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).
Secret memo on resolving issues with the 40/50 gearbox by supplying a torsionally free pinion.
| Identifier | ExFiles\Box 66\4\ scan0181 | |
| Date | 1st March 1925 | |
| 48310 To R. {Sir Henry Royce} from AJS. S E C R E T. AJS2/M2. 3. 25. c. to CJ. BJ. c. to HS. {Lord Ernest Hives - Chair} E. {Mr Elliott - Chief Engineer} c. to DA. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} c. to Wor. {Arthur Wormald - General Works Manager} 40/50 GEARBOX. X.3426 X.8310 In view of :- (1) The trouble experienced with India 1st. and 2nd. speed pinions. (2) That on the 40/50 gearbox rearranged for the 'V' series underframe chassis we have locating plungers in place of the notched gate. (3) That without the notches referred to in (2) considerable force was required to hold it in the 2nd. gear, and the 1st. had a tendency to come out, as reported in Hs {Lord Ernest Hives - Chair} 5/LG28.2.25. We are sending herewith torsionally free pinion for the 40/50 (Lec.2021 original to BY. {R.W. Bailey - Chief Engineer} print to R. {Sir Henry Royce} ) which we consider it will be necessary to use with the underframe gearbox. AJS. | ||