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).
The fit of castellated gears for the 40/50 gearbox under 'N' Scheme 622.
| Identifier | ExFiles\Box 20\10\ Scan011 | |
| Date | 26th October 1920 | |
| X.4195 To copy from Ds, Copy to HS.{Lord Ernest Hives - Chair} Copy to FW. Copy to FC. Copy to RHS. DA{Bernard Day - Chassis Design}/HDY{William Hardy}1/OB26-10-20. With reference to "N" Scheme 622 we are aware that the castellated shown are for a fired gear in the 40/50 gear box, and suggest that the internal diameter of the broached gear centre be reduced to give a sliding fit on the bottom of the shaft castellated. If this is inconvenient owing to insufficient broach clearance, we have no objection to the gear sliding on the sides of the castellated. [STAMP: C, OCT 26 1920, RECEIVED] DA{Bernard Day - Chassis Design}/HDY.{William Hardy} R.{Sir Henry Royce} R.{Sir Henry Royce} 2555 (100 T's S.H. 89. 12-7-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2769 | ||