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).
Technical memorandum discussing synchromesh noise and float chamber needle issues.
| Identifier | ExFiles\Box 90\2\ scan0043 | |
| Date | 8th June 1934 | |
| To Wor.{Arthur Wormald - General Works Manager} c. to L. c. to By.{R.W. Bailey - Chief Engineer} + 7961 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/KW. 8.6.34. B-67-AE. Mr. Geoffrey Smith. With reference to Wor.{Arthur Wormald - General Works Manager}3/T. 2.6.34. (1) We have found that the synchromesh mechanism is the main cause of the noise when a car is starting from rest. This noise gives the impression that the clutch is bad, whereas the same operation performed in silence would probably excite no comment. We think it should be possible to overcome the trouble without a major alteration to the gearbox. The Bentley clutch itself is of course receiving first priority in our experiments. (2) As E.{Mr Elliott - Chief Engineer} points out the new float chamber needles which are being supplied at the same time as the fire prevention drainage scheme should overcome the trouble. S.U's admit that the needles they have already supplied are unsatisfactory. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||