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).
Rig testing and analysis of a cracked Cadillac axle shaft for comparison with a semi-floating axle shaft.
| Identifier | ExFiles\Box 114\1\ scan0124 | |
| Date | 31th March 1938 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. W.Bell. c. Laboratory. c. By/CRL.{C. R. Lisson} γ 1015 SEMI-FLOATING AXLES. We have managed, by a rig test, to crack a Cadillac axle shaft. We should like an analysis of this shaft because we do not know of what steel it is made, and we should also like to know the hardness of the splines. In removing metal for the analysis please do not destroy the part of the shaft where it is cracked, as we want to keep this as an exhibit. We now want to test on a similar rig, the Rolls-Royce semi-floating axle shaft. By/CRL.{C. R. Lisson} is preparing a drawing of this showing sufficient dimensions for our purpose. Will you please put in hand a couple of shafts, one in S/ZNX. and one in S/ZNCR, so that we can determine their life relative to the Cadillac shaft. The rig will have to be slightly altered because the overhang on the Rolls-Royce axle is not the same as on the Cadillac one. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||