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).
Two schemes for lubricating the Phantom I cantilever spring.
| Identifier | ExFiles\Box 67a\2\ scan0237 | |
| Date | 11th November 1929 | |
| X 8410 To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. Sg.{Arthur F. Sidgreaves - MD} c. Wor.{Arthur Wormald - General Works Manager} E.{Mr Elliott - Chief Engineer} c. Da.{Bernard Day - Chassis Design} Hy.{Tom Haldenby - Plant Engineer} Hs{Lord Ernest Hives - Chair}/RmA/AD11.11.29. PHANTOM I SPRINGING We have tried out two schemes of lubricating the cantilever spring in conjunction with the Repair Dept. one scheme from the centre bolt and the other from the ends of the spring. We attach sketches of the respective schemes. We find that we can get the lubrication to the tips of the leaves with less difficulty if we lubricate from the ends instead of from the centre bolt. Unless a great quantity of oil is inserted through the centre bolt a lot of it is lost through gaps in the sides of the leaves on its way to the ends of the spring. Lubrication at two points both close to where the oil is required appears to give the best result, and we should like to standardize this scheme. The centre bolt scheme has the added dis-advantage that with some of the coachwork at present produced, special adaptors are required to enable the grease gun to be applied. We have done a good deal of work using the American type shock absorber and lubricated springs on Phantom I cars, and generally the results are encouraging. We have however, proved that the American type shock absorber by itself does not make a big difference and | ||