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).
Diagrams showing a cross-section, top view, and force/timing diagram of a mechanical assembly.
| Identifier | ExFiles\Box 147\4\ scan0180 | |
| Date | 11th November 1941 guessed | |
| Fig.1., Fig.2., Fig.3., 2, 7°, 10, 11, 12a, 13, 14, 15, 16, 17a, 18, 18a, 19, 20, 20°, 21, 22, 23, m, r, 0°, 3°, 56°, 111°, 115°, 117°, 118°, 134°, 180°, 236°, 246°, 357° | ||