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).
Modifications to the gear lever shaft for the 25HP model.
| Identifier | ExFiles\Box 179b\1\ img008 | |
| Date | 16th August 1932 | |
| A.{Mr Adams} FROM HDY.{William Hardy} C. to EG. WOH. F.{Mr Friese} C. to BS.{A J. Barnes - Assistant Manager} WH. [STAMP] RECEIVED 16 AUG 32 [STAMP] ORIGINAL GEAR CONTROL. HDY{William Hardy}/1/WJ.8.32. X 5310 X 7310 X4027 We send herewith N. sch. 3498, which shows modifications to the gear lever shaft for the 25HP, to prevent binding sideways, and to reduce bearing surface oil drag. The use of a spherical bearing at the outer end eliminates the possibility of binding without increasing the size and weight of the parts. (Handwritten annotation: AT THE WORSE END) The Centralising springs HAVE been placed inside the shaft, and although of reduced dimensions, GIVE A MUCH LOWER MAXIMUM LOAD. The pendulum lever is to be hydraulically pressed on. Our drawing may not show the clearance between gear lever, frame, and floorboard, correctly, as we have no recent production drawings, but in any case no alteration from standard is intended. The gate should be made of B2/S. unless actual experience with the 25HP. S.M. gearbox has shown the need for S/M.{Mr Moon / Mr Moore} Will Derby kindly adapt this scheme to Peregrine, J.{Mr Johnson W.M.} 3., and Phantom. The shaft size and lever strength should be kept the same for all cars. HDY.{William Hardy} | ||