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).
Confirming the dispatch of drawings for a revised epicyclic 3rd speed gearbox for testing purposes.
| Identifier | ExFiles\Box 15\5\ Scan162 | |
| Date | 13th October 1930 | |
| BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} Copy to - HS.{Lord Ernest Hives - Chair} X/7310 DA{Bernard Day - Chassis Design}1/M/13.10.30. REVISED EPICYCLIC 3rd. SPEED GEARBOX. X. 5310. X. 7310. X. 523. This is to confirm having sent you on Saturday N. sch. 3155. a drawing of the gears in the three speed part of the above box, the object being that in conjunction with N. sch. 3149. (also sent you on that day,) you should be able to get a set of gears in progress for testing purposes. The information given as regards the jaw clutches is somewhat experimental, the actual best proportions probably being arrived at by test. Particulars as to the casing and actuating gear will follow in the course of a few days. DA.{Bernard Day - Chassis Design} | ||