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).
Quoting Mr. Royce's requirements for axle pivot strength tests.
| Identifier | ExFiles\Box 2\B002_X168\ 00000001-page125 | |
| Date | 12th June 1913 | |
| Wor{Arthur Wormald - General Works Manager}/S/1/112613. Re Axle Pivot Tests. - X.168 Hy{Tom Haldenby - Plant Engineer} Mr Royce writes re these :- 12/6/13. "We require to know the strength by reverse stress, and what breaks and what stands and not less than 1,000 applications of a given torsional strain in inch lbs?" p. Wor.{Arthur Wormald - General Works Manager} | ||