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).
Chart and sketch detailing distortion measurements for a Nut-Trunnion ballrace diameter.
| Identifier | ExFiles\Box 93\3\ scan0296 | |
| Date | 31th March 1937 | |
| MARCH.31.37. NUT-TRUNNION. G.83341. MR. COGSWELL. PLEASE NOTE DISTORTION IN BALLRACE DIA SHOWN IN THE FOLLOWING CHART. AT POINTS INDICATED IN SKETCH. A B C D 1 | 3.00075 | 3.000 | 2.99925 | 3.000 2 | 3.001 | 3.00025 | 2.9995 | 3.00025 3 | 3.001 | 3.00025 | 2.999 | 3.00025 4 | 3.00125 | 3.000 | 2.999 | 3.000 5 | 3.001 | 3.00025 | 2.9985 | 3.00025 6 | 3.00075 | 3.000 | 2.99875 | 3.000 DRAWING SIZE: 3.000 F.{Mr Friese} KERSHAW. | ||