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).
Issue with ball pins without tab washers on a 25/30 HP model, recommending a return to the previous design.
| Identifier | ExFiles\Box 108\3\ scan0160 | |
| Date | 23th March 1938 | |
| To. Rm.{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} LEVALLOIS. I/.23.3.38. 26.G.VI.- 25/30 HP. Ball Pins Without Tab Washers. When the rear spring job was being carried out, we found that the ball pin was loose on its taper in the N.S.R. shock damper arm. This is the new type without a tab washer to prevent the ball pin turning while tightening the nut. We could not tighten it again properly for this reason. Similar troubles have been experienced before with this type of ball pin. We think that the trouble in service will outweigh the cost saving of deleting the tab washer, and recommend that we adhere to the previous design. ----------------- Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} Frank. Waller. | ||