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).
Alteration of a push-button switch, including a technical sketch with dimensions.
| Identifier | ExFiles\Box 34\3\ Scan046 | |
| Date | 18th September 1919 | |
| To S.M. for Mr. Brock from BY/HBO. C. to E.F.C. BY/HBO3/DW.18/9/19. X 2641 RE PUSH BUTTON SWITCH - SEC. 7270. With regard to the above, kindly alter this as per sketch below:- LENGTHEN WOOD .050. .015 +5 ALTER G.5542 AS SHOWN MATERIAL SHEET BRASS. RIVET CANCELLED 2.300 DIA: .050 +10 2.500 DIA: This means that the .050 packing will require fitting until new castings of F.7122 are available. BY/HBO. | ||