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).
Specification for the maximum pressure setting of the shock damper governor unit safety release valve for various chassis.
| Identifier | ExFiles\Box 105\3\ scan0351 | |
| Date | 12th July 1934 | |
| X5520 By.{R.W. Bailey - Chief Engineer} c. to Mx.{John H Maddocks - Chief Proving Officer} c. to Sft{Mr Swift}/Sct. Hs{Lord Ernest Hives - Chair}/Les.11/KW.12.7.34. Shock damper Governor Unit Safety Release Valve. For 40/50 chassis this can now be set so that the maximum pressure of 40 lbs/sq.in. is built up in the system. This figure must not be exceeded. For 25 HP. and Bentley chassis the maximum pressure can go up to a maximum of 35 lbs/sq.in. Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} | ||