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).
Re-introduction of pinned valve tappets for the 40/50 HP chassis to reduce noise.
| Identifier | ExFiles\Box 158\4\ scan0001 | |
| Date | 20th November 1919 | |
| (DA{Bernard Day - Chassis Design}) To Da.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Bn.{W.O. Bentley / Mr Barrington} c. to EP.{G. Eric Platford - Chief Quality Engineer} c. to EH. c. to Cy. c. to EFC. E2/G20.11.19. X.3733 - RE PINNED VALVE TAPPETS 40/50 H.P. CHASSIS. We send you herewith drawing No LeC.1160 showing the above. In consequence of slight noise due to the tappets, and the fine clearance that is necessary, Mr. Royce thinks it is advisable to go back to pinned tappets. He remarks that we cancelled pinning for the sake of simplicity. Would you please arrange to fit these to chassis 1 EX before it is returned to West WitteringHenry Royce's home town. E.{Mr Elliott - Chief Engineer} R R 235 B (200'T) (S F) 674. 22-5-19. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2376. | ||