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).
The spring loading for a carburetter throttle, including spring specifications and test results.
| Identifier | ExFiles\Box 66a\1\ scan0029 | |
| Date | 24th January 1925 | |
| To Hs.{Lord Ernest Hives - Chair} for Mr Robotham. HS{Lord Ernest Hives - Chair}8080 BY/SS{S. Smith}2/DB.{Donald Bastow - Suspensions}24.1.25. RE EAC.VI - CARBURETTER THROTTLE. SPRING LOADING. Spring E.72718. Initial length - 2.900 @ .550 rad: Final length - 3.825 @ .600 rad: | | Extension (Ins:) | Load (Lbs.) | Rad: (Ins:) | Torque (In:Lbs.) | |---|---|---|---|---| | Initial. | .700 | 4.25 | .550 | 2.32 | | Final. | 1.625 | 10 | .600 | 6 | [Signature] BY/SS.{S. Smith} | ||