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 process of removing errors in leaf curvature and analyzing stresses in leaf springs.
| Identifier | ExFiles\Box 154a\2\ scan0362 | |
| Date | 1st July 1941 | |
| Rm{William Robotham - Chief Engineer}/GB.2/RH.{R. Hollingworth}1.7.41. 6. This operation is the removal of the errors in leaf curvature which have crept in during the hardening and tempering operations. It is done by hammering or by steam presses. In both cases, a gauge of some sort is provided. This generally appeared to be another leaf. Stresses. Woodhead's like to work to a normal loaded stress of 30 tons/sq.inch on rear springs. The Myth spring stresses are 28.6 tons/sq.inch, main leaf and 39 tons/sq.inch, remainder. The Vauxhall 10 stresses are, main leaf 25 tons/sq.inch Nos.2-5, 34 tons/sq.inch : Nos. 6-8, 39 tons/ sq.inch. Rm{William Robotham - Chief Engineer}/GB. G.B. | ||