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).
Automatic induction scheme, brake gear banjos, and front-end drive systems.
| Identifier | ExFiles\Box 173\2\ img065 | |
| Date | 13th February 1934 guessed | |
| IV with the fully automatic induction operated scheme. The whole scheme of connection is proposed and I think is excellent. Our present Banjos on the brake gear are diabolical, one is almost bound to crack the solder joint owing to the Banjo turning with the retaining bolt when unscrewing. I speak from practical experience. FRONT END DRIVE. The following points emerge. 1. Silent Chain Drives are almost universal over here. 2. Cadillacs run 100 hour endurance tests at 4250 R.P.M. These Chains are not their limiting factor they say. Numerous eights run over 4000 R.P.M. 3. When I put Mobil A in the Bentley the gear sing can be plainly heard. Mobil A is S.A.E 30. Mobil Artic is S.A.E. 20 Manufacturers recommend, and most people here use, an ultra thin oil Standard S.A.E. 10 for cold starting and yet I do not remember hearing a front end howl or song. | ||