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. regarding axle shaft splines, and prints for a Model 23 centre and fittings.
| Identifier | ExFiles\Box 114\1\ scan0263 | |
| Date | 23th November 1939 | |
| 1015 HARDY SPICER & CO., LIMITED. TELEPHONE: BIRCHFIELDS 4504-9. 6 LINES TELEGRAMS & CABLES: AUTOJOINTS, BIRMINGHAM CODE: BENTLEY'S PHRAZE LONDON OFFICE 54-55 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/MGG. YOUR REF. Rm.{William Robotham - Chief Engineer}7/MH.{M. Huckerby} 23rd. November 1939. W.A.Robotham,Esq., Messrs. Rolls-Royce Ltd., DERBY. Dear Mr.Robotham, I thank you for your letter of the 16th.inst., Messrs. Grylls and Hardy called here and we went through the details. I am in agreement with the view that the bottom of the Splines should be at least the diameter of the neck of Axle Shaft. We have noted at times the U.S.A. do not adhere to this absolutely. They, however, have a novel method which I forget, which works on the area ratio of shaft to area of teeth. We have produced print 3HA-001-5, showing the model 23 centre with suitable shafts, tubes etc., and your fittings for Rippletto, but we are still not clear on the fittings for the Myth. If you will please check this print it will allow us to proceed. Yours sincerely, J.A.Daniell | ||