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).
Ongoing tests on self-adjusting tappets, oil drainage, and different plunger types.
| Identifier | ExFiles\Box 158\5\ scan0082 | |
| Date | 4th November 1940 guessed | |
| - 2 - At present the self adjusting set of tappets Hs.{Lord Ernest Hives - Chair}1210 in the chassis are being run continuously to see if wear takes place and its effect, also an arrangement is being devised to prevent oil draining back from the rocker shafts and oil pipes, etc. Further tests include the comparison between radial ended plungers giving line contact (at present used) and free to rotate plungers with spherical ends giving point contact. Hs{Lord Ernest Hives - Chair}/L.H. Swindall. | ||