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).
Design of the helical second gear for the 25HP gearbox.
| Identifier | ExFiles\Box 104\4\ scan0170 | |
| Date | 6th October 1932 | |
| X5310. RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}2/MA.6.10.32. HELICAL 2nd. GEAR - 25HP. With regard to the box Hs.{Lord Ernest Hives - Chair} has asked you to build up we find that the 2nd. speed gears can be the constant mesh gears reversed as this gives almost exactly the same ratio as in the presentbox. There should therefore be no more difficulties in the 25HP. than in the P.II box. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||