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).
Removal of the Bijur lubrication system from the 20/25 HP servo due to inefficiency.
| Identifier | ExFiles\Box 105\4\ scan0118 | |
| Date | 4th October 1933 | |
| X5370 To By.{R.W. Bailey - Chief Engineer} from Hs.{Lord Ernest Hives - Chair} c. Wor.{Arthur Wormald - General Works Manager} Mx.{John H Maddocks - Chief Proving Officer} c. Hd.{Mr Hayward/Mr Huddy} Hs.{Lord Ernest Hives - Chair}7/KT.4.10.33. 20/25 HP. SERVO. Replying to BY.9/G.2.10.33. We are strongly in favour of cutting off the Bijur lubrication entirely from the servo, and relying on hand lubrication. This scheme has been used on hundreds of the original 25 HP. servos and has not given any trouble. The increase in complaints of the 25 HP. servo being inefficient due to oil has recently been alarming, and therefore we have to go back to the original arrangement with no Bijur as the safest policy. Hs.{Lord Ernest Hives - Chair} | ||