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 discussing the suitability of Marles vs. Marles-Weller steering gears for Bentley and Phantom cars.
| Identifier | ExFiles\Box 28\2\ Scan230 | |
| Date | 8th September 1933 | |
| Telegrams: "ADAMANT, Phone, Luton." CONTRACTORS TO H.M. ADMIRALTY, WAR OFFICE & AIR MINISTRY. Telephone: LUTON 1818 (2 LINES). 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: S. CARLTON SMITH, A.M.I.MECH.E., M.I.P.E. ENGR. LT. COMMANDER F.{Mr Friese} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} MATRAVERS, R.N., 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. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/Head Offices, Works and Design Dept.: Our Ref. FGM/AGS/CB. DALLOW ROAD, LUTON. 8th. September, 1933. Messrs. Rolls-Royce Ltd., DERBY. Dear Sir, For the attention of Mr. Robotham. We would thank you for your favor dated the 2nd instant, reference as above, and are very sorry to hear that the smaller Marles-Weller Steering we submitted to you for use on the Bentley car does not appear to show up to the advantage that this type of Steering did on your Phantom Rolls-Royce. From the contents of the second paragraph of your letter it would appear to us that having in mind the characteristics mentioned in this paragraph, probably the Marles Gear would be the more suitable for this particular car. From the information we have regarding this car, as regards size and weight, we would put forward our L.7 Gear, as shewn on the enclosed drawing G.A.2325, and we should very much like to have an opportunity of submitting one of these Gears for you to try. You will remember when we suggested the Marles-Weller Gear for your Rolls-Royce car, we put forward the reason that you were troubled with wheel wobble, and the Marles-Weller Gear is able to damp out these things better than the Marles Gear, owing to its extremely low reverse efficiency. The Marles Gear however, is considerably more efficient, and also is equally efficient under locks as it is in the straight ahead position. You will of course appreciate all these points in the - 1 - | ||