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 results of tests performed on a Bentley Roll Rod Lever and shaft.
| Identifier | ExFiles\Box 87\4\ scan0133 | |
| Date | 25th August 1936 | |
| To Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} x 246 Hs{Lord Ernest Hives - Chair}/WB.{Mr Brazier/Mr Bell}4/JH. 25.8.36. Bentley Roll Rod Lever Tests. Ex. 22113. Lever. Herewith results of tests upon knurled roll rod shaft and lever. The graph illustrates that very little movement of the lever relative to the shaft occurred until the elastic limit of the shaft was exceeded, i.e. up to 170 lbs/ft. approximately. After reaching the yield point of the shaft, slip occurred, and final shearing of the knurling was attained at 465 lbs/ft. torque. Hs{Lord Ernest Hives - Chair}/W.Bell. | ||