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).
List of features and proposed modifications for double acting shock absorbers.
| Identifier | ExFiles\Box 55\3\ Scan050 | |
| Date | 2nd February 1926 guessed | |
| contd :- -2- (1) These are the first double acting shock absorbers with unequal action, preferably 3 or 4 to 1. (2) They are reasonably independent of the viscosity of the fluid. (3) They are arranged for forced filling of the suction end of the cyl. (high speed action). (4) They are fitted with replenishing valves and restricted outlet to discharge air governed by non-return valve. See sketch attached for the slight modifications to what we already have - i.e. position of low pressure restricted vent, plus ball non-return valve. R. {Sir Henry Royce} SEE ORIGINAL FOR SKETCH. | ||