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).
Suggesting the adoption of the Dunlop Co. method for preventing pinion rattle in Bentley Jacks.
| Identifier | ExFiles\Box 139\2\ scan0112 | |
| Date | 26th July 1934 | |
| To BY/Mtn. c. to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 4317 Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring}14/KW. 26.7.34. Re. Bentley Jacks. Memo. BY/MTN. 8/N. 24.7.34. We have tried out the Dunlop Jack you handed to us, mentioned in the above memo, and suggest that the method adopted by the Dunlop Co. for preventing pinion rattle be accepted for production in the immediate future. They have minimised the clearance between the pinion handle socket and the Jack body, the clearance being .015". The increase of friction between the thrust washer and the newly machined face is negligible provided that they do not still further reduce the clearance. It would therefore be advisable to stipulate the clearance to be .015 + .005. Hs{Lord Ernest Hives - Chair}/J.Bowering. | ||