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 Hardy Spicer & Co. Ltd. discussing issues with a shaft following dynamometer tests.
| Identifier | ExFiles\Box 148\4\ scan0077 | |
| Date | 6th July 1938 | |
| 1262 HARDY SPICER & CO. LIMITED. TELEPHONE: BIRCHFIELDS 4504-9. 6 LINES TELEGRAMS & CABLES: AUTOJOINTS, BIRMINGHAM CODE: BENTLEY'S PHRAZE LONDON OFFICE 54. ST.{Capt. P. R. Strong} THOMAS STREET LONDON S.E.1 TELEPHONE HOP 0703 Manufacturers of HARDY SPICER UNIVERSAL JOINTS AND PROPELLER SHAFTS · GENUINE HARDY FLEXIBLE COUPLINGS BRITISH BOUND BROOK OIL-LESS & COMPO OIL-RETAINING BEARINGS ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY Registered Office and Works BIRCH ROAD · WITTON BIRMINGHAM·6 ENGLAND OUR REF. JAD.MW YOUR REF. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}11/MH.{M. Huckerby} Experimental Dept. HPS{Horace Percy Smith - Experimental Factory Mgr} 6th July, 1938. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} Grylls Esq. Rolls Royce Limited. D E R B Y. Dear Mr.Grylls, I am always nervous about Dynamometer tests especially when vibration is abnormal or stiff shafts such as used on Radial Engines. These doubts quite apart, the journal of the shaft that you sent is the old pattern again with blind ended holes. The tube looks as if it had been chewed through and also great heat has been on the joint, this being so high that I can't credit that it was created within the joint. I think perhaps you might tell me a little more of what you have been doing with it. If we leave out the heat and the grease throwhout, I should say the journal has stood up well but has suffered from consistent overload. Yours sincerely, J.W. Daniell | ||