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).
Table showing nominal, mean, maximum, and minimum radii of Nith springs by Toledo Woodhead.
| Identifier | ExFiles\Box 110\3\ scan0076 | |
| Date | 24th April 1941 | |
| Rm{William Robotham - Chief Engineer}/GB.12/ST.24.4.41 - 3 - TABLE SHOWING NOMINAL, MEAN, MAX, & MIN. RADII OF NITH SPRINGS BY TOLEDO WOODHEAD. Leaf No. Nominal Spring No. 1 Spring No. 2 Spring No. 3 Spring No. 4 mean max. min. mean max. min. mean max. min. mean max. min. rad. rad. rad. rad. rad. rad. rad. rad. rad. rad. rad. rad. 1 53.6 45.8 400 39 47.1 165 42.9 46.6 81 40 45.5 117 39 2 41.6 42.4 48 38.5 42 48.3 39 42 47.9 40 42 48.3 40 3 " 42.2 49 39.5 41.6 46.9 39 42.2 47.5 38.1 41.9 49 39.5 4 " 42.3 50 44 42.3 48.3 41.7 40.5 47.9 41.5 40.85 49 42.3 5 " 43.5 50.5 41.2 40.9 49.8 41.7 41.25 47.5 40 42.25 50 38.5 6 34.1 32.2 40.5 32.5 31.3 40.6 31 35.3 41 31.8 36.25 41.8 32 7 " 32.5 42.4 32 32.5 39 31.6 38.2 40.5 31.5 33 41.2 30.7 8 " 37.75 41.8 32.7 37.7 39 30.7 38.6 39 30.7 37.75 41.8 31.7 9 " 37.0 36.9 37.1 35.2 36.7 33.8 36.0 36.8 35.2 39.2 41.8 36.7 Rm{William Robotham - Chief Engineer}/GB. | ||