From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter from Adamant Engineering Company enclosing drawings for a Cam and Roller and clarifying specifications.
| Identifier | ExFiles\Box 153\1\ scan0021 | |
| Date | 20th August 1937 | |
| AD FORM 93. Telegrams: "ADAMANT, Phone, Luton." CONTRACTORS TO H.M. ADMIRALTY, WAR OFFICE & AIR MINISTRY. Telephone: LUTON 2662 (3 LINES). [Logo: NATIONAL SCHEME FOR DISABLED MEN] [Logo: THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS LTD] ADAMANT ENGINEERING COMPANY, LIMITED (Incorporating J.{Mr Johnson W.M.} C. THREADGOLD & SONS. Established 1878.) Engineers and Founders. SPECIALISTS in the DESIGN and MANUFACTURE of HIGH PRECISION TOOLS, JIGS, FIXTURES, etc. SPECIAL MACHINES, SPECIAL MACHINE TOOLS and ACCURATE PRODUCTION WORK. SOLE MANUFACTURERS and SALES AGENTS for the MARLES and MARLES-WELLER STEERING GEARS. Directors: F.{Mr Friese} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} MATRAVERS, M.A. (CANTAB), A.M.I.MECH.E., A.M.I.E.E., M.I.A.E., M.I.P.E. O.{Mr Oldham} CARLTON SMITH, M.A. (CANTAB). F.I.S.A., M.I.P.E., Secretary. ALFRED SLATTER, M.I.E.E. J.{Mr Johnson W.M.} W. HAZEL, F.I.S.A. Your Ref. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}17/JH Our Ref. FGM/IFW. Head Offices, Works and Design Dept.: DALLOW ROAD, LUTON. Messrs. Rolls-Royce, Ltd., DERBY. F.J. HARDY Friday, 20th August, 1937. For the attention of F.J. Hardy, Esq. Dear Sirs, We are duly in receipt of your letter of the 19th instant, reference as above, and have carefully noted the contents of the same. Following our letter of the 16th instant, we now have pleasure in enclosing herewith two drawings, our M.22614 and M.22615, shewing the Cam and Roller in accordance with the requirements you lay down in your letter of the 14th instant, reference Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}4/AP. In regard to the Cam, we would like to call your attention to the fact that the full lines on the drawing assume that the total Rocker Shaft movement available in the box from stop to stop is 84 degrees. If the 84 degrees movement is required on the road then the available travel inside the box must be no less than 90 degrees, and the dotted line dimensions in black ink are for a Cam giving this latter movement, namely, 90 degrees. We beg to take the liberty of enclosing also drawing of our standard '510' Cam, P.3339, and you will note - 1 - Handwritten annotations: Document number: 1.1300 Next to "Our Ref.": .152, 608 Around the date: .152, 304, 362/-, 1.450 Below "For the attention of...": 1.366, 304/, 1.057, 2.114 Signature: F.J. HARDY | ||