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 containing a table of test results for steering gears.
| Identifier | ExFiles\Box 28\2\ Scan047 | |
| Date | 30th August 1932 | |
| 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. ENG. 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.A.E., M.I.P.E. O.{Mr Oldham} CARLTON SMITH, M.E.(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. Our Ref. SCS/AGS/CB. Head Offices, Works and Design Dept.: DALLOW ROAD, LUTON. 30th. August, 1932. Messrs. Rolls-Royce Ltd., DERBY. Weight Lbs. Height dropped Inches. Equivalent load measured by drop on spring balance Lbs. Flick at Wheel Lbs. Movement at Wheel Rim Inches. 1 12 19 1/2 5/64" 1 24 24 7/8 5/32 1 48 29 1 1/8 13/32 2 12 26 3/4 1/4 2 24 42 1 5/16 2 48 57 1 1/2 9/16 3 12 35 1 9/32 3 24 49 1 3/4 1/2 3 48 73 3 1 1/8 ADAMANT ENGINEERING COMPANY LIMITED. S. Carlton Smith Director. | ||