Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Test notes for shock absorbers. | ||
| View original record | R.R. 148 (6 II) (A. 742. 30.11.08) G. 6451. X832 108 300 SHOCK, ABSORBERS Tested and found to compress 7" in 4 seconds with 1 cwt. on end of arm. Nick. Solid setting. 20 lbs in 4 to 8 seconds a end of… | ||
| Scan002 | Test results for a shock absorber spring, detailing the force required for different compression levels on Chassis 1291. | ||
| View original record | X832 [Illegible crossed out text] 103 300 re Shock absorbers. Tests taken by E.P. on Shock absorber spring T-256 19 to 23-5-10 - on Chassis 1291. Comp: of spring Lbs. required at end of lever to… | ||
| Scan003 | Report card detailing experiments and modifications for springs in shock absorbers. | ||
| View original record | R.R. 512 (2 1/2 H) X. 488. a.r.12.) G 2273. S.H. A. X832 Section 300. Description: Springs in Shock absorber.. Date: 28/2/12. Report: Sheet from D.O. under "S" in abeyance file. Suggesting Experiments… | ||
| Scan004 | Report card detailing shock absorber adjustments. | ||
| View original record | First suitable adjustment for these 40 lbs may be ok for heavy bodied cars but should not some be set lighter for lighter loads. Noted Settled 57% of load for 3/4 elliptic. 47% for inverted. RAH | ||
| Scan005 | Advisability of lubricating front spring leaves and using shock absorbers. | ||
| View original record | R.R. 657. (100H) (XX 659. 30.10.13) E.P. 5294. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and Indicating letter. Initial of person… | ||
| Scan006 | Fitting of shock dampers and lubrication of front springs, seeking Mr. Royce's opinion on the matter. | ||
| View original record | R.R. 295A (150 m) (XX. 530. 8.10.13) E.P. 5156. WOR/SM23/M241113. Na. Lubrication of front springs. XP32 In reply to your memo Na/S11/LG191113 Mr Haldenby reports:- "I think we should continue to fit… | ||
| Scan007 | Requesting experimentation on a set of Carter Shock Absorbers being sent from New York. | ||
| View original record | To EFC. - from Wor. X832 CP21/M9.6.19. X389T Carter Shock Absorbers Please note Mr.Caswell is sending us from New York a set of Shock Absorbers supplied by Mr. R.S.Carter. These are the shock… | ||
| Scan008 | Performance and design of Gabriel Snubber shock absorbers fitted to a Packard car. | ||
| View original record | H.R. 283A (100) (S.H. 159. 11-8-20) G. 2200 X832 To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. c. to EP. Hs5/LG8.11.20. X.1494. GABRIEL SNUBBERS. X832. X.435. EP. has reported that the best… | ||
| Scan009 | The Mack Rubber Shock Absorber, attaching a related letter and enclosures. | ||
| View original record | R R 100 x (10T) S H 163, 24-9-20) G 2/43 X832 to. H from BJ. c. to HS. c. to EP. Handwritten notes: HS files. Matter for very new a Scan at Springfield. Probably good commercial job for jobs under… | ||
| Scan010 | Letter from Rolls Royce of America regarding folders for the Mack rubber shackle and shock absorber. | ||
| View original record | Oy4-W-21922 September 21, 1922. Mr. Claude Johnson, Rolls-Royce, Limited, London, England. Copy for Mr. Royce, Hs., E. P. Re Mack Rubber Shock Absorber Dear Sir: COPY We enclose folders referring to… | ||
| Scan011 | Letter from the International Motor Company comparing the advantages of their rubber shackles over various foreign spring mechanisms. | ||
| View original record | INTERNATIONAL MOTOR COMPANY Engineering Dept. 64th Street & West End Ave. Branch Letter #245 (3 sheets) New York, August 4, 1922. RECEIVED SEP 13 1922 ROLLS-ROYCE OF AMERICA INC. TO BRANCH MANAGERS… | ||
| Scan012 | Page 2 of a letter from the Chief Engineer discussing new rubber shackles and a rubber shock insulator. | ||
| View original record | Branch Letter #245 (3 sheets) - 2 - 8/4/22 arrangement; however, it requires besides the extra springs and accompanying parts, the use of two more pins and bushings than are commonly used in the… | ||
| Scan013 | Blueprint showing multiple views and sections of a vehicle's leaf spring suspension system. | ||
| View original record | Branch Letter #245 (Sheet No. 3) A C D E F | ||
| Scan014 | Attaching a copy of a letter and enclosures regarding a Mack Rubber/Shock Absorber. | ||
| View original record | R R 960 s(sDT) S H r63, 24-9-20) G 2843 1832 To A. from BJ. c. to Hs. c. to EP. BJ/Py12/D2.10.22. Re: Mack Rubber/Shock Absorber. I attach hereto copy of letter Oy4-W-21922 with regard to the above,… | ||
| Scan015 | Correspondence from Rolls Royce of America regarding the Mack Rubber Shock Absorber and rubber shackles. | ||
| View original record | Oy4-W-21922 September 21, 1922. Mr. Claude Johnson, Rolls-Royce, Limited, London, England. Copy for Mr. Royce, Hs., E. P. Re Mack Rubber Shock Absorber Dear Sir: [Red stamp over text: COPY] We enclose… | ||
| Scan016 | Technical letter discussing the advantages of rubber shackles over foreign suspension mechanisms. | ||
| View original record | INTERNATIONAL MOTOR COMPANY Engineering Dept. 64th Street & West End Ave. New York, August 4, 1922. Branch Letter #245 (3 sheets) TO BRANCH MANAGERS Subject:- ADVANTAGES OF OUR RUBBER SHACKLES OVER… | ||
| Scan017 | Letter from the Chief Engineer discussing suspension arrangements and the superiority of new rubber shackles. | ||
| View original record | Branch Letter #245 (3 sheets) - 2 - 8/4/22 arrangement; however, it requires besides the extra springs and accompanying parts, the use of two more pins and bushings than are commonly used in the… | ||
| Scan018 | Cutaway diagram illustrating the internal mechanism of a Lovejoy shock absorber. | ||
| View original record | A-77. File under Lovejoy Shock Abs. Oej Nov. 5. Labels on diagram: A, B, C, D, E, F, G, P, S. | ||
| Scan019 | Blueprint showing different views and cross-sections of a leaf spring suspension system. | ||
| View original record | Branch Letter #245 (Sheet No. 3) A B C D E F | ||
| Scan020 | Special springs from Messrs. Terry's for shock absorber work and comparing them to the company's own. | ||
| View original record | X832 Hs. BY5-P18.8.23. We are handing you herewith some special springs submitted by Messrs. Terry's for shock Absorber work. We would like you to try these on a car and let us know whether you… | ||
| Scan021 | Expected arrival of a case containing rear Lovejoy shock absorbers from Springfield. | ||
| View original record | Y832 c. to Hs. D/BP/Y342/OG16.11.23 re - Case No. 80 ex Springfield Please expect from Messrs. Rolls-Royce of America Ind. Springfield, Mass, a small case numbered as above containing a set of rear… | ||
| Scan022 | Rubber Shock Insulators, attaching a copy of another document and blueprints. | ||
| View original record | To [REDACTED] from BJ. c. to Hs. c. to [REDACTED] Handwritten: V832 BJ/Py19/D19.11.23. Re: Rubber Shock Insulators. -------------------------- I attach copy of Oy2/E/11823 of November the 8th,… | ||
| Scan023 | Letter discussing proposals for adopting rubber shock insulators on the 40/50 HP chassis. | ||
| View original record | Oy2-E-11825 November 8, 1925. Mr. Claude Johnson, Rolls-Royce, Ltd., London, England. (Copy for attention of Mr.Royce " " " " Mr.E.H.Hives " " " " Mr. Day) Dear Sir: Re: Rubber shock Insulators. We… | ||
| Scan024 | The development and testing of rear spring brackets and insulators, including results from a Hupmobile test vehicle. | ||
| View original record | Oy2-E-11823 -2- (2) The rear spring drawings show, III the front end bracket of the rear spring with first attempts at rear axle and centre brackets, IV the revised rear axle bracket, V, the general… | ||
| Scan025 | Letter from Rubber Shock Insulator Company regarding blueprints and sketches for a rear spring bracket. | ||
| View original record | RUBBER SHOCK INSULATOR COMPANY New York City. October 25, 1925. Mr. Maurice Olley, Rolls-Royce of America, Springfield, Mass. Dear Mr. Olley: We are sending herewith blueprints of the rear spring rear… | ||
| Scan026 | Letter from The Rubber Shock Insulator Company, Inc. regarding the adoption of rubber shackles in the automotive industry. | ||
| View original record | X832 THE RUBBER SHOCK INSULATOR COMPANY, INC. 252 WEST 64TH STREET NEW YORK TELEPHONE COLUMBUS 9600 February 3, 1923. RUBBER SHACKLES HAVE MADE REAL HISTORY IN THE AUTOMOTIVE WORLD 4079 MACK trucks… | ||
| Scan027 | Letter from Mack Motor Truck Company regarding bus components and a design suggestion for a door hinge. | ||
| View original record | MACK MOTOR TRUCK COMPANY TO ENGINEERING DEPARTMENT FROM PROVIDENCE BRANCH ATTENTION OF MR. Masury January 30th, 1923. DATE SUBJECT BUSES Dear Sir: The man in charge of the buses now operated by the… | ||
| Scan028 | Blueprint from the Rubber Shock Insulator Co. illustrating the benefits of using rubber shackles on a car. | ||
| View original record | THE RUBBER SHACKLE CAR. A car equipped with Rubber Shackles Means 12 Less oiling points Absence of Shackle noise Less Chassis Vibration Greater Tire mileage. RUBBER SHOCK INSULATOR CO. 252 WEST 64th… | ||
| Scan029 | The reverse side of a document marked with a 'FINISHED' stamp. | ||
| View original record | FINISHED FEB 3 1923 INTERNATIONAL 84th ST. WEST END AVE. N | ||
| Scan030 | Letter from Wm. Griffith & Sons, Ltd. proposing a demonstration of their A.E.F. Shock Absorbing Device. | ||
| View original record | TELEGRAMS: "VILVALLE, LONDON." A.B.C. CODE, 5TH EDITION. WM. GRIFFITH & SONS, LTD. 38, Victoria Street, WESTMINSTER. NAPIER STEEL & SPRING WORKS, SHEFFIELD ESTABLISHED 1863 London, S.W.1. 26th… | ||
| Scan031 | Telegram from F. S. Duesenberg regarding the performance of rubber shock insulators on a race-winning Duesenberg car. | ||
| View original record | POSTAL TELEGRAPH - COMMERCIAL CABLES CLARENCE H. MACKAY, PRESIDENT TELEGRAM CLASS OF SERVICE DESIRED FAST TELEGRAM DAY LETTER NIGHT TELEGRAM NIGHT LETTER The sender must mark an X opposite the class… | ||
| Scan032 | Attaching information about Lovejoy shock absorbers becoming a standard fitting on Springfield-made chassis. | ||
| View original record | R. c. Hs. c. BY. c. BJ. Y832 EP2/H9.10.24. re. Lovejoy Shock Absorbers. As instructed by BJ. in his memo BJ/Py5/D18.7.24 I attach herewith information we have received from Springfield with reference… | ||
| Scan033 | Letter from Rolls-Royce of America to Rolls-Royce Ltd. in England regarding the qualities and adjustability of Lovejoy shock absorbers. | ||
| View original record | ROLLS-ROYCE of America. Springfield. Mass. Oy3/E-92424. Sept. 24th.1924. Mr. E. Platford. Rolls-Royce Ltd., Derby, England. re. Lovejoy Shock Absorbers. Dear Mr. Platford, Have just come across notes… | ||
| Scan034 | Technical notes on shock absorber settings and spring specifications. | ||
| View original record | - 2 - (6) Although depending on hydraulic resistance, it does not force oil through a small orifice but lifts a valve of reasonable size against a comparatively soft spring. Therefore the effect of… | ||
| Scan035 | Comparative analysis of various shock absorber and spring types for different car models. | ||
| View original record | -3- (7) Contd. For rough touring generally, we use 40 lb. springs without packing in 1st. stage. In extreme cases we fit 80Lb. springs in the rear on covered cars. For open touring cars, i.e.… | ||
| Scan036 | Use of alternative shock absorbers and a personal test of Lovejoy shocks. | ||
| View original record | -4- We do not consider at present that it would be advisable to use them in front, as we think the present type of Rolls-Royce shock absorbers acting in both directions (with perhaps a rather longer… | ||
| Scan037 | Letter of introduction for a sales manager and a recommendation for Lovejoy shock absorbers, detailing four key benefits. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy1-E-42725 April 27, 1925. Mr. E. W. Hives, Chief Expl.Engineer, % Rolls-Royce Limited, Derby, England. Dear Mr. Hives: This note is to introduce Mr.… | ||
| Scan038 | Letter discussing the adaptation of racing-car type aluminum shock absorbers for passenger cars. | ||
| View original record | Oy1-E-42725 -2- April 27, 1925. Because of the strap connection the unsprung weight is actually small. Mr. Lovejoy has been working on a set of aluminum shock absorbers of which he has sent you… | ||
| Scan039 | Letter from Lovejoy Manufacturing Company regarding two sets of hydraulic shock absorbers for testing. | ||
| View original record | 4832 LOVEJOY MANUFACTURING COMPANY Makers of LOVEJOY HYDRAULIC SHOCK ABSORBERS 39 BRIGHTON AVENUE BOSTON, MASS. July 23, 1925. Mr. E. V. Hives, Chief Experimental Eng., Rolls Royce, Limited, Derby,… | ||
| Scan040 | Proposal to purchase and test 'Elland' shock absorbers from Frank Smith & Co. (Elland) Limited. | ||
| View original record | X.832 [strikethrough]Wd.[/strikethrough] c. Hs. BY10/H. 28.9.25. ---------------- MESSRS FRANK SMITH & CO. (ELLAND) LIMITED. ------------------------------------------ "I attach hereto copy of a… | ||
| Scan041 | Letter from Frank Smith & Co. regarding a trial order for Smith Shock Absorbers. | ||
| View original record | Copy FRANK SMITH & CO. (ELLAND) LIMITED. MOTOR ENGINEERS. HUDDERSFIELD ROAD. ELLAND. 25th September, 1925. R.W.Harvey Bailey. Esq. C/O. Messrs Rolls Royce Ltd. Derby. Dear Sir, Referring to the… | ||
| Scan042 | The performance of 'Lovejoy' hydraulic shock absorbers. | ||
| View original record | R.R. 498A (50 M) (D.D. 31, 12-8-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. +832 REF Hs/Rnl/LG231025 To R. from Hs/Rn. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. c. to GY 'LOVEJOY' SHOCK… | ||
| Scan043 | The failure of a Lovejoy shock absorber following rig testing. | ||
| View original record | FAILURE OF LOVEJOY SHOCK ABSORBER DOWEL PIN LOCATION BROKEN HERE BEARING DISTORTED. DOWEL PIN HOLE WORN OVAL AND DISTORTED. BOTH SHOCK ABSORBERS FAILED AFTER 155 HOURS RUNNING ON BUMPING RIG. | ||
| Scan044 | Running experience of Phantom and India cars, chassis weight reduction, and hydraulic shock absorber development. | ||
| View original record | To CJ. from R. c. to Hs. BY. 4832 R2/M27.10.25. RE: RUNNING OF PHANTOM AND INDIA. X. 8770 X. 235 X. 8770 X. 832 We had some running experience of the cars last weekend - i.e. 8-EX and India (which are… | ||
| Scan045 | Letter from Maurice Olley of Rolls-Royce of America to E.W. Hives of Rolls-Royce Ltd., thanking him for a report on Lovejoy Shock Absorbers. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X832 Oy11-E-11925 November 9, 1925. Mr. E. W. Hives, Rolls-Royce, Ltd., Derby, England. Dear Mr. Hives: Many thanks for your very favorable report… | ||
| Scan046 | Request to arrange for a pair of Louis Renault hydraulic shock-absorbers to be sent for comparative testing. | ||
| View original record | X832 M/to: PN/DN10.12.25. TO MK c. to BJ & Hs FROM PN You will remember that Louis Renault offered to let us have a specimen of his hydraulic Shock-Absorber if we wished to tast it, and that we should… | ||
| Scan047 | Instructions regarding the return and ordering of Berkshire and Houdaille hydraulic shock absorbers. | ||
| View original record | To ROY. from Hs. c. to Mr. Chatwin. .4832 X1152 Hs1/LG14.1.26. We are sending into the Stores :- 4 Berkshire [overtyped text] Hydraulic Shock Absorbers. 2 Houdaille Hydraulic Shock Absorbers. Will you… | ||
| Scan048 | Reliability and use of Lovejoy shock absorbers and their similarity to a new RR design. | ||
| View original record | To BY. from Hs. 4832 Hs3/LG3. 2. 2. 26. LOVEJOY SHOCK ABSORBERS. Referring to the attached note from BJ. in connection with the above. We cannot say definitely whether Lovejoy shock absorbers have… | ||
| Scan049 | Letter regarding a new one-way, oil-filled shock absorber from a Mr. F. Delves. | ||
| View original record | "HS" DERBY XP32 HK7/MM.6.2.26. Dear "HS", A friend of mine, Mr. F. Delves, of 117, rue Caulaincourt, Paris, has just brought out a one way shock absorber, which is oiled filled. I showed this to "OJ"… | ||
| Scan050 | Letter to 'Maco' Template & Eng. Co. Ltd. requesting blueprints for a set of hydraulic shock absorbers. | ||
| View original record | 4832 Expl: Dept: Hs/Rnl/LG. 8th. Feb. 1926. The 'Maco' Template & Eng. Co.Ltd., Audry House, Ely Place, London. Dear Sirs, For the attention of Mr. Delves. We have heard from our Col. Hawkins, Paris… | ||
| Scan051 | Letter from Maco Template & Engineering Co. Ltd. regarding shock absorber blueprints and a patent specification. | ||
| View original record | 4832 DIRECTORS: S. THOMAS, MANAGING DIRECTOR. F. J. DELVES. H. W. SECCOMBE WILLS. COL. G. DAVIDSON, D.S.O. OUR REF. RC/2179 YOUR REF. HS/RAL/L9 INLAND TELEGRAMS: TEMPLATES, SMITH, LONDON. FOREIGN… | ||
| Scan052 | Flaws of Houdaille type shock absorbers and the development of a proprietary hydraulic version. | ||
| View original record | To HK. Paris. From Hs. Y832 Hs3/LG23. 2. 26. SHOCK ABSORBERS. Y832 X1152 HK7/MM6. 2. 26. With reference to the shock absorbers of which we have received prints. This shock absorber is of the Houdaille… | ||
| Scan053 | Letter discussing the use and testing of Lovejoy shock absorbers to address high-speed wobble and shimmy issues. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X832 Oy8-E-22326 February 23, 1926 Mr. E. W. Hives, Mickleover, near Derby, England. Dear Hives: Re Lovejoy Shock Absorbers In conversation with Mr.… | ||
| Scan054 | Letter discussing front spring deflection and the purpose of the stiff front springs on the Phantom model. | ||
| View original record | OyS-E-22326 -2- February 23, 1926. all American cars he has tried. I thought of trying front springs with as much as 4" or 4-1/2" deflection to the normal position, to see whether this would not give… | ||
| Scan055 | Letter discussing the mounting, standardization, and patent issues of Lovejoy versus R.R. hydraulic shock absorbers. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Y832 Oy9-E-22426 February 24, 1926. Mr. E. W. Hives, Mickleover, near Derby, England. Dear Hives: 1. I attach two prints showing details of mounting the… | ||
| Scan056 | Front brake freezing issues on a Phantom vehicle during a run to Boston. | ||
| View original record | Oy9-E-22426 -2- Feb. 24, 1928 3. Front Brakes. I attach 5 photos of the front end of the Phantom taken last week-end on a run to Boston and back. There was a temporary "sun-thaw" which made pools of… | ||
| Scan057 | Installation instructions and parts list for front Lovejoy hydraulic shock absorbers. | ||
| View original record | LOVEJOY HYDRAULIC SHOCK ABSORBERS. ROLLS-ROYCE FRONT. IMPORTANT, - Read all instructions carefully before installing. ABSORBERS ARE SECURED TO OUTSIDE OF FRAME IN BACK OF AXLE. DRAWINGS SHOWN BELOW… | ||
| Scan058 | Instructions for determining the correct arm position on Lovejoy hydraulic shock absorbers for horizontal bodies. | ||
| View original record | LOVEJOY HYDRAULIC SHOCK ABSORBERS. HOW TO DETERMINE THE CORRECT ARM POSITION ON HORIZONTAL BODIES. (For correct arm position on vertical bodies see separate sheet). For Rear Absorbers, -No.8, 8A and… | ||
| Scan059 | Letter discussing the design and benefits of the Lovejoy Road Spring. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X832 Oy5-E-22526 February 25, 1926. Mr. E. W. Hives, Mickleover, near Derby, England. Re Lovejoy Road Spring Dear Hives: If you have room in your office… | ||
| Scan060 | Letter describing the attachment of front and rear springs. | ||
| View original record | Oy5-F-22526 -2- February 25, 1926 The front springsare shackled in front and attached behind. Rear springs are attached in front and shackled behind. Yours very truly, Maurice Olley MO/E | ||
| Scan061 | Installation instructions for front Lovejoy hydraulic shock absorbers. | ||
| View original record | LOVEJOY HYDRAULIC SHOCK ABSORBERS. ROLLS-ROYCE FRONT. IMPORTANT, -Read all instructions carefully before installing. ABSORBERS ARE SECURED TO OUTSIDE OF FRAME IN BACK OF AXLE. DRAWINGS SHOWN BELOW ARE… | ||
| Scan062 | Installation instructions for front Lovejoy hydraulic shock absorbers. | ||
| View original record | LOVEJOY HYDRAULIC SHOCK ABSORBERS. ROLLS-ROYCE FRONT. IMPORTANT, -Read all instructions carefully before installing. ABSORBERS ARE SECURED TO OUTSIDE OF FRAME IN BACK OF AXLE DRAWINGS SHOWN BELOW ARE… | ||
| Scan063 | Installation instructions for rear Lovejoy hydraulic shock absorbers. | ||
| View original record | FACTORY ONLY LOVEJOY HYDRAULIC SHOCK ABSORBERS ROLLS-ROYCE REAR IMPORTANT,-Read all instructions carefully before installing. ABSORBERS ARE PLACED INSIDE OF FRAME IN FRONT OF AXLE. ENTER BOLTS FROM… | ||
| Scan064 | Instructions for determining the correct arm position and attaching straps for Lovejoy hydraulic shock absorbers. | ||
| View original record | HOW TO DETERMINE THE CORRECT ARM POSITION FOR LOVEJOY HYDRAULIC SHOCK ABSORBERS [Illustration of a short arm shock absorber] Scale or Ruler 2-5/8" SHORT ARM ABSORBER, usually used on front.… | ||
| Scan065 | Installation notes from the Lovejoy Manufacturing Company for front and rear absorbers. | ||
| View original record | FILE UNDER LOVEJOY FRONT INSTALLATION NOTES Be sure that there is sufficient clearance between tires and absorbers, and that steering mechanism will not interfere with strap or absorber, when in… | ||
| Scan066 | Letter to Maco Template Co. Ltd. rejecting a proposed shock absorber device after reviewing the blueprints. | ||
| View original record | X832 Expl: Dept: Ha/Rm2/LG. 4th. Mar. 1926. Maco Template Co.Ltd., Audrey House, Ely Place, London E.C.1. Dear Sirs, For the attention of Mr. Carter. We thank you for your letter of the 15th.ult.… | ||
| Scan067 | Potential suspension improvements, referencing springs with stiffer centers and a proprietary 'S & S' shock absorber. | ||
| View original record | S/W. Hs. X832 CWB4/GM/13-4-26. Suspension and Tyres of R. R. Cars. You will have received a copy of R1/M31326 on the above question. The general matters therein will be dealt with in other ways, but… | ||
| Scan068 | Critiquing the 'S & S' Shock Absorber design, highlighting risks of overstressing springs and instability at high speeds. | ||
| View original record | To WJ. from E. Re:-"S & S" Shock Absorber. In our view there is a little virtue in this design consisting of the introduction of a small quantity of undamped flexibility which would operate… | ||
| Scan069 | Demonstration and assessment of the S. & S. Shock Absorber device. | ||
| View original record | PN3/DN20.3.25. TO CJ FROM PN The S. & S. Shock Absorber. This is the device which had publicity in the "Daily Mirror". I was given a demonstration, along with CWB., of this device fitted to the… | ||
| Scan070 | 'S & S' shock absorber after a film demonstration and considering its potential for testing. | ||
| View original record | File. Shock Absorbers Thank you CJ from CWB. CWB6/LH24.3.25. THE "S & S" SHOCK ABSORBER. You have already received a report regarding this fitting - PN/3/DN/23.3.25. Yesterday, I viewed a short film… | ||
| Scan071 | Promotional leaflet and retail price list for S. and S. Shock Absorbers of Canada, Limited. | ||
| View original record | You Don't Ride—You Glide on S & S Shock Absorbers. You will marvel at their positive easy action and how effectively they absorb the shocks and jars resulting from travel over rough roads. Drive… | ||
| Scan072 | Promotional leaflet explaining the function and application of S & S shock absorbers for various car makes. | ||
| View original record | S & S How LEVERAGE Kills the Rough Road Jolts When your wheel hits a bump, the resulting jar travels through wheel and axle to the spring. Ordinarily this jar would travel directly through the spring… | ||
| Scan073 | Advantages and disadvantages of a suspension device and spring modifications. | ||
| View original record | x832 To CWB. from Hs/Rm. Hs/Rm1/LG14.4.26. R-R SUSPENSION. x832 x8410 With reference to CWBA/GMK3.4.26. We do not think it would be worth while obtaining a set of the device you mention because we can… | ||
| Scan074 | The testing and theory of Lovejoy shock absorbers. | ||
| View original record | Oy2-E-45026 4832 April 30, 1928 To: Mr. Nadin Mr. Bagnall Mr. Caswell Mr. Hulley Mr. Southern Mr. Beaver cc Mr. Hives From: Mr. Olley EXPERIMENTAL REPORT Lovejoy Shock Absorbers We have for the first… | ||
| Scan075 | Shock absorber testing, comparing different settings and types. | ||
| View original record | Oy2-E-43026 -2- April 30th, 1926 The effectiveness of the delay-action valve is shown by our being able to use at the rear, a 100 lb. spring giving 315 lbs. on the strap, whereas with the two valve… | ||
| Scan076 | Particulars of a car, including spring deflection, tire inflation, and body type. | ||
| View original record | -2- April 30, 1928. Particulars of car. Lovejoys at rear with 100 lb. springs. (We will later try reducing these.) 6-3/4" Fisk special tires inflated to 30 lbs. Rear springs. 4 passengers 9"… | ||
| Scan077 | Index for a report on vibration-damping and shock-absorbing devices. | ||
| View original record | X832 VIBRATION-DAMPING AND SHOCK-ABSORBING DEVICES. I: INTRODUCTION. a Qualification of the title. i Smooth riding over small obstacles. ii Pitching at high speeds. II: VARIABLE-RATING SUSPENSION… | ||
| Scan078 | Introductory document on vibration damping and shock absorbing devices. | ||
| View original record | Hs/Rml/T22.6.26. VIBRATION DAMPING AND SHOCK ABSORBING DEVICES. (I) INTRODUCTION. (a) Qualification of the title. There are large numbers of devices marketed to-day under the title of "Shock… | ||
| Scan079 | Variable rating suspension devices, detailing the issues with leaf springs and the adoption of auxiliary coil springs. | ||
| View original record | -2- II. VARIABLE RATING SUSPENSION DEVICES. (a) Reasons for adoption. Owing to the internal friction of leaf springs, the suspension is harsh when riding over very small waves or irregularities such… | ||
| Scan080 | Report page discussing the function and failings of auxiliary spring devices, comparing proprietary examples. | ||
| View original record | -3- it enables the car to ride more smoothly over small obstructions at low speeds. For large spring deflections, the coil spring comes choc-a-bloc and the main spring functions in a normal manner.… | ||
| Scan081 | Devices for increasing road spring rating and longitudinal pitching at speed, with an illustration of a 'NEVAJAH' auxiliary spring. | ||
| View original record | -4- Hs/RmL/T22.6.26. (c) Devices for increasing road spring rating on max.bump. Some manufacturers prefer to fit the weakest possible leaf springs and to increase their rating for large deflections by… | ||
| Scan082 | Suspension damping, leaf springs, and mechanical friction dampers, including the Hartford damper. | ||
| View original record | -5- imparted to the system are in step with the natural period of the suspension, a large movement of the springs can easily be built up and the car body will undergo considerable displacement. It… | ||
| Scan083 | Analysis of 'Hartford' type shock dampers and the development of single-acting variable load dampers. | ||
| View original record | -6- Hs/Hal/T22.6.26. friction load substantially constant. The leverage, however, varies with the angle of the scissor arms and usually gives the least restraining force at max. spring deflection and… | ||
| Scan084 | Page describing and comparing friction-based shock dampers, such as the 'Hartford' and 'Gabriel Snubber' types. | ||
| View original record | -7- Hs/RML/T22.6.26. the double acting "Hartford" type, their main attribute is that their connection to the axle can be a fabric strap. This eliminates a number of potential sources of wear and noise… | ||
| Scan085 | Page detailing the principles governing the flow of viscous liquid through an orifice in hydraulic shock dampers. | ||
| View original record | -8- HS/Rml/T22.6.26. (i) Those which depend for their resistance to motion upon the pressure required to force a viscous liquid through a small and tortuous passage. (ii) Those which have… | ||
| Scan086 | The principles of hydraulic shock dampers, focusing on the 'Houdaille' type and the role of oil viscosity. | ||
| View original record | -9- violent axle movements that start pitching are usually very rapid. (c) Dampers depending for their loading solely upon the orifice coefficient of a passage. Undoubtedly the best known hydraulic… | ||
| Scan087 | The viscosity of 'Price's Motorine C' oil and its impact on the performance of Houdaille shock absorbers. | ||
| View original record | -10- Hs/Rul/T22.6.26. Price's Motorine "C". It will be observed that at 10°C [GRAPH: VISCOSITY CURVE. PRICE'S MOTORINE C. Y-axis: OIL TEMP. °C, from 10 to 40. X-axis: TIME FOR OIL TO FLOW THROUGH AN… | ||
| Scan088 | Explanation of a shock damper mechanism with a sectional diagram and parts key. | ||
| View original record | -11- (i) The gland is exposed directly to the full pressure of the fluid. (ii) Though special ball valves are employed to keep the shock damper full, these are non-return and so no allowance is made… | ||
| Scan089 | Page describing the Lovejoy damper, including a cutaway diagram. | ||
| View original record | -12- Exactly similar types of damper are the Derihon and the Berkshire and both suffer from the same disadvantages. (d) Dampers having fixed minimum loading obtained by spring controlled valves. (i)… | ||
| Scan090 | Comparison of shock absorber designs, outlining the advantages and disadvantages, and introducing the 'R.R. damper'. | ||
| View original record | -13- Hs/RmL/T22.6.26. and the suction valve at the base of the chamber allowing oil to flow into the cylinder. When the axle rebounds, the suction valve closes, being non-return, and oil is forced… | ||
| Scan091 | Description of the operation of a hydraulic piston mechanism, likely for a suspension damper. | ||
| View original record | -14- A is the high pressure side of the piston. When the piston moves towards A, in other words, when the axle moves away from the frame and the road spring rebounds, oil is forced out through the… | ||
| Scan092 | Page discussing the principles and superiority of a damper system over friction dampers. | ||
| View original record | -15- Hs/Rml/T22.6.26. a means of ejecting any air which may get behind the piston and cause lost movement, and a filter to clean the oil before it enters the high or low pressure chamber. Road tests… | ||
| Scan093 | Diagram and description of the R.R. Hydraulic Damper arrangement and operation. | ||
| View original record | -16- VI. THE R.R. HYDRAULIC DAMPER. KEY: A- HIGH PRESSURE END B- HIGH PRESSURE VALVE C- AIR RELEASE D- AIR VENT E- INTERMEDIATE LEVER F- FILLER PLUG G- LOW PRESSURE PORTS H- MAIN LEVER. J- CONNECTING… | ||
| Scan094 | Page detailing adjustments, oil levels, and troubleshooting for a shock absorber system. | ||
| View original record | -17- passages G to the high pressure end. When the road spring extends, and the axle moves away from the frame, the piston moves towards the high pressure end of the cylinder A, N being a non-return… | ||
| Scan095 | Troubleshooting instructions for shock dampers, including valve and filter inspection. | ||
| View original record | -18- Hs/Rml/T22.6.26. In the event of the shock damper load changing appreciably, the valves L should again be inspected, and also filter O to see that this is not blocked up. Too low an oil level in… | ||
| Scan096 | Letter from Lovejoy Manufacturing Company about appointing a new UK manufacturer for their hydraulic shock absorbers. | ||
| View original record | LOVEJOY MANUFACTURING COMPANY Makers of LOVEJOY HYDRAULIC SHOCK ABSORBERS 39 BRIGHTON AVENUE BOSTON, MASS. Handwritten Note Top Right: X832 Handwritten Note Left Side: Mr. Hives This may interest you… | ||
| Scan097 | Graph showing the approximate viscosity of an oil from a 'Lovejoy' shock absorber against temperature. | ||
| View original record | Graph showing approximate viscosity of an oil taken from a 'Lovejoy' shock absorber 14.5.26. Temperature in °C Time of efflux in secs. | ||
| Scan098 | Lovejoy Damping Oil. | ||
| View original record | X832 LOVEJOY. DAMPING OIL Hs / Mr. Robotham | ||
| Scan099 | Letter discussing the principles and details of a new shock absorber design from the Wire Wheel Corp. | ||
| View original record | Oy3-E-21827 February 18, 1927. Mr. Basil Johnson, Rolls-Royce, Ltd., London, England. (Copy for attention of Mr. Royce " " " Mr. Hives " " " Mr. Haldenby " " " Mr. Nadin) Re Shock Absorber Dear Sir: I… | ||
| Scan100 | Operation and testing of a hydraulic device, likely for suspension or braking systems. | ||
| View original record | Oy3-E-21827 -2- February 18, 1927 (4) Castor oil diluted with alcohol is used instead of glycerine and alcohol (in the Houdaille). (5) The gland packings are of rubber (which is now standard practice… | ||
| Scan101 | Testing competitive shock absorbers, including Lovejoy and Houdaille, and their potential application for high-speed wobble. | ||
| View original record | OyS-E-21927 -3- February 18, 1927 They claim, after testing a large number of competitive devices - (a) That only hydraulics will stand up long to the test. (b) That under high speeds the Lovejoy and… | ||
| Scan102 | Outlining five key design requirements for hydraulic shock dampers. | ||
| View original record | +832 To OY. DA. Hs. BY. from R. c. to BJ. Wor. PN. CWB. R1/M5.3.27. HYDRAULIC SHOCK DAMPERS. X.235 X.832 I thank Mr. Olley for his memo. of Feb.18th. Many of the makers have not realised our points of… | ||
| Scan103 | Shock dampers, discussing the suitability of hydraulic and Hartford types, and comparing the setup with American Springfield chassis. | ||
| View original record | To BJ. from R. c. to OY. Hs. BY. +832 R6/M29.4.27. SHOCK DAMPERS. X. 832 X. 235 X.4426 Regarding shock dampers our double acting hydraulic ones certainly give the best riding qualities to the car, but… | ||
| Scan104 | Design possibilities and damping characteristics of Lovejoy shock dampers. | ||
| View original record | To CY. from R. c. to BJ. Wor. c. to DA. Hs. c. to BY. V832 R2/M30.5.27. LOVEJOY SHOCK DAMPERS. X. 832 X. 8430 I can now realise that it is possible to run with a strap connection and a shorter arm… | ||
| Scan105 | Technical memo detailing the testing and performance of Lovejoy delay-action shock absorbers. | ||
| View original record | To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to OY. X 832 Hs. absent. Hs/Rm7/LG18.7.27. LOVEJOY SHOCK ABSORBERS. We have tested the latest pattern of these dampers as fitted in… | ||
| Scan106 | Summary of test results and opinions on Lovejoy shock absorbers and their performance compared to proprietary hydraulics. | ||
| View original record | contd :- -2- The tests were conducted as on the Rolls-Royce shock absorbers by means of maximum pressure reading gauges and the point at which the valves lifted was determined by means of the… | ||
| Scan107 | Blueprint drawing of a Lovejoy Delay Action Damper. | ||
| View original record | LOVEJOY DELAY ACTION DAMPER. LOW PRESSURE VALVE. HIGH PRESSURE VALVE. LOW PRESSURE VALVE IS COMPLETELY COVERED .780" FROM CENTRE OF STROKE OF POSITION. 90° 2.25 | ||
| Scan108 | Reverse of a document showing a Print Room stamp from Derby. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM 19 JUL 1927 DERBY. | ||
| Scan109 | Series of graphs showing performance data for the Lovejoy Shock Absorber. | ||
| View original record | LOVETOY SHOCK ABSORBER VARIATION IN MAX. LOAD WITH TEMP. PRESS. LBS/D'' TEMP C° 6" STROKE. AXLE VEL 3.1 FT/SEC VARIATION IN MAX LOAD WITH STROKE AND VELOCITY. LOAD LEVER END LBS. PISTON PRESS LBS/D''… | ||
| Scan110 | Page from a document with mostly illegible text and a Print Room stamp. | ||
| View original record | Main text is illegible. Stamped text: ROLLS-ROYCE, LIMITED PRINT ROOM, 19 JUL 1927 DERBY. | ||
| Scan111 | Summarizing a report on Lovejoy shock absorbers and comparing them to the R.R. type. | ||
| View original record | OY10.R.102127 S/W HS X832 October 21, 1927. TO Mr. Nadin Mr. Caswell cc - Mr. Burton Mr. Ainsworth Mr. Beaver Mr. Bagnall Mr. Hives Mr. Bailey FROM Mr. Olley I have just read again a report of… | ||
| Scan112 | Mounting of rear shock absorbers and clearance for coachwork. | ||
| View original record | - 2 - I believe, however, that England are looking into the mounting of the rear shock absorbers within the frame as we mount the Lovejoys at present, and meanwhile Mr. Burton is going to make a… | ||
| Scan113 | Letter from Rolls-Royce of America to Rolls-Royce Ltd. regarding a third-party 'TWO-WAY' shock absorber. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. RECEIVED X832 OY5.R.12.2.27 December 2nd, 1927. Mr. E. W. Hives, Rolls Royce Ltd., Derby, England. Dear Mr. Hives: RE: SHOCK ABSORBER I would like you… | ||
| Scan114 | Letter discussing laboratory reports on various oils, specifically castor oil and alcohol mixtures, for use in shock absorbers. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X832 OY1.R.1.11.28 January 11th, 1928. Mr. Robotham, Rolls Royce Ltd., Derby, England. Dear Mr. Robotham: RE SHOCK ABSORBERS. In connection with my… | ||
| Scan115 | Laboratory test result sheet on the foaming properties of various oils for use in shock absorbers. | ||
| View original record | H.R.A.794a 1m.11-26 50599 RESULT OF LABORATORY TEST ROLLS-ROYCE OF AMERICA, INC. Test No. Date January 6th, 1928. Oils Sheet #1 Foaming of Oils considered for use in Shock Absorbers. About a 300 cc… | ||
| Scan116 | Laboratory test result comparing the foaming properties of various oils and mixtures. | ||
| View original record | RESULT OF LABORATORY TEST ROLLS-ROYCE OF AMERICA, INC. Test No. Date January 6th, 1928. Oils Of the oils considered, Lovejoy was slightly better than Mobiloil E. The addition of glycerine to Mobiloil… | ||
| Scan117 | Letter discussing shock absorber foaming, lubricant mixtures, and the American Houdaille. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X832 OY1.R.2.10.28 February 10th, 1928. Mr. Robotham, Rolls Royce Ltd., Derby, England. Dear Mr. Robotham: RE SHOCK ABSORBERS FOAMING Replying to… | ||
| Scan118 | Laboratory test result on the foaming of various oils for use in shock absorbers. | ||
| View original record | R.R.A.794m 1m.11-26 55509 RESULT OF LABORATORY TEST ROLLS-ROYCE OF AMERICA, INC. Test No. Date January 6th, 1928. Oils Sheet #1 Foaming of Oils considered for use in Shock Absorbers. About a 300 cc… | ||
| Scan119 | Laboratory test report on the foaming properties of various oil mixtures. | ||
| View original record | RESULT OF LABORATORY TEST ROLLS-ROYCE OF AMERICA, INC. Test No. Date Sheet No. 2 Oils Used: 50% Castor Oil, 50% De. Alcohol First Indications: Started foaming at once 5 Min Stirring: Large bubbles… | ||
| Scan120 | Causes of knocks in shock absorbers, related to lever bearing slack and the size of a low-pressure side hole. | ||
| View original record | To OY. from Hs/Rn. +832 Hs/Rm2/LG26.3.28. SHOCK ABSORBERS+ X235 With reference to your note of the 8th. You will recollect that we gave you all the information we had on noises from the shock absorber… | ||
| Scan121 | Shock absorber failure, oil viscosity tests, and performance theories. | ||
| View original record | contd :- -2- We do not think however that it can do any harm to increase the dimensions of the refilling passages and are therefore conducting some tests on these lines. We are completely mystified by… | ||
| Scan122 | Hydraulic shock absorber research, production issues, and a competitor's article. | ||
| View original record | contd :- -3- I hope, if time permits, to get an indicator working on the hydraulic shock absorber to tell us exactly what it is doing. I read with interest the article by the Chrysler expert on Shock… | ||
| Scan123 | Rough test conducted on a damper system, including a diagram. | ||
| View original record | contd :- -4- .250 BORE .250" We have just conducted a rough test to confirm that the oil can be replaced in the cyl. more rapidly than it can be lost through the air release. Placing a cork and glass… | ||
| Scan124 | Graph comparing the viscosities of various oils at different temperatures. | ||
| View original record | COMPARISON OF VISCOSITIES FOR VARIOUS OILS. TEMPERATURE °C TIME OF EFFLUX - SECS: Y-Axis Values: 0, 10, 20, 30, 40, 50, 60, 70, 80 X-Axis Values: 0, 250, 500, 750, 1000, 1250, 1500, 1750, 2000 Curve… | ||
| Scan125 | The reverse of a document with a 'Print Room' stamp from the Derby facility. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM 27 MAR 1928 DERBY. | ||
| Scan126 | Performance of hydraulic shock absorbers, specifically addressing back pressure and jerking issues. | ||
| View original record | OY2.R.6.28.28 Mr-Rowbotham +832 June 28th, 1928. Will you please reply to the above queries? cc - Mr. Burton Mr. Beaver Mr. Ainsworth TO: Mr. Nadin FROM: Mr. Olley RE SHOCK ABSORBERS - SECTION 7150/60… | ||
| Scan127 | Vehicle suspension conditions, including vibration, chatter, pitching, and bouncing, with corresponding shock absorber settings. | ||
| View original record | - 2 - Rm. has tested at : - LOW SPEED 3.7" stroke 200 cycles/min. 7" " 200 " " and 11" " 200 " " We consider that there are four "typical" conditions :- (1) "Criss-Cross" vibration of front axle:-… | ||
| Scan128 | Adjustments to tire pressure and suspension components to improve ride quality. | ||
| View original record | - 3 - (8) At the same time we are trying to use 35 lbs/in2 tire pressure front and rear. We are not satisfied with 40 lbs/in2 tire pressure in front, because of the harsh action of the car at low… | ||
| Scan129 | Responding to queries on the testing of hydraulic shock absorbers. | ||
| View original record | Y832 To OY; from Hs/Rm; c: to Na; Hs/Rm/LC17:7:28. HYDRAULIC SHOCK ABSORBERS. Y235 Replying to OY2/R6.28.28 - taking your queries in order :- (1) You will see from our further report that back… | ||
| Scan130 | Vehicle handling issues related to tyres and shock absorber settings. | ||
| View original record | contd :- -2- (8) We do not believe that you will be able to use tyres on the front at 35 lbs/sq.in. without danger of 'shimmy' or 'tramp' unless you make the front of the car ride harshly by… | ||
| Scan131 | Indicator diagrams and tests on American shock absorbers. | ||
| View original record | To R. from Hs/Rm. c. to BJ. Nor. c. to E. DA. c. to BY. OY. 4832 Hs/RmL/LG18.7.28. AMERICAN SHOCK ABSORBERS. X235 We have taken indicator diagrams of the American shock absorbers. We used a high… | ||
| Scan132 | Suspension firmness in relation to American riding conditions and proposing a trial of a slotted type delay action. | ||
| View original record | contd :- -2- the problem of riding comfort versus car control. All our information so far has indicated that the American conditions of riding do not necessitate such a firm suspension as ours. We… | ||
| Scan133 | Comparison of standard and American rear shock absorbers using high-pressure diagrams. | ||
| View original record | COMPARISON OF STANDARD AND AMERICAN REAR SHOCK ABSORBERS. 200 LBS/sq in H.P. 3.7" STROKE. A 330 LBS/sq in H.P. 11" STROKE. A 200 LBS/sq in H.P. 7" STROKE. A SLOW RUNNING APPROX 40 CYCLES PER MIN. HIGH… | ||
| Scan134 | Blank page with a red 'PRINT ROOM' stamp from Derby. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM, 18 JUL 1928 DERBY. | ||
| Scan135 | Performance graphs for a Standard Damper under various stroke, pressure, and running conditions. | ||
| View original record | 13" LEVER STANDARD DAMPER .024 Vent 20°C OIL TEMP 60/80 LOAD 200 CYCLES/MIN. SLOW RUNNING 40 CYCLES/MIN APPROX. Top-left graph: 200 LBS / ☐" H.P. 3.7" STROKE A Top-right graph: 200 LBS / ☐" L.P. 3.7"… | ||
| Scan136 | The reverse of a document showing a Print Room receipt stamp. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM, 18 JUL 1928 | ||
| Scan137 | Clarifying the use of in-house designed shock absorbers versus proprietary ones from other companies. | ||
| View original record | V832 To Hs. from F. C. to Sg. You will perhaps remember in December I brought up to Derby with me information concerning Ernst Flentje's shock absorbers and asked your opinion. You will remember you… | ||
| Scan138 | Advertisement for Watson Rubber Flow Stabilators, detailing their factory, product benefits, and international distributors. | ||
| View original record | 4832 18 to 1 WATSON STABILATOR PATENTED RUBBER FLOW SOFT - SMOOTH - SILENT always Night photograph of the huge plant Where the World's Finest Shock Absorbers are Built The new Watson Rubber Flow… | ||
| Scan139 | Advertisement for Watson Stabilator Rubber Flow shock absorbers, featuring the inventor John Warren Watson. | ||
| View original record | The Inventor and Builder of the World's Best Shock Absorber John Warren Watson is one of those rare individuals able to apply creative imagination to successful invention, organization, manufacturing… | ||
| Scan140 | Inspection of a Phantom fitted with De Ram shock-absorbers and a new method of building road springs using rubber strips. | ||
| View original record | P/W "Hs" PRIVATE X832 Ps8/RJ.25/5/29. I saw the Chief Engineer of Mr. De Ram yesterday. The latter is the man who is making a fair success of a what looks like a really good shock-absorber. The object… | ||
| Scan141 | Shock absorber loadings and the maintenance of valve cap depth. | ||
| View original record | filing X832 To By. from Hs/Rn. Hs/Rn.4/MJ.29.8.29. With reference to the attached recommendations for obtaining shock absorber loadings. We have talked the matter over with Mr.Brock, and he is quite… | ||
| Scan142 | Manufacturing difficulties, performance, and potential improvements for shock dampers. | ||
| View original record | To Da. From Hs/Rm. X832. Hs/Rnl/WJ.5.12.29. SHOCK DAMPERS. With reference to Da3/M29.11.29. (1) We are not having very great trouble with wear on any portion of the damper. The main lever bearings are… | ||
| Scan143 | Inquiry regarding Excelsior Arford shock absorbers for a Phantom II car. | ||
| View original record | To Ps. (Paris). From Hs/Rm. X832 ' Hs/Rm. 2/MJ.15.1.30. We want to obtain particulars of the Excelsior Arford shock absorber suitable for our Phantom 11 car. Major Segrave recommends it as being the… | ||
| Scan144 | Different types of shock-absorbers available in France. | ||
| View original record | Sèvres P/W "Hs/Rm" Ps6/RJ.22/1/30. Hs/Rm2/MJ.I5/I/30. Excelsior "Afa" is the shock-absorber meant undoubtedly. It is similar to the Hartford, and, according to Grégoire, of Tracta firm, has no special… | ||
| Scan145 | French trade directory page featuring advertisements for automotive and medical components. | ||
| View original record | 140 AMORTISSEURS DE CHOCS DE PORTES. AMPOULES HYPODERMIQUES Collet (G.) et Cie, "ISOS" BREVETÉ S. G. D. G. FRANCE & ÉTRANGER. NOUVEAU RESSORT DE SUSPENSION A OSCILLATIONS AMORTIES PAR FREINAGE… | ||
| Scan146 | Page from a French commercial directory listing suppliers of ammunition, chemicals, and automotive parts. | ||
| View original record | 139 AMMONIAQUE. - AMORCES. - AMORTISSEURS, etc. COLUMN 1: BERTRAND FRÈRES, 29, r. de la République, 29, St-Étienne (Loire). — T 4.39. Repr: Lainge, r. Sedaine, 32. [92] CAMUS DUCHEMIN (Maison CAMUS)… | ||
| Scan147 | Inquiry to L. Poutrait in Paris regarding the supply of 'Afa' shock absorbers for a 40/50 car. | ||
| View original record | X 832 Expl. Dept. Hs/Rm.1/MJ. Jan. 27th.1930. L. Poutrait, Rue de La Croix-Faubin, 7 et 9. PARIS. Dear Sir, We wish to obtain a set of your "Afa" shock absorbers for one of our 40/50 cars. We should… | ||
| Scan148 | The fitting of Excelsior 'AFA' shock absorbers to Sir Henry Segrave's car. | ||
| View original record | BY. From Da. c. to Hs. X832 Da.1/MJ.4.3.30. EXCELSIOR 'AFA' SHOCK ABSORBERS FITTED TO SIR HENRY SEGRAVE'S CAR. We send you herewith N.Schemes 3048 and 3049 shewing these shock dampers fitted to the… | ||
| Scan149 | Clearance of the Excelsior damper on the Phantom II front axle. | ||
| View original record | X882. By. from Da. c. Hs. Da7/G11.3.30. EXCELSIOR DAMPER ON PHANTOM II. X.7420 X.832 Referring to N.Sch.3048 - Excelsior Damper on Front Axle, we see on further examination of the drawing that the… | ||
| Scan150 | Letter concerning the ordering of Excelsior 'AFA' shock absorbers. | ||
| View original record | Ps. (Paris) From Hs/Rn. X832. Hs/Rn.4/MJ.13.3.30. EXCELSIOR "AFA" SHOCK ABSORBERS. We wrote to Mr. Poutrait with regard to these shock absorbers and he sent us a drawing of type 880 suitable for… | ||
| Scan151 | Shock absorbers for Major Segrave's car. | ||
| View original record | To D/BP. From Hs/Rn. Y832 Hs/Rn.4/MJ.21.3.30. With reference to the attached. These shock absorbers are for Major Segrave's car. Please return the attached. att. s/a shock absorbers Hs/Rn. | ||
| Scan152 | Specifications and load data for an Excelsior 'Afa' Plate Type Rear Damper. | ||
| View original record | For Files. X 832. Hs/Rn. 25.4.30. X.7518 X.832 80-WJ. Segrave. Excelsior "Afa" Plate Type Rear Damper. When applied loads were N.S. 75 lb O.S. over 100 lb. Reset at 35 lb. Loads given with arms at… | ||
| Scan153 | Data sheet detailing the adjustment settings for Excelsior shock absorbers, correlating the number of notches to pounds of force. | ||
| View original record | For Files. X832. X.832. EXCELSIOR SHOCK ABSORBERS. 30 Notches = One Complete Turn. Finger Tight = 7 1/2 lbs. 5 Notches = 9 1/2 lbs. 10 " = 13 lbs. 15 " = 19 lbs. 20 " = 32 lbs. 25 " = 48 lbs. 26 " =… | ||
| Scan154 | Settings chart for Excelsior shock absorbers showing notch count to weight in lbs. | ||
| View original record | For Files. K. 832. EXCELSIOR SHOCK ABSORBERS. 30 Notches = One Complete Turn. Finger Tight = 5 1/2 lbs. 5 Notches = 8 1/2 lbs. 10 " = 11 1/2 lbs. 15 " = 17 lbs. 20 " = 30 lbs. 25 " = 45 - 50 lbs. 26 "… | ||
| Scan155 | Use of auxiliary friction shock absorbers, comparing the 'Afa' model with the 'Hartford' model for standardisation. | ||
| View original record | To BY. From Hs/Bn. c. to Da. c. to EP. X 832 Hs/Bn. S/MJ. 22.5.30. X832 X7520 X5520 FRICTION AUXILIARY SHOCK ABSORBERS. It is apparent that we shall have to fit friction shock absorbers to supplement… | ||
| Scan156 | Quoting an inquiry from The Earl of Cottenham regarding 'Afa' shock absorbers fitted to Sir Henry Segrave's car and the issue of road holding. | ||
| View original record | S/W Es. XP832 C6/C2.7.30. The Earl of Cottenham writes as follows:- "It is very good of you to tell me the make of the additional shock absorbers that you fitted to the late Sir Henry Segrave's car.… | ||
| Scan157 | The 'Arfa' friction-type shock absorbers fitted to the late Sir Henry Segrave's car. | ||
| View original record | C. From Hs. X 832 Hs.1/MJ.3.7.30. SHOCK ABSORBERS - LATE SIR HENRY SEGRAVE'S CAR. Replying to your memo C6/C2.7.30. The 'Arfa' shock absorbers which we fitted to the above car are simply a friction… | ||
| Scan158 | Inquiry about experiments on a new variable shock absorber patented by R. and featured in 'Autocar' magazine. | ||
| View original record | X832 PN.6/WT/15.10.30. S/W. Hs....from PN. On page 694, Oct. 10th of the "Autocar" there is an illustrated reference to a new variable shock absorber patented by R. Will you please let me know whether… | ||
| Scan159 | On the experimental status and proposed revival of a variable shock absorber design. | ||
| View original record | PN. From Hs. J832 Hs.1/MJ.18.10.30. VARIABLE SHOCK ABSORBER. Replying toPN.6/WT15.10.30. A shock absorber of this type has never been designed. We have fitted such a scheme up experimentally but did… | ||
| Scan160 | New driver-controlled shock absorber from Messrs. Andre, with a sample sent for examination. | ||
| View original record | To Hs/Rm c to BY. x832. ROY11/MG1.11.30 ---------- Messrs. Andre have recently introduced a Shock Absorber in which they claim the control of the Shock Absorber itself is possible from the driver's… | ||
| Scan161 | Trial of an Andre shock damper that is adjustable from the dashboard. | ||
| View original record | Hs/Rm. C.Ms. X832. BY19/G.5.11.30. ANDRE SHOCK DAMPER, ADJUSTABLE FROM DASH. The attached seems to be worthy of trying out. It covers what R. has attempted in our oil damper by a scheme he did not… | ||
| Scan162 | Advertisement leaflet for Andre Telecontrol adjustable shock-absorbers. | ||
| View original record | ANDRE TELECONTROL Regulate as you Drive for Speed Touring Bad roads Good roads Car loaded Car empty or any combination of above FRONT REAR ANDRE TELECONTROL PATENTED SHOCK ABSORBER SHOCK-ABSORBERS | ||
| Scan163 | Promotional brochure for 'Telecontrol' dash-adjustable shock absorbers. | ||
| View original record | Such Motoring Comfort as you have Never Known CONTROL THE SHOCK ABSORBERS FROM THE DASH—& REGULATE AS YOU DRIVE THE ANDRE “TELECONTROL” SHOCK ABSORBERS The introduction of the Andre Tele- or Distant… | ||
| Scan164 | Advertisement for Andre new series standard shock absorbers, models 298, 302, and 306, detailing features and prices. | ||
| View original record | ANDRE SHOCK ABSORBERS NEW SERIES STANDARD MODELS TYPES 298, 302 & 306. The wonderful reputation of the Andre Shock Absorber with its double-action control is based on sheer merit and performance, and… | ||
| Scan165 | Request to keep a set of shock absorbers for testing. | ||
| View original record | x 832. To Roy. From Hs/Rn. c. to By. Hs/Rn.3/MJ.8.11.30. With reference to Royll/MGL.11.30. We should like to keep the set of shock absorbers for test. Hs/Rn. | ||
| Scan166 | Shock absorber issues, customer experiences, and proposed tests on cars in the U.S.A. | ||
| View original record | To H. From Hs. (In U.S.A.) c. to SG. Wor. c. to E. Da. c. to Hy. 832 13.11.30. - Ba.1. x832. x7520. SHOCK ABSORBERS. The trouble with shock absorbers here is worse than in England. The people at… | ||
| Scan167 | Finding and sending a print of a 'Delco' shock absorber. | ||
| View original record | To De. From Hs/Rn. X832 Hs/Rm.2/MJ.28.11.30. We have found a print of the 'Delco' shock absorber which Oy. sent us some time ago. In view of Hs's. note we are sending it to you herewith. Hs/Rn. | ||
| Scan168 | Comparing Delco shock absorbers with the company's own, including feedback from road tests on a 25 HP and a Springfield Phantom I. | ||
| View original record | Rm. From HS. (In U.S.A.). c. to Wor. Received 1.12.30. Hs-3. 832. SHOCK ABSORBERS. X. 832. X. 7941d. I enclose herewith picture of latest Delco. I will send blue print later when I can get one. You… | ||
| Scan169 | Picture of a shock absorber tried on a 25 HP vehicle in America and the attempt to get a blueprint. | ||
| View original record | To Da. From Hs/Rm. X832 Hs/Rm.8/MJ.1.12.30. Herewith picture of shock absorber which Hs. tried on the 25 HP. in America. He is trying to get a blue print of this job. Hs/Rm. | ||
| Scan170 | Proposing to send a cable to acquire the latest Lovejoy shock absorbers from America. | ||
| View original record | X832. To Wor. From Hs/Rm. Hs/Rm.9/MJ.1.12.30. In view of R's telegram we propose sending the following cable to Hs. - "PLEASE OBTAIN LATEST LOVEJOY SHOCK ABSORBER FOR R.AND DESPATCH IMMEDIATELY." Will… | ||
| Scan171 | Cable requesting the immediate despatch of the latest Lovejoy shock absorber for Royce. | ||
| View original record | CABLE. Y832. Olly 1.12.30. Hives, Rolls-Royce (America) Inc., Springfield, Mass. U.S.A. Please obtain latest Lovejoy shock absorber for Royce and despatch immediately. Robotham. | ||
| Scan172 | Acknowledging receipt of a Delco-Lovejoy shock damper print and complaining about its delayed arrival. | ||
| View original record | HS/RM. FROM DA. X832, DA1/M5.12.30. We thank you for the print of the Delco-Lovejoy shock damper enclosed with HS/RM2/MJ 281130. The only thing we have to complain about is that it was not sent to us… | ||
| Scan173 | Requesting the material composition of a Lovejoy-Delco shock damper body. | ||
| View original record | X832 HS/RM. FROM DA. DA1/M9.12.30. SHOCK DAMPERS. It would be of immediate interest to us to know the material of the Lovejoy-Delco shock damper body. we understand that you are getting a sample pair… | ||
| Scan174 | Inter-office correspondence detailing the settings for Delco Shock Absorbers on the MX-5 model. | ||
| View original record | RRA25 25m-4-29 62111 INTER-OFFICE CORRESPONDENCE ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. x832 Btn-4 December 10, 1930. To: Mr. Hives From: Mr. Burton Handwritten notes: 70 lbs ball pin = 154… | ||
| Scan175 | Letter from Delco Products Corp. regarding shock absorber settings and adjustments. | ||
| View original record | X832. (Copy - letter from Delco Products Corp. Nov. 6th) Rolls-Royce of America, Inc., Springfield, Mass. Gentlemen: Attention Mr. A.C. Ross, Purchasing Agent Receipt is acknowledged of your letter of… | ||
| Scan176 | Page 2 of a letter from Delco Products Corporation regarding shock absorber specifications and valving. | ||
| View original record | - 2 - Answering question "B", if you will refer to our chart you will notice that "C" equals 113# front and 89# rear. The sample set of shock absorbers, made in accordance with your print M-1765, as… | ||
| Scan177 | Advertisement for Lovejoy Duodraulic Double Acting Hydraulic Shock Absorbers. | ||
| View original record | Now . . . at moderate cost . . . you can take the latest step toward supreme Riding Comfort— Lovejoy Duodraulic DOUBLE ACTING Hydraulic Shock Absorbers Since the advent of Lovejoy Duodraulic Shock… | ||
| Scan178 | Advertising leaflet for Lovejoy Duodraulic double-acting hydraulic shock absorbers. | ||
| View original record | They DO make a DIFFERENCE Mr Walter A Mac Pherson 80 Woodlawn St Springfield Mass Form No. A-325 PRINTED IN U.S.A. Something New for YOUR Car Lovejoy Duodraulic DOUBLE ACTING Hydraulic Shock Absorbers… | ||
| Scan179 | Promotional document explaining the Duodraulic Double Acting Shock Absorber's patented control valves. | ||
| View original record | Piston Clce .003 X832 ILLUSTRATING SIMPLICITY OF DESIGN. MOVING PARTS OPERATE IN BATH OF OIL. DOWNWARD CONTROL VALVE (PATENTED) UPWARD CONTROL VALVE The ideal control of spring action, both downward… | ||
| Scan180 | Sample Delco Lovejoy cast iron shock absorber damper. | ||
| View original record | X832 Day 13.12.30. Day, Camacha, West Wittering. Delco Lovejoy shock absorber case cast iron. Forwarding sample damper on Monday. Robotham. | ||
| Scan181 | The failure of a 'Delco' shock absorber and its replacement. | ||
| View original record | X832. To Da. From Hs/Rn. Hs/Rn.11./MJ.16.12.30. 1832 We are sorry to say that the 'Delco' shock absorber we were getting for you has turned out to be no good. Hs., however, will be here at the end of… | ||
| Scan182 | Note detailing a visit to the Delco plant to inspect their shock absorber technology and development. | ||
| View original record | 1832 Copy of note received from Hs. in U.S.A. To R. c. Sg. c. Nor. S. c. Da. EV. DELCO SHOCK ABSORBERS. Cy. Btn. and my self spent a day at the Delco plant at Dayton. Delco is a branch of the General… | ||
| Scan183 | Shock absorber production, testing, and comparative performance. | ||
| View original record | -2- of shock absorbers they have no fixed ideas as each manufacturer demands something different. They are making them with all kinds of setting. They have produced as many as 30,000 shock absorbers a… | ||
| Scan184 | Comparison of weights for Lovejoy and 20 HP Rear shock damper components. | ||
| View original record | X 832. X5520 SHOCK DAMPER WEIGHTS. Lovejoy & 20 HP Rear. DETAILS WEIGHED. | LOVEJOY. | 20 HP. REAR. --- Cylinder only. | 7 lbs. 10 ozs. | 2 lbs. 12 ozs. Cylinder only, complete with end cover, top… | ||
| Scan185 | Twin-cylinder hydraulic damper produced by the Delco Co. and used on Cadillac vehicles. | ||
| View original record | To R. From Hs. c. to SL. Wor. c. to Ev. K. c. to CL. 832. Hs.1/MJ.6.1.31. x832. x235. HYDRAULIC DAMPERS. The Delco Co. have produced a twin cylinder shock absorber in many ways similar to the one we… | ||
| Scan186 | Patent situation and design considerations for shock dampers. | ||
| View original record | X832 DA. BY.) FROM R. HS. } (At Le Canadel.) R1/M6.1.31. X.235. X.832. SHOCK DAMPERS. THE PATENT SITUATION. ETC. C. to SG. WOR. E. C. to Mr. CLAREMONT. (1) It would seem that we ought to have been… | ||
| Scan187 | Technical memo discussing valve, damper, and lubrication system designs. | ||
| View original record | (2) air vent is necessary but we shall still require the replacement valves. (C) We shew a method of keeping all the slack out of the piston and its cam without taking up headroom: here the spring… | ||
| Scan188 | Comparison of the weights of individual components for Lovejoy and 20HP Rear shock dampers. | ||
| View original record | >832< SHOCK DAMPER WEIGHTS. Lovejoy & 20HP Rear. DETAILS WEIGHED | LOVEJOY. | 20HP REAR. CYLINDER ONLY. | 7 LB. 10 OZ | 2 LB. 12 OZS. " {COMPLETE WITH END COVER TOP COVER VALVES ETC. | 8 " 13 " | 4 "… | ||
| Scan189 | Instructions for sectioning a Lovejoy Damper to expose various internal components. | ||
| View original record | To RHC. From Hs/Rm. X832 Hs/Rm.3/MJ.7.1.31. SECTIONING LOVEJOY DAMPER. (1) Vee cut to expose gland. (2) Cut to expose rebound valve seat and passage. (3) Cut to shew cyl. wall thickness, and thickness… | ||
| Scan190 | Requesting a pair of modified Phantom II rear shock absorbers for testing, outlining four specific modifications. | ||
| View original record | To RHC. From Hs/Rm. X832 Hs/Rm.2/MJ.9.1.31. v7520. X832 HYDRAULIC SHOCK ABSORBERS. We should like to have for test as soon as possible a pair of Phantom ll rear shock absorbers with the following… | ||
| Scan191 | The testing and adjustment mechanism of Delco adjustable hydraulic dampers. | ||
| View original record | To R. From Hs/Rm. c. to Sg. Mor. c. to Da. K. c. to By. DELCO ADJUSTABLE HYDRAULICS. We have now received the complete set of these dampers that Hs. obtained in America and subjected them to both road… | ||
| Scan192 | Damper performance, valve characteristics, and road test findings. | ||
| View original record | -2- Taking into consideration the simplicity of the adjustment it cannot be said that the whole result is unsatisfactory, in fact they appear to have attained a very good compromise. Loadings. The… | ||
| Scan193 | Graphs showing the variation in maximum ball pin load available for a Delco adjustable damper. | ||
| View original record | DELCO ADJUSTABLE DAMPER VARIATION IN MAX. BALL PIN LOAD AVAILABLE, USING ADJUSTMENT. Nº1 LEAK. THE SMALLEST Nº4 LEAK. THE LARGEST MAX. BALL PIN LOAD. LBS. AXLE VEL. FT/SEC LARGE BALL PIN STROKES 4”… | ||
| Scan194 | Heavily faded document, possibly a technical drawing, with a partial date stamp. | ||
| View original record | 14 FEB 3 | ||
| Scan195 | Blueprint displaying six graphs of high and low pressure test results for a Delco II rear damper with a 12' lever and adjustable leak. | ||
| View original record | SHT 2 DELCO REAR DAMPER - ADJUSTABLE LEAK. 12" LEVER. Graph 1 (Top Left): DELCO II. HIGH PRESSURE 4" STROKE. N°1 LEAK. MAX PRESSURES 1085 LBS/D" 925 " 323 " 70 R.P.M 50 R.P.M 25 R.P.M Y-Axis: 462… | ||
| Scan196 | Performance graphs for a Delco II Rear Damper with adjustable leak and 12' lever. | ||
| View original record | SHT3 DELCO REAR DAMPER. ADJUSTABLE LEAK. 12" LEVER. Graph 1: DELCO II LOW PRESSURE 1" STROKE. N°1 LEAK. MAX. PRESSURES. 550 R.P.M. --- 115 LB/sq in 450 R.P.M. --- 115 " 300 R.P.M. --- 92.5 " 200… | ||
| Scan197 | Diagram showing the eccentricity of valve passages for the 'Delco II' project, viewed from the high-pressure end. | ||
| View original record | SHEET 4 ¢ MAIN SHAFT 5.5° CYLINDER BORE 25° LOW PRESSURE PASSAGE LARGE HOLE .282 DIA SMALL " .250" HIGH PRESSURE PASSAGE DIAGRAM OF ECCENTRICITY OF VALVE PASSAGES. VIEWED FROM HIGH PRESSURE END.… | ||
| Scan198 | Blueprint detailing the Delco II leak adjustment mechanism, including a section view through the shaft. | ||
| View original record | S+73 8/7/31 1.200 .750 .375 .437 .625 DIA .212 DIA 1.500 22 ADJUSTMENT GROOVES. 39º .243 DIA .311 DIA 24 T.P.I LOW PRESSURE PASSAGE HIGH " " .083 DIA .250 DIA .093 DIA 1 1/4 MARGIN' DELCO II. LEAK… | ||
| Scan199 | Patent situation for double-acting hydraulic shock dampers in the UK and USA. | ||
| View original record | Copy. X832. R. Sg. c to Wor. c to Hs. c. to BY/NW. BY4/G.20.1.31. X.235. X.832. SHOCK DAMPERS - RE PATENT SITUATION. With reference to Rl/M.6.1.31. the patent position is as follows :- 1/- Re what we… | ||
| Scan200 | Company's position on hydraulic shock damper patents in relation to competitors. | ||
| View original record | -2- BY4/G.20.1.31. 3/- Your views in paragraph (2) of R1/M.6.1.31. are confirmed by our present knowledge, that is, Houdaille, were not following your early design. 4/- We are unable at the moment to… | ||
| Scan201 | Technical drawing with dimensions for a 'Delco' Inter Lever. | ||
| View original record | x802 23-1-31 SECTION A.A. 1.200 Crs .425 1.000" .600" 1.000" "DELCO" INTER LEVER. A A .850" 1.184" DIA .950" .750" 1.625" 1.000" .093 1.100" 1.184" DIA 2.930" 1.112/5" DIA SLIGHT TAPER. A.B. | ||
| Scan202 | Fitting of Delco Shock Dampers to Phantom I, Phantom II, and 25-EX models. | ||
| View original record | X 823. To RHC. From Hs/Rm. Hs/Rm.3/KT. 24.1.31. We hand you herewith drawings of the fitting of the Delco Shock Dampers to the Phantom 1 cars in America. The dampers they have sent over have levers of… | ||
| Scan203 | Letter to Rolls-Royce (America) Inc. regarding the testing and fitting of Delco shock absorbers. | ||
| View original record | 8832. X. 832. X. 7772, Expl. Dept. Hs.9/MJ. January 26th.1931. Rolls-Royce (America) Inc., Springfield, Mass. U.S.A. For the attention of MR. Burton. Dear Burton, We have received your letter on… | ||
| Scan204 | Technical memorandum detailing tests and construction of Delco Lovejoy hydraulic dampers. | ||
| View original record | K832 To R. From Hs/Rm. c. to Sg. Wor. c. to Da. E. c. to By. Ha/Rm.2/MJ.30.1.31. X-35 DELCO HYDRAULIC DAMPERS. We have been carrying out tests on one of the latest type Delco Lovejoy dampers that is,… | ||
| Scan205 | Critique and functional analysis of a damper's venting, filtration, and valve mechanisms. | ||
| View original record | -2- (3) Venting. They allow an appreciable leak past the screw holding the two piston halves together, we have to confirm if this has any effect on the damper performance, it may be an additional… | ||
| Scan206 | Analysis of damper valve performance, focusing on high-pressure masked valves and comparisons with Delco systems. | ||
| View original record | -3- up to about 3 ft/sec. on the rear axle of a spring controlled passage in the shape of an annular leak of length .100 and various areas depending on the number of the valves fitted. Actually for… | ||
| Scan207 | The development, testing, and patent situation regarding various shock damper designs. | ||
| View original record | - 4 - blocking up the leaks being shewn on Sheet 3 where double the maximum pressure is reached in the same time with no more damping. SHORT DAMPER LEVERS. There appears to be little doubt that these… | ||
| Scan208 | Comparison of weights for Lovejoy and 20 HP. Rear shock damper components. | ||
| View original record | SHOCK DAMPER WEIGHTS. Lovejoy & 20 HP. Rear. DETAILS WEIGHED. | LOVEJOY. | 20 HP. REAR ----------------------------------------------------------------------------------------------------------… | ||
| Scan209 | Graphical analysis of deflection and torsion in hydraulic damper levers and arms. | ||
| View original record | SHEET I Top Graph: Title: BENDING OF LEVER Y-Axis: 1/1000" AT BALL END X-Axis: LOAD ON LEVER LBS Measurements: DEFLECTION MEASURED AT B, DEFLECTION MEASURED AT A Keys: OVAL SECTION REAR, STRAIGHT… | ||
| Scan210 | Very faint drawing with a purple Print Room stamp. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM, 3 FEB 31 DERBY. | ||
| Scan211 | Performance data graphs and tables for front axle dampers with 7.5 levers. | ||
| View original record | FRONT AXLE DAMPERS. 7.5 LEVERS SHEET 3 COMPRESSION OR LOW PRESSURE STROKE TABLE 1: MEAN AXLE VEL. FT/SEC | MEAN BALL PIN LOAD LBS | MAX BALL PIN LOAD LBS .75 | 27.7 | 29.5 1.07 | 32.6 | 32.6 1.50 | 40… | ||
| Scan212 | Diagrams showing Delco Damper performance characteristics under various conditions. | ||
| View original record | SHEET IV DIAGRAMS DELCO DAMPER. MAIN LEVER 7.5. INTERMEDIATE LEVER 13.50 S.1.31 LEFT COLUMN: DELCO "LOW PRESSURE. 7.1.31 AS DELIVERED STANDARD LOVEJOY OIL 450 R.P.M. 1" STROKE AXLE VEL 1.25 FT/SEC… | ||
| Scan213 | Performance variation graphs for a Delco damper at different oil temperatures and pressures. | ||
| View original record | SHEET V VARIATION IN PERFORMANCE WITH TEMPERATURE DELCO DAMPER AXLE VELOCITY .75 FT/SEC STROKE 4" LOW PRESSURE PRESSURE 100 LBS/D" OIL TEMP 20°C MEAN BALL PIN LOAD 29.2 MAX BALL PIN LOAD 33.0 LBS. 0°C… | ||
| Scan214 | Blueprint showing performance variation graphs and data for a Delco Damper. | ||
| View original record | SHEET VI VARIATION IN PERFORMANCE WITH SPEED DELCO DAMPER TOP GRAPH & TABLE: 154 LBS/sq in OIL PRESS. BALL PIN VEL | MAX. PRESS | M.E.P. .75 | 33 | 29.4 | A 1.08 | 38.4 | 33 | B 1.50 | 52.5 | 43.8 | C… | ||
| Scan215 | Graph showing the variation of ball pin load with axle velocity for a 7.5 inch lever. | ||
| View original record | SHEET VII VARIATION OF BALL PIN LOAD WITH AXLE VELOCITY 7.5" LEVER VALVES 2G. G.4 MAXIMUM BALL PIN LOAD LONG STROKES HIGH PRESSURE SHORT STROKES HIGH PRESSURE LONG & SHORT STROKES LOW PRESSURE AXLE… | ||
| Scan216 | Diagram of a Lovejoy piston with cross-sections and notes on its assembly and function. | ||
| View original record | SHEET 8 DIAGRAM LOVEJOY PISTON REPLENISHING PASSAGE 7.500 1.350 2.4 D TWO HALVES OF PISTON INTERCHANGE NURLED & PRESSED IN. SCREW HEAD LOCKED BY INDENTATIONS NOT PRESSED IN ITS UNDER SIDE ABUTTING ON… | ||
| Scan217 | Faint blueprint drawing with a 'Print Room' reception stamp. | ||
| View original record | PRINT ROOM, 3 FEB 31 DERBY. | ||
| Scan218 | Blueprint showing cross-sections and specifications for a low pressure and high pressure valve. | ||
| View original record | SHEET 9. UPWARD OR LOW PRESSURE VALVE. ANNULAR CLEARANCE AT A .282 - .243 = .039' SHROUDED VALVE LIFT .125' .037' VALVE LETTER C. OUTER SPRING RATING 238 LBS/IN INNER SPRING RATING 14.8 LBS/IN. LIGHT… | ||
| Scan219 | Blank document back or cover sheet with a Print Room date stamp. | ||
| View original record | ROLLS-ROYCE LTD PRINT ROOM 17 FEB 31 DERBY. | ||
| Scan220 | Graph and diagram illustrating Delco lever deflection tests. | ||
| View original record | SHEET X. "DELCO" LEVER DEFLECTION TESTS. 12" LEVER PISTON STOP AT L.P. END. DEFLECTION INS. .080 .060 .040 .020 LOADS ON LEVER LB. 20 40 60 80 100 120 C B A B-A C-B CLOCKS FIXED TO THIS BAR CLOCK C… | ||
| Scan221 | Heavily faded document page with a purple 'Print Room' stamp from Derby. | ||
| View original record | ROLLS-ROYCE., LIMITED PRINT ROOM, 3 FEB 31 DERBY. [Main body of text is illegible due to severe fading and staining] | ||
| Scan222 | Covering note for a report on Delco Shock Absorbers. | ||
| View original record | To Wor From Hs/Rm. X832. Hs/Rm. 9/KT. 4. 2. 31. Attached herewith is a report on Delco Shock Absorbers. We are not sending you the prints as we do not think that you will require them, but should you… | ||
| Scan223 | Specification chart for Delco low-pressure valve spring ratings for 'C' and 'G' types, detailing load and deflection for outer and inner springs. | ||
| View original record | DELCO VALVE SPRING RATINGS LOW PRESSURE. 'C' & 'G' TYPES. OUTER SPRING LOAD Lb. | DEFLECTION - INS. 'C' | 'G' 0 | — | — 10 | .045 | .025 20 | .085 | .049 30 | .125 | .072 40 | — | .095 50 | — | .118… | ||
| Scan224 | Graph showing Delco valve spring ratings under low pressure. | ||
| View original record | DELCO VALVE SPRING RATINGS. LOW PRESSURE. 4-2-31. DEFLECTION - INS. OUTER SPRING .150 .100 .050 INNER SPRING 300 200 100 'C' INNER 14.8 LB/IN. 'C' OUTER 238 LB/IN. 'G' INNER 14.8 LB/IN. 'G' OUTER 417… | ||
| Scan225 | Blank document cover or reverse page with a Print Room date stamp. | ||
| View original record | ROYCE, LIMITED PRINT ROOM, 12 MAR 31 DERBY | ||
| Scan226 | Specifications for Delco high and low pressure valve springs. | ||
| View original record | 1832 DELCO VALVE SPRINGS. 4.2.31. HIGH PRESSURE. | | TYPE "C" | TYPE "E" | TYPE "G" | |---|---|---|---| | FREE LENGTH. | .750 | .735 | .760 | | OUTSIDE DIA. | .404 | .437 | .438 | | INSIDE DIA. |… | ||
| Scan227 | Telegram regarding Malcolm Campbell's record using Andre shock absorbers and silentblocs. | ||
| View original record | ROLLS-ROYCE LTD. TELEGRAM RECEIVED BY TELEPHONE x832 Time Received: 12 45 Date: 6-2-31 To: Royce By: GSJ from: London 12 1/4 STAMP: MD 6 FEB 1931 RECEIVED Malcolm Campbell's record on Andre shock… | ||
| Scan228 | Despatch note for sectioned and scrapped Delco shock absorbers to be sent to Le Canadel. | ||
| View original record | Stores. From Hs/Rm. c. to S.O. V832 Hs/Rm.8/MJ.10.2.31. X. 832. X. 2048. We are sending into the Stores for despatch to R. at Le Canadel, the parts of one Delco horizontal single piston type shock… | ||
| Scan229 | Design and development of Delco horizontal and double piston vertical type hydraulic shock absorbers. | ||
| View original record | 832. To R. From Hs/Rm. c. to Sg. c. to Wor. c. to Da. Hs/Rm.1/KT.11.2.31. X.235. X.832. HYDRAULIC SHOCK ABSORBERS. At the same time as we are sending you the sectioned Delco horizontal hydraulic… | ||
| Scan230 | Works order for the despatch of parts for two Delco shock absorbers to Sir F.H. Royce. | ||
| View original record | RR 615B (50T) (SF 187 22-11-18) MP 19831BB WORKS ORDER NO. 27000 CHASSIS NO. Customer's No. Customer Sir F.H. Royce, Bart, Les Mimosas, Le Canadel, Var, France. No. off Piece No. Y. DESCRIPTION OF… | ||
| Scan231 | Issues with existing shock dampers and an evaluation of Delco-Lovejoy alternatives. | ||
| View original record | HS. DA. FROM R. (At Le Canadel.) X832 R2/M23.2.31. C. to SG. WOR. C. to E. BY. re. SHOCK DAMPERS. X. 235. X. 832. X. 7520. X. 5320. Under the conditions of bad roads we do not like the 10" deflection… | ||
| Scan232 | Report page discussing lever, shaft, and damper component specifications and comparisons. | ||
| View original record | (2) (4) The levers in these models are about 7.5" long. We are working with 13". It would seem that we must get down to 10" and some limit on rebound. (5) When we made ours we had no thought of 100 to… | ||
| Scan233 | Maintenance bulletin providing installation and adjustment instructions for Delco Lovejoy hydraulic shock absorbers. | ||
| View original record | 8832. Mr. Hives RR Ltd, Derby MAINTENANCE BULLETIN No. 310-21 March 28, 1931. RE: DELCO LOVEJOY SHOCK ABSORBERS Instructions below cover the installation and adjustment of Delco Lovejoy Hydraulic… | ||
| Scan234 | Fitting instructions for front shock absorbers and chassis lubrication piping. | ||
| View original record | -2- No. 310-21 March 28, 1931. 5. Drill two .562 diameter holes in frame 1/16" further forward than the scribed centers. 6. Bolt up body to frame and tighten up all around. 7. Pivot lean should now be… | ||
| Scan235 | Instructions for the modification, adjustment, and care of shock absorber fittings and instruments. | ||
| View original record | -3- (a) Front The tee fitting should be removed from the shock absorber, the drip plug portion removed and replaced by a Briggs plug (A-2093). The straight through coupling thus formed is replaced on… | ||
| Scan236 | Schematic diagrams with measurements for component positioning and drilling. | ||
| View original record | DRILL .562 DIA 2.000 2.000 2.000 6.675 10.000 (1-1700) 11.350 (1701-2500) 14.600 (2501-ON) FROM SWIVEL PIN A LEVEL TOP OF FRAME DRILL .562 DIA. 2.000 2.000 1.750 APPROX. BELOW LEVEL TOP OF FRAME. B… | ||
| Scan237 | Letter to J. Lucas Ltd. inviting them to a meeting to discuss hydraulic shock absorbers. | ||
| View original record | 8832. Expl. Dept. Hs/Rm.3/MJ. March 28th.1931. Messrs. J. Lucas Ltd., Dordrecht Road, Acton Vale, LONDON.W.3. Dear Sirs, Hydraulic Shock Absorbers. We are very anxious to have an opportunity of… | ||
| Scan238 | Letter from Luvax Limited confirming a meeting to discuss hydraulic shock absorbers. | ||
| View original record | DIRECTORS HENRY J. SAYER. PETER F. BENNETT. OLIVER LUCAS. CHASSIS ENGINEERING LUVAX LIMITED WORKS: LARDEN ROAD, ACTON, LONDON, W.3. TELEGRAMS:'LUVAXITUDE, ACT, LONDON' TELEPHONE: SHEPHERDS BUSH 3111… | ||
| Scan239 | Sending a Delco Lovejoy Rear Hydraulic Shock Absorber to Luvax Ltd. to quote a price for manufacturing. | ||
| View original record | Stores. From Hs/Rm. c. to O.O. c. to S.O. 8832. Hs/Rm.6/MJ.10.4.31. We are sending into the Stores for despatch to Messrs. Luvax Ltd., Larden Road, Acton, LONDON.W.3. - One Delco Lovejoy Rear… | ||
| Scan240 | Letter to Luvax Ltd. concerning a Delco Rear Shock Absorber and a request for a manufacturing quote. | ||
| View original record | 8832. Expl. Dept. Hs/Rm.1/MJ. April 10th.1931. Messrs. Luvax Ltd., Larden Road, Acton, LONDON.W.3. For the attention of Mr. Pitt. Dear Sir, Further to our conversation of a week ago we have today… | ||
| Scan241 | Letter accompanying a drawing for testing front shock absorbers and dampers. | ||
| View original record | -2- We send you herewith a drawing shewing the length of lever and method of mounting our existing front shock absorbers so that you will be able to provide us with a pair of levers to enable us to… | ||
| Scan242 | Letter from Luvax Limited regarding the examination of a Delo Lovejoy shock absorber and the preparation of a similar L.C. type. | ||
| View original record | DIRECTORS HENRY J. SAYER. PETER F. BENNETT. OLIVER LUCAS. CHASSIS ENGINEERING LUVAX LIMITED WORKS: LARDEN ROAD, ACTON, LONDON, W.3. TELEGRAMS: 'LUVAXITUDE, ACT, LONDON' TELEPHONE: SHEPHERDS BUSH 3111.… | ||
| Scan243 | Request to procure and forward a set of Andre Telecontrol Friction Shock Absorbers for fitting. | ||
| View original record | S/W. X832. Bt.2/PH.14.4.31. Andre Telecontrol Friction Shock Absorbers. In reply to your Hs/Lid.2/KT.30.3.31., I shall be very obliged if you will get me a set of these shock absorbers and forward… | ||
| Scan244 | Price correction for Andre Telecontrol friction shock absorbers. | ||
| View original record | W/S. Bt. From Hs/Lid. x832. Hs/Lid.3/KT.20.4.31. ANDRE TELECONTROL FRICTION SHOCK ABSORBERS. Referring to Bt.2/PH.14.4.31. we find that we quoted you a wrong figure for the Andre Telecontrol dampers.… | ||
| Scan245 | Clarifying whether 'a set' of Andre Telecontrol Friction Shock Absorbers refers to two or four units. | ||
| View original record | S/W. X832. Bt.11/PH.22431. Andre Telecontrol Friction Shock Absorbers. Referring to your memo Hs/Lid.3/KT.20431., I am not quite certain whether when you speak of a set, you mean a set of four or a… | ||
| Scan246 | Order of Andre Telecontrol Friction Shock Absorbers for a customer's Phantom car. | ||
| View original record | J832 To D/BP. From Hs/Lid. Hs/Lid.3/KT.23.4.31. ANDRE TELECONTROL FRICTION SHOCK ABSORBERS. We have received a request from Bt. for a set (four per set) of Andre Telecontrol Friction Shock Absorbers… | ||
| Scan247 | Confirmation of price and placement of an order for Andre Telecontrol friction shock absorbers. | ||
| View original record | 1832 W/S. Bt. from Hs/Lid. Hs/Lid.4/KT.23.4.31. ANDRE TELECONTROL FRICTION SHOCK ABSORBERS. Referring to your St.11/PH22.4.31. the price quoted (£20 less 40%) is for a complete set of four shock… | ||
| Scan248 | Installation and adjustment instructions for Delco Lovejoy hydraulic shock absorbers. | ||
| View original record | 8832. Mr. E. H. Hewes, RR Ltd, Derby, England MAINTENANCE BULLETIN No. 310-21 RE-ISSUE April 28, 1931 RE: DELCO LOVEJOY SHOCK ABSORBERS Instructions below cover the installation and adjustment of… | ||
| Scan249 | Instructions for fitting front Delco shock absorbers to various chassis, including part specifications. | ||
| View original record | -2- No. 310-21 April 28, 1931. Taper packings are available as follows, and should be chosen to suit: A-15285 1/2º A-15286 1º A-10296 1 3/4º 4. Attach Delco Shock Absorber to ball end and place body… | ||
| Scan250 | Instructions for chassis lubrication piping, shock absorber adjustment, and care for Delco units. | ||
| View original record | -3- No. 310-21 April 28, 1931. 2. Chassis Lubrication Piping Points needing lubrication on Delco units are provided with Alemite fittings. Alteration to the existing Bijur system should be carried out… | ||
| Scan251 | Diagrams showing rear absorber frame drilling dimensions and Delco rear absorber mounting. | ||
| View original record | ¢ OF SWIVEL PIN CHASSIS | DIM. A | DIM. B 1-1700 | 10.750 | 2.500 1701-2500 | 11.350 | 2.750 2501-ON | 14.600 | 2.750 2 HOLES - .562 DIA. +10 2.000 2.000 REAR ABSORBER FRAME DRILLING 6.675 USE SPECIAL… | ||
| Scan252 | Sketches for Delco front absorber mounts on different chassis ranges. | ||
| View original record | LEVEL TOP OF FRAME DRILL .562 DIA 2.000 2.000 SKETCH B-1 DELCO FRONT ABSORBER MOUNT CHASSIS 2401-ON DRILL .562 DIA 2.000 2.000 12.375 LOCATE IN LEVEL POSITION AS BEST SUITED FOR JOB SKETCH B-2 DELCO… | ||
| Scan253 | Supplier's recommendation to use Multiplex shock absorbers over the single type for the 40/50 HP Continental Chassis. | ||
| View original record | To BY. from ROY. c. to Hs. SHOCK ABSORBERS In acknowledging our Order No.14565 for a further 6 sets of Type 306 Single Shock Absorbers for 40/50 HP. Continental Chassis, Messrs. T.B.Andre & Co.Ltd… | ||
| Scan254 | Instructions for reforming and testing Delco shock absorbers on various car models. | ||
| View original record | To RHC. From Hs/Rm. c. to wor. GWH Hs/Rm.2/KT.6.5.31. X.832. X.7520. X.5520. X.235. DELCO R.R. SHOCK ABSORBERS. We now have complete instructions from the D.O. for reforming our shock absorber system.… | ||
| Scan255 | Endurance testing and modifications for 40/50 HP hydraulic shock absorbers. | ||
| View original record | To Ry. From Hs/Rm. c. to Wor. GvH. 8832. Hs/Rm.3/KT.6.5.31. X.7520. X.832. 40/50 HP. HYDRAULIC SHOCK ABSORBERS. We understand that you have to order the material for 25 more 40/50 cars. The position… | ||
| Scan256 | Letter from Luvax Limited regarding the completion and delivery of special L.C. and M.P. type shock absorbers. | ||
| View original record | DIRECTORS HENRY J. SAYER PETER F. BENNETT OLIVER LUCAS LUVAX HYDRAULIC SHOCK ABSORBERS LUVAX-BIJUR CHASSIS LUBRICATING SYSTEM 8832. CHASSIS ENGINEERING LUVAX LIMITED Warple Way, WORKS: EARDEN ROAD,… | ||
| Scan257 | Letter discussing wear issues on shock absorber bushes and clarifying load specifications. | ||
| View original record | K832 RECEIVED 11 MAY 1931 11th. May 1931. BYG/G. ------ Messrs. T. B. Andre & Co. Ltd., Victoria Gardens, Ladbroke Road, Notting Hill Gate, LONDON. W.11. Dear Sirs, Referring to your letter of the 9th… | ||
| Scan258 | The concluding page of a letter signed by a Technical Production Engineer. | ||
| View original record | - 2 - are not in themselves responsible for the faults developed. Yours faithfully, FOR ROLLS-ROYCE LIMITED. By TECHNICAL PRODUCTION ENGINEER. | ||
| Scan259 | Letter from Luvax Limited regarding a representative's visit to discuss shock absorbers. | ||
| View original record | 8832. DIRECTORS HENRY J. SAYER PETER F. BENNETT OLIVER LUCAS CHASSIS ENGINEERING LUVAX LIMITED WORKS: LARDEN ROAD, ACTON, LONDON, W.3. TELEGRAMS "LUVAXITUDE, ACT, LONDON" TELEPHONE SHEPHERDS BUSH 3111… | ||
| Scan260 | Letter from Luvax Limited acknowledging a previous letter and proposing a future meeting. | ||
| View original record | DIRECTORS HENRY J. SAYER. PETER F. BENNETT. OLIVER LUCAS. CHASSIS ENGINEERING LUVAX LIMITED WORKS: LARDEN ROAD, ACTON, LONDON, W.3. TELEGRAMS: 'LUVAXITUDE, ACT, LONDON' TELEPHONE: SHEPHERDS BUSH 3111… | ||
| Scan261 | Letter to Luvax Ltd. regarding tests on their NP.3 shock absorbers for the 25 HP car. | ||
| View original record | 8832. Hs/Rm3/AD. August 11th, 1931. Messrs. Luvax Ltd. Warple Way, Acton, London, W.3. For the attention of Mr. Pitt. Dear Sirs, We have now carried out a few tests on the Luvax shock absorbers which… | ||
| Scan262 | Analysis of shock absorber performance issues under different loads, temperatures, and oil viscosity. | ||
| View original record | Messrs. Luvax Ltd. Acton, W.3. -2- Diagrams 3 and 4 show that overthe high frequency small amplitude movements, the maximum load of the ball end is reduced by about 25% and the mean load is only about… | ||
| Scan263 | The performance and faults of Luvax Ltd. shock absorbers, including analysis of oil viscosity and leakage. | ||
| View original record | Messrs. Luvax Ltd. Acton, W.3. -3- Curves 11 and 12 show that under these conditions the performance of the shock absorber is much improved by using thin oil. The compressor oil mentioned in the test… | ||
| Scan264 | Letter to Luvax Ltd. discussing the performance and test results of a shock absorber, referencing specific diagrams. | ||
| View original record | Messrs. Luvax Ltd. Acton, W.3. -4- Diagrams E, F, G and H show the performance of the shock absorber under the loads which we consider necessary. E and F again emphasise that the pressure in the shock… | ||
| Scan265 | Blueprint detailing dimensions and calculations for a Luvax Damper Type M.P.III. | ||
| View original record | LUVAX DAMPER - TYPE M.P.III DIMENSIONS OBTAINED BY MEASUREMENTS FROM DRAWINGS 8-7-31 L=8.5" 2.900" 1.000" 0.950 VANE 1.5" WIDE. WL = p a l ∴ FOR 154 LB/□" PRESSURE W = (154 x 1 x 1.5 x .950) / 8.5 =… | ||
| Scan266 | Series of indicator diagrams for a Luvan M.Phantom III under various load and temperature conditions. | ||
| View original record | Diagram 1 (Ref: 126/13): LUVAN M.P.III. HIGH PRESSURE AS SUPPLIED. LOADS 1370LB 150 R.P.H. 70 Y-axis: SUPPLIED Diagram 2 (Ref: 126/14): LUVAN M.P.III. LOW PRESSURE AS SUPPLIED LOADS 1270LB 150 R.P.H.… | ||
| Scan267 | Blank document page with a purple date stamp from the Derby office. | ||
| View original record | 11 AUG 31 DERBY. | ||
| Scan268 | Series of six graphs comparing Luxan M.P. III high and low pressure performance under various load and oil conditions. | ||
| View original record | Panel 3: LUXAN M.P. III. HIGH PRESSURE AS SUPPLIED. 19/70LB. 1" STROKE Graph Annotations: 450 R.P.M, 50" Y-Axis: SCALE 1/10" Margin Note: 190° I.S. Panel 4: LUXAN M.P. III. LOW PRESSURE AS SUPPLIED.… | ||
| Scan269 | Stamped blank page, likely a divider or the back of a document. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT No. 3 11 AUG 31 DERBY | ||
| Scan270 | Four performance graphs for the LuvaX M.Phantom II component under various test conditions. | ||
| View original record | Top-Left (13): LUVAX M.P.II. LOW PRESSURE VALVE SCREWED RIGHT DOWN COMPRESSOR OIL. 4" STROKE 150 RPH 70 - 300 LB/SQ" 120" IS Top-Right (14): LUVAX M.P.II. HIGH PRESSURE VALVE SCREWED RIGHT DOWN… | ||
| Scan271 | Four graphs comparing 'LUNAR L.C.' low and high pressure tests under different load, stroke, and temperature conditions. | ||
| View original record | Section A: LUNAR L.C. Low Pressure As Supplied. Loads 4/SQ.LB. 4" Stroke 150 R.P.H 70 " 180lbs 300lbs Section B: LUNAR L.C. Low Pressure As Supplied. Load 4/SQ.LB. 4" Stroke. TEMP 50°C 150 R.P.H 70 "… | ||
| Scan272 | Blank document page with a Print Room stamp. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM. 11 AUG 31 DERBY. | ||
| Scan273 | Four indicator diagrams for a 'Lulax LC' component under different pressure and temperature conditions. | ||
| View original record | Panel E (Top Left): Lulax L.C. Low Pressure Load 100/100 LB & 4" Stroke 150 RPM / 7a Vertical Axis: 300 lbs/sq.in' Bottom Axis Markings: 120/S., 140/S. Other Markings: E, T, I Panel F (Bottom Left):… | ||
| Scan274 | Blank document page with a purple archival date stamp. | ||
| View original record | ROLLS-R PRIN AUG 81 | ||
| Scan275 | Letter from Joseph Lucas Limited regarding a proposed meeting date with a representative. | ||
| View original record | HEAD OFFICES & WORKS: GREAT KING ST, BIRMINGHAM. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. 'KING OF THE ROAD' LAMPS, HORNS, CYCLALITIES,… | ||
| Scan276 | Letter to Joseph Lucas Ltd. rescheduling a meeting with their representative. | ||
| View original record | 8832. Expl. Dept. Hs/Rm.6/MJ. August 22nd.1931. Messrs. Joseph Lucas Ltd., Warple Way, Acton, LONDON.W.3. For the attention of Mr. H.W. Pitt. Dear Sir, Referring to your letter of the 21st.inst. I am… | ||
| Scan277 | Comparison of the manufacturing and design differences between 'Delco' and 'HS/Rm' type split damper pistons. | ||
| View original record | SPLIT DAMPER PISTONS. COMPARISON BETWEEN "DELCOS" & HS/RM'S TYPES. The "Delco" piston is turned to the finished dia. and the end face is squared up at the same setting. These settings form the… | ||
| Scan278 | Comparison of manufacturing operation sequences for 'Delco' and 'HS/Rm' type pistons. | ||
| View original record | These latter details, together with the elimination of the grinding process and a very plain initial casting make the production of the "Delco" pistons a cheaper proposition than the Hs/Rm type, apart… | ||
| Scan279 | Blueprint detailing the probable manufacturing operations for a 'Delco' Damper Piston. | ||
| View original record | OPERATIONS:- 1. TURN DIA FINISHED SIZE AND FACE END. 2. MILL ALL FLAT FACES. 3. DRILL ALL HOLES. 4. COUNTERBORE. 5. TAP - SPRING SCREW HOLES (ONE HALF PISTON ONLY) 'DELCO' DAMPER PISTON. PROBABLE… | ||
| Scan280 | Requesting the procurement of 5 gallons of Lovejoy oil and a cost comparison for its use in shock absorbers. | ||
| View original record | Roy. from Hs/Rm. Hs/Rm.2/AD21.9.31. LOVEJOY OIL. Will you please obtain for us 5 galls. of Lovejoy oil. This is obtainable from Delco-Remy & Hyatt Ltd. 111, Grosvenor Rd. London, S.W.11. We should… | ||
| Scan281 | Letter from Joseph Lucas Limited arranging a meeting to discuss Shock Absorbers. | ||
| View original record | HEAD OFFICES & WORKS: GREAT KING ST., BIRMINGHAM. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. [Handwritten] 8832, 'KING OF THE ROAD' LAMPS,… | ||
| Scan282 | Letter to Messrs. J. Lucas Ltd. regarding a meeting to discuss shock absorbers. | ||
| View original record | 8832. Expl. Dept. Hs/Rm.5/MJ. September 24th.1931. Messrs. J. Lucas Ltd., Warple Way, Acton, LONDON.W.3. For the attention of Mr. Pitt. Dear Sir, With reference to your letter of the 22nd. inst. It… | ||
| Scan283 | The respective costs of Air Compressor Oil and 'Lovejoy' Oil. | ||
| View original record | Y832: Hs/Rm. ROY/GEA1/WM.30.9.31. Lovejoy Oil. Referring to your memo Hs/Rm2/AD.21.9.31. Will you please note the respective costs to us of Air Compressor Oil and 'Lovejoy' Oil in 40-gallon barrels,… | ||