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).
Outlining the requirements for various spring and torsion tests.
| Identifier | ExFiles\Box 67a\1\ scan0201 | |
| Date | 14th May 1926 | |
| To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} SPRING TESTS. While we have the spring testing tackle rigged up, we should like to obtain the following further particulars :- (1) Narrow axle pad - vertical shackle. Three sets of oscillation readings as at present being taken on wide pad. One set of readings, gradual load and gradual extension. (2) Narrow axle pad - shackle inclined 30° inwards at normal load position. Three sets of oscillation readings only. (3) Woodhead spring with reversed top leaves - wide axle pad - shackle in standard front wheel brake position. Three sets of oscillation readings - three sets readings gradual load and gradual rebound. TORSION TEST. Apparatus rigged up as in sketch. Torque test taken on :- (a) Standard front spring off-set with wide axle pad. (b) Position of shackle reversed. (c) Shackle as in (a), off-set of axle reversed i.e. long length of spring on the same side as the torque application. (d) As in (a) - Woodhead patent spring with reversed leaves. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||