have only been able to conduct a few simple tests on the car but are… | ||
| scan0186 | Operation of a hydraulic damper, focusing on oil flow, piston movement, and clearances during compression and rebound. | ||
| View original record | contd :- -5- in the stem, into the chamber 'C'. When the cylinder is near the end of its stroke the partition between the two chambers 'A' and 'C' will partly cover the recess 'D' for the oil outlet… | ||
| scan0187 | Continued analysis of damper action, focusing on fluid resistance, rebound, and bump deflection. | ||
| View original record | contd :- -6- mean load position, the effect of which would be the comparative rapid return of the road wheel from a 'bump' excursion to its mean riding position with vigorous fluid resistance given to… | ||
| scan0188 | Diagrammatic sketch of a damper showing a change in cylinder diameter. | ||
| View original record | DIAGRAMMATIC SKETCH OF DAMPER TOP GUIDE FRAME D C A B DIAM. CYL 'A' = 1.262. DIAM. CYL 'B' = 1.291. 1.825 PISTON DIAM. = 1.257. .078 DIAM HOLE BOTTOM GUIDE ROAD REACTN 1.262 DIA 1.291 DIA SHOWING… | ||
| scan0189 | Graph showing the internal friction of a Lancia rear spring by plotting load against deflection. | ||
| View original record | LANCIA REAR SPRING INTERNAL FRICTION DEFLECTION IN INS INS 7.0 6.0 5.0 4.0 3.0 2.0 1.0 LOAD IN LBS 200 400 600 800 1000 1200 1400 1600 LBS EXTN. COMPRN ROLLS-ROYCE, LIMITED PRINT ROOM, 26 APR 26 DERBY | ||
| scan0190 | Load-deflection diagram for a Lancia-Lambda front suspension. | ||
| View original record | LOAD-DEFLECTION DIAGRAM FOR LANCIA-LAMBDA FRONT SUSPENSION. HYDRAULIC DAMPERS ARE NOT TAKEN INTO ACCOUNT ON THIS DIAGRAM. SPRING LOAD. LBS. DEFLECTION FROM MEAN RIDING POSITION. INS. NEGATIVE OR… | ||
| scan0191 | Chassis springing instructions and load calculation worksheet for a specific vehicle. | ||
| View original record | RR 71 (20H) (DB 491 16-12-24) MP 307678 ROLLS-ROYCE LTD. /840 SERIES "W" CHASSIS SPRINGING INSTRUCTIONS. CHASSIS 80-LC. BODY WEIGHTS Wt. | Front | Rear 5 cwt. | 84 | 196 6 ,, | 101 | 235 7 ,, | 118 |… | ||
| scan0192 | Springing instructions and weight calculations for a 20 HP Chassis, number 1459. | ||
| View original record | RR 71G (10 H) (SK 987-25-6-23) MP 274344 ROLLS-ROYCE LTD. SERIES G 20 H.P. CHASSIS SPRINGING INSTRUCTIONS. CHASSIS 1459 [Table 1: BODY WEIGHTS.] Weight | Front | Rear 5 cwt. | 70 | 210 6 ,, | 84 | 252… | ||
| scan0193 | Clarifying a telegram about spring stiffness and load deflection for the Phantom suspension. | ||
| View original record | To Hs. from DA. X8410 DA2/M29.4.26. PHANTOM SUSPENSION. X. 8410 X. 9410 X. 3900 We understand that there was some doubt about the meaning of our telegram re. spring rating. We were going on R's… | ||
| scan0194 | Internal memorandum addressing recurring issues with car suspension being incorrectly sprung for their loads. | ||
| View original record | To Hs. from R. c. to BJ. Wor. c. to BY. LHS. c. to RG. EP. X. 8410 R7/M4.5.26. RE. SUSPENSION. It is quite evident that the chief trouble that has taken so much time and attention and so much loss of… | ||
| scan0195 | Suspension tests conducted on a Phantom car, comparing standard and weaker front springs. | ||
| View original record | To R. from Hs/Rm. c. to BJ. RG. c. to E. DA. c. to BY. Na. c. to Wor. 48410 Hs/Rm4/LG4. 5. 26. SUSPENSION. 48410 74429 We have carried out tests on a Phantom car fitted with front springs giving an… | ||
| scan0196 | Suspension tests on a Phantom Demonstration Landaulet with a Hooper body. | ||
| View original record | X8410 Hs. PN1/DN10.5.26. TO JCR FROM PN c.c. to BJ, BY, Hs, JP & OWB [STAMP: RECEIVED] Springing of Phantom Demonstration Landaulet - No. 22-MC. Hooper Body. This is one of our two Phantom Landaulets… | ||
| scan0197 | Requesting an opinion on how to improve the riding comfort of a new Trials Landaulet for demonstration purposes. | ||
| View original record | -2- [Stamp: EWT / 1.XII.28] [Handwritten: considered] I am anxious to have your separate opinion as to what you think might be the best way to deal with this situation. We have practically decided… | ||
| scan0198 | Material selection and heat treatment for chassis road springs, comparing Chrome Vanadium and Silico-Manganese steels. | ||
| View original record | X8440 HS. C.Wd. C.Roy. BY2/H. 12.5.27. RECEIVED MAY 13 1927 CHASSIS ROAD SPRINGS. During a recent conference with the Directors of Messrs Firths on the above subject, I pointed out to them that whilst… | ||
| scan0199 | Experiments with a more fool-proof steel for springs on 20 HP and 40/50 HP models. | ||
| View original record | - 2 - BYZ/H. 12.5.27. cost of the steel in the first place, and secondly, would be using a steel which is much more fool-proof and less susceptible to variations from inexact handling. If you will let… | ||
| scan0200 | Springing complaint on a Phantom Demonstration Landaulet, recommending fitting new hydraulic dampers. | ||
| View original record | To PN. from Hs. c. to Wor. BJ. c. to CWB. BY. c. to EP. SPRINGING OF PHANTOM DEMONSTRATION LANDAULET. NO. 22-MC. The complaint you make of this springing is one which we know exists and one upon which… | ||
| scan0201 | Outlining the requirements for various spring and torsion tests. | ||
| View original record | To RHC. from Hs/Rm. SPRING TESTS. While we have the spring testing tackle rigged up, we should like to obtain the following further particulars :- (1) Narrow axle pad - vertical shackle. Three sets of… | ||
| scan0202 | Data table for recording readings from a load test taken after oscillation. | ||
| View original record | LOAD LIFTED AND ALLOWED TO FALL - READING TAKEN AFTER OSCILLATION. Load applied at end of torque arm. 1st. reading. 2nd. reading. (Clips re-tightened). 200 400 600 800 1000 | ||
| scan0203 | Planned test on the rear spring movement of a Phantom vehicle. | ||
| View original record | To G.Ratcliffe - from Hs/Rm. X8410 Hs/Rm1/LG19.5.26. PHANTOM REAR SPRING MOVEMENT TEST. We wish to carry out some tests on the amplitude and frequency of the spring movements relative to the body on… | ||
| scan0204 | The dispatch of a Phantom Trials Landaulet for the fitting and testing of hydraulic shock-absorbers. | ||
| View original record | X8410 PN7/DN19.5.26. TO Hs c. to Wor, EP. H. Hm. Bk. FROM PN I am sending to you our Phantom Trials Landaulet - No. 22-MC - Hooper body. This car will arrive before the holidays in order that… | ||
| scan0205 | Steering difficulty on car 7-LC after fitting low pressure tyres, with a request to test different front tyre pressures. | ||
| View original record | To PN. From Hs. c. to CWB. c. to EY. x8410 HsL/LG22. 5. 26. 7-LC CAR. x8950 Owing to the fact that we had to fit new cross steering levers in order to fit the wheels with well base rims, we had very… | ||
| scan0206 | Booking boat berths for two cars, 7-LC and 10-EX, for a trip from Folkestone to Boulogne. | ||
| View original record | X8410 RECEIVED 27 MAY 1926 H8 FROM PN PN7/DN26.5.26. TO Hs We are engaging berths for the two cars 7-LC and 10-EX on the boat from Folkestone to Boulogne at 11 a.m. on Saturday morning next. It is… | ||
| scan0207 | Confirming boat travel arrangements from Dover for two cars and their drivers. | ||
| View original record | X8410 PN4/DN27.5.26. TO Hs FROM PN Confirming our conversation on the 'phone today, owing to the shortage of boat capacity available, the first bookings we could achieve are for Monday next, one car… | ||
| scan0208 | To add specific springs to the invoice for car 12-EX. | ||
| View original record | To D/BP. from Hs/Rm. X8410 Hs/Rm1/LG27.5.26. 12-EX CAR. Will you please put on the invoice in connection with the above car, the following :- 4 Springs F.74422 4 " F.74423 4 " F.71401 These parts… | ||
| scan0209 | Front spring rating tests and their impact on ride comfort. | ||
| View original record | Exptl. Report. Spare X410 To R. from Hs/Rm. c. to BJ. Wor. c. to Rg. E. c. to Da. Ry. c. to Cy. Hs/Rml/T27.5.26. FRONT SPRING RATING TESTS. Y3900. We have carried out a number of front spring rating… | ||
| scan0210 | Continuation page discussing spring load testing methods and results. | ||
| View original record | Expl. Report. (Contd) -2- Hs/RmL/T27.5.26. the same as far as possible when pulled up by the same individual, is indicated in Graph 8 & 9 The majority of the tests were conducted by allowing the… | ||
| scan0211 | Report analysing the effects of shackle inclination and pad variations on spring performance, referencing several graphs. | ||
| View original record | Contd. -3- Hs/Rml/T27.5.26. deflection as obtains with a narrow pad. Briefly, pad variations within the limit used by R.R. have no effect on the springs other than to increase their torsional… | ||
| scan0212 | The performance and testing of Woodhead and Standard type leaf springs, comparing calculations with experimental results. | ||
| View original record | Contd. -4- Hs/Rml/T27.5.26. We consider that the falling off in rating due to the inward inclination of the shackle can be completely accounted for by the horizontal compression set up in the spring.… | ||
| scan0213 | Front spring rating tests, comparing different configurations via a data table and a list of graphs. | ||
| View original record | Attached to :- Ha/Rsl/T27.5.25. FRONT SPRING RATING TESTS. α Wide axle pad, 21° forward shackle. Bump loading. β Narrow axle pad, Vertical shackle. Bump loading. ε Wide axle pad, 10° inward shackle.… | ||
| scan0214 | Two graphs illustrating spring rating tests, comparing shackle angles and different spring systems. | ||
| View original record | (1) SPRING RATING TESTS (β) AND (α) EFFECT OF SHACKLE ANGLE. WIDE PADS. RATING LBS/IN. TOTAL LOAD LBS. α = 21° FORWARD SHACKLE β = VERTICAL SHACKLE WORKING RANGE 1100 LBS (δ) SPRING RATING TESTS. (δ)… | ||
| scan0215 | Two graphs showing spring rating tests, one for shackle angle and the other for pad width. | ||
| View original record | GRAPH 2: SPRING RATING TESTS. (δ) AND (€). EFFECT OF SHACKLE ANGLE NARROW PADS. Y-AXIS: RATING LBS/IN X-AXIS: TOTAL SPRING LOAD. LBS. LEGEND: δ = 21° FORWARD SHACKLE. € = VERTICAL SHACKLE. GRAPH… | ||
| scan0216 | Blueprint showing two graphs for spring rating tests, comparing pad widths and spring systems. | ||
| View original record | (4) SPRING RATING TESTS. (δ) AND (α) EFFECT OF PAD WIDTH. 21° SHACKLE RATING LBS/IN. TOTAL LOAD. LBS. α = WIDE PAD δ = NARROW PAD. WORKING RANGE 1100 LBS. (6) SPRING RATING TESTS. (α) AND (ε)… | ||
| scan0217 | Two graphs illustrating spring rating tests, one on the effect of internal friction and the other on the agreement of independent tests. | ||
| View original record | TOP GRAPH: (7) SPRING RATING TESTS (ε) AND (ε II) EFFECT OF INTERNAL FRICTION. RATING LBS / IN TOTAL SPRING LOAD. LBS WORKING RANGE GRADUAL BUMP NARROW PADS VERTICAL SHACKLE ε II ε BOTTOM GRAPH: (8)… | ||
| scan0218 | Graph plotting spring rating against total spring load, showing the effect of internal friction under gradual and bump loading. | ||
| View original record | (8) SPRING RATING TESTS (B) AND (B II). EFFECT OF INTERNAL FRICTION. WIDE PAD. VERTICAL SHACKLE. SPRING RATING LBS/IN. TOTAL SPRING LOAD. LBS. B II = GRADUAL LOADING. B = BUMP LOADING. B II B | ||
| scan0219 | Graph of spring rating tests, showing the effect of deflection due to shackle movement. | ||
| View original record | (10) SPRING RATING TESTS. γ I Effect of Deflection due to Shackle movement Corrected Bomb Loading Narrow Pad Shackle 10° Inward. Y-Axis: SPRING RATING LBS/IN, 200, 300, 400 X-Axis: TOTAL SPRING LOAD.… | ||
| scan0220 | Graph plotting the variation of shackle angle against compression for a narrow pad with a 10° inward shackle. | ||
| View original record | (112) VARIATION OF SHACKLE ANGLE. Narrow Pad 10° Inward Shackle. YI SHACKLE ANGLE. 0° 10° 20° 30° 40° COMPRESSION INCHES 0 1 2 3 4 5 6 | ||
| scan0221 | Graph comparing the performance ratings of a Woodhead's Special Spring and a 1st Standard Spring under varying loads. | ||
| View original record | (13) SPRING RATING TESTS. (η & α) COMPARISON OF SPRINGS Wide Pads, 21" Shackles Mean Curve Y-Axis: SPRING RATING LBS/INS. X-Axis: TOTAL SPRING LOAD LBS. Legend: η = WOODHEAD'S SPECIAL SPRING α = 1ST… | ||
| scan0222 | Graph of spring rating tests showing the effect of deflection due to shackle movement. | ||
| View original record | (12) SPRING RATING TESTS. (E) Effect of deflection due to Shackle movement SPRING RATING LBS/IN Corrected Bump Loading Narrow Pad Vertical Shackle Corrected OII e TOTAL LOAD LBS 450 400 350 300 250 0… | ||
| scan0223 | Design principles and modifications for hydraulic shock dampers. | ||
| View original record | To HS/RM. from R. C. to BJ. OY. DA. WOR. C. to Mr.A.W. Claremont. X8410 R5/M28.5.26. HYDRAULIC SHOCK DAMPERS - X.235. I am pleased the hydraulic dampers appear to be shewing their superiority over the… | ||
| scan0224 | Calculations and test results related to front spring stiffness and shackle inclination. | ||
| View original record | To Hs. from R. c. to BJ. BY. c. to DA. OY. X8410 R2/M9.6.26. FRONT SPRING STIFFNESS. X.8410 X.433 Referring to your tests on the above, in our original spring calculations we allow for a certain… | ||
| scan0225 | Customer complaint about front suspension and the feasibility of a rear-mounted spare wheel carrier. | ||
| View original record | To EP. from Hs/Rm. C. to Hn. BJ. D.L. X8410 Hs/Rm2/LG9.6.26. 117-MC CAR. X417 X8410 With reference to EP6/HS.6.26. We entirely agree with this note as to the nature of Mr. Summers complaint. We are… | ||
| scan0226 | The 'Low Chassis Campaign' and improving comfort by lowering seat cushions. | ||
| View original record | To B.J. FROM R. Cc. to LHS. PN. " WOR. BY. CWB. HS. X8410 R19/M10.6.26. LOW CHASSIS CAMPAIGN -X.8410 X8830 X8770 In all the cars I see the back seats are uncomfortably high and one feels one is… | ||
| scan0227 | Steering wander and wobble issues, likely caused by incorrect spring loading and weight distribution. | ||
| View original record | HS. X8410 CHB1/GM/16-6-26. S/H. XP. Copies to:- NN. Hs. SY JLE. G. BUFFER TO AXLE CLEARANCES. Your memo EP10/H11626 opens a most serious question. From it, it would seem that a large proportion of our… | ||
| scan0228 | Tests conducted on hydraulic shock dampers, detailing issues with oil temperature control and the testing methodology. | ||
| View original record | To R. from Hs/Rm. c. to BJ. RG. c. to E. DA. c. to BY. Wdr. c. to OY. x8410 Hs/Rm2/LG16.6.26. HYDRAULIC SHOCK DAMPERS. x235 We have carried out some tests to determine how the load on these shock… | ||
| scan0229 | Continued analysis of oil flow resistance through orifices in hydraulic shock dampers. | ||
| View original record | contd :- -2- fixed loading equivalent to 25 lbs/sq.in. pressure. From technical books on the subject it appears that the resistance to oil flowing through orifices should be (a) Directly proportional… | ||
| scan0230 | Graph from hydraulic shock absorber tests showing the variation of oil flow with pressure. | ||
| View original record | R.R. HYDRAULIC SHOCK ABSORBER TESTS CURVE SHOWING VARIATION OF OIL FLOW (THRO' HIGH PRESSURE END) WITH PRESSURE CURVE CONVERTED TO CONSTANT TEMP. OF 20°C. PRICES' MOTORINE 'C' OIL OIL PRESSURE (LBS… | ||
| scan0231 | Difficulties experienced with contact accelerometers for suspension testing. | ||
| View original record | To OY. from Hs/Rm. +8410 Hs/Rml/LG6. 7.26. SUSPENSION. X912 / X8410 +6565 As we have now had considerable experience with the contact accelerometers which we have made (similar to the sketch which you… | ||
| scan0232 | Accelerometer testing, discussing issues with re-setting points and observations from road tests. | ||
| View original record | -2- to enable us to carry out continuous tests more than 4 days without the points requiring attention. Whenever we clean up the points we have to re-set the accelerometer. We find it exceptionally… | ||
| scan0233 | The challenges of measuring riding comfort, comparing accelerometers to crude tests and differentiating between tyre and spring setups. | ||
| View original record | contd :- -3- another variable to the present host. On the whole we have not so far had much success with the contact accelerometer, in fact it has not been nearly so reliable as our exceptionally… | ||
| scan0234 | Test report and recommendation for modifications on the 'Blue Car' Phantom model. | ||
| View original record | To Hs. from R. c. to BJ. Wor. BY. c. to EP. LHS. DA. c. to E. CWB. PN. X8410 R6/M12.7.26. STEERING ETC. OF BLUE CAR 10-EX. X.8430 X.8770 Occasionally during the last fortnight I have been running the… | ||
| scan0235 | The use of accelerometers to measure riding comfort and discomfort levels in relation to the Phantom suspension. | ||
| View original record | To R. from Hs/Rn. c. to BJ. Wor. c. to E. Da. c. to By. Cy. c. to PN. CWB. X8410 Hs/RnL/T15.7.26. PHANTOM SUSPENSION. 4235 We have spent a certain amount of time trying to evolve a satisfactory… | ||
| scan0236 | Ride comfort testing using a water spillage method to compare different vehicle models. | ||
| View original record | Contd. -2- Hs/Rml/T15.7.26. on English roads at moderate speeds. Owing to the unreliability of comparisons with accelerometers, we have reverted to the water test which continues to confirm our… | ||
| scan0237 | Comparison of various damper and suspension setups through high-speed road tests on different vehicle models. | ||
| View original record | Contd. -3- Hs/Rml/T1 5.7.26. We are quite aware that this slow speed work makes shock dampers appear unnecessary, and in order to shew up the relative merits of suspensions and dampers we are… | ||
| scan0238 | Series of graphs comparing riding comfort based on shock dampers, shackle angle, tyre pressure, and different car models. | ||
| View original record | RIDING COMFORT TESTS IN THE FRONT SEATS OF R.R. CARS ROAD SPEED IN ALL TESTS 23 M.P.H. GRAPH I EFFECT OF SHOCK DAMPERS ON CAR RIDING AT FRONT 98 N.K. OPEN TOURING TYRE PRESS. 40 & 45 HYDRAULIC DAMPERS… | ||
| scan0239 | Offer from Westinghouse to fit auxiliary air springs on a Phantom car. | ||
| View original record | 48440 To OY. from Hs/Rm. Hs/RmL/LG9. 8. 26. AIR SPRINGS. L4000 We received a letter from the Westinghouse Air Spring Co., dated 27th. April 1926, offering to fit a set of their auxiliary air spring… | ||
| scan0240 | Request for stronger rear springs with a specific poundage for the 12-EX car, models EAC-1 and 2. | ||
| View original record | To BY. from Hs/Rm. X8410 Hs/Rm4/LG9. 8. 26. 12-EX CAR - ROAD SPRINGS. X7410 All the rear springs which we have at present for EAC-1 and 2 are too weak. We should be obliged if you could obtain for us… | ||
| scan0241 | The strength of special rear springs for the 117-MC Summers car, noting they are stronger than required. | ||
| View original record | To BY/SS. from Hs/Rm. x8410 Hs/Rm2/LG21.8.26. 117-MC - SUMMERS CAR. x4117 X8410 With reference to the special rear springs which were ordered for 117-MC car. We attach details of the buffer clearances… | ||
| scan0242 | Table of buffer clearance and wheel weight measurements for the Summers Car. | ||
| View original record | 117-MC - SUMMERS CAR. Buffer clearance. | Weight on wheel without passengers. | With average passengers. | cwt. qrs. lbs. |… | ||
| scan0243 | Complaints regarding bad springing and uncomfortable rear seating on the 40/50 Phantom chassis. | ||
| View original record | Sgd " Derby. copy " " London. " " "Hs" Derby X8410 Ps4/JP.31/8/2 RE SPRINGING OF 40/50 CHASSIS. AND REAR SEATING. I do think we are getting far too many complaints of bad springing on Phantom chassis,… | ||
| scan0244 | Modified methods for calculating the springing on 40/50 HP chassis concerning rear seats, passenger numbers, and luggage weight. | ||
| View original record | 48410 9-9/26 H/De Whar. C. HS. BY19/H. 6.9.26. ---------------- RE SPRINGING OF 40/50 HP. CHASSIS IN RELATION TO R AR SEATS. ---------------------------------------------------------------- Referring… | ||
| scan0245 | Technical discussion on chassis suspension dynamics, spring calculations, and the prevention of pitching motion. | ||
| View original record | - 2 - I am giving you the above information in detail so that you will appreciate that a distinct difference has recently been made in our method of calculating for the springs, and that therefore… | ||
| scan0246 | Suspension tests comparing a Lancia to a Rolls-Royce, focusing on the effect of rear overhang and spare wheels. | ||
| View original record | To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to OY. Y8410 Hs/Rml/LG20.9.26. SUSPENSION. X4048 We have always been under the impression that the Lancia owed a great deal of its… | ||
| scan0247 | Bar chart comparison of riding comfort tests at 40 MPH, analysing the effect of spare wheels on a Lancia and comparing riding characteristics with a Phantom. | ||
| View original record | HIGH SPEED RIDING COMFORT TESTS 40. M.P.H. EFFECT OF SPARE WHEELS ON THE LANCIA CAR TYRE PRESS 40 & 45 LBS./D" REAR SEATS SPARE WHEELS ON - 55 C.C. SPARE WHEELS OFF - 89 C.C. FRONT SEATS. SPARE WHEELS… | ||
| scan0248 | Letter from Melbourne detailing various chassis and engine complaints and suggesting improvements. | ||
| View original record | X8410 c/o Messrs. All British Motor Co.Pty.Ltd. 109-113 Russell Street, MELBOURNE. Pt.6/FP 6-10-26 Hs/Derby. I am in receipt of your Hs/LG 19/7/26, for which I thank you, and in reply to which please… | ||
| scan0249 | Cover letter forwarding information on suspension and detailing corrections for a suspension report. | ||
| View original record | X8410 To Hm. from Hs/Rn. Hs/Rm3/LG6.10.26. TECHNICAL INFORMATION. X4572 X8410 Herewith copies of technical information on Suspension, together with tracings and spare blue prints. These reports should… | ||
| scan0250 | Technical comparison of the riding quality between a Silver Ghost and a Phantom vehicle. | ||
| View original record | E DA. COPY. X8410 OY13-E-111026. To R. from OY. c. to Hs. Re. RIDING QUALITY. X3900 X5440 X8410 We have recently done some interesting work in comparing two cars at the Works with regard to their… | ||
| scan0251 | Principles of suspension, oscillation, and pitching speed in different car models. | ||
| View original record | contd :- -2- and of the Silver Ghost 4080 lbs. this result surprised us at first. But if one draws a circle of 4 ft. radius from the c.g. on the outline drg. of the Silver Ghost [xxxx] car, one can… | ||
| scan0252 | Continued report on vehicle suspension dynamics and the effects of various modifications. | ||
| View original record | contd :- -3- (5) The ratio k²/ab (for the sprung weight only) on the two cars we were testing ran from .455 to .53, the latter when a 200 lbs. trunk was added at the back. Corresponding pitching… | ||
| scan0253 | Vehicle spring stiffness, ride quality, and oscillation characteristics, with suggestions for further investigation. | ||
| View original record | contd :- -4- (12) This gave us a total spring stiffness of 32-1/2% of the normal load. We made a new pair of front springs in which the stiffness when clipped to the axle was 30% of the normal load.… | ||
| scan0254 | Methods to improve the riding and steering qualities of the Phantom model by reducing front wheel weight. | ||
| View original record | To Hs. from R. c. to BJ. Wor. BY. R4/M16.11.26. PHANTOM. X.8770 X.8430 X.8410 The riding and steering qualities can be improved by reducing the weight on the front wheels as follows :- (1).... Short… | ||
| scan0255 | Complaints and recommended alterations for the Phantom model regarding steering, springing, governor, and auto advance. | ||
| View original record | X8410 To Hs. from R. c. to EJ. Wor. c. to BY. R2/M20.11.26. PHANTOM COMPLAINTS. X.4117 X.8430 X.8770 X.8410 X.8140 Confirming our 'phone conversation of this morning. In the memo. I have already sent… | ||
| scan0256 | Steering and braking performance with a new type of front axle. | ||
| View original record | [Handwritten at top] X8410 [Handwritten] FRONT AXLE. V3861 X8470 X3900 To CY. from Hs/Rm. c. Hy. Hs/Rm2/T21.12.26. With reference to yours ref. CY2-E-12826 of the 8th inst. :- (1) We have not found… | ||
| scan0257 | Technical analysis and proposed solutions for wheel wobble and tramping issues. | ||
| View original record | Contd. -2- HS/Rm2/T21.12.26. the cross steering tube, and that you do not try to fit front springs of the maximum flexibility. (2) We have never experienced a case of tramping that was not connected… | ||
| scan0258 | Potential remedies for steering issues like 'wobble' and 'tramping', and for curing brake squeaks. | ||
| View original record | Contd. -3- Hs/Rm2/T21.12.26. are very susceptible to variation in the carcass stiffness. You should have no spring controlled movement in the cross steering tube, just a few thousandths of an inch to… | ||
| scan0259 | Calculations and specifications for front springs to lower a vehicle. | ||
| View original record | FRONT SPRINGS. 10 EX. 78410 Requirements. 25% stiffer springs to lower the front of the car .5" WT of front of the car empty. 2457 LBS. Unsprung wt. 460 LBS. Total empty sprung wt 1997 Two pass… | ||
| scan0260 | Springing and hydraulic shock dampers for continental touring. | ||
| View original record | X8410 c. Hs. BY9/H. 21.1.27. SPRINGING FOR CONTINENTAL TOURING. Referring to PN's remarks handed on, incorporated in Whrl/FP.20.1.27. it was fully appreciated at the works that the hydraulic shock… | ||
| scan0261 | Agreement with contentions on chassis inertia and spring periodicity affecting riding qualities. | ||
| View original record | To Hs. from DA. x8410 DA2/M31.12.26. X. 8770 X. 8410 X. 8260 Thank you for sending me a copy of OY13/E/11.10.26. As a matter of fact R. passed us his copy some little while ago, and we reported that… | ||
| scan0262 | Order for two front springs for Chassis 10-EX with specific camber and rating details. | ||
| View original record | To Wd/Ms. from Hs/Rm. 78410 Hs/Rm1/LG2. 2.2.27. Will you please order for us two front springs for Chassis 10-EX to the following specification. Unloaded camber 1.30". Rating 440 lbs/1". Otherwise as… | ||
| scan0263 | Spring suspension, including issues with 'pitching', carrying spare wheels on the Phantom, and testing Westinghouse air springs. | ||
| View original record | To OY. from Hs/Rn. x8410 Hs/Rn3/LG7.2.27. RE. SPRING SUSPENSION. x3900 x4000 With reference to your letter of the 26th.ult. (a) We were very interested in your remarks on suspension, particularly with… | ||
| scan0264 | Decision on rear spring clearances for vehicles intended for Continental use. | ||
| View original record | S/W. Hs. X8410 CWB8/GM/12-2-27. SPRINGING FOR CONTINENTAL USE. With reference to your memorandum "Suspension" Hs/RMl/LG28826 and the blue prints of spring dimensions on page 24(a) have you yet come to… | ||
| scan0265 | Accompanying a blueprint for a proposed alteration to the Continental rear springs. | ||
| View original record | To CWB. from Hs/Rm. XP410 Ha/Rml/LG14.2.27. CWB8/GM12.2.27. X8410 Herewith blueprint of the proposed alteration to the Continental rear springs which we think will provide the necessary buffer… | ||
| scan0266 | Blueprint detailing specifications for four different front and rear road springs. | ||
| View original record | CONDITIONS FOR SPAIN, PORTUGAL, ITALY POLAND & RUSSIA, AUSTRALIA, NEW ZEALAND SECTION 1 (Top Left): Header: BRAZIL & S. AMER, AUSTRIA, EGYPT Title: — 20 H.P. FRONT ROAD SPRING — Part Number: F.53583… | ||
| scan0267 | The material and finish of road spring bushes. | ||
| View original record | X8410 D/BP. c. HS. BY14/H. 10.3.27. ROAD SPRING BUSHES. ----------------- Referring to D/BP/Y518/H.7.3.27. please note that the bushes in question should be sent into this Department. The issue is… | ||
| scan0268 | Suitability of car springs for the Spanish market. | ||
| View original record | S/W. (Copy to Hs). X8410 Sg10/W/10.3.27. Re: Springs for Spain. You will remember that at the recent Derby Conference, this matter was discussed and it was suggested it would be advisable for Rv. to… | ||
| scan0269 | Letter discussing customer complaints and engineering challenges regarding car springs for vehicles used in Spain. | ||
| View original record | Sa. (Madrid). (Copy to Rv. Madrid Depot). Sg12/H/25.2.27. Re: Springs for Spain. You will remember when you were over here, you intimated that we were sending Cars incorrectly sprung for Spain and… | ||
| scan0270 | Car springing issues and solutions for vehicles in Spain. | ||
| View original record | Sg. (Copy to EP) Rv1/AGL.3.27. Re: Springing of Cars for Spain. With reference to your Sg12/W/25.2.27. on receiving this, I tried to collaborate with Sa. on the matter but at present, he is away from… | ||
| scan0271 | Suggestion for modifying car suspension and shock absorbers for vehicles being sent to Spain. | ||
| View original record | - 2 - Do you think that any improvement could be made by carrying out my suggestion? After correctly springing car for England, afterwards add 5% to each spring and also fit double shock absorbers for… | ||
| scan0272 | Configuration of springs and hydraulic dampers for cars destined for Spain. | ||
| View original record | w/s Sg. c. BY. c. Hs. c. Rv. Madrid. K8416 EP1/H11.3.27. RECEIVED MAR 11 1927 re. SPRINGS FOR SPAIN. We have this morning received your Sg10/M/10.3.27. Rv's memo, reference Rv1/Ag.1.3.27. together… | ||
| scan0273 | Issues with car springs supplied for use in Spain. | ||
| View original record | X84110 W/e. Dg. c. Hs. (Further copy as requested) BY1/H. 11.3.27. ---------------- SPRINGS FOR SPAIN. ------------------- We have already written fully on this subject, through sP. I think the memo… | ||
| scan0274 | Proposals for stiffer springs for various markets due to differing road conditions. | ||
| View original record | - 2 - BY1/H. 11.3.27. ------------------ I have put forward certain definite proposals in BY8/H.9.3.27., and providing these proposals are definitely agreed to in conference by the people responsible,… | ||
| scan0275 | Specification of car springs for the Spanish market. | ||
| View original record | X82410 S/W. [crossed out] Copy to EF " " HS " " Pr Sg14/W/14.3.27. Re: Springs for Spain. X2628 X94HJ Thanks for BY1/Hl1.3.27. I have received via EP. copy of your BY8/H9.3.27. to him on the above… | ||
| scan0276 | Standardizing car spring stiffness for different markets, particularly Spain. | ||
| View original record | - 2 - sure on reflection, you will agree is quite an impossible position for us to adopt, because, as Motor Car Manufacturers, our Cars must be capable of being used under either conditions without… | ||
| scan0277 | Complaint about uncomfortable road springs and proposing alternative stiffness. | ||
| View original record | To Hs. from Hs/Rm. ROAD SPRINGS. You will see by the enclosed that BY. has successfully attached the blame for the somewhat peculiar 20% stiffer springs to Sales. DA. wont do anything because he says… | ||
| scan0278 | Issues with road spring stiffness, a customer complaint about ride quality, and a proposed solution. | ||
| View original record | 4810 To Hs. from Hs/Rm. Hs/Rm3/LG15.3.27. ROAD SPRINGS. You will see by the enclosed that BY. has successfully attached the blame for the somewhat peculiar 20% stiffer springs to Sales. DA. wont do… | ||
| scan0279 | The history and issues with supplying car springs for the Spanish market, refuting points from a previous memo. | ||
| View original record | c. EP. c. Hs. SPRINGS FOR SPAIN ----------------- We have already written fully on this subject through EP. I think the memo is probably by this time in your possession. In regard to the points raised… | ||
| scan0280 | Proposals for stiffer springs and the need to reconsider car setups for specific international markets. | ||
| View original record | - 2 - BY1/H. 11.3.27. I have put forward certain definite proposals in BY8/H.9.3.27., and providing these proposals are definitely agreed to in conference by the people responsible, I am prepared to… | ||
| scan0281 | Investigation into the function and issues of 20% stiffer rear springs for continentally sprung cars. | ||
| View original record | X8440 Please return To BY, from Hs/Rm. c. to Da. c. to Wor. Hs/Rml/LG28. 2.2.27. REAR SPRINGS - CONTINENTALLY SPRUNG CARS. X8440 X2628 Some time ago we took up the question of buffer clearance on the… | ||
| scan0282 | Spring and buffer issues causing broken frames, comparing cars set up for Continental versus English roads. | ||
| View original record | contd :- -2- fitted with normal 2000 lbs. springs will hit the buffers when the static load is increased by 520 lbs. The substitution of 20% stiffer springs will reduce this static load to 353 lbs.… | ||
| scan0283 | Policy on fitting 20% stiffer springs for cars intended for Spain. | ||
| View original record | (COPY) S/W. Copy to EP. Rv. Madrid Depot. RE: SPRINGS FOR SPAIN. Thanks for BY1/Hl1.3.27. I have received via. EP. copy of your BY8/H9.3.27. to him on the above subject. I have noted your remarks… | ||
| scan0284 | Adjusting spring stiffness for cars in Spain and other Continental countries. | ||
| View original record | -2- Contd. modern use of a motor car is for all purposes and they are not kept for use separately in town or country, as may have been the case formerly. As a basis for discussion in regard to Spain,… | ||
| scan0285 | Stiffness and application of front and rear road springs for different driving conditions and markets. | ||
| View original record | X8410 w/D.Sg. (crossed out) c. Hs. BY10/H. 15.3.27. ROAD SPRINGS. ---------- Referring to Sgl4/BM.14.3.27. there will be no value in holding a conference with Wor. and Hs. absent from Derby. When they… | ||
| scan0286 | Modifications to front spring designs for Australian road conditions. | ||
| View original record | x8410 Whr. Ptl/WP.18.3.27. Re: Springing So far as springing for Australian road conditions is concerned I honestly think that it is not so much strength of springs that matters as the need for a… | ||
| scan0287 | Page 2 of a report detailing the construction, benefits, and real-world testing of an improved leaf spring design. | ||
| View original record | -2- The result of this construction is that there is no marked increase in the strength or stiffness of the main spring when merely carrying the load or running slowly over good roads where the… | ||
| scan0288 | Design of road springs for 40/50 & 20 HP chassis, favouring a simpler rivetted clip design. | ||
| View original record | To Hs. BY. DA. from R. c. to BJ. X8410 R1/M5.4.27. 40/50 & 20 HP. CHASSIS. *X.8410 ROAD SPRINGS. X.5410 You will remember that I have for some time favoured a superior design of simple rivetted on… | ||
| scan0289 | Design and adoption of a rivetted-on spring clip for the 40/50 HP and 20 HP models. | ||
| View original record | XSHWO De. c.Hs. c.H.J. BY5/H. 11.4.27. SPRINGS - 40/50 HP. & 20 HP. Referring to R1/M.5.4.27. we take it you will supply us with a design for a rivetted-on clip to take the place of the proposed… | ||
| scan0290 | Poor riding qualities of a car with a French body, following Mr. Brewster's visit. | ||
| View original record | To Hs. LHS. from R. BY. c. to Mr. Brewster. c. to Col. Hawkins. X8410 R2/M15.4.27. MR. BREWSTER'S VISIT - RE. RIDING QUALITIES OF CARS GENERALLY. X8830 X4565 I was extremely sorry Mr. Brewster had… | ||
| scan0291 | Summarizing experimental work on chassis improvements, specifically regarding suspension and brakes for the 40/50 HP model. | ||
| View original record | To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to DA. BY. X8410 Hs/Rm1/LG26.4.27. CHASSIS IMPROVEMENTS. X5770 At the present moment we have practically completed experimental work on the designs… | ||
| scan0292 | Report discussing issues with front brakes, steering on the Phantom, and the petrol supply from the Autovac system. | ||
| View original record | contd :- -2- front brake jaggers cannot occur, the section of the front drums might be stiffened somewhat to reduce distortion and thus increase the period which can elapse before brake adjustment is… | ||
| scan0293 | Technical memorandum discussing chassis improvements including lubrication, front springs, lowering, and weight reduction. | ||
| View original record | contd :- -3- mechanically operated suction pump would be a great asset in this connection. LUBRICATION. We are anxious to reduce the number of lubrication points on the chassis. On 10-Ex we shall in… | ||
| scan0294 | Technical memorandum detailing issues with the 20 HP car's suspension, brakes, steering, and other common problems. | ||
| View original record | contd :- -4- 20 HP. SUSPENSION. The main difficulty with the 20 HP. front springs is that if they give comfortable riding at low speeds the car crashes almost continuously on the buffers at high… | ||
| scan0295 | Design and proposals for riveted-on road spring clips for the 40/50 and 20 HP models. | ||
| View original record | To BY. from DA. c. to BJ. Hs. X8410 DA1/M3. 5. 27. ROAD SPRINGS (CLIPS) X3854 X1333 x5410 With reference to the riveted-on clip which you are asking for, R. wishes to make one which exactly resembles… | ||
| scan0296 | Weight saving on the Phantom's front end by modifying the front springs and wing irons. | ||
| View original record | To Hs. from R. c. to BJ. c. to LHS. c. to BY. X8410 R8/M3. 5. 27. PHANTOM - SAVING OF WEIGHT ON FRONT END OF CAR - FRONT SPRINGS. X. 8410 X. 8420 DA/EV. informs me that the present coach-builder's… | ||
| scan0297 | Proposal to modify the 40/50 HP chassis springing for European countries, making them 5% stronger. | ||
| View original record | Hs RECEIVED MAY 7 1927 W/S. CWB. S.E. W/O. E.G. Mr. H. BY/AHS. c.Hs. Seeley/EH. 48410 BY2/H. 6.5.27. 40/50 HP. CHASSIS. SPRINGING. In regard to our conversation of yesterday afternoon, we propose to… | ||
| scan0298 | Revised springing schemes for Continental, Russian, and Colonial markets. | ||
| View original record | HS. X8410 S/W. By. Copy to:- C. Sg. Hs. Hm. CWB5/GM/9-5-27. 40/50 HP. SPRINGING. Thank you for your By2/H6.5.27. Proposals of this memo are entirely satisfactory to Sales and it is hoped that it will… | ||
| scan0299 | Modifying the 40/50 HP springing for Australian and Colonial conditions. | ||
| View original record | X8410 Hs RECEIVED MAY 20 1927 W/S. GWD. C.W/S. Sg. c.Hs. C.Hm. C.Pt. C.EP. c.BY/Hse. BY2/H. 10.5.27. 40/50 HP. SPRINGING. Referring to CWB5/GN.9.5.27. and further to BY2/H.6.5.27. which is hereby… | ||
| scan0300 | Supplying different strength springs for testing in various countries with poor road conditions. | ||
| View original record | - 2 - BY2/H. 10.5.27. In order that Pt. should be able to judge for himself whether anything less than this would be workable, it was suggested that we should supply two sets of springs, as follows:-… | ||
| scan0301 | Recommendations for stiffer car springs for Australian conditions. | ||
| View original record | To BY. from Hs/Rm. To DA. c. to EP. Pt. c. to Wor. CWB. c. to Sg. 48410 Hs/Rm2/LG10.5.27. SPRINGS FOR AUSTRALIA ETC. With reference to BY2/H10.5.27. As a result of our accumulated experimental… | ||
| scan0302 | Technical memo proposing two alternative rear spring setups for the 40/50 HP model, specifically for the Australian market. | ||
| View original record | To DA. from Hs/Rm. c. to BY. EP. c. to Pt. Wor. c. to CWB. Sg. HM Hs/Rml/LG10.5.27. SPRINGS FOR AUSTRALIA ETC. REAR SPRINGS - 40/50 HP. We understand from Pt. that the main trouble experienced in… | ||
| scan0303 | Front spring specifications for the 40/50 HP and 20 HP models, comparing British and Australian conditions. | ||
| View original record | contd :- -2- FRONT SPRINGS - 40/50 HP. We consider that the front springs should be arranged to have the same 50% increase of static load to the buffer as the rear springs. This means that front… | ||
| scan0304 | Ordering trial springs for Australia and modifying specifications based on a recent conference. | ||
| View original record | [STAMP] RECEIVED Hs MAY 11 1927 [Handwritten] X8LHO [Distribution list - all crossed out] W/s CWB. s.Rg. c.Hs/Rm. c.ET. c.LG. --------------- BY4/H. 11.5.27. --------------- SPRINGS FOR AUSTRALIA.… | ||
| scan0305 | Three standards of springing for different global markets and plans for further classification and testing. | ||
| View original record | S/W. By. Copy to:-C Sg. Hs. Hms. EP. Whr. Y8410 Hs CWB10/GM/12-5-27. 40/50 H.P. SPRINGING. I have received your By2/H10.5.27 and By4/H11.5.27 also Hs.Rm/LG10.5.27 and Hs.Rm2/LG10.5.27. on the above… | ||
| scan0306 | Seeking clarification on spring specifications and terminology for the Australian market. | ||
| View original record | To Hs/Rm. from DA. X8410 DAL/M13.5.27. SPRINGS FOR AUSTRALIA, ETC. X. 8410 X. 8990 We thank you for your Hs/Rml/LG10.5.27. We will go into the points you raise and send you some information in the… | ||
| scan0307 | Spring specifications and testing for cars destined for Australia. | ||
| View original record | To DA. from Hs/Rm. +8410 Hs/Rm2/LG18.5.27. SPRINGS FOR AUSTRALIA. +8990 With reference to your DA1/M13.5.27. We regret that our memo. was so confusing. (1) Elucidating the points in question. Since… | ||
| scan0308 | Proposals for producing and fitting modified front and rear springs for a car in Australia. | ||
| View original record | Hs RECEIVED MAY 23 1927 X8410 W/S. CWB. C.Pt. c.Hs. G.BY/HWB. BY10/H. 20.5.27. AUSTRALIAN SPRINGS. ------ With reference to the recent conference, and the proposals resulting from same, by which we… | ||
| scan0309 | Cancellation instruction for a special pair of rear springs for an Australian chassis. | ||
| View original record | Order Office C - Rms x8440 D/EP19/AT/25.5.27. Re:- Chassis 47-AU - Australia. We are advised by Pt. that the instructions issued under paragraph "B" for a special pair of rear springs to Drawing… | ||