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).
Camshaft spline and magneto drive issues, including proposed modifications for testing.
| Identifier | ExFiles\Box 43\3\ Scan146 | |
| Date | 29th July 1917 | |
| -2- Contd. splines without trouble. We thought the plain bearing might introduce damping. We are therefore of the opinion that our previous trouble must have been produced by some exceptional combination of circumstances, conceivably a temporary seizure of the camshaft, and the nut working loose and allowing the splines to fidget endways. We have now a better nut. From our tests we can see no reason why the present vertical drive should not prove satisfactory. At the moment we are chiefly concerned with the magneto drive. From the difficulty we have in driving the magnetos by friction without slipping, and the wear on the bronze driving wheel, we feel that some flexibility is desirable in this drive. We have temporarily arranged two laminated spring drives for the magnetos as on the Eagle, by packing the magnetos out. We are running this to observe the effect. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Date DERBY ROLLS-ROYCE LIMITED (Reversed) File: 29.7.17 | ||