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).
With a sketch proposing the use of electric welding for the EAC.7 gearbox striking forks to simplify the manufacturing process.
| Identifier | ExFiles\Box 15\5\ Scan003 | |
| Date | 29th March 1926 | |
| To EY. from AJS. c.c. to Hs{Lord Ernest Hives - Chair}/RHC.{R. H. Coverley - Production Engineer} X 7310 AJS1/M29.3.26. RE ELECTRIC WELDING X.7310. X.1699 In the design of the new EAC.7 gearbox that we are getting on with we find that the striking forks, and the guide portion of which they are an integral part, make a very inconvenient forging in some cases, but if the pieces could be electrically welded as indicated they would become extremely simple. We should therefore be much obliged if you would kindly give the sketch hereunder your attention with a view to letting us know if you consider such a proposition can be carried out with reasonable and uniform efficiency, because if so, it will save us not only a complicated built up piece, but the extra space, and therefore extra material entailed by this. AJS. SKETCH INDICATES PRINCIPLE ONLY. [Handwritten annotations on sketch] SAME DIAS. WELDED AT INCREASED DIA. DIAS. ARE APPROX. CORRECT PROBABLY COUNTERBORED FOR THIS LENGTH BUT NOT CERTAIN | ||