Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 19\2\        Box Selection

IdentifierEntry
Scan001 Minutes from a meeting discussing issues with Truffault Shock Absorbers and proposing improvements and tests.
View original record A/13.11.11 73rd Meeting Re Truffault Shock Absorbers. Nov. 13th. 11 // x762 Mr. Platford reported by letter that to get good springing it is essential to have really flexible springs, and at the same…

Scan002 Quoting a letter from Mr. Truffault about a delay in delivering shock absorbers due to testing by Peugeot.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS TELEGRAMS: ROLLSROYCE-PARIS SHOWROOM, 102, Avenue des Champs-Elysées Teleph.: Wag. 87-04 OFFICES: GARAGE: STORES and…

Scan003 Departmental memo discussing the testing and fitting of Truffault Shock Absorbers (No 2).
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS SHOWROOM, 102, Avenue des Champs-Élysées Téléph.: Wag. 87-04 OFFICES: 83, Boulev. Gouvion-Saint-Cyr GARAGE: STORES and…

Scan004 Departmental memo discussing the positive results from testing Truffault shock absorbers.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS SHOWROOM, 402, Avenue des Champs-Elysées Téléph.: Wag. 87-04 OFFICES : GARAGE : STORES and REPAIRS : } 83, Boulev.…

Scan005 Departmental memo regarding a report on Truffault Shock Absorbers (No 4).
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS DEPARTMENTAL MEMO SHOWROOM, 102, Avenue des Champs-Elysées Téléph.: Wag. 87-05 OFFICES: GARAGE: STORES and REPAIRS: 83,…

Scan006 Truffault Shock Absorbers and a request for particulars.
View original record To Mcr. from Wor. 1938 Wcr40/TJ3116. January 13th, 1916. re Truffault Shock Absorbers. --------------------------- I am sending you a sheet received from Mr. Johnson re some shock absorbers. Kindly…

Scan007 Request to fit Truffault shock absorbers to an experimental car, possibly for Mr Royce.
View original record R.R. 235 a (300 H) (S.C. 25. 1-12-15) G. 1371 1934 Re Truffault Shock Absorbers. Mr Hives. 18.1.16. Mcr13/L18116. Mr Johnson wants a set of the above to be fitted to an experimental car but thinks…

Scan008 Letter regarding Truffault Shock Absorbers, potential chassis fitment, and the company's wartime focus on aeroplane engines.
View original record Re Truffault Shock Absorbers. W to Paris. 20.1.16. Wcr4/L20116. B. Mr Johnson has forwarded to us your letter B17/D 10.1.16. and he has suggested that we should send you particulars of this chassis.…

Scan009 Departmental memo regarding the fitting of Truffault Shock Absorbers to different chassis models.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS TELEGRAMS: ROLLSROYCE-PARIS DEPARTMENTAL MEMO [Handwritten]: 438 SHOWROOM, 102, Avenue des Champs-Elysées Téléph.: Wag.…

Scan010 Meeting with Mr. Truffault about shock absorbers and an idea to prevent spring roller wear.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS TELEGRAMS : ROLLSROYCE-PARIS SHOWROOM, 102, Avenue des Champs-Elysées Téléph. : Wag. 87-05 OFFICES : GARAGE : STORES and…

Scan011 Suggestion from Mr. Truffault about preventing wear on a spring roller.
View original record Re Truffault Shock Absorbers. EP. 12.2.16. Mcr18/L12216 . We understand that Mr Truffault made a suggestion to Blackshaw for preventing spring roller G.169 from becoming worn. Mr Johnson is enquiring…

Scan012 To Mr. Platford detailing a suggestion from Mr. Truffault for an improved spring roller and friction shock absorber.
View original record 14th Feb. 1916. Mr. Platford. Whilst at the R-R Garage in Paris, Mr. Truffault made a suggestion to me for preventing the spring roller G169 from being worn, or the spring wearing a flat on the…

Scan013 Report on an interview with Mr. Truffault, Mr. Royce's opinion on spring rollers, and the acquisition of new shock absorbers.
View original record J. from EP. EP21/T/L15216. As requested by you I attach herewith copy of Blackshaw's report concerning his interview with Mr. Truffault. I may say that I do not think Mr. Royce would like the rack and…

Scan014 Forwarding Blackshaw's report on an interview with Mr. Truffault.
View original record Mr. Mercer. EP20/W15216. I attach herewith copy of Blackshaw's report concerning his interview with Mr. Truffault, together with a letter to Mr. Johnson. I shall be glad if you will have this sent on…

Scan015 Departmental memo regarding the delivery of Truffault shock absorbers for experimental purposes.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS TELEGRAMS: ROLLSROYCE-PARIS DEPARTMENTAL MEMO SHOWROOM, 102, Avenue des Champs-Elysées Téléph. : Wagg. 57-04 OFFICES :…

Scan016 Departmental memo regarding the receipt of new experimental Truffault Shock Absorbers and coordinating with Peugeot for an export permit.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS TELEGRAMS: ROLLSROYCE-PARIS SHOWROOM, 102, Avenue des Champs-Elysées, Téléph.: Wagram 82-04 OFFICES: GARAGE: STORES and…

Scan017 Departmental memo regarding the testing and valuation of Truffault shock absorbers.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR TELEGRAMS: ROLLSROYCE-PARIS PARIS SHOWROOM, 102, Avenue des Champs-Elysées Teleph.: Wag. 87-04 OFFICES: GARAGE: STORES and…

Scan018 Notes and recommendations from the inventor regarding Truffault Shock Absorbers.
View original record TRUFFAULT SHOCK ABSORBERS. The following are certain notes and recommendations which have been made by the inventor.- -------------------------- Please do not dismantle the Shock Absorbers intended…

Scan019 The trial and fitting of shock absorbers, comparing another manufacturer's methods and suggesting modifications.
View original record Nº 2. ------- deep enough in mesh; there being only the slightest marking on each of the 18 teeth. The "plateau central" on the V shaped spindle is not made of hard steel, and I think it would perhaps…

Scan020 Technical note on the Truffault Shock Absorber, discussing material changes and corrections to design drawings.
View original record Nº 3. Truffault Shock Absorber. straining point, and to avoid damaging the overhanging part of the shock absorber, as nothing must work slack by the moving backwards and forwards of the levers.…

Scan021 Departmental memo regarding the distribution of blueprints and translated notices for Truffault Shock Absorbers.
View original record AUTOMOBILES ROLLS-ROYCE (FRANCE) LIMITED 83, BOULEVARD GOUVION-SAINT-CYR PARIS TELEGRAMS: ROLLSROYCE.PARIS SHOWROOM, 102, Avenue des Champs-Elysées Téléph. : Wag. 87-94 OFFICES : GARAGE : STORES and…

Scan022 Blueprint detailing the assembly of a Truffault-Peugeot suspension system.
View original record Voiture Montage des suspensions A Truffault-Peugeot. Plan No. X Société Anonyme des Automobiles et Cycles PEUGEOT Dessiné par: Cl.H. Calqué par: [illegible] Verifié par: [illegible] Audincourt le…

Scan023 Project blueprint for a modified rear shock absorber.
View original record Amortisseur arrière modifié lors la fixation Projet

Scan024 Project for modification of an apparatus for rear mounting.
View original record Projet de modification de l'appareil en vue du montage a l'arrière Sté ANONYME DES AUTOMOBILES et CYCLES PEUGEOT 69, Rue Danton, LEVALLOIS N° d'Expédition H970 Date 1-3-16

Scan025 Blueprint of a Peugeot Truffault shock absorber with detailed component drawings.
View original record Top Row: Coquille de la suspension - 1 pièce fonte Notes: 12 trous de 6 m/m sur 100. 4 trous de 2 m/m percés sur le derrière au milieu de chaque. pas de 0 à 6. il rainure de graissage hélicoïdal…

Scan026 French language document cover page regarding the construction details of an apparatus.
View original record Détails de construction de l'appareil STE ANONYME DES AUTOMOBILES & CYCLES PEUGEOT 69, Rue Danton, LEVALLOIS Nº d'Expédition H273 Date 1.3.16

Scan027 Blueprint showing the assembly of a Peugeot-Truffault shock absorber.
View original record Amortisseur Peugeot-Truffault Montage

Scan028 Cover sheet for a document titled 'Ensemble de l'appareil' (Device Assembly), stamped by Peugeot.
View original record Ensemble de l'appareil Sté ANONYME DES AUTOMOBILES et CYCLES PEUGEOT 69, Rue Danton, LEVALLOIS N° d'Expédition H272 Date 1-3-16

Scan029 Blueprint for the assembly of the rear Truffault-Peugeot suspensions.
View original record Position dans flexion de 140 m/m Position dans rebondissement de 140 m/m Cette etude ne doit pas servir pour l'execution Voiture Société Anonyme des Automobiles et Cycles PEUGEOT Dressé par: G.L.H.…

Scan030 Project document for a rear mounting or assembly, written in French.
View original record Projet de montage a l'arrière STE ANONYME DES AUTOMOBILES ET CYCLES PEUGEOT 69, Rue Danton, LEVALLOIS Nº d'Expédition H269 Date 1-3-16

Scan031 Blueprint of a Peugeot Truffault shock absorber and its components.
View original record Projet AMORTISSEUR PEUGEOT TRUFFAULT Manivelle de la suspension 1 pièce acier mi-dur N° Rivré pas 100 à droite repère N° Levier du boulon N° D-27mm hauteur 10 1/2 Fileté à 3 pas 0,5 sur Bout H Sphère…

Scan032 Folded document cover with handwritten notes and a stamp from Cycles Peugeot.
View original record Manivelle, Billancourt attache Sᵗᵉ ANONYME DES AUTOMOBILES ET CYCLES PEUGEOT 69, Rue Danton, LEVALLOIS Nº d'Expédition H268 Date 1-3-16

Scan033 The payment and dispatch of a set of Truffault shock absorbers.
View original record COPY. To J.D. B2/D15316. 15.3.16. RE TRUFFAULT SHOCK ABSORBERS. In accordance with the valuation made by the Works in their Na15/S9316, I have today paid to Mr Truffault the sum of £8. - (which at the…

Scan034 Truffault Shock Absorbers, instructing the Experimental Department to report on the cost.
View original record R.R. 238 B (200 T) (S.C. 538 18-2-16) G. 1547. 762 C O P Y. To D. from J. 20th. March 1916. CJ19/E20316. RE TRUFFAULT SHOCK ABSORBERS. Attached please find memo from Mr Berend, re the above. Please…

Scan035 Requesting an update on the delivery of Truffault shock absorbers.
View original record To EP for Mr Thornton from St. 89/DB22516. May 22nd, 1916. RE TRUFFAULT SHOCH ABSORBERS. We have a report to make upon the above, and should be pleased if you could let us know when we received these…

Scan036 Chasing the delivery of Truffault shock absorbers from Paris.
View original record EP to Mr.Stent. EP/T43/F25516. Re Truffault Shock Absorbers. With reference to your memo S9/DB22516, it was arranged that a set of these shock absorbers should be sent on to us from Paris as soon as…

Scan037 The delayed arrival of a set of Truffault Shock Absorbers from Paris.
View original record To D. from St. RE TRUFFAULT SHOCK ABSORBERS. With reference to the attached re Truffault Shock Absorbers, which has been handed to me, will you please note that these have not yet come to hand. It was…

Scan038 Arrival and fitting of Truffault shock absorbers.
View original record To R. from St. c. to J. c. to EP. RE X.762 - TRUFFAULT SHOCK ABSORBERS. 1 set of the above shock absorbers and accessories have come to hand from Paris, and we are handing them to Mr Platford to fit…

Scan039 Value of Truffault shock absorbers after examination.
View original record To D. from St. St5/DB28716. July 28th, 1916. RE X.762 - TRUFFAULT SHOCK ABSORBERS. With reference to the attached memos, from Mr Johnson CJ19/E20316 and Mr Berend B2/D15316 regarding the above, we are…

Scan040 Memo regarding the dispatch of parts and a query to Mr. Royce.
View original record Mr Nadin RA. 33 37. 97 75. Hul 87cts These parts were sent to Mr Slint by Stores, who passed them on to Mr Platford. Mr Slint has also written to Mr Royce asking if he requires them fitting to his…

Scan041 Internal order form for shock absorbers and related vehicle components.
View original record Mr Alvey E/P 1241 ORDER OFFICE JUL 24 1916 24. 7. 16 From Jall Radclyffe Paris On 15 Rly. Pass. in 1 Case 3245 Derby 4 Graffuelt Shock absorbers 1 do do (Sample) 1 Square Plate 2 Steel - Keeps 13…

Scan042 Attaching previous correspondence regarding Truffault Shock Absorbers X.762.
View original record EP to St. File Please EP/T22/F8816. Re Traffault Shock Absorbers X.762. ------------------ With reference to your memo St17/DB8816, I attach herewith previous correspondence which has taken place on…

Scan043 Payment for and seeking an opinion on Truffault Shock Absorbers.
View original record R.R. 235 H (200 T) (S.C. 536. 15-2-16) G. 1547. Re Truffault Shock Absorbers. St. Eu4/FB11816. 11th. August. 1916. In accordance with your memo ref. St5/IB28716, we have advised Paris that the above…

Scan044 Use of Trauffault Shock Absorbers and experiments to improve chassis performance.
View original record R.R. 925 A (400 T) S.C. 595. 15-8-16: G. 1546. To Clk from R. c. to Hy. c. to Rs. c. to EP c. to EY. c. to J. COPY. RS/W21916 21.9.16 RE TRAUFFAULT SHOCK ABSORBERS. With reference to Trauffault Shock…

Scan045 Shipment of a specimen Trauffault Shock Absorber and a complete set.
View original record To R. from EFC. Copy to J. 25th September, 1916. EFC4/G25916. X.762 - TRAUFFAULT SHOCK ABSORBERS. We are instructing the Shipping Dept. to forward you a specimen Trauffault Shock Absorber. We have, in…

Scan046 Despatch of a Trauffault Shock Absorber to Mr. Royce.
View original record To D. for Mr. Roney from EFC. 25th September, 1916. EFC2/G25916. X.762 - TRAUFFAULT SHOCK ABSORBERS. I have instructed Mr. Coverley to send over to you one Trauffault Shock Absorber, and I am…

Scan047 Requesting the experimental fitting of a set of X.762 Trauffault rear axle shock absorbers to car 7CA.
View original record R.R. 225A (400 T.) (S.C. 536. 15-2-16) G. 1546. To Wor. for Mr. Coverley. from EFC. Copy to Hy 26th September 1916. BY/EFC2/MP26916. X .762 Trauffault Shock Absorbers. Mr. Royce is anxious to have…

Scan048 The experimental fitting of X.762 shock absorbers to a 7CA vehicle.
View original record R.R. 225A (400 T) (S.C. 536. 15-2-16) G. 1546. To Ry. for Mr. Macmillan from EFC. 26th September 1916. BY/ERC3/MP26916. X78 X.762 SHOCK ABSORBERS. Mr. Royce has expressed a desire to have a couple of…

Scan049 Requesting a report on Truffault Shock Absorbers.
View original record R.R. 25M.(400) T. & S.C. No. FROM DEC. 28th September 1916. EFC24/MP28916. Re 7.CA. With reference to the last paragraph of Mr. Royce's memo. R4/W21916, headed "Truffault Shock Absorbers", addressed…

Scan050 Spring friction, shock absorbers, and potential suspension improvements for a post-war chassis.
View original record X.762. X.2565. Post-War Chassis. -8- R6/W3.10.16. Contd. with very little oil, or preferably with paint only, and that the car will be run long enough so that the springs, are in a normally average…

Scan051 Following up on an instruction regarding Truffault shock absorbers for experimental chassis 7-CA.
View original record R.R. 255 a (400 T.) S.C. 586 15-2-16) G. 1546 To Hy for Mr. Burton from EFC. 7th October 1918. EFC13/MP71016. X.762 TRUFFAULT SHOCK ABSORBERS. We would refer you to our memo. BY/EFC3/MP26916, in which…

Scan052 Forwarding and requested return of a Truffault Shock Absorber.
View original record To R. from EFC. R.R. 25M-1000 T./S.C. 386 16-5-16) G. 1545. 10th October 1916. EFC9/MP101016. X.762 TRUFFAULT SHOCK ABSORBERS. At your request, we forwarded to you on Sept. 25th, 1916, one complete…

Scan053 Completed experiments on carburettors and shock absorbers handed over for testing.
View original record To EFC. from Mr. Coverley. RHC7/T11117. 11th January 1917 X. 762 The following experiments have been completed and handed over for test, X.2663 - S.U. Carburetters. X.2664 - White& Poppe Carburetter.…

Scan054 Feedback on Truffault shock absorbers on chassis 7- C.A.
View original record R.R. 235A (499 T) (S.C. 536 15-2-16) G. 1546. To J. for R. from EFC. c. to J. v. to By. c. to By/KB. c. to EF. EFCG/T2317. 9th March 1917. X.762 - TRUFFAULT SHOCK ABSORBERS ON 7- C.A. Re above shock…

Scan055 Post-war engine improvements, camshaft experiments, and lending parts for trials in Spain.
View original record C O P Y. To Hy. from R. c. to J. " " E. " " EFC. COPY. X.762. R4/B.13.3.17. FE CAR ENGINE. X.762.- Many thanks for Mr. Clark's note with reference to shock absorbers. You will remember that we are…

Scan056 Overhaul and a list of 11 proposed improvements for car RE 7C.
View original record X.762 EHL/AT19.4.17. To R. from EH. c. to J. " " By. " " E. X.682 - RE 7C. A. CAR. This car is at present being overhauled and the bearings in the engine are being done up. When the engine is…

Scan057 Continued list of vehicle component specifications and modifications.
View original record -2- Contd. X.1422. 12. Aluminium brake straps. 13. No intermediate bearings to propeller shaft. 14. Gleason double gears in rear axle. X.2650 15. Rear springs and brackets are being made so that…

Scan058 Proposed modifications to the 7 CA car engine, focusing on pistons, connecting rods, valves, and camshafts.
View original record R.R. 285 a (400 T) (S.C. 836 15-2-16) G. 1546. X.2938 R1/B2.5.17. X.762 To Ell. from R. c. to J. c. to WOP c. to By. c. to M. X+682 - RE CAR ENGINE 7 CA. In reply to your memo EIl/AT19.4.17, I am…

Scan059 Improvements to gearbox oil retention, suspension, and the lightening of the back axle.
View original record 2. cams, we think, would be of much use. Regarding the gear box, I should be glad to know if you and Mr. Bailey are impressed that this is satisfactory from an oil retaining point of view. It is quite…

Scan060 Extract detailing the fitting of experimental Truffault shock absorbers to the back of a car.
View original record X. 762 Extract from EH1/AT4.6.17. YCA. This car will have the following experimental parts fitted to it.:- (21) Truffault shock absonbers on the backl

Scan061 Alteration note number 158 for a Truffault shock absorber bracket X.762A, including a dimensioned sketch.
View original record To O.O. from BY/RB. c. to Mr Hives. c. to Mr Coverley. c. to EFC. 9th June. 1917. BY/RB1/P9617. TRUFFAULT SHOCK ABSORBER - X.762A Please note alteration 158F. This consists of lengthening the shock…

Scan062 Experimental parts fitted to chassis 7 C.A.
View original record X.762 To Mr. Clark from FHC 13.6.17 RE CHASSIS 7 C.A. The above chassis has been fitted with the following expl. parts X.2963 Fitted with valves E.13154 Aero Valve Plugs in the End.…

Scan063 Extract detailing parts fitted to car 7 C.A. for Mr. Royce, including springs, shock absorbers, and a speed indicator.
View original record R.R. 15B B (380 H) S.D. 442. 9-8-17) G. 1966 X. 782 Extract from EH1/AT15.6.17. The following parts were fitted to 7 C.A. deliveredto Mr. Royce. X.2650. 20. Rear Springs, standard type, brackets made…

Scan064 Road test report on Chassis 7 CA, detailing engine, clutch, and suspension performance.
View original record To EH. from R. c. to J. X. 762. R5/B4.7.17. X.682 - Re Chassis 7 CA. X.2937A¹. I was pleased to find that the valve gear on this car appeared to be quite silent. Even allowing that the mamshaft was…

Scan065 Performance and theory of shock dampers with variable damping effects.
View original record Contd. 2. X. 762 understood that the shock dampers fitted had a certain amount of free range without any damping effect, than a range with half damping effect, and then full damping at the greatest…

Scan066 Fitting of experimental pistons with narrow rings to Wing-Commander Briggs' car.
View original record To EP.) from R. EH. C to Commander Briggs. C to J. X.762. R4/B4.7.17. X.682 RE WING-COMMANDER BRIGG'S CAR. X.2369 X.2809 On a recent occasion during a visit to Commander Briggs re aero engines, I rode…

Scan067 Proposed post-war camshafts and observations on springing, shock absorbers, and braking on a specific vehicle.
View original record -2- new camshafts that we propose using in the "after the war" engines. This should not be the temporary arrangement but the permanent arrangement. When you fit this, it will be necessary to fit the…

Scan068 Potential car alterations for post-war models, focusing on wheel clearance and suspension.
View original record -3- with the frame, the top of the wheel rubs the body. Possibly we may get a coach-builder to increase this clearance if Commander Briggs agrees that it shall be attempted. The risk of the tyres…

Scan069 Petrol consumption of the 7 CA car and production delays for new rocking arms and camshafts.
View original record To R. from EH. c. to BJ. c. to E. & Cy. c. to Hy. c. to EP. X.762 EH6/LG10.7.17. X.682 - 7 CA CAR With reference to the petrol consumption on this car Mr. Platford has run this car for a long run. The…

Scan070 Camshaft and shock absorber options for Commander Briggs' car, awaiting a decision from Mr. Royce.
View original record 2. latest cams in the same way as the present ones. We should like to have Mr. Royce's decision re camshaft for Commander Briggs car. With regard to shock absorbers on 7 C.A. these are as Mr. Royce…

Scan071 Revisions to the 'After the War Chassis' for a potential American model, including suggested improvements to valve lift and compression.
View original record To R. from EH. Copy to W. " " Wor. " " EP. " " By. " " E. X.762. EHL/LG19.9.17. 19th Sept 1917. 2565 X.682. AFTER THE WAR CHASSIS. X.3185. It is now about 12 months since the points to be incorporated…

Scan072 List of technical recommendations and observations on various car components and specific models.
View original record -2- attribute most of this due to increase in compression. On the old cars the amount of compression we could run with was decided by detonations. 7.CA with the 4.33 compression ratio, does not…

Scan073 Construction of a new chassis, mentioning the need for a Self Starter and its suitability for the American market.
View original record -3- and a large number of other parts are mostly out of date. X.1300. 49.GB. This needs a number of parts fitting to bring it up to date. The most important item is the Self Starter. It would be…

Scan074 Meeting memo detailing design changes to be incorporated into the post-war car chassis.
View original record R.R. 28A A G70 H.S.D. 442. 2-5-17. G 1986 To R. from EH. Copy to RJ. " " Wor. " " Rp. " " By. " " E. EH2/LG19.9.17. 19th Sept 1917. X.682. AFTER THE WAR CHASSIS. 2565 It was decided on August 14/8/16…

Scan075 List of engineering specifications and modifications, page 2.
View original record R.R. 235 A (770 H) S.D 442. 24-2-17; G. 1965 -2-. 14. Self Starter six volts (afterwards changed to 12 volts.) 15. Lucas Dynamo to generate sufficient current for the lamp at 15 m.p.h. Belt pulley…

Scan076 Inquiring about the progress of experiments on Truffault Shock Absorbers.
View original record Re Truffault Shock Absorbers. X.762 Mr. Clark D.O. L17/B21017. We have a note from you dated last November saying that these shock absorbers were then being fitted to 7 C.A. and that you hoped to have…

Scan077 Confirming positive results for Truffault shock absorbers on an experimental chassis and the decision to fit them to the 'After-the-War' chassis.
View original record To D. for L. from EFC, EFC6/T2.10.17. RE X. 762 - TRUFFAULT SHOCK ABSORBERS In answer to yours L17/B2.10.17, the Truffault shock absorbers were fitted to our experimental chassis 7 C.A. in December or…

Scan078 Unsatisfactory Zephyr type pistons causing knocks and failures, intended for an after-the-war chassis.
View original record X.Y62 X.2565. To R. from EH. c. to CJ. c. to E. c. to By. c. to Da. c.to EP. EH1/LG.221018. X.2762 X.762. X.3014 X.3082 X.2565 X.3129. X.2748 X.2369 RE AFTER-THE-WAR-CHASSIS We understand it has been…

Scan079 Fitting Trauffault-style shock absorbers to an after-the-war chassis.
View original record R.R. 235A (500 T) (S.D). 408. 26-4-17.) Bm. 2/156/13. Contd:- Officials who have to sell the cars, might give their opinions whether piston knocks can be accepted. X.762+ (2) SHOCK ABSORBERS 7-CA. is…

Scan080 Specification of alterations for the 40/50 HP chassis (R7/G181218) to be applied to 500 units.
View original record To Wor. from E. c. to BY. c. to DA. c. to EH. c. to EP. X.762 8th January 1919. E2/C8119. RE 40/50 H.P. CHASSIS Please find attached a specification of the alterations to be made to the 40 -50 H.P.…

Scan081 Alterations and experimental work for the 40/50 HP present type chassis, model X.2565.
View original record To BY } EP } EH } c. to CJ. c. to WGR. 18th December 1918. R7/G181218. Compiled by Mr. Elliott. RE ALTERATIONS TO 40/50 H.P. PRESENT TYPE CHASSIS X.2565 OBJECT:- The object of this report is to set…

Scan082 Selection of wheels and the design of shock dampers.
View original record R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. -9- R7/G181218. Contd. ------------------ To EY. DA & EH. from R. (14) WHEELS. X3476 X421 X3482 Rudge-Whitworth and Michelin wheels Mr. Royce…

Scan083 The specifications for Trufault shock absorbers for the front and back of a car.
View original record R.R. 235A (500 T) (S.D. 408. 25-4-17.) Bm. 2/156/13. To E. from EH. EH2/LG29.1.19. 29th January 1919. X.762. RE- TRUFAULT SHOCK ABSORBERS The only shock absorbers we have at the works of this type are…

Scan084 Observations on the bouncing of the rear axle on a 40/50 chassis car at different speeds and with varied passenger loads.
View original record To R. from EH. c. to CJ. c. to Bn. c. to E. c. to Da. XY62 EH1/LC29.5.19. RE 40/50 CHASSIS X.3461. X.2631. We have made some observations of the bouncing on the rear axle on 49-GB Car. The car was run…

Scan085 Road tests comparing car performance with and without Truffault Shock Absorbers.
View original record Contd. -2- EHL/LG29.5.19. We also happened to have at the works for repair Col. Briggs' old car which you will remember we fitted with Truffault Shock Absorbers. We tried this car over the same piece…

Scan086 Instructions regarding Truffault shock absorbers on chassis 7CA, detailing required weights for movement.
View original record R.R. 26 10M Bks.) (H & S 591 13-3-18). M.P. 189338 X.762 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Hives Order No. Customer's No. Truffault Shock absorbers on Chassis 7CA A greater weight is needed to…

Scan087 Comparing bronze plates against steel and fibre plates for use in rear shock absorbers.
View original record X.762. To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. c. to By. X.3461b. R.R. REAR SHOCK ABSORBERS. We have fitted a pair of R.R. shock Absorbers with bronze plates. This means that we have…

Scan088 The increased friction measurement of Ferodo Discs in a shock absorber on the 6.EX car.
View original record Contd. -2- Hsl/LG13.11.20. X. 3923a. With reference to Ferodo Discs which we have on 6.EX car. We measured the friction on the shock absorber which had not been dismantled and found that the friction…

Scan089 And comparing different shock damper patterns such as scissors, Hartford, and Truffault.
View original record To Hs. from R. c. to CJ. X762 R1/M29.12.21. X.1152 - SHOCK DAMPERS. X.3461. Regarding scissors pattern, I do not think this as good as that used on the front of the 40/50. It was the original…

Scan090 Letter from Rolls-Royce America regarding the use of Truffault shock absorbers on sports cars to address front-wheel wobble and for high-speed use.
View original record + 762 Rolls-Royce America Inc., Springfield, Mass. April 12th. 1928. Na5/B41228. Att. Mr. Hives. c. to Mr. Bailey. Mr. Basil Johnson, Rolls-Royce Ltd., 14-15 Conduit St., London, England. +457 +235…

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