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).
Obtaining new specimen brushes for the 'Goshawk II' dynamo and motor due to altered holder dimensions.
| Identifier | ExFiles\Box 35\4\ scan 049 | |
| Date | 31th August 1921 | |
| X4384 To EX. from EFC. c. to By/WER. EFC1/T31.8.21. X4384 X4383 X3948 (crossed out) X3348 (crossed out) RE BRUSHES FOR "GOSHAWK II". DYNAMO AND MOTOR. In answer to your Ey3/P30.8.21, we have already obtained a number of sample brushes in different grades of Morganite and Le Carbone for the Goshawk machines, but since that time the brush holder dimensions have been altered and it will be necessary to obtain other brushes. The grades we think we should obtain specimen brushes of, are for the motor, C.M.3 Morganite only, but for the dynamo we should obtain E.G.O. Morganite (as recently recommended by Messrs. Lucas). C.G.3 Le Carbone. and Grade X Le Carbone. I had already arranged with Mr. Robinson that when the drawings are complete, he would let me know and I would instruct the O.O. to obtain a number of sample brushes. EFC. | ||