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).
Quotation from Crofts (Engineers) Ltd. for a 25' size horizontal open type variable speed gear.
| Identifier | ExFiles\Box 119\1\ scan0214 | |
| Date | 23th June 1939 | |
| (2) CROFTS (Engineers) LTD., BRADFORD. To Rolls-Royce Ltd., Derby. Sheet No. 2. 23/6/39. As an alternative, we are quoting for our 25" size gear, which is similar to that supplied to Messrs. Vauxhall Motors Ltd., but this gear will only transmit approx. 32 H.P. at the max. speed of the output shaft. 1. "Crofts" 25" horizontal open type variable speed gear, ratio 5/1, fitted with ball bearings throughout, constant shaft speed 295 R.P.M., variable shaft speeds 640/128 R.P.M., capable of transmitting as a maximum, approx. 32 H.P. at max. speed of variable speed shaft, with handwheel control. £80. 0. 0. If the above gear is fitted with transomes to carry motor - £13. 6. 6. extra, Terms N E T T cash monthly, including carriage to Derby. Despatch - abt. 21 working days. Soliciting your commands, Yours faithfully, Crofts (Engrs) Ltds. | ||