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 the balancing of shafts, fitting lubricators, and joint types.
| Identifier | ExFiles\Box 148\4\ scan0063 | |
| Date | 9th August 1937 | |
| ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. Telegrams & Cables: "AUTOJOINTS, BIRMINGHAM." Code: BENTLEY'S PHRAZE. Telephone: BIRCHFIELDS 4504/9 (6 LINES). Hardy Spicer & Co. Limited. Registered Offices and Works: Birch Road, Witton, Birmingham, 6. Manufacturers & Patentees of THE SPICER UNIVERSAL JOINTS & PROPELLER SHAFTS. Manufacturers & Patentees of THE HARDY FLEXIBLE COUPLINGS & PROPELLER SHAFTS. Manufacturers & Patentees of THE BRITISH BOUND BROOK OIL-LESS BEARINGS. Manufacturers & Patentees of COMPO OIL RETAINING BEARINGS. Our Reference JAD.MW Reference Rm.{William Robotham - Chief Engineer}Gry.{Shadwell Grylls}3/R 9th August, 1937. ROLLS ROYCE LIMITED. D E R B Y. Dear Sirs, We thank you for yours of 3rd inst. We understand your queries on the question of fitting a lubricator for balance. We do not fit these parts unless we are either provided with them or given an exact description, so we are sure of fitting the right type. Any shafts you have found affected by the weight of the nipple can be rebalanced with your nipple fitted. It usually makes little difference, not only is the ordinary push on nipple light, but it is fitted on a small radius. In referring to your ordinary type of Joint, we expect you mean the type with a central carrier for the bearings. There may be a little difference in resonance with this type and also a lower frequency. We have noted that certain cars are prone to show up this feature; in some makes only one horse power category, whilst the other models are free. In such cases we fit internally, a damping device and we could readily let you have one of a type to replace a shaft which you have noticed and from which you would readily observe the improvement when fitted to the same car. We might add that the weight will not be increased more than one ounce. Yours faithfully, p.p.HARDY, SPICER & CO. LIMITED. DIRECTOR J.A.Daniel Handwritten notes: Top center: 1262 Left margin top: GRY{Shadwell Grylls} Being sent today 10-8-37. GenlSuper Left margin middle: WYM{G. Harold Whyman - Experimental Manager} Please uphold a shaft for correction. Bottom center: Please retain memo & GRY{Shadwell Grylls} | ||