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).
Specification for building a 20/25 gearbox with altered ratios for Bensport.
| Identifier | ExFiles\Box 86\4\ scan0043 | |
| Date | 8th February 1933 | |
| X 228 RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}1/KT. 8.2.33. BENSPORT GEARBOX. We want to try a 20/25 gearbox with altered ratios for Bensport. Will you please build one up to the following specification:- Constant mesh gears - N.sch.3658. Ex.10413/4. 3rd speed gears - Std. G.L.495. 1st speed gears - N.sch.3658. Reverse gear - N.sch.3658. 2nd. speed gears to N.sch.3633 but with the ratio altered from 35 to 37. 51 49 In order to assemble the 37 tooth sideshaft gear, the outside diameter of the central ball race, shown on N.sch.3633, has to be increased so that the gear can pass through its housing. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||