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).
The performance of a self-locking tappet on a Studebaker 20 HP car.
| Identifier | ExFiles\Box 127\5\ scan0052 | |
| Date | 7th December 1942 | |
| 1092 To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Wym{G. Harold Whyman - Experimental Manager}/C.Lee. c. to Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} c. to Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} Rm{William Robotham - Chief Engineer}/Wym{G. Harold Whyman - Experimental Manager}/C.Lee.11/OH. 7.12.42. Studebaker 20 HP. Attached is a photograph showing self-locking tappet on our Studebaker car. The absence of a locking nut simplifies the tappet setting. There has been no variation in tappet clearance due to adjuster screws becoming loose and they have been satisfactory during the life of the car which has run a total of 35,000 miles. Rm{William Robotham - Chief Engineer}/Wym{G. Harold Whyman - Experimental Manager}/C.Lee. [Signature] | ||