Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Index page for a report on the fundamentals of car performance, specifically related to tyres. | ||
| View original record | X4565 FUNDAMENTALS OF CAR PERFORMANCE. X20 / X4050 TYRES. I: THE EFFECT OF TYRES ON STEERING. a. Out of truth and out of balance tyres. b. High speed wobbles. (i) Tyre pressure. (ii) Tyre size. (iii)… | ||
| Scan002 | The fundamentals of car performance, focusing on the effect of tyres on steering. | ||
| View original record | FUNDAMENTALS OF CAR PERFORMANCE - TYRES. I: THE EFFECT OF TYRES ON STEERING. (a) Out of truth and out of balance tyres. With the advent of low pressure tyres, steering susceptibility to small defects… | ||
| Scan003 | High-speed wobbles, focusing on the effects of tyre pressure and tyre size. | ||
| View original record | contd :- -2- (b) High speed wobbles. (1) Tyre pressure. The main factor within the control of the customer in this connection is the tyre pressure. The higher the tyre pressure, the less the… | ||
| Scan004 | High-speed wobbles (shimmy), focusing on tyre tread pattern, irregular tyre wear, and rear tyre inflation pressure. | ||
| View original record | contd :- -3- (III) Tyre tread pattern. High speed wobbles depend for their maintenance upon the grip between the tyre and the road. Thus on a road where a skid is likely to occur we find that 'shimmy'… | ||
| Scan005 | Tyre pressure recommendations, steering stability, and wobble effects. | ||
| View original record | contd :- -4- amount of comfort. We find that this practice affects the steering in-so-much as it gives the car a feeling of instability at high speeds commonly called 'wandering'. In consequence we… | ||
| Scan006 | Page discussing factors affecting tyre wear, including temperature, road conditions, and tyre types. | ||
| View original record | contd :- -5- Knowing all we do about this phenomenon in the way of correct pivot lean and friction in the steering, no trouble should arise with the balloon type of tyre. The simplest retrospective… | ||
| Scan007 | Report discussing tyre wear issues and the effect of tyre inflation pressure on petrol consumption, including a performance graph. | ||
| View original record | contd :- -6- tread makes the tyre ride very harshly when new. In addition, on the Rapson double-tread tyre, when the first tread is finished, it comes off in a series of large pieces which hit the… | ||
| Scan008 | Two graphs comparing rolling resistance and distance rolled from rest for two different tyre types at various inflation pressures. | ||
| View original record | contd :- -6a- GRAPH 1: MACHINE TESTS ON ROLLING RESISTANCE FIG 1. SPEED 50 M.P.H ROLLING RESISTANCE LBS WT/TN INFLATION PRESSURE LBS/SQ IN. 33 x 6.75 TYRE 33 x 5 TYRE GRAPH 2: DISTANCE ROLLED FROM… | ||
| Scan009 | The effects of tyre temperature and inflation pressure on rolling resistance and fuel consumption. | ||
| View original record | contd :- -7- between the tyre at the two inflation pressures illustrated in this test. Hence it may be said that the increase in petrol consumption due to fitting balloon tyres will not be more than… | ||
| Scan010 | Analysis of the riding characteristics and benefits of balloon tyres at various speeds. | ||
| View original record | contd :- -8- should be taken to allow the tyres to warm up before beginning fuel measurement. The appended curve shews the decrease in rolling resistance occasioned by the increase in the temperature… | ||
| Scan011 | Comparison of high pressure and balloon tyre circumferences and pressures for 20 HP and 40/50 HP models. | ||
| View original record | contd :- -9- corresponding high pressure tyre. Thus for the 20 HP. and 40/50 HP. sizes we have :- [TABLE] EFFECTIVE CIRCUMFERENCE 10 M.P.H: INS. | | 40/50 HP. | 20 HP. | High pressure. | 105.8" |… | ||
| Scan012 | Graph showing the increase in effective radius of tyres at speed, alongside a discussion on tyre noise. | ||
| View original record | contd :- -10- INCREASE IN RADIUS - INCHES GRAPH TEXT: INCREASE IN EFFECTIVE RADIUS OF 33 X 6.75 DUNLOP CORD BALLOON TYRE LOAD ON TYRE -1120 LBS. INFLATION PRESSURE 30 LBS/SQ IN LOWER CURVE LABEL: 33 X… | ||
| Scan013 | Tyre tread characteristics, directionality, and the non-skid properties of balloon tyres as they wear. | ||
| View original record | contd :- -11- customers should be warned of this characteristic as it is for this reason that RR. have rejected the triple stud tread in spite of its undoubted advantages for absence of skidding. A… | ||
| Scan014 | Specification drawing for Dunlop tyres and well base wheels, including dimensions and pressures. | ||
| View original record | THIS TYPE OF TYRE IS NOT RECOMMENDED FOR ROLLS ROYCE CARS NEITHER THIS TYPE OF TYRE NOR TREAD IS RECOMMENDED FOR ROLLS ROYCE CARS Tyre 1: 20 LBS/SQ IN 7.30" x 34" A: 8.0" B: 8.8" C: 112.5" (UNDER NO… | ||
| Scan015 | Tyre recommendations between high and low pressure for a high-speed chassis. | ||
| View original record | To BY. from Hs/Rm. c to C, Pm, C.W.B. TYRES. In connection with the chassis ordered specifically for high speed work, we consider that the customer should be advised to have high pressure tyres as we… | ||
| Scan016 | Receiving experimental triple stud tyres from Dunlop for testing on the 40/50 HP Chassis. | ||
| View original record | Hs. Y4565. BY/Mtnl2/G.20.1.27. [STAMP: RECEIVED JAN 21 1927] 40/50 HP. CHASSIS. The Dunlop Rubber Co. informed us on the telephone yesterday that they were sending six inner tubes for balloon tyres… | ||
| Scan017 | Testing of new, quieter Dunlop tyres with a modified triple stud tread. | ||
| View original record | To PH. From Hs. c.c. to GWB. c.c. to O. X4565 Hs6/LGH.2.27. DUNLOP TYRES. We have been running on an experimental car a set of Dunlop 6.75" tyres which have a modified triple stud tread. These treads… | ||
| Scan018 | Confirming receipt of a set of Dunlop tyres for testing and advising a switch to the standard pattern. | ||
| View original record | S to W. Hs. X4565 CWB2/CP2.2.27. Dunlop Tyres. Reference Hs6/IGL.2.27. I have now received the set of tyres referred to and we will take the earliest possible opportunity of using them and letting you… | ||
| Scan019 | Use of high-pressure tyres for high-speed work on the New Phantom. | ||
| View original record | +4565 S/W. Hs. CWB2/GM/5-2-27. New Phantom. Use of high pressure tyres for high speed work. In a recent memo you advised that it was desirable to use high pressure tyres, presumably allied to the rim… | ||
| Scan020 | Use of high-pressure balloon tyres for high-speed work, comparing them to straight-sided covers. | ||
| View original record | To CWB. from Hs/Rm. X4565 Hs/Rm2/LG7.2.27. USE OF HIGH PRESSURE TYRES FOR HIGH SPEED WORK. With reference to CWB2/GM5. 2. 27. If customers could be relied upon to keep their 6.75" balloon tyres pumped… | ||
| Scan021 | Telegram regarding an assumption about the use of high-pressure tyres. | ||
| View original record | Hives Roycar Derby. Re 10 ex we assume that only high pressure tyres will be used wire confirmation. Evernden | ||
| Scan022 | Covering memo attaching a self-explanatory document from Paris concerning a request for credit. | ||
| View original record | ROLLS-ROYCE LTD. DERBY X4565 C.to Hs. My/WAB/TS3/ES.22.2.27. We attach hereto copy of memo. we received from Paris which is self explanatory. This memo. will no doubt assist in disposing of Request… | ||
| Scan023 | Sale of scrap rubber from experimental chassis and a request for an invoice. | ||
| View original record | P/W. COPY. SLA/Wm/CM. 18.2.27. To My from S1. Re Chassis 11-EX, 12-EX, 8-EX Will you please note that we have sold amongst other Scrap Material some old covers, balloon ditto, and tubes ex above… | ||
| Scan024 | Performance impact of low pressure tyres and the need for experimental testing. | ||
| View original record | Hs FEB 28 1927 RECEIVED X4565 HS. BY11/H. 28.2.27. LOW PRESSURE TYRES. Referring to Sg5/M.26.2.27. attached, I do not see how it is possible to make any intelligent reply to this in the absence of… | ||
| Scan025 | Possibility of fitting Low Pressure (Balloon) Tyres to existing 'Phantom' Chassis. | ||
| View original record | S/W. BY [REDACTED] SG5/W/26.2.27. Re: Low Pressure Tyres. We are constantly receiving applications from existing Owners of 'Phantom' Chassis, for Balloon Tyres. We are unable, as you know, to take… | ||
| Scan026 | Technical memo detailing tests and recommendations for balloon tyres. | ||
| View original record | CERTIFICATE OF INSPECTION To Sg. from Hs/Rn. c. to BY. c. to Bs. Hs/Rm1/LG4. 3. 27. ROLLS ROYCE ENGINES AND SPARES X4565 BALLOON TYRES. X4565 X457 We have conducted tests with balloon tyres on… | ||
| Scan027 | Query regarding the suitability of fitting Balloon tyres to existing 20 HP cars. | ||
| View original record | Handwritten: Reduction of Lock? Handwritten: X4565 S/W. Hs. Sg3/W/9.3.27. BALLOON TYRES. Many thanks for Hs/Rml/LG4.3.27. We are advising all concerned in regard to this matter. We should be glad to… | ||
| Scan028 | Experimental testing of balloon tyres on straight-sided rims for the 20 HP model. | ||
| View original record | To Sg. from Hs/Rn. c. to BY. c. to Bs. X4565 Hs/RnL/LG10.3.27. BALLOON TYRES. We have never tried balloon tyres on straight sided rims on the 20 HP. Therefore, while we can see no objection to their… | ||
| Scan029 | Modifications required to fit low pressure balloon tyres to a Silver Ghost chassis. | ||
| View original record | RECEIVED 17 APR 1927 Hs w/o (c). c. to Hs. +4565 BY12/G.15.3.27. LOW PRESSURE TYRES ON SILVER GHOST CHASSIS. ---------------------------------------- In reply to C7/C10.3.27. we are quite in agreement… | ||
| Scan030 | Modifications for a Silver Ghost chassis without front wheel brakes, detailing changes to wheels, steering lock, and shock dampers. | ||
| View original record | - 2 - BY12/G.15.3.27. SILVER GHOST CHASSIS WITHOUT F.W.B. 1/- The new wire wheels with wellbase rims will fit existing hubs without alteration. 2/- The left hand lock angle should be altered from 41°… | ||
| Scan031 | Note regarding experimental tests on wheels and tyres for a chassis. | ||
| View original record | - 3 - BY/12/G.15.3.27. sided wheels, but experimental tests will be carried out before this equipment can be agreed to, as the present standard tyres which we use on wellbase rims for this chassis are… | ||
| Scan032 | Feasibility of using balloon tyres on the 20 HP model. | ||
| View original record | X4565 S/W. Hs. Copy to:- EP. CWB11/GM/15-3-27. USE OF BALLOON TYRES ON 20 H.P. Present standard of tyre on 20 h.p. is 5¼" medium pressure tyre on 21 by 4½ well base rim. Messrs. Dunlops also supply a… | ||
| Scan033 | Speedometer accuracy when fitting low-pressure tyres to a Silver Ghost chassis. | ||
| View original record | To HY. from Hs/Rn. c. to C. +4565 Hs/Rn4/LG16.3.27. LOW PRESSURE TYRES ON SILVER GHOST CHASSIS. With reference to EY12/G15.3.27. You state that the speedometer will read 3 1/2% higher with balloon… | ||
| Scan034 | Testing and fitting of balloon tyres on 20 HP cars. | ||
| View original record | To CWB. from Hs/Rm. c. to EP. BY X4565. Hs/Rm6/LG16.3.27. BALLOON TYRES ON 20 HP. With reference to CWB11/GM15.3.27. We have run 33 X 6" balloon tyres over 10,000 miles on a 20 HP. car. We have no… | ||
| Scan035 | Standardisation sheet for the use of 33 x 6' Balloon Tyres on 20-HP cars. | ||
| View original record | Hs/Rm. V4565 EP4/H17.3.27. re. Use of Balloon Tyres on 20-HP. With reference to CWB11/GM.15.3.27. and your reply Hs/Rm6/LG16.3.27. you will no doubt be issuing a Standardisation Sheet authorising 33 x… | ||
| Scan036 | Query about fitting 33 x 6 balloon tyres to new and already issued 20 HP cars. | ||
| View original record | X4565 S/W C4/C18.3.27 Re Balloon Tyres on 20 h.p. -------- We note from your Ms/Rm6/LG16.3.27 that you have no objection to 33 x 6 balloon tyres being fitted to a new 20 h.p. where specially demanded… | ||
| Scan037 | Parts, costs, and policy for fitting Balloon Tyres to existing 40/50 HP chassis. | ||
| View original record | X4565 S/W. (Copy to HS). Sg11/W/18.3.27. Re: Supplying & Fitting Balloon Tyres on existing 40/50 HP. Chassis. With further reference to previous correspondence, you will recollect you recently advised… | ||
| Scan038 | Effect of fitting 6-inch balloon tyres on the steering of 20 HP cars. | ||
| View original record | To C. from Hs/Rm. 4565 Hs/Rm2/LG19.3.23. BALLOON TYRES ON 20 HP. X4565 X5620 With reference to C4/C18.3.27. 20 HP. cars already issued will not be fitted with the low geared worm and nut. We consider… | ||
| Scan039 | Notice regarding the fitting of friction to the steering on 20 HP cars equipped with balloon tyres to prevent low speed wobbles. | ||
| View original record | To C. from Hs/Rn. X4565 Hs/Rm2/LG22.3.27. BALLOON TYRES - 20 HP. +457 Further to our Hs/Rm2/LG19.3.27. We omitted to mention in this note that friction must be fitted either in the pivots or in the… | ||
| Scan040 | Standardisation of Balloon Tyres on the 20 HP model. | ||
| View original record | S/W. Hs. X4565 Sg5/M/23.3.27. Re: Balloon Tyres on 20 HP. Thanks for Hs/RM2/LG19.3.27. We have noted your remarks and take it that on Chassis with the lower gear worm - i.e. after Chassis No. GHJ.72.… | ||
| Scan041 | Query seeking clarification on the application of previous remarks about balloon tyres for 20 HP chassis. | ||
| View original record | S/W. Hs. Y4565 Sg13/H/25.3.27. Re: Balloon Tyres - 20 HP. Thanks for Hs/Rm2/LG22.3.27. In order that I might be quite clear, I should be glad if you would let me know whether it means that your… | ||
| Scan042 | The requirements for fitting interchangeable tyres to a 20 HP chassis. | ||
| View original record | W/S. (c): c. to Hs. X4565 BY6/G.25.3.27. [STAMP: RECEIVED MAY 26 1927] re FITTING INTERCHANGEABLE TYRES ON EXISTING STRAIGHT SIDED WIRE WHEELS - 20 HP. CHASSIS.… | ||
| Scan043 | Outlining required modifications for luggage grids and gear ratios, with a recommendation on wheel and tyre changes. | ||
| View original record | - 2 - BY6/G.25.3.27. O.K. 6/- The R.R. Luggage Grids will require modifying. 7/ Gear Ratio will be increased. BY. It might be cheaper to change over to well based wheels and tyres, than to carry out… | ||
| Scan044 | Instructions for fitting interchangeable balloon tyres on existing straight-sided wire wheels for 40/50 HP chassis. | ||
| View original record | W/s (a) c. to Hs. c. to EP. V4565 BY1/G.25.3.27. re FITTING INTERCHANGEABLE BALLOON TYRES ON EXISTING STRAIGHT SIDED WIRE WHEELS - 40/50 HP. CHASSIS. Further to BY12/G.15.3.27. we have now looked into… | ||
| Scan045 | Modifications to tyre clearances, cross steering levers, and steering lock angles, with handwritten annotations and questions. | ||
| View original record | - 2 - 1/- The tyre clearances in the wheel arch at the rear will be reduced by 1" and the side clearance on rolling bump will also be reduced, therefore the coachwork will require cutting away at this… | ||
| Scan046 | Difficulties and cost of fitting interchangeable balloon tyres on 20 HP and 40/50 HP chassis. | ||
| View original record | W/S. (struck through) c. to Hs. c. to E.P. (struck through) X4565 BY/29/G.1.4.27. RE FITTING 20 HP. and 40/50 HP. CHASSIS. INTERCHANGEABLE BALLOON TYRES ON EXISTING STRAIGHT SIDED WHEELS. Further to… | ||
| Scan047 | Confirming the return of Dunlop low pressure tyres after trial on a car. | ||
| View original record | tu565 Sg/Hn17/EDI/1. 4. 27. DUNLOP LOW PRESSURE TYRES. Some little time ago you kindly sent us a set of Dunlop covers having the latest pattern buttressed tread for us to try on a Trials car. We duly… | ||
| Scan048 | Instructions on modifications required to fit 33 x 6 Dunlop Balloon Tyres on a 20 HP chassis. | ||
| View original record | W/s. (c). [crossed out] c. to Hs. c. to EP. XL4565 BY/Cgh3/G.13.4.27. re FITTING 33 x 6 DUNLOP BALLOON TYRES ON 20 HP. CHASSIS. ------------------------------------------------------- With reference… | ||
| Scan049 | The calculation of the effective circumference and diameter for a 20 HP car's balloon tyre. | ||
| View original record | A.J.L. Please | ||
| Scan050 | Poor riding quality of a car due to a noisy body and high-pressure tyres, with suggestions for improvement. | ||
| View original record | To Hs. LHS. from R. EV. c. to Mr. Brewster. c. to Col. Hawkins. +4865 +8410 +8830 MR. BREWSTER'S VISIT - RE. RIDING QUALITIES OF CARS GENERALLY. I was extremely sorry Mr. Brewster had such a poor… | ||
| Scan051 | The considerations and costs of fitting low-pressure tyres to existing cars. | ||
| View original record | To R. From Hs. c. to BJ. Wor. c. to BY. LHS. c. to DA. C. X4565 Hs1/LG22.4.27. TYRES ON EXISTING CARS. R2/M15.4.27. X4050 The question of fitting low pressure tyres on to cars running with high… | ||
| Scan052 | Selection of suitable wheels and tyres for the 20 HP model. | ||
| View original record | To Hs. from R. c. to BJ. BY. Da. X5725 X4565 R2/M25.4.27. WHEELS FOR 20 HP. X3725 X5810 X5460 We should not let what Dunlop's say retard us from our endeavours to select a suitable dia, of wheel, and… | ||
| Scan053 | Alteration to the rear tank for increased road clearance. | ||
| View original record | contd :- -2- rear tank has been altered in the sump part to give more road clearance (I believe nearly 1 1/2"). If this is not enough we should alter the tank. Am I to understand that the tank bottom… | ||
| Scan054 | The standardization and sourcing of 6' balloon tyres for a 20 HP model. | ||
| View original record | To C. from Hs. c. to BY. H4865 Hsl/LG27.4.27. 6" BALLOON TYRES FOR 20 HP. With fx reference to C2/C26.4.27. The standardisation sheet for these tyres has been signed by all Officials except BJ. and… | ||
| Scan055 | Re-fitting of low-pressure tyres to company cars and associated modifications. | ||
| View original record | X4565 [Text struck through in red ink]: "Hs" London Copy "HS" Derby "HK" PARIS Ps10/JP.28/4/27 [Handwritten note in red ink on left margin]: HS [Handwritten note in pencil on left margin]: but these… | ||
| Scan056 | Transfer of wheels and tyres from the Chateauroux Garage and an electrical light repair. | ||
| View original record | To Ps. Paris. from Hs/GWH. X4565 Y3842 X4565 Hs/CWH1/LG27.5.27. There are a number of wheels and tyres in the Chateauroux Garage which will not be required and some are 100%. We wish the Paris Depot… | ||
| Scan057 | Company's position on fitting low-pressure tyres to customer cars. | ||
| View original record | To Hm. from Hs. +4565 Hs1/LG31.5.27. AGREEMENT FORM. LOW PRESSURE TYRES. +457. We do not agree with para. underlined in red. Our view as regards low pressure tyres is that we want as many customers as… | ||
| Scan058 | Blueprint showing the inflated section of a 31'x6.00' S.S. Balloon Buttressed Triple Block tire. | ||
| View original record | REVISIONS 5.96 INFLATED WIDTH. 14.52 EFFECTIVE RAD. 31.4 INFLATED DIA. 18.88 DIA. 19.062 DIA. BEAD SEAT. 17.06 DIA. 31"X6.00" S.S. BALLOON BUTTRESSED TRIPLE BLOCK INFLATED SECTION. DUNLOP RUBBER CO… | ||
| Scan059 | Standardisation of 33' x 6' tyres for the 20 HP chassis. | ||
| View original record | RR 755 REVISED (10M) (DE649 9-12-26) 5M. 2/1187. 4565 COMPLETED 22.6.27 STANDARDISATION of CHASSIS PARTS Date 21.3.27 Description of Parts. 33' x 6" TYRES - 20 HP. Origin. Request from Sales.… | ||
| Scan060 | Cover memo for a standardisation sheet detailing an increase in cost. | ||
| View original record | COPY. To Hs. from My/Rb. My/Rb3/N/139A/BJ21.4.27. STANDARDISATION SHEET X.5820/4565 We return herewith the above std. sheet with costs filled in. The increase in cost is due to the information… | ||
| Scan061 | The effect of tyre tread shape and wear on steering effort for 40/50 HP and 20 HP models. | ||
| View original record | t4365. To Hm. from Hs/Rn. c. to BY. c. to CWB. c. to EP. Hs/Rml/LG23.6.27. 40/50 HP. AND 20 HP. STEERING. X. 8430 X. 5430 X. 4050 X. 4565 We recommend that the following note is circulated to all… | ||
| Scan062 | Internal enquiry regarding the lifespan of low-pressure balloon tyres compared to high-pressure tyres. | ||
| View original record | S/W Hs. Y4565 C26/C24.6.27 Re Low Pressure Tyres. ---------- We are getting a certain number of enquiries from owners of existing cars as to the cost of converting their cars to balloon tyres. Two or… | ||
| Scan063 | Chasing a reply regarding low pressure tyres before an upcoming sales conference. | ||
| View original record | S/W Hs. X4565 C1/D8.7.27. Re LOW PRESSURE TYRES. ------- I cannot trace having received a reply to my memo. O26/C24.6.27 (copy attached). I should be glad to have a reply before the next Sales… | ||
| Scan064 | Internal enquiry regarding the lifespan of low-pressure balloon tyres versus high-pressure tyres. | ||
| View original record | S/W Hs. C26/C24.6.27 . Re LOW PRESSURE TYRES. ------- We are getting a certain number of enquiries from owners of existing cars as to the cost of converting their cars to balloon tyres. Two or three… | ||
| Scan065 | Low-pressure tyres, confirming no change in opinion since a previous communication. | ||
| View original record | To C. from Hs/Rm. 74565 Hs/Rm2/LG8.7.27. LOW PRESSURE TYRES. +8430 With reference to C1/C8.7.27. This matter was fully treated in our Hs2/LG6.10.26. We have not had any experience since then which has… | ||
| Scan066 | Testing, steering performance, and mileage of low-pressure tyres on Phantom experimental cars. | ||
| View original record | C O P Y. To BJ. from Hs. c. to R. Wor. c. to BY. PN. LOW PRESSURE TYRES ON PHANTOMS. Replying to BJL/E23.9.26. The steering on 8-EX car was identical to that fitted to 12-EX except for one… | ||
| Scan067 | Performance and experience with low pressure tyres. | ||
| View original record | contd :- -2- This is confirmed by Messrs. Dunlops' experience. On experimental cars we have not found the low pressure tyres any more liable to puncture. We have found however that if the car is run… | ||
| Scan068 | Advocating for 19' wheels with 6' tyres on the 20 HP model to improve its appearance. | ||
| View original record | To Hs. from R. c. to BJ. LHB! Wor. c. to BY. CMB. +4565 R2/M9.7.27. APPEARANCE OF 20 HP. X.5770 X.5810 X.5830 X.4365 I am very keen that we press for the 19" wheels with 6" tyres, because they will… | ||
| Scan069 | Improvements to the riding qualities of 40/50 and 20 HP cars. | ||
| View original record | To Hs. from R. X4565 c. to BJ. LHS. c. to FN. Wcr. c. to BY. CWB. RL/M9.7.27. RIDING QUALITIES. X.8410 X.235 X.5410 X.8420 X.4565 X.8840 For improved riding qualities of our cars - both 40/50 and 20… | ||
| Scan070 | Effects of different tyre types and corresponding gear ratios for the 20 HP Chassis. | ||
| View original record | X4565 To Hs. from BJ. Copy to BY. Copy to ROY. Copy to D/BP Copy to Sg. Copy to C. Balloon Tyres on 20 HP Chassis. BJ2/E14/7/27 -------------------------------- The position appears to be as follows:-… | ||
| Scan071 | Inquiring about the availability of 6' tyres for 19' rims for a 20 HP vehicle. | ||
| View original record | X11654 X4565 S/W. Hs. Sg6/W/25.7.27. Re: 19" rims for 20 HP. I have noted with interest from Hs/Rml/LG19.7.27. that you are running a set of wheels with 19" rims. As Dunlop's list does not shew that… | ||
| Scan072 | Experimental 6-inch Dunlop tyres for 19-inch rims. | ||
| View original record | To Sg. from Hs/Rm. X4565 X5800 Hs/Rm7/LG9. 8.27. With reference to Sg6/M25.7.27. The tyres we are using are 6". They are an experimental tyre produced by Dunlops for the 19" rim. Hs/Rm | ||
| Scan073 | Recommendation on tyre fitment for the 40/50 HP model, advising on standard and alternative tyres and warning against high-speed wobbles. | ||
| View original record | X4565 To Hm. from Hs/Rn. Hs/Rm7/LG17.10.27. TYRES. X4565 X987 We recommend that the following information should be forwarded to all Depots :- The 6.75" semi balloon tyre which is at present standard… | ||
| Scan074 | Dunlop memo detailing the results of deflation tests on large tyres. | ||
| View original record | X4565 DUNLOP MEMO. FROM Test House, Fort Dunlop. TO Technical Director, Fort Dunlop. DEPOT. DEPOT. A 34 Ref:- SUBJECT. 17th October .1927. Yours..................... DEFLATION TESTS ON LARGE TYRES.… | ||
| Scan075 | Tests to determine if a deflated 6.75' balloon tyre will detach from the well base rim. | ||
| View original record | To R. from Hs/Rm. c. to EJ. Wor. c. to E. DA. c. to EY. EP. c. to MX. Hm. c. to OY. X4565 Hs/Rml/LG29.10.27. WELL BASED TYRES LEAVING THE RIM. Y3809 We have been making some tests to ascertain whether… | ||
| Scan076 | Tyre performance and safety tests, comparing well-based and beaded-edge tyres. | ||
| View original record | contd :- -2- It very often happens when reversing after a puncture to draw into the road-side. Messrs. Dunlop also demonstrated the fact that a tyre could be burst when rounding a corner at speed… | ||
| Scan077 | Deflation tests conducted on large tyres. | ||
| View original record | COPY. Messrs. Dunlop, Test House, Fort Dunlop. 17th. Oct. 1927. DEFLATION TESTS ON LARGE TYRES. (1) A 33 X 6.75 balloon tyre was fitted to a 5 X 21 w.b. rim on an E2. wire wheel using standard rim… | ||
| Scan078 | Report comparing the average mileage of well base tyres against straight sided cord tyres. | ||
| View original record | To C. from Hs/AJL. c. to SG. BY. 44565 Hs/AJL1/LG17.11.27. TYRE MILEAGE. Y3809 X4565 X44050 We have now used well base wheels and low pressure tyres sufficiently long to be able to give a fair average… | ||
| Scan079 | Request for information on the running radius of high pressure and balloon tyres, to be supplied as MPH at 1000 RPM. | ||
| View original record | HS. FROM DA. X4565 DA1/M23.11.27. X5812 X4050 We have had various information regarding the running radius of high pressure and balloon tyres, but R. would like you to supply this information in the… | ||
| Scan080 | Explaining the variation in tyre rolling diameters and its effect on the effective gear ratio. | ||
| View original record | X. 4565 To DA. from Hs/Rn. c. to BY. EP. c. to E. KY c. to CWB. Hs/RnL/LG3.12.27. Replying to your DA1/M23.11.27. herewith the required information. We have indicated why the rolling diameters of… | ||
| Scan081 | Table detailing road speeds achieved with various tyre types and pressures on different car models. | ||
| View original record | ROAD SPEED WITH VARIOUS TYRES. BALLOON TYRES ARE AFFECTED MORE BY CENTRIFUGAL FORCE THAN HIGH PRESSURE TYRES. FOR THIS REASON THOUGH AT 30 M.P.H. THE BALLOONS GIVE A LOWER GEAR RATIO, AT 60 M.P.H. THE… | ||
| Scan082 | Comparing the noise levels of Dunlop, British Goodrich, and Goodyear tyres during road and bench tests. | ||
| View original record | To R. from Hs/An. c. to BJ. Wor. c. to E. DA. c. to BY. CW'S X4565 Hs/AnL/LG22.12.27. DUNLOP TYRES. X2679 We have repeatedly tried to convince the Dunlop Rubber Co. that their triple stud Balloon tyre… | ||
| Scan083 | Alarming tyre wear and high-speed wobble issues in American cars and a comparison of steering performance. | ||
| View original record | contd :- -2- A point of interest arose in the discussion as to the alarming tyre wear developing on the front wheels of many American cars due to hurried alterations made in wheel toe-in or transverse… | ||
| Scan084 | Depot sheet amending policy on hydraulic shock dampers for low pressure tyres on 20 HP and 40/50 HP chassis. | ||
| View original record | HK. - Paris. Ps. Nice. Bombay. Pt. - Australia. RV. - Madrid. H. - Sales. Barlow Mews. CMB. BR. Br. - N. X4565 Mr. Evans - Lillie Hall. Mr. Reid - Glasgow. Mr. Bowring - School. D.O. - Mr. Walker.… | ||
| Scan085 | Request to arrange for 12 Dunlop spare tyres in France for an upcoming trip. | ||
| View original record | To HK. Paris. From Hs. We shall be bringing a car to France in about 10 days. We want to be certain that spare tyres are available. The tyres we require are Dunlop 33 X 6.75 buttressed tread suitable… | ||
| Scan086 | The difficulty in sourcing 33 x 6.75 Buttress tyres and arranging a new order. | ||
| View original record | "Hs" DERBY X4565 EWP3/VW.20-1-28 In reply to your Hs3/LG18.1.28 which Colonel HAWKINS has passed on to me to deal with I would like to warn you that so far we are unable to get 33 x 6.75 Buttress… | ||
| Scan087 | Critical importance of sourcing a silent tyre, threatening to switch suppliers if necessary. | ||
| View original record | X4565 HS To C. from EJ. Copy to Woz. Copy to Hs. Copy to Sr. Tyres. BJ18/E24.1.28 It appears to me that one of the most important things for us is to find a silent tyre. It is useless to have a silent… | ||
| Scan088 | Tyre noise and the development of a quieter, safer tyre in collaboration with Dunlop. | ||
| View original record | X4565 To B.J. from Hs. c. to C. c. to Wor. c. to Sg. HS3/LG25.1.28. TYRE NOISE. X4565 J4050 With reference to BJ16/E24.1.28. Some time ago we went over to Messrs. Dunlop and saw the Chief of the… | ||
| Scan089 | Letter from Dunlop Rubber Co. regarding the availability of new tyre moulds and covers. | ||
| View original record | DUNLOP RUBBER CO.,LTD. /4865 TELEGRAPHIC ADDRESS: "DUNLOPS.PHONE.BIRMINGHAM" TELEPHONE: BIRMINGHAM CENTRAL 4108. P.B.E. 25 LINES. YOUR REF: OUR REF: Technical Director. FORT DUNLOP ERDINGTON… | ||
| Scan090 | Letter to Dunlop chasing the delivery of anxiously awaited silent tread tyres. | ||
| View original record | X4565 Hs/Rml/LG. Expl: Dept: 31st. Jan. 1928. Messrs. Dunlop, Fort Dunlop, Erdington, Birmingham. Dear Sirs, For the attention of W.M.Paull Esq. We thank you for your letter of the 25th.inst. We are… | ||
| Scan091 | Steering issues related to balloon tyres, recommended pressures, and suspension improvements. | ||
| View original record | W/S. X4865 Whr. from Hs/Rn. c. to BY. c. to WOR. Hs/RnL/LG24. 5. 28. With reference to extract from Fn13/G6. 2. 28. It would be easier for us to reply to this if we knew the speed at which the… | ||
| Scan092 | Issues with steering kick, balloon tyre punctures, and front spring suspension on large car models. | ||
| View original record | Extract from Fn13/G6.2.28. ........... Now I want to discuss with you what we have learnt. I have had complaint after complaint till I am sick of hearing it of the badness of the steering on the big… | ||
| Scan093 | Technical report detailing various vehicle faults including issues with springs, air valves, tappets, and steering. | ||
| View original record | contd :- -2- we should have front springs at least 50 lbs. stronger than present ones. Another trouble we experienced was the continual unscrewing of the air valve and also the top of the float… | ||
| Scan094 | Technical memorandum discussing steering issues with balloon tyres, recommending minimum tyre pressures and suspension improvements. | ||
| View original record | W/S. Whr. from Hs/Rm. c. to HY. 44565 Hs/RmL/LG24.5.28. With reference to extract from Fn13/G6.2.28. It would be easier for us to reply to this if we knew the speed at which the objectionable… | ||
| Scan095 | The spring-loaded cross steering tube, its effectiveness, and retrospective fitment. | ||
| View original record | contd :- -2- With the spring loaded cross steering tube, and side steering tubes fitted with springs F.76726, we cannot understand any serious cause for complaint arising, provided tyre pressures are… | ||
| Scan096 | Letter regarding the question of tyres in India, enclosing the views of 'LK' who is now employed by the Maharaja of Patiala. | ||
| View original record | [Handwritten:] X4565 further to the note from India I left with you before holidays. V you replied to Ry 30.5.28 [Handwritten:] S/W. [Handwritten:] Port India [Typed:] Whr/Ro8/WP.25.5.28 With further… | ||
| Scan097 | From Bombay discussing the unsuitability of balloon tyres for 'Shikar' (hunting) and general use in India. | ||
| View original record | BOMBAY Whr/Ro25/WP.24.5.28 With further reference to our Whr/GS73/AP.21.5.28 we wish to advise you that we have now been afforded an opportunity of discussing with LK. the question of balloon tyres in… | ||
| Scan098 | Letter to Dunlop regarding a complaint from the Marajah of Patiala about balloon tyre performance in tropical climates. | ||
| View original record | X4565- Hs/Rn3/LG. 31st. May 1928. Messrs. The Dunlop Rubber Co.Ltd., Fort Dunlop, Erdington, Birmingham. Dear Sirs, For the attention of Mr. Paull. We have received a complaint from The Marajah of… | ||
| Scan099 | Letter from Dunlop Rubber Co. Ltd. responding to a complaint about balloon tyre failures on a car belonging to the Marajah of Pattiala. | ||
| View original record | X4565 DUNLOP RUBBER CO.,LTD. TELEGRAPHIC ADDRESS: "DUNLOPS, BIRMINGHAM" TELEPHONE: BIRMINGHAM CENTRAL 4108 P.B.E. 25 LINES YOUR REF: OUR REF: WB.7.16 FORT DUNLOP ERDINGTON BIRMINGHAM 1st June 1928.… | ||
| Scan100 | Steering difficulty and wear, escalating the matter to Messrs. Dunlops and Sir Reginald Ford. | ||
| View original record | X4565 +8430 W/S. Whr. from Hs/Rn. c. to BY. Hs/Rn3/LG4. 6.28. With reference to Whr/Ro15/WP2. 6.28. We have replied to the question of steering difficulty in our Hs/Rn1/LG24.5.28. The question of wear… | ||
| Scan101 | Cross-section drawing of an E.W.B 5 wire wheel with a well-base rim, fitted with a Dunlop balloon tyre for a 40/50 HP Phantom. | ||
| View original record | G 75355 APPROX. 1.000 SMALLER DIA, SAME WIDTH, .500 NARROWER TRACK. YELLOW LINES GIVE APPROX. OUTLINE - MICHELIN. 17x50. "CONFORT BIBENDUM". SECTION OF E.W.B 5 WIRE WHEEL WITH WELL-BASE RIM 5" x 21"… | ||
| Scan102 | Letter to the Dunlop Rubber Co. regarding communication with Sir Reginald Ford and a representative in Bombay. | ||
| View original record | X4565 4th. June 1928. X4050 Hs/Rnl/LG. Messrs. The Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. Dear Sirs, For the attention of Mr. W. Bond. 1st. With reference to your letter of the We… | ||
| Scan103 | Extract from a report detailing complaints about balloon tyres and proposing the option of fitting oversize high-pressure tyres. | ||
| View original record | COPY. Extract...... I have heard many complaints of balloon tyres particularly the fact that they are no good for cross country work owing to their liability to puncture easily and so serious do I… | ||
| Scan104 | Customer complaints regarding balloon tyres affecting steering and the recommendation to maintain 40 lbs/sq.in. pressure. | ||
| View original record | To Hm. from Hs. X4565 Hs1/LG4. 6.28. BALLOON TYRES - (For Depot sheet). X8430 We have received complaints that balloon tyres have spoilt the 40/50 steering. We therefore consider that the following… | ||
| Scan105 | Letter from Dunlop Rubber Co. Ltd. regarding permission to discuss tyres for the Marajah of Pattiala. | ||
| View original record | Y4565 DUNLOP RUBBER CO.,LTD. TELEGRAPHIC ADDRESS: "DUNLOP, BIRMINGHAM" TELEPHONE: BIRMINGHAM CENTRAL 4108 P.B.E. 25 LINES YOUR REF: OUR REF: WB.6.66 FORT DUNLOP ERDINGTON BIRMINGHAM 6th June 1928… | ||
| Scan106 | Standardisation and issues with balloon tyres for the 20 HP chassis. | ||
| View original record | X4565 W/S. c. BR. c. Hs. BY2/G.5.7.28. 20 HP. CHASSIS - TYRES. With reference to the standardisation sheet for the 20 HP. balloon tyres having dimensions 33" x 6" suitable for 21" rims, we have… | ||
| Scan107 | Introduction of Balloon Tyres for the 20 HP Chassis. | ||
| View original record | S/W. Copy to Ds Hs V4565 Sg17/W/10.7.28. 20 HP. Chassis - Tyres. We are in receipt of your BY2/G5.7.28. We are anxious to see Balloon Tyres on the present chassis as soon as possible. We understand… | ||
| Scan108 | Pros and cons of different balloon tyre and rim sizes for the 20HP model. | ||
| View original record | [Handwritten top left] V4565 [Handwritten annotation] Actually 6" tyres on 21" rims only raise the car .35" delete gear ratio 2/8% BY.) FROM DA/EV. HS.) sc.) C. to R. BY re. BALLOON TYRES FOR 20HP. It… | ||
| Scan109 | Adoption of low-pressure tyres and suitable wheel sizes for the 20 HP car model. | ||
| View original record | BJ. C. SG. from R. c. to Hs. 4565 R3/M1 2.7.28. RE. PRESENT 20 HP. X.4565 AND LOW PRESSURE TYRES. X.527 X.5820 This car must have low pressure tyres (if not already done), or it will not compare with… | ||
| Scan110 | Letter from Dunlop Rubber Co. Ltd. regarding correspondence with the Managing Director for India about the Maharaja of Patiala's opinion. | ||
| View original record | 4565 DUNLOP RUBBER CO.,LTD. TELEGRAPHIC ADDRESS: DUNLOPS, PHONE, BIRMINGHAM. TELEPHONE: BIRMINGHAM CENTRAL 4108 P.B.E. 25 LINES EXTENSION No. YOUR REF: OUR REF: WB.AGP.R.2.127. FORT DUNLOP ERDINGTON… | ||
| Scan111 | Letter discussing the suitability of Balloon Tyres for cars owned by Indian Maharajas for Shikar (hunting) purposes. | ||
| View original record | COPY. FROM. Managing Director. D.R. Co. (India) Ltd., BOMBAY. TO. W. Bond, Esq., Technical Director's Office, FORT DUNLOP. 13234/X.6. 22nd. June. 1928. ROLLS-ROYCE. DERBY. Dear Mr. Bond, Reference… | ||
| Scan112 | Letter discussing tyre suitability for the Maharaja of Patiala's cars used for hunting. | ||
| View original record | FROM. Technical Director's Office. FORT DUNLOP. TO. Managing Director. D.R. Co. (India) Ltd. BOMBAY. Your ref. 13234/X.6. Our ref. WB.AGP.R.1.127. 12th. July. 1928. (Dict. 11th). Dear Sir Reginald,… | ||
| Scan113 | Dunlop Low Pressure Tyres for India. | ||
| View original record | S/W. X4565 Whr/Ro/AP. 18.7.28. Dict. 17. 7. 28. re Dunlop Low Pressure Tyres for India. With further reference to your Hs/Rm3/LG.4.6.28., we now have pleasure in enclosing a copy of memo Fn5/S28.6.28.… | ||
| Scan114 | Letter from Bombay discussing the suitability of Balloon vs High Pressure tyres, and a new 'Medallion' tyre, for cars used for hunting. | ||
| View original record | COPY. My Dear Wheeler, Bombay, Fn5/S28.6.28. re Balloon Tyres. Following your note with regard to the above, I called on Sir Reginald Ford to ask him whether his personal opinion expressed to me in… | ||
| Scan115 | Letter from Dunlop Rubber Co. concerning discretionary powers for tyre provision and the improved Medallion Tyre project. | ||
| View original record | +4565 DUNLOP RUBBER CO.,LTD. TELEGRAPHIC ADDRESS: "DUNLOPS, BIRMINGHAM" TELEPHONE: BIRMINGHAM CENTRAL 4108 P.B.E. 25 LINES YOUR REF: OUR REF: WB.P.W.11.197 FORT DUNLOP ERDINGTON BIRMINGHAM 19th July… | ||
| Scan116 | Selection of tyres (Balloon, High Pressure, or new Medallion) for a customer in India. | ||
| View original record | COPY OF MEMO FROM :- Managing Director, To - W.Bond, Esq., D.R.Co.(India) Ltd., Technical Director's Office Bombay. Fort Dunlop. 13579/X.6. 27th June 1928. ROLLS-ROYCE, DERBY. Dear Mr. Bond, In… | ||
| Scan117 | Weakness of Dunlop low-pressure balloon tyres under Indian hunting conditions. | ||
| View original record | +4565 To Whr/Ro. from Hs/Rm. Hs/Rml/LG23.7.28. DUNLOP LOW PRESSURE TYRES. X 8430. With reference to Whr/Ro4/AP18.7.28. It is very difficult for us to in any way reproduce Indian conditions on our… | ||
| Scan118 | Potential improvements to vehicle riding qualities. | ||
| View original record | Hs. from R. CWB. c. to BJ. Wor. BY. X4565 R1/M23.7.28. RIDING QUALITIES. X.4565 X.1360 X.5820 X.235 X.5410 I hope to receive shortly a report shewing improvements due to :- (1) 6" low pressure tyres… | ||
| Scan119 | Order of 12 sets of 6' balloon tyres on 20' rims for the 20 HP model. | ||
| View original record | BJ. C. R. c. Her. c. Hs. ---------- X. 4565 BY4/G.7.8.28. 20 HP. WHEELS & TYRES. -------------------- In accordance with a telegram we have received from R. we are ordering a total of 12 sets of 6"… | ||
| Scan120 | The fitment of Dunlop low pressure tyres on the first 'SS' chassis. | ||
| View original record | Hs. 4865 BY/Cgh9/N.19.9.28 With reference to DA/EVL/M.6.9.28 in connection with the proposal to fit 6.75" low pressure tyres on 20" rims in place of 6.75" tyres on 21" rims on the first "SS" chassis,… | ||
| Scan121 | Letter to the Dunlop Rubber Co. regarding the supply and testing of various tyres for a 40/50 HP car. | ||
| View original record | +4565 Expl: Dept: HS/aml/LG. X4050 25th. Sept. 1928. Messrs. The Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. Dear Sirs, For the attention of Mr. Paull. With reference to our conversation… | ||
| Scan122 | Balloon tyres and the Barkerlite demonstration body for the 20 HP car. | ||
| View original record | +4565 Hs. SG. BY. c. to BJ. Wor. CWB. R1/M17.9.28. 20 HP. CAR+ X.5820 X.5830 X.4565 The Barkerlite body for Trials still requires the balloon tyres - 6" tyres on 20" rims. I cannot under- stand why… | ||
| Scan123 | The poor mileage performance of Silent Tread Tyres. | ||
| View original record | Hs. from GWH. x4565 Hs/GWH/LG24.10.28. SILENT TREAD TYRE. 6.75". + 4050 We find from our experience that these tyres are giving us a poor mileage - viz: 2860 miles. This is the mileage taken to bring… | ||
| Scan124 | Clarifying that the term 'Fort' refers to tyre dimensions and the tread type is the RR silent tread. | ||
| View original record | X4565 To Sg. from Hs/Rm. Hs/Rm2/LGS.8.11.28. X4050 With reference to Sg8/M7.11.28. The type of tread referred to is of course the RR. silent tread. The term 'Fort' merely indicates the dimensions of… | ||
| Scan125 | Letter from Rolls-Royce of America to Rolls-Royce Ltd. regarding the failure of American Bosch ignitions and proposed changes. | ||
| View original record | X4581 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy13-E-91227 September 12th, 1927. Mr. E. F. Clarke, Rolls-Royce Ltd., Derby, England. Dear Mr. Clarke: Re Ignition X2894 Thank you for your note… | ||
| Scan126 | Page two of a letter regarding the avoidance of failure in the use of a ballast. | ||
| View original record | Oy13-E-91227 -2- September 12, 1927. outside to be highly satisfactory and to avoid the possible cause of failure involved in the use of a ballast, Yours very truly, Maurice Olley MO/E | ||
| Scan127 | Proposal to substitute American Bosch ignition with De Jon ignition. | ||
| View original record | X4587 Oy18-E-91527 September 15, 1927 To: Mr. Fuller Mr. Basil Johnson Mr. F. H. Royce cc - Works Committee ✓ London File Mr. Beaver Mr. Nadin Mr. Haldenby From: Mr. Olley Re Ignition - Section S150… | ||
| Scan128 | Proposal for a temporary change to a double head battery ignition system, citing reduced maintenance and noise. | ||
| View original record | Oy18-E-91327 -2- September 15, 1927 We propose this change as a temporary step. Undoubtedly the only satisfactory method of tackling the ignition is to produce it ourselves, as done at Derby. To do… | ||
| Scan129 | The testing of DeJon Ignition heads and coils, detailing a bench test and a road test on vehicle MX-2. | ||
| View original record | RE: DE JON IGNITION Two sets of DeJon Ignition heads and coils with automatic advance of 22º from 500 to 2000 RPM, were tested as follows: A. Bench test B MX-2 Test A. A pair of heads and coils were… | ||
| Scan130 | Proposal to adopt De Jon ignition to replace the American Bosch ignition due to supply issues. | ||
| View original record | R.R.A.100-1 10M-2-1-29 45625 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. PROPOSED STANDARDIZATION OF CHASSIS PARTS Alteration No. 8217/A Date September 13, 1927 To Mr. Philip Beaver The following… | ||
| Scan131 | American Standardisation Sheets and the necessity of a 10,000-mile test. | ||
| View original record | X4581 EP11/H3.10.27. BY. Hs. RE AMERICAN STANDARDISATION SHEETS NOS.83,84 & 85. We attach hereto correspondence and blueprints referring to the above. Will you please say whether it is considered… | ||
| Scan132 | Performance of different battery ignition systems, specifically comparing De Jon, Delco-Remy, and Bosch components. | ||
| View original record | To OY, from EFC. C.W. EP X4581 EFCA/T6.10.27. RE BATTERY IGNITION. X2894 X4187 X4284 We have received your note of Sept. 12th concerning ignition. We have also received copies of your OY16-E91327 with… | ||
| Scan133 | Ignition contact breaker improvements, comparing designs, materials, and developments with competitors like Delco-Remy and Bosch. | ||
| View original record | Contd. -2- EFC4/T6.10.27. certain way. But we have not yet quite got to the final arrangement. This will answer the query contained in your 5th paragraph. That is to say, the most improved development… | ||
| Scan134 | The design and use of ignition coils, comparing models with and without ballast resistance. | ||
| View original record | EFC4/T6.10.27. -3- Contd. may be the case (difficult to prove conclusively) but it certainly does not have anything like the effect of altering the mechanics of the contact breaker. Apparently this… | ||
| Scan135 | Notification regarding a delay in sending DeJon heads due to necessary detail changes. | ||
| View original record | X4181 (Extract from CY2/R.102427.) (X.3129.) Unfortunately we have not been able to send the DeJon heads yet as we have to make certain detail changes. | ||
| Scan136 | Test results for a 6-volt armoured ignition coil (DeJon coil) run without a ballast for 15 and 44 hours. | ||
| View original record | OY1O.R.11227. X4581 November 2nd, 1927. Mr. E. F. Clark, Rolls-Royce Ltd. Derby, England. Dear Mr. Clark: RE IGNITION. COIL WITHOUT BALLAST. X.3129 X.4581. Completing recent correspondence on this… | ||
| Scan137 | Requesting the construction and prolonged testing of a steering column switch using a new mouldensite rotor. | ||
| View original record | X. 4583 To RHC. from EFC EFC1/T27.4.23. X.4583 - IGNITION SWITCH WITH MOULDENSITE INSULATION We are sending you herewith a rotor of the steering column ignition switch which has been made up with… | ||
| Scan138 | Proposal to test and potentially adopt Mouldensite as a replacement for the rubber base in the 40/50 chassis steering column switch. | ||
| View original record | R.R. 199 (250T) (S.D.676 19-7-17) MP 180865 X.4583. EFC Mr Brock X.4583. BY2-P27.4.23. 40/50 CHASSIS. STEERING COLUMN. RE STEERING COLUMN SWITCH. The present switches at the bottom of the Steering… | ||
| Scan139 | Endurance test of a Steering Column Ignition Switch fitted with a bakelite insulated drum. | ||
| View original record | RR 300 (120B) (SF 349 24-1-19) MP 200552 X4583 95322 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E. F. C. Order No: Re: Customer's No. J.A.5. Endurance test of Steering Column Ignition Switch This switch… | ||
| Scan140 | Inspection report detailing wear and damage to a switch after a 25-hour endurance test. | ||
| View original record | RR 300 (120B) (SF 349 24-1-19) MP 200552 95323 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II 19 To Order No. Customer's No. J.A.5. Re (cont'd) started to squeak which continued until the end of the test.… | ||
| Scan141 | Recommending the substitution of 'mouldensite' for 'stabalite' in steering column ignition switch drums. | ||
| View original record | To By. from EFC. T4583 EFC1/T11.5.23. c. EP. c. Wor/Mr. Brock. STEERING COLUMN IGNITION SWITCH FITTED WITH MOULDENSITE INSULATED DRUM Please receive herewith copy of my assistants report on test of… | ||
| Scan142 | Test report on a steering column ignition switch fitted with a Mouldensite insulated drum. | ||
| View original record | EFC. 11.5.23. STEERING COLUMN IGNITION SWITCH FITTED WITH MOULDENSITE INSULATED DRUM IN PLACE OF STANDARD STABALITE INSULATED DRUM. This switch was fitted up with a belt pulley and driven at 40… | ||
| Scan143 | Transferring a set of steel artillery wheels from Dunlop, no longer needed for chassis 226, to the Experimental Department for testing. | ||
| View original record | Wd. c. Hs. X4586 BY/C4/P5.5.23. STEEL ARTILLERY WHEELS. With reference to the set of steel artillery wheels which we understand are on the way from the Dunlop people for chassis 226 (Kemp) which are… | ||
| Scan144 | Need to push through the testing of steel artillery wheels as an alternative to disc or wire wheels. | ||
| View original record | S/W Hs. Y4586 Re Steel Artillery Wheels. Confirming our conversation of yesterday, I hope you will kindly do everything you can to push through the testing of these steel wheels, because we are in… | ||
| Scan145 | Fitting and continuous use of steel artillery wheels on the 10,000 miles car. | ||
| View original record | W/S C. from Hs. X4586 Hs2/LG10.5.23. RE. STEEL ARTILLERY WHEELS. These were fitted to the 10,000 miles Car and will be running continuously on that car. Hs. | ||
| Scan146 | B.J. to Hs. requesting the latest news on Dunlop Artillery Wheels. | ||
| View original record | X4586 To Hs. from BJ. BJ4/H25.5.23. Dunlop Artillery Wheels. Will you please let me have the latest news concerning the Dunlop artillery wheels, and when you think it is possible we may be able to… | ||
| Scan147 | 5,000-mile performance of Dunlop steel artillery wheels and forthcoming standardisation sheets. | ||
| View original record | X4586 BJ. from Hs. Hs2/LG26.5.23. RE. DUNLOP STEEL ARTILLERY WHEELS. These have run approximately 5,000 miles. We anticipate being able to send round standardisation sheets in about 10 days time. Hs. | ||
| Scan148 | Weight comparison between Dunlop Artillery wheels and Wire wheels for a 20 HP car. | ||
| View original record | Mr. Hives from T.M.W. V6586 31.5.23. RE. DUNLOP ARTILLERY WHEELS FOR 20 HP. CAR. Comparison of weights :- Artillery wheel = 49 lbs. Wire wheel = 38 lbs. 6 ozs. The increase in weight (including one… | ||
| Scan149 | Query regarding the satisfactory testing and standardization of Dunlop Steel Artillery Wheels. | ||
| View original record | X4596 To Hs. from BJ. BJ8/H8.6.23. Dunlop Steel Artillery Wheels. With reference to Hs2/LG26.5.23, please let me know whether the test of the Dunlop steel artillery wheels is now sufficiently… | ||
| Scan150 | The testing and modification of Dunlop steel artillery wheels. | ||
| View original record | X4586 BJ. from Hs. Hs3/LG11.6.23. RE. DUNLOP STEEL ARTILLERY WHEELS. We have been continuing our tests with these wheels. We have, however, criticised the shape of the spokes and Messrs. Dunlop have… | ||
| Scan151 | Requesting test results for Dunlop Steel Artillery Wheels and querying further testing for design alterations. | ||
| View original record | X.4586 To Hs. from BJ. BJ3/H12.6.23. Dunlop Steel Artillery Wheels. Thank you for Hs3/LG11.6.23. Can you please let me know the result of the tests of the wheel up to date? Has the wheel given any… | ||
| Scan152 | Supply and potential redesign of Dunlop Steel Artillery Wheels. | ||
| View original record | X4586 To HHy. from BJ. BJ2/H22.6.23. Copies to: C. S. Opper. H. Hs. WGF. Dunlop Steel Artillery Wheels. I am sending copies of this to the officials concerned, asking them to make the following… | ||
| Scan153 | Instructions to supply and fit an experimental set of 6 steel Artillery wheels for 20 HP Chassis No. 65-H.7. | ||
| View original record | X.4586 ~~To BFb~~ c. to Hs. ~~c. to Chat.~~ D/BP3/EM11.7.23. re: 20 H.P. Chassis No. 65-H.7. - Col: James. ----------------- We have instructions from Sales Dept. to supply a set of 6 steel Artillery… | ||
| Scan154 | Standardisation report for Dunlop Artillery Steel Wheels as an alternative to wire wheels. | ||
| View original record | R.R. 744 (5 H) (S.J. 291, 19-10-21) G. 3087. COMPLETED 2.1.24. STANDARDISATION of CHASSIS PARTS. Description of Parts. DUNLOP ARTILLERY STEEL WHEELS. Origin. As an alternative to the wire wheels.… | ||
| Scan155 | Requesting permission to use Dunlop Steel Artillery wheels as an alternative to wire wheels. | ||
| View original record | BY. from Hs. Wor. RG. DA. EP. PN. DUNLOP STEEL ARTILLERY WHEELS. With reference to the attached standardisation sheet. It is not intended to standardise the Artillery steel wheels but permission is… | ||
| Scan156 | Attachment of a standard sheet for Dunlop Artillery Steel Wheels. | ||
| View original record | S/W. COPY. C2/C2.1.24. RE. DUNLOP ARTILLERY STEEL WHEELS. I attach hereto Std. sheet No.4586 in duplicate, duly signed by CJ. and BJ. CJ. will take the matter up with R. later. Meantime BJ. asks me to… | ||
| Scan157 | Standardisation sheet for Dunlop artillery steel wheels for different chassis models. | ||
| View original record | V4586 STEEL WHEELS. To Hs. from BJ. BJ9/H11.1.24. With reference to standardisation sheet No. 4586, for dunlop artillery steel wheels on the 20 H.P. chassis, has a similar sheet been issued in… | ||
| Scan158 | Lack of a standard sheet for steel wheels on the 40/50 HP model and an offer to test them. | ||
| View original record | B.J. from Hs. 44886 Hs2/LG12.1.24. STEEL WHEELS. There has been no std. sheet issued for steel wheels on the 40/50 HP. Neither have we carried out any tests with these wheels on the 40/50. The rims of… | ||
| Scan159 | Recommendation to issue a standardisation sheet for steel wheels as an alternative for customers who refuse wire wheels. | ||
| View original record | BJ. from Hs. 4586 STEEL WHEELS. Hs3/LG15.1.24. I have consulted BY. and we recommend that we issue immediately a standardisation sheet for the steel wheels. We consider that the experience we have on… | ||
| Scan160 | Standardisation document for Steel Artillery Wheels as an alternative to wire wheels. | ||
| View original record | STANDARDISATION of CHASSIS PARTS. COMPLETED 4.3.24 Date 15.1.24. X No. 4586 Description of Parts. STEEL ARTILLERY WHEELS. Origin: To provide alternative to wire wheels. Experimental Test Report. In… | ||
| Scan161 | Steering problems and dangers associated with fitting front brakes on cars with steel artillery wheels. | ||
| View original record | +4586 To CJ. from Hs. Hsl/LG1.4.24. STEERING OF ALL CARS. X9940 X4586 X963 With reference to the attached ref. R1/M29.3.24. The reason steel artillery wheels or any other type of wheel which increases… | ||
| Scan162 | Which types of wheels should be forbidden, focusing on steel artillery wheels and their suitability for front brakes. | ||
| View original record | To Hs. from BJ. 44886 BJ5/H3.4.24. STEERING OF ALL CARS. With reference to Hsl/Lw1.4.24, we have written to By. and E. to-day on this subject, as attached copies. With reference to CJ's note on… | ||
| Scan163 | Fitting of front wheel brakes to cars equipped with artillery wheels. | ||
| View original record | COPY. To By. from BJ. E. BJ2/H3.4.24. Re FITTING FRONT WHEEL BRAKES TO CARS FITTED WITH ARTILLERY WHEELS. By6/P31.3.24. C.J. has suggested that I should send you a copy of my memorandum to him,… | ||
| Scan164 | Difficulties and implications of fitting front wheel brakes to cars with artillery wheels. | ||
| View original record | (COPY) To CJ. from BJ. BJ6/H2.4.24. Re FITTING FRONT WHEEL BRAKES TO CARS FITTED WITH ARTILLERY WHEELS. With reference to BY6/P31.3.24 attached (headed 'Artillery Type Wheels, both Steel and Wood for… | ||
| Scan165 | The challenges and strategy for supplying artillery wheels with front wheel brakes. | ||
| View original record | BJ6/H2.4.23 (Cont'd.) COPY. 7. Should we not enquire immediately what other companies are doing in this respect, and whether we shall be at a disadvantage in being unable to supply artillery wheels… | ||
| Scan166 | The incompatibility of artillery type wheels with front wheel brakes for a new detachable design. | ||
| View original record | B.J. (COPY) BY6/P31.3.24. ARTILLERY TYPE WHEELS, BOTH STEEL AND WOOD, FOR NEW DETACHABLE DESIGN. In one or two of H's recent memos he has drawn attention to the fact that he considers it is absolutely… | ||
| Scan167 | Customer compensation options during brake fitting. | ||
| View original record | -2- BY6/P21.3.24 (Copy). when a customer has been using his car with complete satisfaction to himself he may prefer to accept a rebate rather than lose the use of his car for the length of time… | ||
| Scan168 | Use of Sankey type steel artillery wheels and associated hub designs. | ||
| View original record | 44586 TO BJ ) TO DA ) FROM R. TO BY ) S E C R E T. R1/M26.5.24. c. to HS. E. A. C. X.4586 X.9820 RE. ARTILLERY WHEELS. Regarding steel artillery wheels - Sankey type - for EAC.2 and 3., and Goshawk, I… | ||
| Scan169 | New design proposal for artillery wheels and an assessment of existing brake drums. | ||
| View original record | X.4586 BJ. Hs. BY16/H. 29. 5. 24. ARTILLERY WHEELS. ------------------ Referring to R1/M. 26. 5. 24. in connection with the above subject, Mr. Royce's proposal is an entirely new design. I am… | ||
| Scan170 | The failure of Dunlop steel artillery wheels on chassis 1-GW after 2,000 kilometers. | ||
| View original record | 40586 H. RECEIVED COPY. PN10/DN/12.6.24. TO: c. to Hs. & BJ. FROM P.N. DUNLOP STEEL ARTILLERY WHEELS - CHASSIS 1-GW. We feel very much concerned about the way the Dunlop steel wheels have behaved on… | ||
| Scan171 | Replacement of Dunlop steel artillery wheels with wire wheels for chassis 1-GW. | ||
| View original record | X4586 PN. Hs. BJ. BY12/H. 13. 6. 24. CHASSIS 1-GW. DUNLOP STEEL ARTILLERY WHEELS. --------------------- I would suggest that we should at once supply the Conde del Real with a complete set of wire… | ||
| Scan172 | Procedure for a new design and testing of Dunlop steel wheels. | ||
| View original record | X4586 W/S. c. Hs. BY8/H. 7. 7. 24. RE DUNLOP STEEL WHEELS. --------------------- Further to BY31/H. 19. 6. 24. and in reply to C/MH26/4. 7. 24. we feel that the position in regard to steel wheels must… | ||
| Scan173 | Modifications for steel artillery wheels, including a novel Michelin fixing with a patentable self-adjusting washer system. | ||
| View original record | X4586 SECRET. To CJ. BJ. BY. HS. EP. MR. CLAREMONT. FROM R. R5/M16.7.24. E. A. C. STEEL ARTILLERY WHEELS. X.4586 X.9820 DA. is just about completing the artillery wheel hub and fixing for EAC.3. and… | ||
| Scan174 | Design and modification of steering artillery wheels for front and back axles. | ||
| View original record | 74586 To BY. from DA. c. to CJ. HS. SECRET. DA1/M17.7.24. E.A.C. 2 and 3. STEERING ARTILLERY WHEELS. X.4586 X.9820 We send herewith N.sch.1321., shewing the above wheels for front and back axles. We… | ||
| Scan175 | Secret memo regarding a new design for steel artillery wheels on Dunlop hubs, involving modifications to the hub and brake drum. | ||
| View original record | +4586 To BY. from R. S E C R E T. R5/M18.7.24. c. to CJ. BJ. RG. HS. PN. C. H. E.A.C. 2 & 3. RE. STEEL ARTILLERY WHEELS ON DUNLOP HUBS. X.4586 X.9820 (1) As mentioned in a recent memo. we now have a… | ||
| Scan176 | Secret memorandum discussing an alternative mounting method for steel artillery wheels. | ||
| View original record | X.4586 To BY. from DA. c. to CJ. HS. S E C R E T. DA2/M19.7.24 E.A.C.111. STEEL ARTILLERY WHEELS. X.4586. As promised, we send herewith N.sch.1825., shewing an alternative method of mounting the steel… | ||
| Scan177 | Faulty welds on steel artillery wheels for chassis 1-CW, attributing the problem to Dunlop Co. | ||
| View original record | X4586 BY/HM2/K. 19.7.24. BM. c. Hs. CHASSIS 1-CW STEEL ARTILLERY WHEELS. Further to our memo BY12/H13.6.24., the Steel Artillery Wheels from the above chassis, have now come to hand, and on… | ||
| Scan178 | Interchangeability of steel and wire wheels, and the potential noise from disc wheels. | ||
| View original record | x4586 To Hs. from JS. JS3/E17/9/24 Will you please note the following extract from notes of a conference held yesterday between R., CJ., BJ. and Wor:- BJ asked R. whether it would not be possible to… | ||
| Scan179 | The arrival of a special set of 12-spoke Steel Artillery Wheels from Dunlop. | ||
| View original record | Hs. C.C. to Mr Chat. Y4580 Wd/AW19/W18.12.24. We have been advised by the Dunlop Rim & Wheel Co Ltd., Coventry, that the special set of 12 spoke Steel Artillery Wheels will leave by test car today… | ||
| Scan180 | Standardization test for new steel artillery wheels and hubs on the 40/50 HP chassis. | ||
| View original record | ✓4586 c. Hs. BY/C2/H. 20.12.24. 40/50 HP. CHASSIS. NEW TYPE STEEL ARTILLERY WHEELS AND HUBS. --------------------------------- With reference to Wd17/NJ. 19.12.24. the set of five wheels referred to… | ||
| Scan181 | Receipt and proposed testing of new type steel artillery wheels. | ||
| View original record | 44586 To B.J. from Hs. c. to BY. Hs7/LG23.12.24. 40/50 HP. NEW TYPE STEEL ARTILLERY WHEELS. We have received the first set of the new type steel artillery wheels and hubs which are suitable for cars… | ||
| Scan182 | Testing of new type steel artillery wheels versus standard wire wheels for the 40/50 HP 'V' series chassis. | ||
| View original record | To Hs. from BJ. Copies to BJ. (for O.S.C.) X4586 BJ4/H29.12.24. 40/50 HP. New Type Steel Artillery Wheels. With reference to Hs7/LG23.12.24, we hardly think it would be a fair test of the 'V' series… | ||
| Scan183 | Testing of new type steel artillery wheels for the 40/50 HP model. | ||
| View original record | To BJ. from Hs. c. to BY. c. to C. (For C.S.C.) X4586 Hs4/LG30.12.24. 40/50 HP. NEW TYPE STEEL ARTILLERY WHEELS. X8810 It is not our desire to complicate tests on 'V' series chassis with steel… | ||
| Scan184 | Testing method for new 40/50 HP steel artillery wheels and potential cost sharing with Dunlop. | ||
| View original record | To Hs. from B.J. X4586 BJ9/H7.1.25. 40/50 HP. New Type Steel Artillery Wheels. Hs4/LG30.12.24. Do you consider these artillery wheels could be satisfactorily tested on the bump test instead of having… | ||
| Scan185 | Testing new 40/50 type steel artillery wheels on a bumping rig. | ||
| View original record | X4586 To BJ. from Hs. Hs7/LGS.1.25. 40/50 NEW TYPE STEEL ARTILLERY WHEELS. Referring to BJ9/H7.1.25. We consider that if we test the new artillery wheels on the bumping rig and they prove… | ||
| Scan186 | Inquiry about the status of experiments on steel wheels for front wheel brakes, specifically the 'bumping' test. | ||
| View original record | S/W X.4586 C4/C26.1.25. Steel Wheels suitable for Front Wheel Brakes. ------ We shall be glad to know how this matter now stands, and whether you have been able to pass the steel wheels after your… | ||
| Scan187 | Testing of steel wheels suitable for front wheel brakes. | ||
| View original record | W/S. To C. from Hs. c. to BY. XC4586 Hs7/LG28.1.25. STEEL WHEELS SUITABLE FOR FRONT WHEEL BRAKES. Answering your C4/C26.1.25. The tests with these wheels on the bumping rig are now in progress. Hs. | ||
| Scan188 | Starting the road test and sales evaluation for new steel artillery wheels on the 40/50 HP chassis. | ||
| View original record | +4586 Hs. BY14/H. 24. 2. 25. STEEL ARTILLERY WHEELS. 40/50 HP. CHASSIS. BJ. has been on the telephone this afternoon to emphasize the fact that he considers the road test should be started with the… | ||
| Scan189 | Request from the Sales department for steel wheels suitable for front brakes and the urgency of conducting trial runs. | ||
| View original record | X4586 Hs. BY5/H. 24. 2. 25. Sales have been at me for a week for us to send a set of steel wheels suitable for front wheel brakes to London. I attach hereto copy of BJ2/H.23.2.25. which is the last… | ||
| Scan190 | The need to test steel wheels on the 40/50 chassis before ordering a quantity. | ||
| View original record | Copy BY from BJ. c. C. ---------------- BJ2/H. 23.2.25. --------------- STEEL WHEELS. 40/50 CHASSIS. ----------------------------- With reference to BY14/H.17.2.25. and BY9/H.19.2.25. before ordering… | ||
| Scan191 | The 40/50 HP. Chassis with steel wheels. | ||
| View original record | +4586 Hs. BY5/H. 27. 2. 25. 40/50 HP. CHASSIS. STEEL WHEELS. I attach herewith copy of memo we have received from C, reference C3/C. 25.2.25. BJ. had previously wired us to the same effect. BY.… | ||
| Scan192 | Communication about road testing and releasing new steel wheels for the 40/50 HP model. | ||
| View original record | S/W BY. Copy C3/C. 25.2.25. Steel Wheels on 40/50 h.p. We confirm the telegram sent you from Sales Conference yesterday. We are, of course, very anxious to get these wheels ready to offer to the… | ||
| Scan193 | On satisfactory tests of steel artillery wheels for cars with four-wheel brakes, and arranging a viewing in London. | ||
| View original record | 44586 To BJ. from Hs. c.c. to C. PN. c.c. to CWB. BY. STEEL ARTILLERY WHEELS FOR CARS FITTED WITH FOUR WHEEL BRAKES. Tests on the bumping rig and on the road shew these wheels to be satisfactory and… | ||
| Scan194 | Technical memo providing feedback on steel wheels, axle control, and springing for a car with four-wheel brakes. | ||
| View original record | X4586 To Hs. from BJ. BJ2/H16.3.25. STEEL ARTILLERY WHEELS FOR CARS FITTED WITH FOUR WHEEL BRAKES. HS6/LG11.3.25. With reference to the car with open touring body fitted with steel wheels and… | ||
| Scan195 | Standardisation document for steel artillery wheels suitable for front wheel brakes. | ||
| View original record | RR 755 (1CH) (SL391 2-11-23) MP 281297 44586 COMPLETED 28.4.25. STANDARDISATION of CHASSIS PARTS. Date 20.3.25 Description of Parts. STEEL ARTILLERY WHEELS - suitable for front wheel brakes. Origin.… | ||
| Scan196 | Supply, testing, and fitting of new 20 HP steel artillery wheels. | ||
| View original record | +4586 HS. G RHC 20 HP. STEEL ARTILLERY WHEELS SUITABLE FOR F.W.B. The first set of these wheels has been delivered by the Dunlop Company and are being sent into the Experimental Dept. We have only got… | ||
| Scan197 | The distinguishing letters and numbers for Steel Artillery and Wire Wheels and Hubs. | ||
| View original record | By. from Wd. c.to Hs. XC4586 Wd7/WJ11.5.25. Steel Artillery Wheels and Hubs. Wire Wheels and Hubs. Distinguishing letters and numbers. As you are aware, the standard wire wheels and hubs for our 40/50… | ||
| Scan198 | Letter from Dunlop Rim & Wheel Co. Ltd. proposing a new reference system for hubs on steel and wire wheels. | ||
| View original record | COPY OF LETTER FROM:- THE DUNLOP RIM & WHEEL CO.LTD., HOLBROOK LANE, FOLESHILL, COVENTRY. GES/DS. DRAWING OFFICE. 8th May 1925. Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, HUBS FOR STEEL & WIRE… | ||
| Scan199 | Confirming no objection to new distinguishing letters and numbers for wheels and hubs on 40/50HP and 20-HP chassis. | ||
| View original record | X4586 c. HS. BY/HM8/W.13.5.25. STEEL ARTILLERY WHEELS AND HUBS, WIRE WHEELS AND HUBS. Referring to your memo' Wd7/NJ.11.5.25. kindly note we see no objection to the new distinguishing letters and… | ||
| Scan200 | Successfully shortening steel artillery wheel hubs and proposing to do the same for wire wheel hubs. | ||
| View original record | To CJ. from R. c. to BJ. BY. c. to Hs. X4586 R6/M13.10.25. ROAD WHEEL HUBS. X.421 X.5580 [struck through] X.4586 We have successfully shortened these for steel artillery wheels. We are now proposing… | ||
| Scan201 | Use of artillery wheels compared to wire and disc wheels. | ||
| View original record | To CJ. from R. c. to BJ. BY. c. to Hs. PN. +4586 R1/M24.10.25. RE. ARTILLERY WHEELS. X.4586 X.3809 Replying to your CJ3/E21.10.25., I agree to artillery wheels being used where the wowners insist upon… | ||
| Scan202 | Balance weight scheme for 20 HP and 40/50 steel artillery wheels. | ||
| View original record | To BY. from DA. c. to BJ. Hs. X4586 DAL/M23. 7. 26. " 20 HP. - STEEL ARTILLERY WHEELS. X.4586 X.5810 With further reference to BY/CGH5/H7. 7. 26., we send herewith N.sch. 2240 shewing the original… | ||
| Scan203 | Mounting of steel artillery wheels on a Phantom with a new axle, including design modifications. | ||
| View original record | To EY. from DA. c. to BJ. Hs. X4586 DA1/M14. 8.26. STEEL ARTILLERY WHEELS ON PHANTOM WITH NEW AXLE. X.4586 X.7420 X.7810 Herewith we send N.sch.2215 shewing the method of mounting steel artillery… | ||
| Scan204 | Testing experimental steel artillery wheels with pressed fixed hubs on a 20 HP chassis. | ||
| View original record | Hs. X4586 BY4/H. 24.8.26. 20 HP. CHASSIS. STEEL ARTILLERY WHEELS SUITABLE FOR STRAIGHT SIDED TYRES, UTILISING FIXED HUBS MADE FROM PRESSINGS. We note that it will be three months before the 20 HP. car… | ||
| Scan205 | Delivery and testing of artillery type steel wheels for 20 HP and 40/50 HP models. | ||
| View original record | Hs. BY/TWD. BY/SS. X4586 BY15/H. 13.12.26. [STAMP: RECEIVED 13 DEC 1926] ARTILLERY TYPE STEEL WHEELS. The Order Office inform us they are just sending across to your Department the first set of 20 HP… | ||
| Scan206 | Proposal for adapting a standard two-arm side spare wheel carrier for Phantom steel artillery wheels. | ||
| View original record | To BY. from DA. c. to BJ. Hs. X. 4586 DA5/M22.12.26. PHANTOM STEEL ARTILLERY WHEELS. We send herewith N.sch.2330 shewing our proposal for adapting the std. two arm side spare wheel carrier to the… | ||
| Scan207 | Weight specifications for Dunlop Steel Artillery Wheels, Type H.2 (Goshawk). | ||
| View original record | To H.H. DUNLOP STEEL ARTILLERY WHEELS. X 4586 30.12.26. TYPE H.2.(GOSHAWK) Weight of wheels, fitted with hub caps, but no balance weights or tyre fittings:- a) Well base wheel. 38 lbs. b)… | ||
| Scan208 | Standardization and ordering of steel artillery type wheels with well base rims. | ||
| View original record | Hs RECEIVED JAN 10 1927 X4586 WYS/S.G. c. Hs. BYL/H. 10.1.27. STEEL ARTILLERY TYPE WHEELS WITH WELL BASE RIMS. We wrote you on the 30th ultimo, reference BYL/H. 30.12.26, pointing out that we saw no… | ||
| Scan209 | Raising concerns about delays and process changes for testing steel artillery wheels. | ||
| View original record | X4886 S/W. BY. Sgl/H/20.1.27. Re: Steel Artillery Wheels. [Handwritten note in left margin] Ho will you reply to this & will you give me your comments As for BY(3). Replying to BY17/H18.1.27. - I have… | ||
| Scan210 | Procedure for testing artillery wheels, specifically using a bumping rig versus road testing. | ||
| View original record | XH586 Hs. BY12/H. 18.1.27. I have done by best to get the artillery wheel question settled out of hand, apart from any question of bumping or road test. I cannot get any settlement on the matter… | ||
| Scan211 | Clarifying a previous decision regarding the ordering of steel artillery wheels and the necessity of bumping tests. | ||
| View original record | By 18 JAN 27 RECEIVED S/W By. C3/C17.1.27. Re Steel Artillery Wheels. Sg. and I have discussed your memos. By11/H30.12.26, By1/H10.1.27 and By7/H14.1.27. Will you kindly note that BJ., Sg. and myself… | ||
| Scan212 | Responding to a query about the status and testing of steel artillery wheels for 20 HP and Phantom models. | ||
| View original record | To Sg. from Hs. c. EY. 44586 Hs7/T24.1.27. STEEL ARTILLERY WHEELS. Ey. has asked me to reply to your memo Sg1/M20.1.27. (1) The 20 HP. wheels were received 14.12.26. After they are received there is… | ||
| Scan213 | History of correspondence and testing regarding Steel Artillery Wheels with Wellbase Rims. | ||
| View original record | V4586 HW (Copy to ~~Wor.~~ ~~Mr.~~ Hs.) Se6/W/24.1.27. Re: Steel Artillery Wheels with Wellbase Rims. The history of this matter from last June, is as follows :- June, 1926. 'S' were informed that 'W'… | ||
| Scan214 | Test eliminations, production concerns, and supply issues related to tyres and rims. | ||
| View original record | - 2 - had already agreed eliminate 10,000 miles test and asking if it was now suggested that the bumping test should also be eliminated. 18th January, 1927. BY. says 'Yes' to last question and gives… | ||
| Scan215 | Letter regarding the ordering and testing of Steel Artillery Wheels with Wellbase Rims. | ||
| View original record | Y4586 S/W (Copy to Hs). Sg4/M/28.1.27. Re: Steel Artillery Wheels with Wellbase Rims. With further reference to former correspondence and discussion with BJ. the other day, we understand that the 20… | ||
| Scan216 | The receipt of experimental steel artillery wheels for the 40/50 HP chassis and arranging for Dunlop to produce 12 sets. | ||
| View original record | X4586 W/O. c. Hs. BY/Cgh3/H. 2.2.27. RE STEEL ARTILLERY WHEELS WITH WELL BASE RIMS. With reference to Sg4/BM.28.1.27, since writing our previous memo on this subject the Experimental set of steel… | ||
| Scan217 | Modified side carrier for artillery wheels for the Phantom model. | ||
| View original record | To BY. from DA. c. to BJ. Hs. 4586 DA2/M28.2.27. PHANTOM. MODIFIED SIDE CARRIER FOR ARTILLERY WHEELS. X. 8600 X. 4586 Herewith we send N.sch.2364 shewing the modif- ication to the side carrier for… | ||
| Scan218 | Letter from Dunlop Rim & Wheel Co. Ltd. proposing the supply of a set of Wire Wheels and enclosing blueprints. | ||
| View original record | DUNLOP RIM & WHEEL CO. LTD. WITH WHICH IS ASSOCIATED W. GOODYEAR & SONS LTD. (DUDLEY). TELEGRAPHIC ADDRESS: "SOUND, COVENTRY". MANUFACTURERS OF ALL CLASSES OF WHEEL & HUB EQUIPMENT GENERAL ENGINEERS.… | ||
| Scan219 | Letter to The Dunlop Rubber Co. concerning the supply of 31' and 33' tyres and the wheel question. | ||
| View original record | 44586 Expl: Dept: Hs/Rm4/LG. 6th. May 1927. The Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. X3725 Dear Sirs, For the attention of F.Fellowes. Development Department. We thank you for your… | ||
| Scan220 | Requesting an investigation into modifying hubs to enable comparative testing of artillery and wire wheels on the same front axle. | ||
| View original record | To BY. from Hs/Rn. Hs/Rm1/LG18.5.27. X4586 X4586 / X8470 ARTILLERY WHEELS. We wish to carry out some tests comparing artillery and standard wire wheels on a 40/50 HP. front axle. Unfortunately at… | ||
| Scan221 | Standardisation report on steel artillery wheels as an alternative to wire wheels. | ||
| View original record | RR 755 REVISED (10H) (DE 649 9-12-26) 5M. 2/1187. COMPLETED 30.5.27 STANDARDISATION of CHASSIS PARTS. Date 21.4.27 Description of Parts. STEEL ARTILLERY WHEELS AS AN ALTERNATIVE TO WIRE WHEELS.… | ||
| Scan222 | The costs involved in offering steel artillery wheels as an alternative to wire wheels. | ||
| View original record | To Hs. from My/Rb. My/Rb6/N/139A/BJ9.5.27. STEEL ARTILLERY WHEELS AS AN ALTERNATIVE TO WIRE WHEELS, TO COMPLY WITH CUSTOMERS' REQUESTS. Returned herewith is std. sheet X.4586 with cost filled in. We… | ||
| Scan223 | Standardisation of chassis parts, specifically regarding the use of artillery wheels. | ||
| View original record | RR 755 REVISED (10H) (DE 649 9-12-26) BM. 2/1187. y4586 completed 1.6.27 STANDARDISATION of CHASSIS PARTS. Date 23.5.27 X No. 4586 Description of Parts. ARTILLERY WHEELS. Drawing No. G.51934 f. No.… | ||
| Scan224 | Standardisation of artillery wheels for the X.4586 - 20 HP model. | ||
| View original record | To Hs. from My/Rb. My/Rb13/N/139A/BJ30.5.27. RE. STANDARDISATION OF ARTILLERY WHEELS. X. 4586 - 20 HP. Returned herewith std. sheet as above. Please note, the £1. 13. 11d. saving does not take into… | ||
| Scan225 | Proposal to reduce the width of standard wire wheels for the Phantom model by adapting artillery wheel hubs. | ||
| View original record | BY. from DA. c. to BJ. Hs. X4586 DAL/M1.10.27. NARROWER WIRE WHEELS - PHANTOM. X.421 X.8810 X.4586 X.3580 X3725 Herewith we send N.sch.2477 shewing a proposal for reducing the width of the standard… | ||
| Scan226 | Proposed narrower wire wheels and hubs for the 20 HP chassis. | ||
| View original record | (4586) BY. from DA. c. to BJ. Hs. DA2/M8.10.27. 20 HP. WIRE WHEELS. X.3580 X.4586 X.5810 We send herewith N.sch.2478 shewing the proposed narrower wire wheels for use on the 20 HP. chassis. It will be… | ||
| Scan227 | The testing of a new voltage regulator from The British Lighting & Ignition Company using a 20 HP dynamo. | ||
| View original record | X4589 To Sft. from EFC. EFC1/T9.6.23. X.4589 - B.L.I.C. VOLTAGE REGULATOR. Yesterday we had a visit from two representatives of The British Lighting & Ignition Company, who are developing a new form… | ||
| Scan228 | Testing of a voltage regulator from The British Lighting & Ignition Company on a 20 HP dynamo. | ||
| View original record | X4589 To Wd. from EFC. EFC2/T9.5.23. X. 4589 - B.L.I.C. VOLTAGE REGULATOR. During the visit of the two representatives of The British Lighting & Ignition Company yesterday, their system of external… | ||
| Scan229 | B.L.I.C. rotating magnet magneto and a new voltage control system. | ||
| View original record | To R. from EFC. c. to CJ. X4589 EFC3/T9.6.23. X.4589 - B.L.I.C. VOLTAGE REGULATOR. We yesterday received a visit from two representatives of the B.L.I.C. (British Lighting & Ignition Company) and a… | ||
| Scan230 | Hand-drawn schematic of a DC motor circuit with a battery. | ||
| View original record | R, F-, +, - | ||
| Scan231 | Receipt of a dynamo for approval and its subsequent forwarding for a voltage regulator. | ||
| View original record | X.4589. 18.6.23. Mr. Clark. Please receive 1 dynamo for your approval to Sft.'s instructions. Sgd. -Peach. Sent to b.~I.C. for their voltage regulator. | ||
| Scan232 | Letter to British Lighting & Ignition Co. Ltd. regarding the dispatch of a 20 HP dynamo for experimental testing and adaptation. | ||
| View original record | X4589 c. Wd. EFO4/T. 18th June, 1923. The British Lighting & Ignition Co.Ltd., B.L.I.C. Works, Cheston Road, Aston, Birmingham. Dear Sirs, As arranged during the visit of your two Representatives on… | ||
| Scan233 | Letter from a supplier confirming receipt of a 20-HP chassis dynamo and that modifications are underway. | ||
| View original record | X4589 TELEGRAMS "VICKSMAG," PHONE BIRMINGHAM. CODES USED WESTERN UNION & BENTLEYS TELEPHONE BIRMINGHAM, EAST 340 (6 LINES) THE BRITISH LIGHTING & IGNITION Co. LTD. PROPRIETORS:- VICKERS LIMITED.… | ||
| Scan234 | Letter regarding unsatisfactory 'Z' Le Carbone Brushes on a 20 HP generator and the supply of alternative brushes for testing. | ||
| View original record | X4589 c. Wd. EFC1/T. 10th July, 1923. The British Lighting & Ignition Co.Ltd., B.L.I.C. Works, Cheston Road, Aston, Birmingham. Dear Sirs, With reference to your telephone message of this morning… | ||
| Scan235 | Continued letter providing instructions on using brushes and mentioning standard Z brushes. | ||
| View original record | EFC1/T. 10.7.23. -2- Contd. We suggest that if you use these brushes, at least half of the pigtail flexible should be cut away at the brush. Our present standard Z brushes have, of course, smaller… | ||
| Scan236 | Requesting a follow-up with B.L.I.C. on the progress of adapting a voltage regulator for a Goshawk dynamo. | ||
| View original record | X.4589. To Wd. from EFC. EFC6/T5.9.23. X.4589 - B.L.I.C. VOLTAGE REGULATOR. A short while ago we sent to the B.L.I.C. one of our Goshawk dynamos to which to adapt their electrolytic voltage regulator… | ||
| Scan237 | Correspondence regarding experimental work on a B.L.I.C. electrolytic voltage regulator for a 20 HP car. | ||
| View original record | EFC. from Wd. X.4589. Wd9/NJ18.9.23. X.4589 - B.L.I.C.Voltage Regulator. In reply to yours EFC6/T5.9.23, we are this morning in receipt of a letter from the British Lighting & Ignition Co. dated 17th… | ||
| Scan238 | Letter to The British Lighting & Ignition Co. Ltd. acknowledging receipt of an electrolytic voltage control and a 20 HP chassis dynamo for testing. | ||
| View original record | X4589 EFC3/T. 19th October, 1923. Messrs. The British Lighting & Ignition Co.Ltd., B.L.I.C. Works, Cheston Road, Aston, Birmingham. Dear Sirs, We have duly received sample of your electrolytic voltage… | ||
| Scan239 | Letter confirming the receipt of an Electrolytic Dynamo and Battery Controller for testing. | ||
| View original record | X. 4589. TELEGRAMS "VICKSMAG," PHONE, BIRMINGHAM CODES USED WESTERN UNION & BENTLEYS TELEPHONE BIRMINGHAM, EAST 340 (6 LINES) THE BRITISH LIGHTING & IGNITION CO LTD PROPRIETORS: VICKERS LIMITED.… | ||
| Scan240 | List of test procedures for a B.L.I.C. voltage regulator applied to a 20 HP dynamo. | ||
| View original record | X.4589 EFC/T29.1.24. X.4589 - B.L.I.C. VOLTAGE REGULATOR APPLIED TO R.R. 20 HP. DYNAMO. (1) Confirm correct direction of rotation for excitation. (2) Determine polarity of excitation. (3) Determine… | ||
| Scan241 | Request for a report on the Electrolyte Voltage Regulator currently under observation for The Blic Company. | ||
| View original record | EFC from ROY. ------------- X4689 ROY6/AG11.4.24. ------------- The Blic Company are asking if we can give them any report yet on the Electrolyte Voltage Regulator we have here under observation.… | ||
| Scan242 | The investigation status of the B.L.I.C. Electrolytic Voltage Regulator. | ||
| View original record | X4589 To ROY. from EFC. EFC2/T12.4.24. X.4589 - B.L.I.C. ELECTROLYTIC VOLTAGE REGULATOR. Answering your ROY6/MG11.4.24, we made a start with the investigation of this regulator some time back, but had… | ||
| Scan243 | Letter from The British Lighting & Ignition Co. Ltd. following up on a previously suspended investigation into an Electrolytic Voltage Regulator. | ||
| View original record | X45589 COPY OF LETTER FROM :- THE BRITISH LIGHTING & IGNITION CO. LTD. BLIC WORKS, CHESTON ROAD, ASTON, BIRMINGHAM. JCH/EJB/WEC. Your ref ROY13/MG16.4.24. 17th Sept. 1924. Messrs. Rolls-Royce Ltd.,… | ||
| Scan244 | Status of tests on a B.L.I.C. Voltage Regulator. | ||
| View original record | XC4589 To Roy. from EFC. EFC2/T20.9.24. X.4589. B.L.I.C. VOLTAGE REGULATOR. With reference to the letter from The British Lighting & Ignition Co.Ltd., ref. JCH/EJB/WEC. of the 17th inst., which letter… | ||
| Scan245 | The location of a Dynamo, an Electrolytic Regulator, and a Regulator Resistance owned by another company. | ||
| View original record | E.F.C. X4589 My/WFH/CA23/LSB27.1.25. We have received a letter from the British Lighting & Ignition Co.Ltd., stating that we have one Rolls-Royce Dynamo, one Electrolytic Regulator full of Alkali, and… | ||
| Scan246 | The testing and status of a B.L.I.C. electrolytic voltage regulator. | ||
| View original record | X4589 To My/WFH. from EFC. EFC1/T28.1.25. X.4589. B.L.I.C. ELECTROLYTIC VOLTAGE REGULATOR. Answering your My/WFH/CA23/LSB27.1.25 we still have in our possession the electrolytic regulator full of… | ||
| Scan247 | Cover letter forwarding correspondence from the British Lighting & Ignition Co. Ltd. | ||
| View original record | X.4589. EFC My/WFH2/LSB4.2.25. I attach hereto a letter received from the British Lighting & Ignition Co.Ltd., dated February 3rd. ref. SM/PL/6708, and have advised them that we have passed this on to… | ||
| Scan248 | Letter from The British Lighting & Ignition Co. Ltd. regarding the ownership of a dynamo and requesting a report on electrolytic regulator equipment. | ||
| View original record | TELEGRAMS. 'VICKSMAG,' PHONE, BIRMINGHAM CODES USED WESTERN UNION & BENTLEYS TELEPHONE BIRMINGHAM EAST 340 (6 LINES) THE BRITISH LIGHTING & IGNITION Co. LTD., PROPRIETORS:- VICKERS LIMITED. LONDON… | ||
| Scan249 | Letter to British Lighting & Ignition Co. Ltd. regarding a Dynamo and Electrolytic Regulator. | ||
| View original record | C O P Y. My/WFH/10/LSB28.1.25. 28th January 1925. The British Lighting & Ignition Co.Ltd., Blicworks, Cheston Road, Aston, Birmingham. Dear Sirs, With reference to your letter of the 15th January… | ||
| Scan250 | Instructions and progress report on testing a BLIC Dynamo Equipment. | ||
| View original record | RR 250 (100 BKS) (SH57.29-6-20.) MP 224398 X.4589 ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Order No.: AE.41. Customer's No.: X.4589 Date: 9. Feb. 1925 Work on BLIC Dynamo Equipment. The work so far done… | ||
| Scan251 | Results of testing an electrical apparatus and dynamo under various loads. | ||
| View original record | RR 238 (150 BKS.) (SH57 29-6-20.) MP 224398 ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. Customer's No. 2 resistance included in the system. The apparatus was then arranged to operate with our… | ||
| Scan252 | Instructions regarding an investigation into dynamo characteristics for battery charging requirements. | ||
| View original record | RR 238 (100 BKS.) (SHDT 29-9-20.) MF 224355 ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. S. 19 ordinary battery charging requirements without over-heating the dynamo, although vigorous… | ||
| Scan253 | Letter regarding experimental bench tests on electrolytic regulator equipment and issues with cell gassing. | ||
| View original record | X4589 EFC2/T. 10th February, 1925. Messrs. The British Lighting & Ignition Co.Ltd., B.L.I.C. Works, Cheston Road, Aston, Birmingham. Dear Sirs, With reference to your letter enquiring as to our… | ||
| Scan254 | Thank you letter regarding information provided on Electrolytic Regulator Equipment. | ||
| View original record | X4589 TELEGRAMS "VICKSMAG" PHONE, BIRMINGHAM CODES USED WESTERN UNION & BENTLEYS TELEPHONE BIRMINGHAM EAST 340 (6 LINES) THE BRITISH LIGHTING & IGNITION Co. Ltd. PROPRIETORS: VICKERS LIMITED. LONDON… | ||
| Scan255 | Query regarding outstanding 'Sale or Return' items delivered in 1923 from the British Lighting & Ignition Co. Ltd. | ||
| View original record | EFC. V4589 Wd/Dn7/PH24.2.26. [unintelligible signature] We attach hereto a note from the British Lighting & Ignition Co. Ltd. Birmingham, from which it would appear that we have in our possession the… | ||
| Scan256 | Retention of a B.L.I.C. Electrolytic Voltage Regulator for ongoing investigations. | ||
| View original record | X4589 To Wd/Dn. from EFC. EFC1/T1.3.26. X.4589 - B.L.I.C. ELECTROLYTIC VOLTAGE REGULATOR. Answering your Wd/Dn7/BH24.2.26. we still have the equipment mentioned therein and it is intended as soon as… | ||