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).
Cross-sectional drawing of a valve or actuator assembly featuring a bellows and return spring.
| Identifier | ExFiles\Box 152\1\ scan0268 | |
| Date | 25th March 1937 guessed | |
| Bellows return Spring, Brass seal Held by the 4 Studs, Quick Thread on Bellows spindle, 17/32, 3/8, 4 3/32, 5/32" CRS | ||