Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Page from 'The Motor' magazine reviewing the 1911 Olympia Motor Show, discussing worm drives and showcasing various mechanical features. | ||
| View original record | Z 524 14th November, 1911. 733 The Motor WORM DRIVE.—Contd. more widely studied, it is unquestionable that improved results will be obtained, and the use of the worm will be extended, though the… | ||
| scan0002 | Article from 'The Motor' magazine describing the Lentz Hydraulic Transmission Gear. | ||
| View original record | The Motor 734 14th November, 1911. THE LENTZ HYDRAULIC TRANSMISSION GEAR. An Old Idea Incorporated in a New and Particularly Ingenious Way. IN all probability it will not be an exaggeration to say… | ||
| scan0003 | Article from 'The Motor' magazine describing the Lentz transmission gear system. | ||
| View original record | 14th November, 1911. 735 The Motor LENTZ TRANSMISSION GEAR.—Contd. is being poured in; the said vent holes, of course, being afterwards plugged. With the engine running then, we now have the oil in… | ||
| scan0004 | Article from 'The Motor' magazine discussing the Lentz hydraulic transmission gear. | ||
| View original record | The Motor 736 14th November, 1911. LENTZ TRANSMISSION GEAR.—Contd. transmission (the word “hydraulic” is used in its colloquial and broad sense to include other fluids in addition to water) we have… | ||
| scan0005 | Departmental memo requesting an opinion on the Lentz gear. | ||
| View original record | R.R. 476 (50 H) (X 165. 30.11.11). E P. 683 ROLLS-ROYCE LIMITED, 14-15, CONDUIT STREET, LONDON, W. TELEGRAMS; "ROLHEAD," LONDON. TELEPHONES: 1654, 1655, 1656 GERRARD. DEPARTMENTAL MEMO. This column is… | ||
| scan0006 | Departmental memo requesting committee opinions on the Lentz hydraulic gear. | ||
| View original record | R.R. 475' (50 H) (X 448. 16.12.11). E P. 798. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (TWO LINES). Ref. 88. DEPARTMENTAL MEMO. RECEIVED 2524 This… | ||
| scan0007 | Potential benefits of the Lentz hydraulic gear and suggesting practical tests. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). R.R. 475 (50 H) (X 303. 14.II.II). E.P. 560. N3/B9112. DEPARTMENTAL MEMO. Z 524 This column is… | ||
| scan0008 | Departmental memo requesting and providing opinions on the Lentz hydraulic gear. | ||
| View original record | R.R. 475 (50 H) (X 448. 16.12.11). E P. 798. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. DEPARTMENTAL MEMO. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). RECEIVED Z 524 STAMP: 9 JAN This… | ||
| scan0009 | To Mr. Barrington explaining the calculated efficiency of the Lentz Hydraulic System. | ||
| View original record | R.R. 300 6.11. (W. 524 25.5.11) G. 1693. ROLLS-ROYCE LIMITED. INSTRUCTIONS. K/ 15-1-1912 To: Mr Barrington Order No.: Customer's No.: Z 524 Re: Lentz Hydraulic System My estimated efficiency of 75%… | ||
| scan0010 | The disadvantages of the Lentz Hydraulic Transmission system. | ||
| View original record | 524 January 15th. 1912. Lentz Hydraulic Transmission. -------------------- The main disadvantages to this system are as follows :- 1. The moveable ~~veins~~ vanes are kept in contact with the outer… | ||
| scan0011 | Technical analysis of the issues and principles of hydraulic transmissions, with a focus on the Lentz gear system. | ||
| View original record | (2) type, but in the Lentz gear, the losses on the high gears will probably be greatest. 4. I believe most hydraulic transmissions suffer from the difficulty of air finding its way into the passages… | ||
| scan0012 | Page concluding against the use of the Lentz hydraulic gear due to its operational disadvantages. | ||
| View original record | (3) throw pumps for the purpose of obtaining the speed changes, that is to say, the Lentz gear gives an absolutely steady torque, and this I consider to be of great importance, and a result which has… | ||
| scan0013 | Extract from Mr Bailey's Olympia Report on a Dr Lentz hydraulic transmission system. | ||
| View original record | Z 524 January 15th. 1912. Extract from Mr Bailey's Olympia Report:- Hydraulic Transmission. The only system shown was that of Dr Lentz. This, in my opinion, - while being very ingenious and having… | ||
| scan0014 | Comparison of the Hele Shaw system against the Lentz system and ordinary mechanical change gear. | ||
| View original record | (2) The Hele Shaw system would give all the above good points and would not be liable to develop leakage trouble in use anything like as quickly or of such large dimensions as the Lentz system, but so… | ||
| scan0015 | Report by Mr. Bailey on the estimated efficiency of the Lentz Hydraulic System. | ||
| View original record | = 524 Copy of Mr Bailey's report dated - January 15th.1912. Lentz Hydraulic System. My estimated efficiency at 75% was based upon the fact that for a single pump, a general efficiency is about 80%;… | ||
| scan0016 | Forwarding a description of the Lentz gear from a publication and reports from committee members. | ||
| View original record | Z 524 Re Lentz Gear. TBB1/L15112. Mr Johnson 15/1/12. I send you herewith a description of the Lentz gear from "The Motor" of November 14th. 1911, together with the reports of the members of the T.C.… | ||
| scan0017 | Departmental memo discussing the inefficiency of the Lentz gear. | ||
| View original record | R.R. 475 (50 H) (X 448. 16.12.11). E.P 798. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (TWO LINES). N21/B15112. DEPARTMENTAL MEMO. This column is for… | ||
| scan0018 | Departmental memo discussing Mr. Platford's initial negative opinion on the Lentz Gear system and plans for further investigation. | ||
| View original record | R.R. 475 (50 H) (X 448. 16.12.11) E.P 798. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| scan0019 | Departmental memo regarding reports on the Lentz Gear and arranging a chassis for testing. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person addressed. DATE. Re Lentz Gear. 2.524 Mr… | ||
| scan0020 | Departmental memo regarding the testing of axles for the Lentz Gear. | ||
| View original record | R.R. 475 (50,H) (X 737. 18.3.12) E.P. 1495. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (TWO LINES). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| scan0021 | Letter from S.H. Morden enclosing a description and diagrams of the 'Strat' Gear for the attention of Mr. E.W. Hive. | ||
| View original record | TELEPHONE: VICTORIA 9865. TELEGRAMS: SNEDROM, PARL, LONDON S.H. MORDEN. X2061 St. Stephen's House, Victoria Embankment, Westminster. 7th October 1925. Messrs. Rolls Royce, Ltd., DERBY. Dear Sirs, For… | ||
| scan0022 | Hand-drawn diagram illustrating a mechanical concept involving a crankshaft, friction wheel, and an expansible track. | ||
| View original record | 62 A Crankshaft + driving shaft B Friction Wheel & driven member C Expansible track. A B C Fig 1. | ||
| scan0023 | Design drawing of an expansible track friction drive mechanism. | ||
| View original record | A Crankshaft + driving shaft B Friction wheel + driven member C Expansible track. Aug II. | ||
| scan0024 | Brief description of the STRAT GEAR mechanism and its principles of operation. | ||
| View original record | 3 Brief description of STRAT GEAR. The action of this Gear depends mainly on the hypocyclic motion of a wheel rolling upon the inner surface of a cylinder or track of variable internal diameter. This… | ||
| scan0025 | Page 2 of a document describing the functions and chief features of a variable speed gear. | ||
| View original record | (2) toothed wheels one of which is fixed to the member and the other to the driven shaft. This set of toothed wheels perform three important functions, (1) of transmitting the hypocyclic motion only… | ||
| scan0026 | Letter discussing an article on a competitor's silent four-speed internal-underdrive transmission and suggesting experimental development. | ||
| View original record | S/W AR X2061 Oy2-E-21427 February 14, 1927. Mr. Basil Johnson, Rolls-Royce, Ltd., London, England. For Mr. F. H. Royce. (Copy for Mr. Hives " " Mr. Haldenby " " Mr. Nadin) Re Gearbox Dear Mr. Royce:… | ||
| scan0027 | Merits of Bostock & Bramley's parallel worm gears compared to other types for use in engines and chassis. | ||
| View original record | RG. E. from R. BY. Hs. c. to BJ. Wor. Fl. +2061 R2/M8.4.28. AERO ENGINES, CAR ENGINES, X.4017 & CHASSIS WORK. X.2061 WORM GEARS & AERO MAGNETO DRIVES. X.3837 X.8170 There are so many forms of teeth… | ||
| scan0028 | Cover note regarding details of a patent gearbox and an attached letter. | ||
| View original record | P/W "Hs" X.2661 Ps5/RJ.15/6/28 Herewith details of a Patent Gear Box. If it does not interest you, kindly return the attached to Mr. Loyer, as per attached letter. Ps. ENCLOSURE Nº 740 "JUSTSO" | ||
| scan0029 | Letter to Messrs. Pierre Loyer rejecting their proposal for a simplified gear changing mechanism. | ||
| View original record | +2061 Expl: Dept: Hs/Rm4/LG. 18th. June 1928. Messrs. Pierre Loyer, 25, Rue Lavoisier, Paris, France. Dear Sirs, With reference to your letter of the 14th.inst. and attached explanation of simplified… | ||
| scan0030 | Letter to Mr. Basil Johnson regarding developments in gearbox technology in the United States. | ||
| View original record | X2061 S/W #S OY/.R.8.31.28. August 31st 1928. Mr. Basil Johnson, C/o Rolls-Royce Ltd., London, England. cc Mr. F.H.Royce. Mr. E.I.Day. Mr.R.W.H.Bailey. Mr. E.W.Hives. Dear Mr.Johnson, RE GEARBOX. We… | ||
| scan0031 | From Maurice Olley to Mr. Royce regarding the design and quiet operation of an Ahlen gearbox. | ||
| View original record | -2- to Mr.Royce. We do not know whether this demonstration has already taken place. We suggest that the Ahlen is one of the most interesting designs, since the engagements are made by dog-clutch with… | ||
| scan0032 | Gearbox invention by M. Viarengo. | ||
| View original record | Sèvres/W. Hs. x2061. HmI/Dn/Crn.16.7.30. Re: Gearbox invention - M. Viarengo. The writer of the attached letter has invented a new type of gearbox. Will you please take up this matter with him, if you… | ||
| scan0033 | Letter from M. Viarengo offering a patent for a progressive speed change system for automobiles. | ||
| View original record | M. VIARENGO (Italie) PINEROLO (Turin) BREVET D'INVENTION Respectable Maison ROLLS-ROYCE-125-Avenue Malakoff-125 PARIS Pinerolo, li. 8 juillet 1930 Messieurs, J'ai l'honneur de vous communiquer que je… | ||
| scan0034 | Enclosed particulars of a Mercedes supercharged straight 8 and its gearbox. | ||
| View original record | To Hs. from Sg. Sg9/E23.9.30 I enclose particulars of a 45/280 HP Mercedes supercharged straight 8 which have been sent me by one of our retailers, together with particulars of the… | ||
| scan0035 | Enquiries into the Daimler easy change gearbox and fluid flywheel before the Motor Show. | ||
| View original record | To C. From Hs/Rm. Y 2061 Hs/Rm.3/MJ.27.9.30. With reference to C16/C26.9.30. We will try to find out all we can about the Daimler easy change gearbox and fluid flywheel, and will let you have the… | ||
| scan0036 | Inquiry regarding the Daimler easy change gearbox and fluid flywheel. | ||
| View original record | x2061. S/W Hs/Rm C24/C13.10.30 With reference to your Hs/Rm3/MJ27.9.30 I shall be interested to know if you can let us have any information in regard to the Daimler easy change gearbox and fluid… | ||
| scan0037 | Location of a full report on the tests of a Daimler Fluid Flywheel. | ||
| View original record | x2061. C. from Hs. Hs1/AD14.10.30. DAIMLER FLUID FLYWHEEL. Replying to C24/C13.10.30, a full report of the tests on a Daimler car with fluid flywheel was given in our Hs/Rm3/MJ7.10.30, a copy of which… | ||
| scan0038 | Confirming sight of a report on trials in London and Paris, which referenced the Daimler gearbox. | ||
| View original record | S/W Hs X2061. C2/C15.10.30. Daimler Fluid Flywheel. Hsl/AD14.10.30 -------- Thanks for your memo. I have now seen Sg's copy of Rm's very interesting report on the trials made in London and Paris,… | ||
| scan0039 | The progress of experiments with Maybach type clutches and helical 3rd speed. | ||
| View original record | HS. FROM DA. X2061 DA3/M14.11.30. X.2061.X.2200 X.3531 We should be very interested to hear how the experiments with the Maybach type of clutches in conjunction with the helical 3rd. speed are getting… | ||
| scan0040 | Post Office Telegram enquiring about the delivery of a Chrysler gearbox. | ||
| View original record | X2061. WEST WITTERING POST OFFICE TELEGRAPHS. No. 0205 Office Stamp: DERBY 27 JLY 37 257 4:44 WESTWITTERING CHA 18 STIVES ROYCAR DERBY HAVE NOT YET RECEIVED CHRYSLER GEARBOX HAVE YOU ANY INFORMATION… | ||
| scan0041 | Implications of a shorter gear lever on the Chrysler gearbox in a Right-Hand drive chassis. | ||
| View original record | HS. FROM DA. COPY. X206 DA5/M3.2.31. CHRYSLER GEARBOX On the R.H. chassis the gear lever is necessarily shorter than on the Chrysler, or our own L.H. chassis. This will mean that we shall wish to make… | ||
| scan0042 | Potential use of a Chrysler gearbox to avoid delays associated with a new design. | ||
| View original record | HS. FROM DA. CHRYSLER GEARBOX. In view of the latest telegrams from R. re. gear change from the steering column etc. we think it is very important that we should know whether the Chrysler gearbox with… | ||
| scan0043 | Confirming the dispatch of a Chrysler gearbox by passenger train. | ||
| View original record | X2061 HS. FROM DA. DAZ/M14.2.31. We have despatched the Chrysler gearbox to you by passenger train today. DA. | ||
| scan0044 | Letter to the Experimental Department regarding a new patented Infinitely Variable Gear. | ||
| View original record | 82061. B. VALLANCE, ENGINEER. 52, Southbourne Grove, Westcliff-on-Sea. SPECIALIST IN AERIAL ROPEWAYS. CONVEYORS. ETC. 11th. April 1931 L. Hives Esq. Experimental Department Messrs Rolls Royce Ltd.… | ||
| scan0045 | Letter outlining the final conditions for a gear invention and proposing a meeting to present designs for a motor car and motor bicycle. | ||
| View original record | (6) Where required it must be possible for the gear to be Automatic and on the other hand it must be possible to arrange the control so that any ratio can be set by a lever or equivalent , and the… | ||
| scan0046 | Letter from the Experimental Department requesting patent information for an Infinitely Variable Gear. | ||
| View original record | 82061 Expl. Dept. Hs.8/MJ. April 13th.1931. B. Vallance, Esq., 52, Southbourne Grove, Westcliffe-on-Sea. Dear Sir, We are in receipt of your letter of April 11th. with reference to the Infinitely… | ||
| scan0047 | Letter from engineer B. Vallance responding to queries on a freewheel gear design. | ||
| View original record | (2061. B. VALLANCE, ENGINEER. 52, Southbourne Grove, Westcliff-on-Sea. SPECIALIST IN AERIAL ROPEWAYS. CONVEYORS, ETC. Messrs Rolls-Royce, Ltd Derby Expl. Dept April 27 1931 Dear Sir In reply to your… | ||
| scan0048 | Obtaining competitor cars, a Voisin and a Graham Paige, to evaluate their gearbox technology. | ||
| View original record | γ2061. To Hs. from Sg. Easy Change Gear. Sg2/E4.5.31 x5>3. [STAMP: RECEIVED 10 MAY 1931] Referring to Hs.5/MJ.2.5.31 I note you were unable to see or try a Voisin car with magnetic controlled double… | ||
| scan0049 | The 'Volson Gear' and a reference to a previous sketch and description. | ||
| View original record | 82061. To R. From Hs. c. to Sg. Wor. c. to R. Ds. c. to By. He.1/MJ.5.5.31. VOLSON GEAR. We find that a sketch of this gear and a description was contained in Rm's. Paris Show report 1930 (Ref:… | ||
| scan0050 | Letter from consulting engineer W.W. Constantine regarding a royalty fee for a synchro-mesh transmission patent. | ||
| View original record | COPY. W. W. CONSTANTINE, 111, Grosvenor Road, Consulting Engineer, LONDON. S.W.1. 4th. June 1931. Messrs. Rolls-Royce Ltd., Derby. For the attention of R. W. Harvey-Bailey, Esq. Dear Sirs, RE: SYNCHRO… | ||
| scan0051 | Sketch detailing the lubrication method for the 3rd motion shaft in a Chrysler spool gearbox. | ||
| View original record | To E. From Hs/Gry c. to Da. Hs/Gry.6/MA.1. 12. 31. We send herewith a sketch of the lubrication of the nose of the 3 rd. motion shaft in the Chrysler spool gear box. This method by the hole drilled at… | ||
| scan0052 | Blueprint detailing a Chrysler 1st Motion Shaft and its components. | ||
| View original record | BRONZE SPOOL GEAR 3 HOLES EQUALLY SPACED SPHERICAL SEATS .035 DIA + .025 DEEP CHRYSLER 1st MOTION SHAFT SHEWING 3rd MOTION SHAFT BEARING | ||
| scan0053 | Comparing transmission slack and 'chunking' noise in cars fitted with the Wilson epicyclic gearbox. | ||
| View original record | To Hdy. From Hs/Gry. Hs/Gry.4/MJ.3.2.33. EPICYCLIC GEARING. Hdy.1/M28.1.33. In order to find the amount of slack in the transmission caused by the Wilson gearbox we tried both our Lanchester car and… | ||
| scan0054 | Keeping in touch with Maybach about their new gearbox. | ||
| View original record | S/W. To E. from F. Copy to Wor. " " Hs. X2061 F7/LAM.20.5.33. Re: MAYBACH TRANSMISSION. In accordance with your request some time ago, we have kept in touch with the Maybach people with a view to… | ||
| scan0055 | Letter from Ernst Schneider discussing developments in gearbox and transmission technology, including Maybach and semi-automatic types. | ||
| View original record | COPY OF LETTER FROM ERNST SCHNEIDER, Lincoln House. 18 Victoria Street, London. S.W.1. Your Ref: F23/JL18533. Our Ref. ES/RP Confidential. 19th May, 1933. Lt. Col. L.F.R. Fell, D.S.O., O.B.E.,… | ||
| scan0056 | Letter from Ernst Schneider discussing a potential manufacturing agreement for a transmission. | ||
| View original record | - 2 - If you think that this transmission would appeal to your firm, I would ask my principals for permission to take the matter up officially with you; although we already have a certain… | ||
| scan0057 | Cover note for a letter addressed to Mr. A. Hukins of E.N.V. Engineering Co. Ltd. concerning a Preselective Gear Box. | ||
| View original record | To Sg. ) Wcr. ) from E. By. ) Hs. ) E.1/HP.20.7.33. re Preselective Gear Box. We attach hereto copy of a letter we have addressed to Mr.A.Hukins, of the E.N.V.Engineering co.Ltd, E. | ||
| scan0058 | Letter to E.N.V. Engineering regarding a preselective gearbox and its suitability for testing. | ||
| View original record | E.8/HP. 18th July 1933. Mr. A. Hukins., Messrs. E.N.V.Engineering Co.Ltd., 4 & 5 Hythe Road, Willesden, LONDON.N.W.10. Dear Sir, re Preselective Gear Box. ------------------------ Replying to your… | ||
| scan0059 | The testing and analysis of a synchromesh gearbox from an Alvis chassis. | ||
| View original record | X2061 To E. from Ha/Gry. C. Nor. C. C. By. Ds. C. Hy. Ha/Gry.1/KT.13.9.33. SYNCHROMESH GEARBOXES. We have just had an opportunity of trying one of the new 2½ Litre "Speed 20" Alvis chassis fitted with… | ||
| scan0060 | Letter to Bernard Thomson returning a loaned portfolio on synchromesh gearboxes. | ||
| View original record | R2061 Experimental Dept. Hs/Cry. E/KT. Sept 19th 1933. Bernard Thomson Esq., Combe Close, Woldingham. Dear Sir, We thank you for the loan of the attached portfolio on synchromesh gearboxes and are… | ||
| scan0061 | Proposal to fit a servo to an E.N.V. gearbox for trial on a 20/25 car. | ||
| View original record | X2501 To HY. from HDY. HDY.1/HP.29.9.33. ---------------- c. WGT. E. Hs. Lg. RWC. ----------------------- E.N.V. Gearbox. --------------- N. Sch.3830 herewith shews how we propose to fit a servo to… | ||
| scan0062 | The trial of a Reo car fitted with an automatic gear change. | ||
| View original record | To Wor. From Hs/Gry. C. C. E. E. Rv. D. HGy. F.M. Rm. Hs/Gry.2/HT.10.10.33. X2861 GEARBOXES. We have been able to try the Reo car fitted with an automatic gear change. The car has two two-speed boxes… | ||
| scan0063 | Two suggested modifications to the E.N.V. gearbox casing for the 20/25 Car to increase strength. | ||
| View original record | 12067 To BY. from HDY. C. W.or. E. Hs. Drw. E.N.V. Gearbox in 20/25 Car. With reference to the extension on the E.N.V. gearbox which takes the servo as shewn by N. Sch. 3830, E. has suggested two… | ||
| scan0064 | The De Normanville gearbox, tested on a Humber car, detailing its operation and suitability. | ||
| View original record | To Wcr. From Hs/Gry. C.c. Sg. C. C. Hy. E. C. Hdy. DE NORMANVILLE GEARBOX. We have tried this gearbox fitted to a 24 HP. Humber car lent by Humber Ltd. of Coventry. The gearbox has a four forward… | ||
| scan0065 | Issues and observations on a car's transmission and engine performance. | ||
| View original record | -2- Ha/Gry.10/KT.3.11.33. (3) When in neutral accelerating the engine causes the car to move forward with a small jerk. (4) At times when idling the oil pump could be heard making a hissing noise. (5)… | ||
| scan0066 | Responding to a report on the 'Humber' Epicyclic Gearbox and agreeing with a recommendation. | ||
| View original record | x2057 To Hs. from Sg. re 'Humber' Epicyclic Gearbox. Sg2/E6.11.33 Copy to WOT.S. E.Hdy. Thanks for Hs.6/MJ.3.11.33, the contents of which I have noted carefully, and I have also to-day seen Gry's… | ||
| scan0067 | Letter to Messrs. Pratt & Manley declining an interview but requesting drawings for the Puls Pre-selective Gearbox. | ||
| View original record | COPY TO: HS. from HDY. X2061 HDY.1/HP. 8th November 1933. Messrs. Pratt & Manley., 23, Guildhall Buildings, Navigation Street, BIRMINGHAM. Dear Sirs, Puls Pre-selective Gearbox.… | ||
| scan0068 | Merits of preselective gearboxes versus synchromesh patterns for various vehicles. | ||
| View original record | X2067 To Sg. from E. E.6/Mr.10.11.33. c. Wep. U. Hs. By. Ex. HDF. re Humber Epicyclic Gearbox. Replying to your memo Sg.8/E.9.11.33, the patterns for the gearbox with the synchro mesh on the second… | ||
| scan0069 | The patterns for the Humber Epicyclic Gearbox for the 40/50 and 20/25 models. | ||
| View original record | HS X2061 To E. FROM Sg. Copy to WOP.C.Hs. BY C.HEY. re Humber Epicyclic Gearbox. Sg13/E13.11.33 I am in receipt of E.6/HP.10.11.33. I shall be glad to know whether the patterns for the gearbox… | ||
| scan0070 | Information for fitting an E.N.V. gearbox on a 20/25 car. | ||
| View original record | GARY x2061 23 To BY. from HDY. HDY.2/HP.17.11.33. c. Mr. E. Hs. De. HHG. E.N.V. Gearbox on 20/25. We send the remaining information for the fitting of the E.N.V. gearbox in a 20/25 car, as shown by N.… | ||
| scan0071 | Note on modifications to the silencer and gearbox selector lever. | ||
| View original record | - 2 - 23 HDY.2/HP.17.11.33. ------------------- It has been necessary to incline the silencer to clear the servo. The selector lever on the gearbox is operated by a flexible Bowden type control. HDY. | ||
| scan0072 | Proposed stay for the E.N.V. gearbox on the 20/25 model. | ||
| View original record | To BY. from HDY. c. WOF. E. Hs. MHC. Dev. HDY.1/HP.24.11.33. X2061 E.N.V. Gearbox in 20/25. M. Sch. 3885 herewith shows a stay which we think should be fitted to relieve the servo extension casting… | ||
| scan0073 | Modifications to an E.N.V. gearbox for a 20/25 model, retaining the existing clutch but with a modified shaft and a new lever. | ||
| View original record | To BY. from HDY. c. Wor. H. Hs. Dev. H.B. 12061 HDY.1/HP.22.12.33. GRY E.N.V. Gearbox in 20/25. With reference to this gearbox, it now appears that Messrs. E.N.V. much prefer that we retain our engine… | ||
| scan0074 | Attached letter from C.H. Humphreys Ltd about a car. | ||
| View original record | Hs. from Wor. GRY Wor3/T17.1.34. See me Re attached letter from C.H. Humphreys Ltd of Wilson Bros & Humphreys Ltd. Hs Would you like to see this car in case it is worth anything? Wor. attd | ||
| scan0075 | Letter from Wilson & Humphreys Ltd. proposing an invention for a preselection gearbox. | ||
| View original record | COPY. WILSON & HUMPHREYS LTD., 23, ST. MARYS, BEDFORD. 12th January, 1934 R3f.3A/R2/34. - Wormell Esq., c/o Messrs. Rolls-Royce Ltd., DERBY. Dear Mr. Wormell, I understand that you are the Authority… | ||
| scan0076 | Trial report on an Isotta car fitted with a Wilson Gearbox and vacuum servo actuation. | ||
| View original record | X2067 To Eg. Wcr. P. Hs. By. Pe. Hs/Gry. HDY.1/HP.23.2.34. Wilson Gearbox with Servo Actuation. Da. Hs/Gry. and I have recently tried an Isotta fitted with a Wilson gearbox, a separate engine clutch… | ||
| scan0077 | Returning papers and concluding that the Campbell Gearbox design is not of interest. | ||
| View original record | W/S. To F.from E. c. Hs. x2061 E.3/HP.28.3.34. re Campbell Gearbox. I am returning herewith the papers in connection with the above together with memo HDY.2/HP.24.3.34, from which you will see that… | ||
| scan0078 | Pre-selection device for synchromesh gearboxes from the Highfield Gear Co., detailing its operation and a potential fault. | ||
| View original record | X 20(61) To E. from HDY. c. Hs. Ba. By. HDY.1/HP.11.4.34. GRY See me HE Pre Selection Device for Synchromesh Gearboxes by the Highfield Gear Co. Huddersfield. By means of a picking up device and cams… | ||
| scan0079 | Assessment of a pre-selection device for synchromesh gearboxes designed by Alfred Herbert Limited. | ||
| View original record | To E. from HDY. c. Hs. By. GRY See me HE Pre selection Device for Synchromesh Gearboxes by Alfred Herbert Limited March 1933. A hand lever actuates circular cam plates which are moved bodily by the… | ||
| scan0080 | Letter from Burgess Products Company inviting executives for a demonstration of the Monodrive automatic transmission. | ||
| View original record | TELEPHONE: TEMPLEBAR 2192 Factory and General Offices: Barwell, Leicester. TELEPHONE: NO. 141 EARL SHILTON. TELEGRAMS: "BURDUCTO, BARWELL." TELEGRAMS: "BURDUCTO, BUSH, LONDON" BURGESS PRODUCTS COMPANY… | ||
| scan0081 | Letter from Burgess Products Company arranging a meeting regarding the 'Mono-Drive' transmission. | ||
| View original record | X2061 TELEPHONE: TEMPLEBAR 2192 Factory and General Offices: Barwell, Leicester. TELEPHONE: NO. 141 EARL SHILTON. TELEGRAMS: "BURDUCTO, BARWELL." TELEGRAMS: "BURDUCTO, BUSH, LONDON" BURGESS PRODUCTS… | ||
| scan0082 | Attaching a copy of I.A.E. Research and Standardisation Committee Report No. 7064. | ||
| View original record | x2061 E. Hs. BY/Mtn16/N.23.4.34. We attach hereto copy of I.A.E. Research and Standardisation Committee Report No.7064 for your information. BY/Mtn. | ||
| scan0083 | Research document summarizing tests on 'spoked' phenolic laminated gears to assess noise, resilience, and shock resistance. | ||
| View original record | Copy. Y2061 I.A.E. RESEARCH AND STANDARDISATION COMMITTEE. Research Department, No.7064 Class 336, 67. 5, Bolton Road, Chiswick, W.4. March 1934. 'Spoked' Phenolic Laminated Gears. J.A.Petho, Aut.… | ||
| scan0084 | Observations on American gearboxes, specifically from Cadillac and Lincoln. | ||
| View original record | x2061 To Hs/Rm. from HDY. HDY.2/HP.27.4.34. Rm American Gearboxes. Many thanks for the pictures of the Cadillac 16 and Lincoln gearboxes and clutches. The Cadillac is not much changed from what is… | ||
| scan0085 | Delay in the production of the E.N.V. 'Wilson' Epicyclic Box for an experiment. | ||
| View original record | To Sg. and Wcr. from E. c. Hs. RHC. X2061 GRY E.2/HP.27.4.34. re 'Wilson' Epicyclic Box on 20/25. Referring to the above, there has been considerable delay in connection with the production of the… | ||
| scan0086 | Extract from the 'Commerce' magazine describing a new automatic transmission device called MONO-DRIVE. | ||
| View original record | x2061 Extract from "Commerce" 1933 "A new Device to remake Auto Market" In the list of new products, methods and devices offered this month is one which departs from the field suggested for this… | ||
| scan0087 | Description of the MONO-DRIVE automatic transmission system and its commercial application in a streamlined Rail-Plane. | ||
| View original record | - 2 - It is possible to go to 15 or 50 m.p.h. in second, as the driver desires. With the foot off the gas the car will drift to a stop or can be stopped with a jerk by using the regular brake but the… | ||
| scan0088 | Letter to Ford Motor Co. asking for information on American gear steels, their suppliers, and heat treatment specifications. | ||
| View original record | X 2061 Expl. Dept. Hs/Rm.11/MJ. 24th. April, 1934. A.R.Smith Esq., General Manager, The Ford Motor Co. Ltd., Dagenham, Essex. Dear Mr. Smith, I am sorry to trouble you again but I want to take… | ||
| scan0089 | Letter from Ford Motor Company acknowledging a request for information on American gear steels and Lincoln car ventilators. | ||
| View original record | X2061 Ford Motor Company, Ltd. DAGENHAM Essex. TELEPHONE: RAINHAM 300. TELEGRAMS: FORDMOTOR, TELEX, DAGENHAM. CABLES: FORDMOTOR, DAGENHAM. PLEASE ADDRESS ALL COMMUNICATIONS TO THE COMPANY IN YOUR… | ||
| scan0090 | Letter from Ford Motor Company detailing the chemical composition analysis of various American gear steels. | ||
| View original record | COPY. 1183 FORD MOTOR COMPANY LTD., DAGENHAM, ESSEX. Dept. A-5 W.A. Robotham, Esq., Messrs. Rolls-Royce Ltd., Derby. 3 May 1934. Dear Mr. Robotham, In reply to your letter of the 24th ultimo on the… | ||
| scan0091 | Page 2 of a letter from Ford Motor Company detailing steel composition and heat treatment recommendations. | ||
| View original record | -2- 3.5.34. Carbon .38/.42% Manganese .65/.80% Chromium .90/1.1% Silicon .10/.20% Phosphorus .03% max. Sulphur .04% max. The normalising temperature for such a steel is between 1650-1750 deg.Fah.… | ||
| scan0092 | Letter from Ford Motor Company regarding the analysis and composition of American gear steels. | ||
| View original record | Ford Motor Company, Ltd. DAGENHAM Essex. TELEPHONE: RAINHAM 300. TELEGRAMS: FORDMOTOR, TELEX, DAGENHAM. CABLES: FORDMOTOR. DAGENHAM. PLEASE ADDRESS ALL COMMUNICATIONS TO THE COMPANY IN YOUR REPLY… | ||
| scan0093 | Letter from Ford Motor Company discussing steel composition and various heat treatment recommendations. | ||
| View original record | Ford Motor Company, Ltd. CONTINUING OUR LETTER OF 3.5.34. SHEET NO. 2 Jr W A Robotham Esq Carbon .38/.42% Manganese .65/.80% Chromium .90/1.1% Silicon .10/.20% Phosphorus .03% max. Sulphur .04% max.… | ||
| scan0094 | Letter to Ford Motor Co. Ltd. regarding steel gears, cyaniding, and Aerolite pistons. | ||
| View original record | X2061 Exptl. Dept. Hs/Rm.21/KW. 7th May, 1934. A.R. Smith, Esq., The Ford Motor Co.Ltd., Dagenham, Essex. Dear Mr. Smith, Thank you so much for your letter and your information on steels, it is most… | ||
| scan0095 | Letter to Brayshaw Furnaces & Tools Ltd. requesting cyanide hardening services for experimental gearbox gears, including material specifications and current heat treatment. | ||
| View original record | X2061 Exptl. Dept. Hs/FJH.6/KW. 8th May, 1934. Messrs. Brayshaw Furnaces & Tools Ltd., MANCHESTER, 15. Dear Sirs, We are writing to ask you whether you can cyanide harden some gears for us. The gears… | ||
| scan0096 | Letter specifying the heat treatment process and hardness requirements for gears. | ||
| View original record | -2- HS/FJH.6/KW. 8.5.34. We suggest a case of from 0.010" to 0.015" thick and that you should cyanide treat the gears at 820°C and quench in oil following with a quench from 760°C as above. However,… | ||
| scan0097 | Letter from Ford Motor Company regarding cyaniding gears, oil consumption, and 'Aerolite' pistons. | ||
| View original record | x2061 Ford Motor Company, Ltd. DAGENHAM Essex. TELEPHONE: RAINHAM 300. TELEGRAMS: FORDMOTOR, TELEX, DAGENHAM. CABLES: FORDMOTOR, DAGENHAM. PLEASE ADDRESS ALL COMMUNICATIONS TO THE COMPANY IN YOUR… | ||
| scan0098 | Letter from Brayhsaw Furnaces & Tools, Ltd. regarding the casehardening process for gears. | ||
| View original record | X2061 ALL COMMUNICATIONS TO BE ADDRESSED TO MULBERRY STREET. BRAYSHAW FURNACES & TOOLS, LTD. IN YOUR REPLY PLEASE QUOTE OUR REFERENCE:- HFH/EW. Telegrams: "HARDENING,MANCHESTER." Telephones: 1147 MOSS… | ||
| scan0099 | Letter from The Bristol Aeroplane Company Ltd regarding the testing of a 'Spontan gear' fitted to a Rover car. | ||
| View original record | LONDON OFFICE:- BUSH HOUSE, ALDWYCH, W. C. 2. TELEPHONE: TEMPLE BAR 7193 TELEGRAMS: "BRISTAIRCO, BUSH LONDON" TELEGRAMS:- INLAND: AVIATION, PHONE, FILTON. FOREIGN: AVIATION, FILTON. CODES:- WESTERN… | ||
| scan0100 | Letter to Messrs. A.C. Wickman Ltd. arranging a demonstration of the Spontan Gear. | ||
| View original record | x2061 Exptl. Dept. HS/Gry.28/KW. 16th May, 1934. Messrs. A.C. Wickman Ltd., Coventry. Dear Sirs, For the attention of Mr. Wickman. We have heard from Mr. Fedden that you would be willing to… | ||
| scan0101 | Follow-up memo requesting the current status of the 'Wilson' Epicyclic Box on the 20/25 model. | ||
| View original record | Hs X2061 To E. from Sg. Copy to Wor.Hs. REC re 'Wilson' Epicyclic Box on 20/25. Sg13/E17.5.34 Referring to E.2/HP.27.4.34 I should be glad to know what the present position is. Sg. | ||
| scan0102 | Letter from A. C. Wickman, Ltd. arranging a demonstration of a car fitted with the Spontan gear. | ||
| View original record | A. C. WICKMAN, LTD. MACHINE TOOL SPECIALISTS, COVENTRY, ENGLAND. DIRECTORS: A. C. WICKMAN, C. D. GAY TELEPHONE: (COVENTRY) 4145. TELEGRAMS: WICKMAN, COVENTRY WICKMAN GAUGES BRANCH OFFICES: LONDON: 10,… | ||
| scan0103 | Letter to Messrs. A.C. Wickman Ltd. confirming a visit to Coventry to try the Spontan gear. | ||
| View original record | X206/ Exptl. Dept. Hs/Gry.11/KW. 23rd May, 1934. Messrs. A.C. Wickman, Ltd., Machine Tool Specialists, COVENTRY. For the attention of Mr. Wickman. Dear Sirs, Many thanks for your letter of the 18th.… | ||
| scan0104 | Letter from A.C. Wickman Ltd. confirming a meeting appointment regarding Spontan Gear. | ||
| View original record | X2061 ACW A. C. WICKMAN, LTD. MACHINE TOOL SPECIALISTS, COVENTRY, ENGLAND. DIRECTORS: A. C. WICKMAN, C. D. GAY TELEPHONE: (COVENTRY) 4145. TELEGRAMS: WICKMAN, COVENTRY WICKMAN GAUGES BRANCH OFFICES:… | ||
| scan0105 | Performance and potential power loss of the Wilson Gearbox in a race. | ||
| View original record | x2061 To E. from HDY. HDY.3/HP.21.9.34. c. Hs. Ba. Hs/Gry. Wilson Gearbox. When at Coventry yesterday we were told that on one make of car which ran in the recent Ulster T.T.race it was found that the… | ||
| scan0106 | Listing the advantages of an infinitely variable and automatic gear system. | ||
| View original record | Litcham, Kings Lynn, Norfolk. The advantages of the gear are as follows : (I) The gear is infinitely variable , and involves none of the ordinary gear--changing,which many people find difficult. (2)… | ||
| scan0107 | The 4-speed synchromesh gearboxes of Alvis, Hillman, and Humber cars from the 1934 Olympia Motor Show. | ||
| View original record | GRY To W. from HDY. HDY.1/HP.23.10.34. c.c. Sgr. Hcp. Hs. Bn. rys. Ra/Gry. Alvis, Hillman and Humber 4 Speed Synchromesh Gearboxes at Olympia 1934. As requested in E.1/HP.8.10.34, I give below a… | ||
| scan0108 | Evaluation of vehicle noise levels at different speeds and a design analysis of the gearbox. | ||
| View original record | - sheet 2 - Silence. -------- The car was not sufficiently quiet generally to enable an accurate comparison to be made with our cars. My impression was that the silence was good except on the… | ||
| scan0109 | Technical comparison and critique of gearbox components and design features for various car models. | ||
| View original record | - sheet 3 - (2a) The reverse is by a double width pinion engaging with the 1st speed pinion and an extra large gear alongside the 1st speed wheel. The reverse pinion has double the normal travel and… | ||
| scan0110 | Technical analysis document discussing various gearbox components like synchromesh, gears, shafts, and oil grooves. | ||
| View original record | - sheet 4 - control of the sliding pieces on the 3rd motion shaft. The operation of these pieces could be observed on a box shown separately in the Annexe and it could be seen that they tilted… | ||
| scan0111 | Potential improvements and considerations for gearbox design, including gears, cams, and synchronisation. | ||
| View original record | - sheet 5 - More Solid Gears. We have noticed that the gears of American boxes are stronger than appears necessary but the reason may be more connected with distortion in hardening and the use of… | ||
| scan0112 | Technical discussion on gearbox design, comparing cone placement on the upper shaft versus the layshaft, and the implications for synchromesh gears. | ||
| View original record | - sheet 6 - (1) When the cones are placed on the upper shaft as on the Alvis and Hillman, the operation of the gear change requires too much effort except perhaps on a small car. (2) When the cones… | ||
| scan0113 | Sg. to Rm. chasing an update regarding Dr. E. Ivimy Puddy. | ||
| View original record | S/W To Rm. from Sg. re Dr.E.Ivimy Puddy. Sg1/E24.10.34 Referring to Sg3/E15.10.34 I have not heard anything from you and am quite in the dark as to what to say. Please let me know what is happening.… | ||
| scan0114 | Letter from The Cloudsley Engineering Co. Ltd. arranging a telephone call regarding the Hayes Selfselector Transmission. | ||
| View original record | x2061 THE CLOUDSLEY ENGINEERING CO. LTD. 5 CHANCERY LANE - LONDON W C 2 Directors: Captain J.L. Cloudsley, M.I. Mech. E. G.W. Morrison. H. Tansley Witt, F.C.A. F.B. Halford. F.R. Ae. S. E.R.W.… | ||
| scan0115 | Letter to Cloudsley Engineering regarding a Hayes gearbox and potential future developments. | ||
| View original record | +2061 Exptl. Dept. Hs/Rm.17/KW. 7th November, 1934. The Cloudsley Engineering Co.Ltd., 5, Chancery Lane, LONDON, W.C.2. For the attention of Mr. Cloudsley. Dear Sirs, Thank you for your letter of the… | ||
| scan0116 | Secret memo discussing arrangements for vehicle testing, including a 20/25 model, a Spectre, and a Vauxhall, to evaluate suspension characteristics. | ||
| View original record | SECRET. x2061 HS To H. from Sg. Copy to Wor.C. Hs.RV.HDV.Brv Wilson Type Gearbox. Sg9/E7.3.35 Thanks for E.2/HP.6.3.35. You may have heard that we have fixed up for the car in question and the 20/25… | ||
| scan0117 | Requesting power loss tests on a Wilson Gearbox removed from vehicle 18-G-IV. | ||
| View original record | X 1122 To RHC. c. to Hs/W.Bell. Hs/Gry.6/KW.10.4.35. Wilson Gearbox. Now that this box has been removed from 18-G-IV, will you please hand same to W. Bell to determine the power losses at various… | ||
| scan0118 | French language article discussing Cotal electro-mechanical, Wilson, and Maybach gearboxes with diagrams. | ||
| View original record | LA VIE AUTOMOBILE 151 Fig. 6. — La boîte électro-mécanique Cotal. Troisième vitesse : on excite les électros A et C, on obtient la prise directe dans le premier train, le second est en… | ||
| scan0119 | Letter from The S.U. Company acknowledging the return of a Balor Gear box in good condition. | ||
| View original record | X1122 STATION: ADDERLEY PARK, L.M.&S.Rly S.U. CARBURETTER FLEXIBLE SILENT THE S.U. COMPANY. PROPRIETORS: MORRIS INDUSTRIES LTD THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS LTD TELEPHONES: EAST 1662… | ||
| scan0120 | Letter to Mr. Flower of The S.U. Company regarding the Balor Gear Box, declining its current use but expressing interest in future developments. | ||
| View original record | Copy to Rm. [REDACTED] 21153 E/TSN.2/MN. 22nd. May, 1935. A.Flower, Esq., c/o The S.U.Company, East Works, Bordesley Green Road, Adderley Park, Birmingham,8. Mr. Flower, Dear Sir, In reply to your… | ||
| scan0121 | Competitor's gearbox and proposing a pump-powered system for remote control gear changes. | ||
| View original record | X1153 HS To E. from Sg. Copy to Hs. Ex. re Remote Control (Change Speed) Sg12/H18.5.36 Last Friday C., Cx. and I tried a Hudson with the above. We came to the conclusion that as fitted on that car it… | ||
| scan0122 | Letter from The British Thomson-Houston Company Ltd regarding a report on a gear after laboratory examination. | ||
| View original record | F.J. HARDY 11 53 THE BRITISH THOMSON-HOUSTON COMPANY LTD ELECTRICAL ENGINEERS AND MANUFACTURERS. SUBSIDIARY OF ASSOCIATED ELECTRICAL INDUSTRIES, LIMITED. REGISTERED OFFICE: CROWN HOUSE, ALDWYCH,… | ||
| scan0123 | Specifications for Ford Steel, including its supplier, composition, and heat treatment process for gears. | ||
| View original record | 1153 FORD STEEL. 18.12.36. Can be obtained from Samuel Fox, which is suitable for gears that are to be cyanided. Mr. Bolsover is the Chief Chemist. Grain structure to be held within a range of 6 to 8,… | ||
| scan0124 | Visit to Hughes Johnson to investigate the high cost of stampings for gearbox levers. | ||
| View original record | 1153 E.. from Rm/Gry. c. to Da. c. to By. c. to Hdy. c. to Ev. Rm/Gry6/R.14.1.37. Visit to Hughes Johnson re cost of Stampings. Rm. and the writer visited Hughes Johnson to discover why the small… | ||
| scan0125 | Cost savings and manufacturing modifications for a reverse drag link on the Bentley servo. | ||
| View original record | -2- Rm/Gry6/R.14.1.37. By ordering 500 sets instead of 200 we should save 3d in a shilling. While we were there a point came up in connection with the reverse drag link GB.1802/3 on the Bentley servo.… | ||
| scan0126 | Requesting the standardization of thrust races in test bed gear box units. | ||
| View original record | J 1153. To HPS. from Rm/Swdl. Rm/Swdl.9/AP.13.1.37. test Bed Units. We are continually having to change over the 1st. motion shafts in our test bed gear boxes owing to the thrust races in various… | ||
| scan0127 | Letter from the Experimental Department to Mr. A. Alltree about his synchromesh gear change method. | ||
| View original record | 1/S-3 Experimental Department 10th February 1937. Rm/Gry.8/AP. Mr. A. Alltree. Dear Sir, We are interested in your method of operating synchromesh gear changes, described in the "Motor" of February… | ||
| scan0128 | Letter to the editor of 'The Motor' magazine, requesting to forward an enclosed letter to a Mr. A. Alltree regarding his gearbox. | ||
| View original record | 1153 Experimental Department 10th February 1937. Rm/Gry.7/AP. The Editor, The Motor, Temple Press Ltd., 5,7,9,11,13,15,17 Rosebery Ave., LONDON E.C.1. Dear Sir, We should be glad if you would kindly… | ||
| scan0129 | Letter from an external party responding to an enquiry about a preselector gear control mechanism and its potential applications. | ||
| View original record | [Handwritten top center: 1153. B.] [Handwritten top left: GRY.] RYDAL DENE, PILLING LANE, PREESALL, NR FLEETWOOD. 12 FEB 1937. Experimental Department, Messrs Rolls-Royce Ltd, D E R B Y. Your ref:… | ||
| scan0130 | Article from 'The Motor' magazine about a novel semi-automatic clutch-pedal gear change mechanism with synchromesh. | ||
| View original record | The Motor February 9, 1937. 55 Novel Clutch-pedal Gear Change Ingenious Adaptation of Synchromesh Which Affords Marked Ease of Control and Semi-automatic Upward Changing During Acceleration NOT long… | ||
| scan0131 | Article discussing the Pneugrippa process for improving tyre grip and mileage. | ||
| View original record | The Motor 56 February 9, 1937. Pneugrippa-ing New Tyres Better Road Grip and Increased Tyre Mileage Amongst Important Claims Made for this Process ALTHOUGH many people seem to think that the… | ||
| scan0132 | Description of a novel clutch-pedal gear change mechanism. | ||
| View original record | "Novel Clutch-pedal Gear Change." As the article in THE MOTOR may not be very clear on one or two points, and the sketches are somewhat crowded, the following further description may be helpful in… | ||
| scan0133 | Description of the gear disengagement, engagement, and the self-change spring mechanism. | ||
| View original record | -2- Disengaging the Gears. It is of first importance that the disengaging of the gears, and putting them into correct neutral position, should be effected by positive means. This is obtained by the… | ||
| scan0134 | With diagrams describing the cam and peg mechanism for a gearbox. | ||
| View original record | Locking Wall of Cam -3- Top 2nd Sp. N Cam in Theory Peg Locking Wall of Cam Top Sp. 2nd Sp. N Cam in Practice Peg The Cam and Peg Mechanism. Although the cam and peg provide a simple reliable… | ||
| scan0135 | Description of gear lock mechanisms and an automatic gear selection feature for quick getaways. | ||
| View original record | -4- Gear Locks. Although the cam and peg form a strong gear lock, in the manner described, a further simple lock is provided that allows only one shift fork to be moved and keeps the other (or others)… | ||
| scan0136 | Page detailing the operation and benefits of a preselector gearbox and potential future developments. | ||
| View original record | -5- and this action also causes the selector pawl to turn the selector shaft to select 1st gear, the latter being engaged by the return movement of the pedal. Depressing and releasing the pedal… | ||
| scan0137 | Comparison between Synchromesh and Epicyclic gears. | ||
| View original record | -6- Synchromesh Gear V Epicyclic Gear. As the Editor of THE MOTOR recently pointed out, a synchromesh gear is admirably suited to the preselector form of control - the synchronisers and the… | ||
| scan0138 | Technical drawing and description of a 2-speed unit preselector self-changing control for synchro-mesh gears. | ||
| View original record | 2-SP. UNIT [Drawing Labels] Gear Striking Lever Stop Shift Fork 3rd N 2nd Selector Shaft Peg Cam Coupling Pawls (Shaded) Self-change Shaft PRESELECTOR self-changing CONTROL - for Synchro-mesh Gears.… | ||
| scan0139 | Follow-up letter discussing patent specifications for a preselector semi-automatic gearbox and an alternative clutch mechanism. | ||
| View original record | B. RYDAL DENE. PILLING LANE. PREESALL. NR FLEETWOOD. 16 FEB 1937. Experimental Department, Messrs Rolls-Royce Ltd, D E R B Y. Your ref: Rm/Gry.8/AP. Dear Sirs, Further to my letter of the 12th inst. I… | ||
| scan0140 | Letter from a consulting engineer regarding US and British patents for a gear shift lock. | ||
| View original record | W.W. CONSTANTINE. CONSULTING ENGINEER. 111, GROSVENOR ROAD, LONDON, S.W.1. ENG. TEL: VICTORIA 3537-3538. 12th. February. 1937. (Dict. 11th). L. H. Grylls, Esq., Messrs. Rolls-Royce Limited. Derby.… | ||
| scan0141 | Letter from W.W. Constantine to L.H. Grylls regarding a gear shift lock developed by Fiat. | ||
| View original record | -2- L. H. Grylls, Esq. cont., 12th. February. 1937. Personally, I think one of the best gear shift locks that I have come across is the one developed by Fiat many years ago and covered by their now… | ||
| scan0142 | Patent diagram sheet for a gear shift lock mechanism. | ||
| View original record | Feb. 14, 1933. A. E. LEACH 1,897,851 GEAR SHIFT LOCK Filed May 12, 1932 4 Sheets-Sheet 1 Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 5a Inventor Albert E. Leach By Blackmore, Spencer & Flehr Attorneys | ||
| scan0143 | Patent drawing for a gear shift lock mechanism. | ||
| View original record | Feb. 14, 1933. A. E. LEACH 1,897,851 GEAR SHIFT LOCK Filed May 12, 1932 4 Sheets-Sheet 2 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Inventor Albert E. Leach By Blackmore, Spencer & Fleck Attorneys 17 19 21'… | ||
| scan0144 | Patent document for a Gear Shift Lock mechanism. | ||
| View original record | Feb. 14, 1933. A. E. LEACH 1,897,851 GEAR SHIFT LOCK Filed May 12, 1932 4 Sheets-Sheet 3 Fig. 14 153 151 167 159 165 161 157 163 Fig. 15 153 155 163 161 169 167 159 157 165 Fig. 11 77 13 29' 134 25"… | ||
| scan0145 | Patent diagram illustrating a gear shift lock mechanism. | ||
| View original record | Feb. 14, 1933. A. E. LEACH 1,897,851 GEAR SHIFT LOCK Filed May 12, 1932 4 Sheets-Sheet 4 Fig. 16 Fig. 17 Fig. 18 Fig. 19 Fig. 20 Inventor Albert E. Leach Blackmore, Spencer & Flick Attorneys | ||
| scan0146 | United States Patent for a gear shift lock mechanism, assigned to General Motors. | ||
| View original record | Patented Feb. 14, 1933 1,897,851 UNITED STATES PATENT OFFICE ALBERT E. LEACH, OF ROYAL OAK, MICHIGAN, ASSIGNOR TO GENERAL MOTORS CORPORATION, OF DETROIT, MICHIGAN, A CORPORATION OF DELAWARE GEAR SHIFT… | ||
| scan0147 | Page from a patent application describing a change-speed transmission mechanism. | ||
| View original record | 2 1,897,851 29 is moved toward the left it carries plate 41 to the left and engages its notch with the pin 55 at the left end of lever 47. When, thereafter, lever 29 is rocked in a longitudi- 5 nal… | ||
| scan0148 | Detailed description of a gear selection and locking mechanism, likely from a patent application. | ||
| View original record | 1,897,851 3 has a wall 117. In this wall is an opening having located therein a ball 119 of a diameter substantially equal to the thickness of the wall. At the opposite end of rod 21' 5 are grooves… | ||
| scan0149 | Detailed description of a change speed transmission mechanism. | ||
| View original record | 4 1,897,851 shift rod 151. There may be three notches, a middle one for the neutral position of the rod, and end notches for third speed and second speed positions. 5 The shift lever 157 enters an… | ||
| scan0150 | Patent document detailing the claims and operation of a change speed transmission system. | ||
| View original record | 1,897,851 5 the cam plate together. When the counter-sunk opening 325 and the hole 313 register with the plunger 343, the plunger is forced downwardly by its spring. The ball again is received into… | ||
| scan0151 | Patent specification for improvements to a control mechanism with reference to gear boxes. | ||
| View original record | PATENT SPECIFICATION Application Date: March 21, 1931. No. 8772/31. 372,040 Complete Left: Jan. 18, 1932. Complete Accepted: May 5, 1932. PROVISIONAL SPECIFICATION. Improvements relating to Control… | ||
| scan0152 | Patent specification document for improvements to gearbox control mechanisms. | ||
| View original record | the locking member swings on its pivot and the forward tooth thereon engages with the forward notch on the guide rod. As the spring ball now presses upwards on the locking member to the rear of its… | ||
| scan0153 | Patent application describing a control mechanism for gearboxes with seven distinct claims. | ||
| View original record | 4 372,040 which are slidably mounted in the gear box casing but are incapable of rotating. In these figures, the locking member, 6, is arranged in a slot, 31, in the guide rod, 3, and is pivotably… | ||
| scan0154 | Patent specification for a preselector self-selecting gear control mechanism. | ||
| View original record | PATENT SPECIFICATION This specification relates to developments in preselector control, in which the gears are self-selected - from neutral to top - to facilitate getaways. Improvements in and… | ||
| scan0155 | Patent specification detailing improvements in and relating to change-speed gear control. | ||
| View original record | 2 438,068 3 out having to use the selector control lever although the latter is moving in step with the different changes indicating the gear in use and being always in a position to 5 be restored to… | ||
| scan0156 | Patent specification for a change-speed gear control mechanism. | ||
| View original record | 4 438,068 sary for the downward changes, means are provided to make the pawl operative or inoperative at will. In one arrangement this is effected by 5 mounting a cam 22 on the shaft 2 and connecting… | ||
| scan0157 | Page of claims from a patent specification regarding a change-speed gear control system. | ||
| View original record | 6 438,068 as desired. 8. In a change-speed gear control, as in Claims 5 6 and 7, in which a cam member is employed to make a pawl or its equivalent operative or inoperative, controlling the said cam… | ||
| scan0158 | Complete specification drawing sheet detailing various mechanical components and assemblies. | ||
| View original record | 438,068 COMPLETE SPECIFICATION 4 SHEETS SHEET 1 SHEET 2 [This Drawing is a reproduction of the original on a reduced scale.] Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig.… | ||
| scan0159 | Complete specification document sheet showing various mechanical linkage and governor mechanisms. | ||
| View original record | 438,068 COMPLETE SPECIFICATION SHEET 3 4 SHEETS SHEET 4 [This Drawing is a reproduction of the Original on a reduced scale.] Fig. 12. 1. 1a 21 20 20a 22 36 3a 3 2c 2 Fig. 13. 1. 1a 21a 21b 22 36 3a 3c… | ||
| scan0160 | Patent specification for improvements in change-speed gearing, specifically for preselector semi-automatic control for synchromesh gears. | ||
| View original record | PATENT SPECIFICATION Application Date: Oct. 21, 1932. No. 29,433/32. 402,924 This specification relates to methods of preselector semi-automatic control for synchromesh gears. PROVISIONAL… | ||
| scan0161 | Provisional specification detailing improvements to change-speed gearing mechanisms. | ||
| View original record | 2 402,924 but to so engage its slot at one time the remaining link bars resting on the peri- phery of the shaft. A neutral position is provided in which no link can engage 5 its slot. The disengaging… | ||
| scan0162 | Specification for an invention relating to improvements in change-speed gearing mechanisms. | ||
| View original record | 4 402,924 the shift lever of the gear pre-selected by the selector shaft the return movement of the camshaft effecting engagement of the gear. Dated the 1st day of November, 1932. A. ALLTREE. COMPLETE… | ||
| scan0163 | Patent specification document detailing the claims and mechanisms for a change-speed gearing system. | ||
| View original record | 6 402,924 other arrangements for gear change may be used. The pivot pin 7c for the link bars may be supported at its opposite ends and also by an intermediate part 7k. 7h is a cottar pin for holding… | ||
| scan0164 | Complete specification drawing with six figures illustrating a mechanical linkage and cam system. | ||
| View original record | 402,924 COMPLETE SPECIFICATION SHEET 1 5 SHEETS SHEET 2 [This Drawing is a reproduction of the Original on a reduced scale.] Fig.1 Fig.2 Fig.3 Fig.4 Fig.5 Fig.6 Malby & Sons, Photo-Litho. 1, 2, 2a, 3,… | ||
| scan0165 | Complete specification drawing of engine components, possibly related to a valve operating mechanism and crankshaft. | ||
| View original record | 402,924 COMPLETE SPECIFICATION SHEET 3 5 SHEETS SHEET 4 [This Drawing is a reproduction of the Original on a reduced scale.] Fig.7 Fig.8 Fig.9 Fig.10 Fig.11 Malby & Sons, Photo-Litho. Component… | ||
| scan0166 | Complete specification drawings of various mechanical cam and lever arrangements. | ||
| View original record | 402.924 COMPLETE SPECIFICATION 5 SHEETS SHEET 5 [This Drawing is a reproduction of the Original on a reduced scale.] Fig.12 Fig.13 Fig.14 Fig.15 Fig.16 1 2 2b 3 3b 3d 3e 3f 4 5 5b 7 7a 7c 8 8b 9 34… | ||
| scan0167 | Letter from the Experimental Department regarding a patent specification for a gear shaft lock. | ||
| View original record | (Experimental Dept.) 1153 Rm/Gry3/R. 17th February, 1937. W.W. Constantine, Esq., 111, Grosvenor Road, LONDON. S.W. 1. Dear Mr. Constantine, Thank you for your letter of the 12th enclosing patent… | ||
| scan0168 | Specifications for a universal gearbox for Bentley III, Phantom, and Wraith models. | ||
| View original record | PY: c.c. Mr. Ds. Rm. HPS. GRL 1153 E/HDY.1/HP.16.7.37. Bentley III, Phantom and Wraith. Universal Gearbox. We send herewith N.Sch.5193, 5199, 5200, and 5201, showing the above. N.Sch.5193 shows the… | ||
| scan0169 | New gearbox design, including its actuation, shaft, and casing, with comparisons to the Phantom III and Wraith models. | ||
| View original record | (2) found to be very desirable, and we shall be sending a further design for the spring. N.Sch.5199 shows the over-drive, direct, and reverse actuation. We have not followed the type of actuation in… | ||
| scan0170 | Note detailing modifications to the drive shaft, speedometer gears, and rear rubber mountings. | ||
| View original record | (3) drive shaft to avoid a projection above the top face of the box. We shall be sending particulars of the speedometer drive gears later. They cannot be the same as any we now have as it is desired… | ||
| scan0171 | The Spigot Bearing for the Universal Gear Box and a related quotation from Hoffmanns. | ||
| View original record | Car Dept. c. Rm. c. Gen. 1153 DA.11/C.26.8.37. GRY UNIVERSAL GEAR BOX. SPIGOT BEARING. Herewith is N.Sch.5205 shewing the Roller Spigot Bearing for the above box. We have asked Hoffmann for… | ||
| scan0172 | Blueprint for a spigot bearing for a universal gearbox, for Bentley III, Phantom, and Wraith models. | ||
| View original record | N5915205 ROLLS-ROYCE, LTD PRINT ROOM AUG 27 1937 DERBY. .100 ±75 WRW 19-8-37 SCALE 2/1 1" DIA 22- 1/4" ROLLERS BEARING UNIT TO HOFFMANN DRG. 43-661-7 SPIGOT BEARING UNIVERSAL GEARBOX BENTLEY III PHAN… | ||
| scan0173 | Change from chromium plated and engraved speed gates to dull nickel plated gates without lettering, and the addition of a leather cover. | ||
| View original record | By. from Rm/Gry. c. RHC. 110-3 Rm/Gry.17/AP.27.8.37 CHANGE SPEED GATE - ALL CHASSIS. RHC. has asked whether we need any longer chromium plated change speed gates and engrave the gear positions on… | ||
| scan0174 | Springs in the universal gearbox, comparing Buick and Vauxhall synchromesh systems. | ||
| View original record | To Da. from Da/Hdy. c. By. [crossed out] c. Rm. [Handwritten: GRY] [Handwritten: 115 3] Da/Hdy6/N.2.9.37. Re: Universal Gearbox. With reference to the Buick type synchromesh, it occurs to us that… | ||
| scan0175 | Continued note on reducing stress in springs by tapering them to increase flexibility. | ||
| View original record | -2- Da/Hdy6/N.2.9.37 Cont'd. If a reduction of stress is thought to be necessary to guard against breakage, we can, if necessary, increase the flexibility by 50% by tapering the spring to give a more… | ||
| scan0176 | Changes to the change speed gate for all chassis, including plating and model adoption. | ||
| View original record | [Handwritten]: 1153, [Handwritten]: 3287, [Strikethrough]By.[/Strikethrough] c. Rm/Gry. c. [Strikethrough]EY/TWD.[/Strikethrough] c. LA/Skn. c. Mr.Norman. RHC/JMW.3/JWA.3.9.37. CHANGE SPEED GATE - ALL… | ||
| scan0177 | On reverting to bronze cones for gearboxes after cast iron failures, and continuing to test alternative materials. | ||
| View original record | HPS. from Rm/Gry. c.c Rm/Wym: Rm/Gry7/R.8.9.37. 115/3 In view of the failure of cast iron cones on 26.G.VI we want to revert to bronze cones on all boxes, and also make sure that they are fitted on to… | ||
| scan0178 | The discontinuation of chromium plating and engraving on change speed gates for specific chassis. | ||
| View original record | c. Rm/Gry. c. BY/TWD. c. LA/Skn. c. RHC/Mr. Norman. c. RHC/TVT. RHC/JMW.1/EMG.16.9.37. CHANGE SPEED GATE - ALL CHASSIS. With further reference to the following memo's.- ? - Rm/Gry.17/AP.27.8.37. and… | ||
| scan0179 | Modifications to the universal gearbox pattern to accommodate a larger universal joint. | ||
| View original record | G. Dept. C. Rm. C. MR 11/53 ? DA.18/G.16.9.37. UNIVERSAL GEAR BOX. The adoption of the fully isolated gear change lever on this box, which is foreshadowed in Rm/Gry.1/R.11.9.37. will necessitate the… | ||
| scan0180 | Modifications to a 2nd speed Buick type coupling for a Universal Gearbox being tested on a Phantom III. | ||
| View original record | C. Depts. E. Depts. F. Depts. D. Depts. C. Rm. DA.1/G.29.9.37. 1153? UNIVERSAL GEARBOX. Herewith is FD.23 shewing a modification to the 2nd speed Buick type coupling as now being tried on a Phantom… | ||
| scan0181 | Request to fit a gearbox with 3 plates and a non-positive synchromesh to vehicle 22.G.V. | ||
| View original record | HPS. from Rm/Gry. 115'3 Rm/Gry.12/AP.30.9.37 We understand the gearbox with 3 plates and a non-positive synchromesh is now ready. Will you please fit this to 22.G.V. Rm/Gry. | ||
| scan0182 | Request to obtain two new departure Radax type bearings from Delco-Remy & Hyatt. | ||
| View original record | 110'3 Roy. from Rm. Rm3/R.11.10.37. Will you please obtain from Delco-Remy & Hyatt, 111, Grosvenor Road, S.W.l. two new departure Radax type bearings No.30307 of dimensions 35 x 72 x 17. Rm. | ||
| scan0183 | Order for New Departure Radax Type Bearings which are no longer required. | ||
| View original record | Hdy Please return GRY 1153? Rm/GRY. GRY Roy/Dn3/ME.18.10.37. RE: NEW DEPARTURE RADAX TYPE BEARINGS - NO.30307. We duly ordered two of the above bearings from Messrs. Delco,-Remy & Hyatt, and attach… | ||
| scan0184 | Letter to Messrs. Delco-Remy & Hyatt Ltd. regarding the cancellation of an order for No.30307 bearings. | ||
| View original record | C O P Y. Roy/Dn5/ME. 18th October 1937. Messrs. Delco-Remy & Hyatt Ltd., 111, Grosvenor Road, LONDON. S.W.1. Dear Sirs, We thank you for your letter of the 15th instant, reference WRC/RS, and note… | ||
| scan0185 | Quotation from Delco-Remy & Hyatt Ltd. for New Departure Radax type bearings. | ||
| View original record | COPY Messrs. Delco-Remy & Hyatt Ltd., 111, Grosvenor Road, LONDON. S.W.1. WAC/RS. 15th October 1937. Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. Dear Sirs, Your Order No.50020. We acknowledge… | ||
| scan0186 | Letter proposing an alternative design for a semi-automatic synchromesh gear preselector control. | ||
| View original record | A. ALLTREE. Motor Fittings and Accessories FJH 1153 RYDAL DENE, PILLING LANE, PREESALL, NR FLEETWOOD. 26th October 1937. Experimental Department, Messrs Rolls-Royce Ltd, DERBY. Your ref: Rm/Gry.8/AP.… | ||
| scan0187 | Semi-automatic gear control mechanism. | ||
| View original record | SEMI-AUTOMATIC GEAR CONTROL. Lower Floor. No Obstructive Gear Lever. Easy Changing. This mechanism is a simple robust construction, self-contained with the gearing, that provides a preselector form of… | ||
| scan0188 | Description of the gear change mechanism, focusing on clutch operation, cam, peg, gear lock, and coupling pawls. | ||
| View original record | -2- When a gear has been preselected the driver depresses the clutch pedal and the first half of this movement disengages the clutch and the second half disengages any gear then engaged and prepares… | ||
| scan0189 | Description of the self-selection gear mechanism for easier and safer acceleration during a getaway. | ||
| View original record | -3- Self-selection of the Gears during a Getaway. By means of a small addition to the mechanism a driver can accelerate through the gears simply by depressing and releasing the pedal to engage… | ||
| scan0190 | Blueprint detailing the mechanism of a preselector self-changing gear control system for synchromesh gears. | ||
| View original record | PRESELECTOR SELF-CHANGING CONTROL FOR SYNCHROMESH GEARS. Type FP. Gears Self-selected - from Neutral to Top - during getaways. Reduced height of gearbox and no gear lever give lower floor and more… | ||
| scan0191 | Blueprint for a modification to the Universal Gearbox 2nd speed coupling. | ||
| View original record | G. Dept. [crossed out] P. Dept. [crossed out] D. Dept. [crossed out] L. Dept. [crossed out] C. Rm. Cr MBG/GMR. [Handwritten]: 1153 DA.1/G.1.11.37. UNIVERSAL GEARBOX. SECTION 6050. N.SCHS. 5193 and… | ||
| scan0192 | Instruction to incorporate a 2nd speed Buick type coupling modification into universal gearboxes. | ||
| View original record | To HPS. from Rm/FJH. Rm/FJH.4/AP.2.11.37. 1153 UNIVERSAL GEARBOX. Will you please incorporate in all the above gearboxes the modification to 2nd. speed Buick type coupling GCD.18o which is now being… | ||
| scan0193 | Patent specification for improvements in change speed gears. | ||
| View original record | RM/GRY + Fearbox General 1153 PATENT SPECIFICATION 449,540 Convention Date (Germany): Dec. 27, 1933. Application Date (in United Kingdom): Dec. 27, 1934. No. 37057/34. Complete Specification Accepted:… | ||
| scan0194 | Detailed description of a change-over coupling mechanism and synchronizing brake for a multi-speed gearbox. | ||
| View original record | 2 wheel e₁ being mounted so as to be capable of turning loosely between the shafts a and b with respect to these shafts and the toothed wheel f₁ being mounted loosely on the Cardan shaft b while the… | ||
| scan0195 | Patent specification detailing claims for a change-speed gearing system for motor vehicles. | ||
| View original record | 449,540 4 for facilitating the gear change might be employed. Instead of being operated by a common gear lever k the speeds could also be operated by different gear levers or by hydraulic, pneumatic,… | ||
| scan0196 | Complete specification drawing of a mechanical assembly with multiple figures. | ||
| View original record | 449,540 COMPLETE SPECIFICATION 1 SHEET [This Drawing is a reproduction of the Original on a reduced scale.] Malby & Sons, Photo-Lith. Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Diagram Labels: A, B, C, I, II,… | ||
| scan0197 | Cone assembly tests for a universal gearbox synchro-mesh. | ||
| View original record | GRY To Rm. from HPS/WB. c. to By. c. to Hdy. 1153 HPS/WB.1/CB.9.11.37. UNIVERSAL GEAR BOX SYNCHRO-MESH. A.H. CONE ASSEMBLY TESTS. B.254 Dummy Gear. B.253 Cone - Test Models. Two cones with diametral… | ||
| scan0198 | The assembly methods and testing for cones and gears, comparing pressure and shrinkage processes. | ||
| View original record | -2- cones and gears, and the tests repeated. In spite of the leading chamfer, the gears still tended to shear the surface metal of the cone bores during the assembly operation (the gear surfaces,… | ||
| scan0199 | Test report for a universal gearbox synchro-mesh cone, including a diagram of surface wear and performance data tables. | ||
| View original record | UNIVERSAL GEAR BOX SYNCHRO-MESH CONE TESTS B 254 DRIVING GEAR TEST MODELS B 253 CONES. DIAGRAM SHOWING WHERE CONE SURFACES HAD PICKED UP TABLE I CONE INDEX Nº | DIAMETRAL INTERFERENCE | ASSEMBLY LOAD… | ||
| scan0200 | Bush seizure failure in a Bentley's overdrive gearbox, attributing it to a hardened steel bush and planning to revert to a bronze one. | ||
| View original record | 1153 also 200a 228 Sg. from Rm. Hs. c. Hy. c. Ds. S. MX. Rm4/H.S.1.38. OVERDRIVE GEARBOX ON THE BENTLEY. You will see from the attached Daily Report that we have had a failure on the overdrive… | ||
| scan0201 | Advising on the initial running of Over-Drive Gearbox No.15.HS with Hi-press oil to avoid seizure. | ||
| View original record | 1153 To LA. from Rm/Gry. Rm/Gry.7/AP.4.1.38 We have sent over to you Over-Drive Gearbox No.15.HS., As this has been sitting on the floor for several months since it was last assembled, we think it… | ||
| scan0202 | Modification to the revised universal gearbox for B.111, B.50, and Wraith models. | ||
| View original record | B.111, B.50 and WRAITH. REVISED UNIVERSAL GEAR BOX. Herewith is FD.96 which shews a modification to the width of the 1st speed and reverse gear, with slight resulting modifications to the box, which… | ||
| scan0203 | Recording the experiences and results of testing steel versus bronze bushes in synchromesh gearboxes. | ||
| View original record | 1183 Sg. from Rm/Gry. c. Hs. c. By. c. Hdy. c. RHC. c. Da. Mx. Rm/Gry.2/AP.19.1.38. GEARBOX BUSHES. The object of this memo is to record the experiences we have had with steel bushes and thrust faces… | ||
| scan0204 | Issue with free pinions in gearboxes for the Wraith model. | ||
| View original record | -2- Rm/Gry.2/AP.19.1.38 for use in the free pinions of gearboxes. We are fortunate in discovering this before Wraith owners can experience similar trouble. Rm/Gry. | ||
| scan0205 | Letter to Kennings Ltd. requesting a trial run on a 16.HP. Riley with an over-drive gearbox. | ||
| View original record | 1153. February 2nd.1938 Rm/Gry.7/AP. Messrs. Kennings Ltd., Motor Engineers, Queen Street, DERBY. Dear Sirs, For the attention of the Sales Manager. The other day we rang you up to know whether you… | ||
| scan0206 | Secret memo discussing experimental mileage, discovery of troubles, and the fitting of steel bushes. | ||
| View original record | S/W SECRET. To Rm. from Sg. Experimental Mileage and the Discovery of Troubles. Referring to Rm7/R24.1.38 I discussed this matter with Hs. and, whilst we agree the view expressed in the last… | ||
| scan0207 | Short run of a 16 HP Riley to evaluate its overdrive gearbox. | ||
| View original record | To By. from Rm/Gry. c. Da. c. Hdy. 115/3 Rm/Gry.1/MH.11.2.38. OVERDRIVE GEARBOXES. We were able to have a short run on a 16 H.P. Riley. This is a 30 cwt. car with a four cylinder 2½ litre engine of… | ||
| scan0208 | Auto-Static brake as a preferable arrangement to a scotch in the brake system. | ||
| View original record | 1153? By. from Rm/Gry. c. Da. c. Da/Hdy. Rm/Gry4/R.14.2.38. With regard to Sg's memo about the Studebaker hill holder, and your reply By2/G.10.2.38, here-with leaflet describing an Auto-Static brake,… | ||
| scan0209 | Letter from British Timken Limited offering a trial set of ball races for gear boxes. | ||
| View original record | Gearbox general 1153. BRITISH TIMKEN LIMITED MANUFACTURERS of TAPERED ROLLER BEARINGS ALSO BALL AND PARALLEL ROLLER BEARINGS TRADE MARK: TIMKEN LONDON OFFICE: 10, MAYFAIR PLACE, LONDON, W.1.… | ||
| scan0210 | Price list and specification sheet for Timken single row cylindrical roller bearings, medium series in inch and metric sizes. | ||
| View original record | [Page 1] SINGLE ROW. CYLINDRICAL ROLLER BEARINGS. MEDIUM SERIES—INCH. Timken Symbol | A | B | C | R | lbs. | kgs. | Code Word | PRICE £. s. d. | Hoffmann | R. & M. | S.K.F.… | ||
| scan0211 | Specification sheet for Deep Groove, Single Row Ball Bearings, divided into Light and Medium series with both Inch and Metric dimensions. | ||
| View original record | DEEP GROOVE, SINGLE ROW. BALL BEARINGS. LIGHT SERIES—INCH. Timken Symbol, Dimensions, A, B, C, R, Weight, lbs., kgs., Code Word, PRICE, £ s. d., Other Makers' Symbols, Hoffmann, R. & M., S.K.F. BRL… | ||
| scan0212 | Experimental fitting of a vacuum-operated servo for the change speed lever. | ||
| View original record | Rm/FJH. from Rm. Rm4/R.22.2.38. SERVO ASSISTANCE WITH CHANGE SPEED LEVER. It has been agreed that we should rig up a vacuum operated servo to assist change speed. This is already in production on the… | ||
| scan0213 | Letter regarding the return of noisy gearbox bearings for re-burnishing after running for 20,000 miles. | ||
| View original record | c. Roy 1153 Rm/Gry.12/R. 3rd March, 1938. F.O. Hickling, Esq., Messrs. Ransome & Marles Bearing Co.,Ltd., NEWARK-on-TRENT. Dear Hickling, I am sending you a set of gearbox bearings, which have run… | ||
| scan0214 | Accompanying blueprints for a Wraith gearbox casing, detailing its components and referencing related part drawings. | ||
| View original record | BY/NS. c. Rm. HS 1153. DA.1/G.17.3.38. B.111, B.50. WRAITH. H.H. Please receive herewith blueprints of FD.104 Gearbox Casing (2 Sheets). In addition to the main casing, which has been detailed and… | ||
| scan0215 | Modification to rubber buffers for a gearbox tie rod. | ||
| View original record | 11532 c. Rm. Aice DA.4/G.20.4.38. B.111 and B.50. WYMAN Please receive herewith drawing G.CD.624 Modification to Rubber Buffers for Gearbox Tie Rod. The above scheme shows the rubber blocks in shields… | ||
| scan0216 | The substitution of taper bolts and pins with parallel ones in gearboxes for all cars to simplify assembly and reduce cost. | ||
| View original record | To By & Rm....From RHC. 1153 RHC.1/MC.20.4.38. F.J. HARDY F.H. Your Comments please GEAR BOXES - ALL CARS Taper bolts and pins - In order to eliminate unsatisfactory hand reaming for taper bolts and… | ||
| scan0217 | Instruction to note modifications to rubber buffers for gearbox tie rods for B.III, B.50, and Wraith models. | ||
| View original record | To HPS. 1153 Rm/Wym.19/JH.22.4.38. Modification to Rubber Buffers for Gearbox Tie Rods B.III, B.50 and Wraith GCD.624 and GCD.611. Will you please note that above modifications to the engine tie rods,… | ||
| scan0218 | Unsatisfactory method of attaching cones to gears and proposing an alternative using parallel pins or bolts. | ||
| View original record | γ 1153. To RHC. from Rm/FJH. c. By. Rm/FJH.7/MH.27.4.38. GEAR BOXES - ALL CARS. Re your memo RHC.1/MC.20.4.38. A scheme was tried some time ago on Ph.II in which the cones were attached to the gears… | ||
| scan0219 | Requesting a modification to the gearbox selector mechanism. | ||
| View original record | 1153. To HPS. Rm/IMW.18/JH.4.5.38. GEARBOX. Will you please rig up a gate suitable to go on the selector pendulum lever instead of on the gear lever as arranged verbally between Rm/IMW. and T. Fisher.… | ||
| scan0220 | Production of new Bentley III and Bentley 50 Mk.II type gearboxes. | ||
| View original record | 1153 To Rm. from HPS. HPS.4/VS.9.6.38. BENTLEY III AND BENTLEY 50 GEARBOXES. You did speak about producing two new gearboxes which we should describe as being the Mk.II type. I am rather anxious to… | ||
| scan0221 | The unusual drag and noise issues observed in a 25 HP Vauxhall Gearbox. | ||
| View original record | 1153 also 1097 To By. c. to Da. c. to Hdy. Rm/Gry.10/JH.11.6.38. 25 H.P. Vauxhall Gearbox. In view of the unusual drag on the 3rd. motion shaft on the Pheonix gearbox which has unlooted synchro cones… | ||
| scan0222 | Blueprint G.CD.761 showing the layout of the change gear lever and driver's seat positions for Bentley 111 and 50 models. | ||
| View original record | DY/NS. 1153 c. Rm. DA.10/G.28.6.38. F DODD BENTLEY 111 and 50. CHANGE GEAR LEVER. Please receive herewith blueprints of G.CD.761 showing layout of the position of the change gear lever and driver's… | ||
| scan0223 | Cheaper gearbox dipstick and requesting a cost estimate for a modified version. | ||
| View original record | 110-3 also 1260. To RHC. from Rm/Gry. c. to Hs. c. to By. c. to Hdy. Rm/Gry.11/JH.18.8.38. GEARBOX DIPSTICKS. With regard to RHC/SB.1/MC.16.8.38. recommending a cheaper dipstick. We criticise the… | ||
| scan0224 | Modifications for the Bentley 111, 50 and 60 gearbox. | ||
| View original record | BY/NS c. Rm c. Da/Hdy c. Da/TWD c. Da/JD DA.3/G.18.8.38. 1153. FJH BENTLEY 111, 50 and 60. GEAR BOX. Herewith is PD.234 shewing modifications to the change gear mechanism to accommodate the greater… | ||
| scan0225 | Modifications to the Bentley 50 and Bentley 60 gearbox. | ||
| View original record | PV/HS 1153. c. Rm. DA.7/G.22.8.38. B.111 BENTLEY 50 and BENTLEY 60. GEAR BOX. Please receive PD.245 shewing the larger reverse shaft and gear to improve the radial control of the reverse wheel. You… | ||
| scan0226 | Experimental use of a Buick-type synchromesh for the Bentley 50 and 60 gearbox. | ||
| View original record | [Handwritten scribble] FTH [Text struck through] c. Rm. 1153. DA.9/G.22.8.38. B.111, BENTLEY 50 and 60. GEAR BOX. [Handwritten initials 'AH' crossing out 'GEAR BOX.'] Please receive PD.246 showing the… | ||
| scan0227 | Proposed eccentric fulcrum pin for providing adjustment for the selector levers for B.111, B.50 and B.60 gearboxes. | ||
| View original record | c. Rm. 1153 DA.8/G.22.8.38 GRY B.111, B.50 and B.60. GEAR BOX. FJH AH Please receive PD.235 shewing the proposed eccentric fulcrum pin for providing adjustment for the selector levers. An advance… | ||
| scan0228 | Modification to a gearbox, specifically the attachment of an oil scoop to the 2nd motion shaft. | ||
| View original record | BY/NS. 1153. c. Rm. c. RHC/SB. DA.2/G.23.8.38. B.111, B.50 and B.6. GEAR BOX. Herewith is PD.238 shewing modification of the attachment of the oil scoop to the 2nd motion shaft. The question of… | ||
| scan0229 | Setscrew tests for securing gearboxes directly to aluminium crankcases. | ||
| View original record | 1153 To RHC. from HPS/W.Bell. c. to Rm. o. to Da. o. to RHC/SB. HPS/WB.1/CB.24.8.38. SET SCREW TESTS. To prove whether or not gear boxes could be secured to their crankcases by means of setscrews… | ||
| scan0230 | Modified servo drive and alterations for B.111, B.50 and B.60 gear boxes. | ||
| View original record | RY/NS C. Rm. 1153 DA.7/G.25.8.38. AFM B.111, B.50 and B.60. GEAR BOX. Please receive herewith PD.222 shewing the modified servo drive to facilitate assembly and consequential alterations to gear box… | ||
| scan0231 | Comparison of gearbox backlash between a Rover and a Bentley 11. | ||
| View original record | Rm/Gry. -------- 1153 BY/Ald.1/G.25.8.38. BACKLASH IN GEARBOX. -------------------- We have worked out the backlash in the Rover gearbox from the detail drawings supplied, with the following results… | ||
| scan0232 | Scheme detailing modifications to a gearbox, including thicker washers and wider gears. | ||
| View original record | BY/HS c. Rm. 1153. DA.2/G.30.8.38. B.111 and B.50. GEARBOX. Please receive herewith PD.237 Thicker Locating Washers, Increased Bearing Area for S/M Discs and Wider Gears for increased tolerance in… | ||
| scan0233 | Necessary changes to the actuating gear leverages for the B.3, B.50, and B.60 gearboxes. | ||
| View original record | 1153 c. Rm. DA.5/G.5.9.38. GEARBOX. B.3, B.50 and B.60. ACTUATING GEAR. The leverages of the actuating gear as now instructed are lower than is desirable, due to the shortening of the gear lever and… | ||
| scan0234 | Modification to gearbox selector guide forks to prevent leakage. | ||
| View original record | 1153. [strikethrough text] c. Rm. ---------------- DA.2/G.17.10.38. B.111, B.50. GEARBOX. Herewith is PD.286 shewing a modification to selector guide forks to prevent leakage by means of a felt ring… | ||
| scan0235 | Modifications to the Selector jaw attachment on the Bentley 111 and 50 Gearbox to facilitate assembly. | ||
| View original record | 1153 BY/NS. c. Rm. DA.6/G.18.10.38. BENTLEY 111. and 50. GEARBOX. FJH Please receive herewith PD.283 Modifications to the Selector jaw attachment to facilitate assembly. The small distance piece under… | ||
| scan0236 | Request for details on a temporary scheme to fit aluminium bronze wearing pads to operating forks on B.111 and B.50 gearboxes. | ||
| View original record | 1153 BT/HS. c. Rm. DA.6/G.29.10.38. B.111 and B.50 GEAR BOX. Please receive PD.296 a temporary scheme for fitting aluminium bronze wearing pads to the operating forks, to overcome present wear.… | ||
| scan0237 | Letter requesting views on supplying a specific journal bearing, mentioning competition from American suppliers. | ||
| View original record | 628. 1153 Rm/Gry.5/MH. 2nd. November 1938. F.O.Hickling, Esq., Messrs. Ransome & Marles Bearing Co. Ltd., Newark, NOTTS. Dear Hickling, We are looking for a journal bearing size 40 x 90 x 23 to give… | ||
| scan0238 | Letter from Ransome & Marles Bearing Co. comparing their MJ.40-G bearing with a New Departure bearing. | ||
| View original record | BALL & ROLLER R&M BEARINGS [Handwritten]: 628-1153 London Office 17 VICTORIA STREET, WESTMINSTER, S.W.1. Telephone: ABBEY 3875 (2 LINES) Telegrams: OFISLUNDA, SOWEST, LONDON Contractors to H.M.… | ||
| scan0239 | Letter from Ransome & Marles Bearing Co. discussing bearings used on a Buick Viceroy Saloon and arranging a future meeting. | ||
| View original record | RANSOME & MARLES BEARING Co., Ltd. S. H. Grylls, Esq., Rolls-Royce Ltd., D E R B Y. - 2 - 4-11-38 would mention for your interest that on the Buick Viceroy Saloon bearings SP.1 and SP.2 are used, and… | ||
| scan0240 | Apology for misstating the number of balls in a bearing and a request for a quotation for 500 bearings. | ||
| View original record | 1153 Rm/Gry.2/MH. 5th. November 1938. F.O.Hickling, Esq., Messrs. Ransome & Marles Bearing Co. Ltd., Newark, NOTTS. Dear Hickling, Many thanks for your letter of the 4th. Nov-ember. I apologise for… | ||
| scan0241 | Letter to Hoffmann Manufacturing Co. Ltd. requesting a price for two types of bearings. | ||
| View original record | 1153 Rm/Gry.4/MH. 5th. November 1938. Messrs. The Hoffmann Manufacturing Co. Ltd., Chelmsford, ESSEX. Dear Sirs, Will you please let us know the relative price of an order for 500 of the two following… | ||
| scan0242 | Letter to Messrs. Delco-Remy & Hyatt Ltd. requesting a price quote for 500 New Departure bearings, No.43308. | ||
| View original record | 1153 Rm/Gry.3/MH. 5th. November 1938. Messrs. Delco-Remy & Hyatt Ltd., 111, Grosvenor Road, LONDON, S.W.1. Dear Sirs, Will you please let us know what price you would quote if we were to order 500 New… | ||
| scan0243 | Letter from Delco-Remy & Hyatt Ltd responding to an enquiry for New Departure Bearings No.43308. | ||
| View original record | 1153 ROLLER HYATT BEARINGS TELEGRAMS: DELREMYHYAT SOWEST LONDON AND NEW DEPARTURE BALL BEARINGS TELEPHONES: VICTORIA 6242 (7 LINES) DELCO - REMY & HYATT LTD 111 GROSVENOR ROAD LONDON S.W.1. YOUR REF.… | ||
| scan0244 | Quotation from Delco-Remy & Hyatt Ltd for 500 New Departure single row snap ring type ball bearings. | ||
| View original record | ROLLER BEARINGS DELCO-REMY & HYATT LTD 111 GROSVENOR ROAD LONDON, S.W.1 QUOTATION Your Ref. Rm/Gry.3/MH. Our Ref. WTB/RS. Date 7th November 1938. Messrs.Rolls-Royce Ltd., DERBY. 500 - New Departure… | ||
| scan0245 | Letter from The Hoffmann Manufacturing Co. Ltd. acknowledging an enquiry. | ||
| View original record | 1153? BRANCHES: LONDON, BIRMINGHAM, MANCHESTER, LEEDS, GLASGOW. AGENTS IN PRINCIPAL COUNTRIES THROUGHOUT THE WORLD. HOFFMANN Registered Trade Mark BALL AND ROLLER BEARINGS STEEL-BALLS AND ROLLERS THE… | ||
| scan0246 | Quotation letter from The Hoffmann Manufacturing Co. Ltd. for special and medium type ball bearings. | ||
| View original record | 1153 BRANCHES: LONDON, BIRMINGHAM, MANCHESTER, LEEDS, GLASGOW. AGENTS IN PRINCIPAL COUNTRIES THROUGHOUT THE WORLD. HOFFMANN Registered Trade Mark BALL AND ROLLER BEARINGS STEEL BALLS AND ROLLERS… | ||
| scan0247 | Page 2 of a letter from The Hoffmann Manufacturing Co., Ltd. | ||
| View original record | THE HOFFMANN MANUFACTURING CO., LTD. To MESSRS. ROLLS ROYCE LTD., Page 2 Date 9.11.38. We very much hope that you will be able to place this business with us indue course, and remain, Yours… | ||
| scan0248 | Letter from Ransome & Marles Bearing Co. Ltd. providing a quotation for 500 MJ.40.G type bearings. | ||
| View original record | 11/53 BALL & ROLLER R&M BEARINGS London Office 17, VICTORIA STREET, WESTMINSTER, S.W.1. Telephone: ABBEY 3875 (2 LINES) Telegrams: OFFIKRUNGA, SOWEST, LONDON Telegraphic Address: 'BEARINGS, NEWARK'… | ||
| scan0249 | Quotation from Ransome & Marles Bearing Co. Ltd. for Medium type Ball Journal Bearings. | ||
| View original record | QUOTATION RANSOME & MARLES BEARING Co. Ltd. Your Bearing No. Our Bearing No. Type of Bearing and Dimensions Quantity Required Price Each £ s. d. Delivery MJ.40.G. Medium type Ball Journal Bearing with… | ||
| scan0250 | Letter from Hoffmann Manufacturing Co. Ltd. to Rolls Royce Ltd. correcting a quotation for special bearings. | ||
| View original record | 1153 HOFFMANN Registered Trade Mark BRANCHES: LONDON, BIRMINGHAM, MANCHESTER, LEEDS, GLASGOW. AGENTS IN PRINCIPAL COUNTRIES THROUGHOUT THE WORLD. BALL-AND-ROLLER-BEARINGS STEEL-BALLS-AND-ROLLERS… | ||
| scan0251 | Requesting a covering order for three bearings ordered from Messrs. Ransome & Marles. | ||
| View original record | 1153 To Roy. from Rm/Gry. c. G/JWH. Rm/Gry.2/MH.22.11.38. We 'phoned Messrs. Ransome & Marles last night for three bearings, type MJ.40.G. Will you please send them the necessary covering order. O/N.… | ||
| scan0252 | Requesting an official covering order for special bearings that have already been received from Ransome & Marles. | ||
| View original record | 1153 To Roy. from Rm/Gry. c. G/JWH. Rm/Gry.12/MH.30.11.38. We have ordered by 'phone and received from Ransome & Marles, 3 special bearings DMJT.40.J with groove for snap ring. Will you please send… | ||
| scan0253 | Modifications to gearbox selector shafts for models B.111, B.50, and B.60. | ||
| View original record | BP/RS c. Rm. 1153 GRY DA.13/G.30.11.38. B.111, B.50 and B.60. GEARBOX. FJH Please receive herewith :- G.CD.1073 Modifications to Gearbox Selector Shafts, etc. The selector shafts have been lengthened… | ||
| scan0254 | Letter to Messrs. Delco-Remy & Hyatt Ltd. declining to order a special bearing as a cheaper alternative has been found. | ||
| View original record | 1153 Rm/Gry.2/MH. 1st. December 1938. Messrs. Delco-Remy & Hyatt Ltd., 111, Grosvenor Road, LONDON, S.W.1. Dear Sirs, Thank you for your letter WTB/RS. of the 30th. November. Contrary to our… | ||
| scan0255 | Modification to the B.111 and B.50 gearbox selector lever. | ||
| View original record | DV/NO. 1153 C. Rm. DA.3/G.7.12.38. B.111 and B.50. GEARBOX. Please receive herewith :- G.CD.1088 Modfn. to Selector Lever. The clamping bolt on the selector lever has been moved round to clear the… | ||
| scan0256 | Letter from Fischer Bearings Company regarding an alternative for pinion bearings. | ||
| View original record | FISCHER BEARINGS COMPANY LIMITED Chairman: G. Schäfer (German) Managing Director: J. Squires (British) Directors: [redacted] O. Schäfer (German) L.W. Moritz (British) UPPER VILLIERS STREET,… | ||
| scan0257 | Temporary modification scheme for B.V, B.50 and B.60 gearboxes. | ||
| View original record | 1153 DV/NC c. Rm. DA.2/G.14.12.38. B.V, B.50 and B.60. GEARBOX. Guy Please receive herewith :- G.CD.1102 Modifications to Gearbox Selector Shafts etc. This is a temporary scheme to prevent the… | ||
| scan0258 | Letter to Ransome & Marles Bearing Co. Ltd. requesting a further two DMJT.40 bearings for a Wraith gearbox. | ||
| View original record | 1153 Experimental Dept. Rm/FJH.2/MH. 15th. December 1938. Messrs. Ransome & Marles Bearing Co. Ltd., Newark-on-Trent. For the attention of F.O.Hickling, Esq. Dear Sirs, You recently supplied to us… | ||
| scan0259 | Order to be placed for two bearings with grooves for snap rings. | ||
| View original record | 1153 To Roy. from Rm/FJH. c. G/JWH. Rm/FJH.5/MH.15.12.38. Will you please send an order to Messrs. Ransome & Marles Bearing Co. Ltd., for 2 bearings DMJT.40 with grooves for snap rings. We have asked… | ||
| scan0260 | Letter from Ransome & Marles Bearing Co. Ltd. confirming an order for two DMJT.40.J. bearings. | ||
| View original record | 1153 BALL & ROLLER R&M BEARINGS London Office 17, VICTORIA STREET, WESTMINSTER, S. W. 1. Telephone: ABBEY 3875 (2 LINES) Telegrams: OFFIISLUNDA, SOWEST, LONDON Contractors to H.M. Admiralty, War… | ||