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).
Modification of standard Morganite brushes for a Phantom I dynamo, increasing the bevel from 15° to 30°.
| Identifier | ExFiles\Box 60\1\ Scan224 | |
| Date | 9th April 1930 | |
| X.8673 RHC.{R. H. Coverley - Production Engineer} from EFC. c. Hs{Lord Ernest Hives - Chair}/AJL. EFC3/AD9.4.30. X.8673. STANDARD MORGANITE BRUSHES WITH 30° BEVEL. We are sending into the shop, 56 coil Phantom I dynamo L.28.S. fitted with a set of standard (EG2.) Morganite brushes with the bevels increased from 15° to 30°. Will you please have this machine fitted to 9-EX and return to us dynamo K.28.S. at present thereon. EFC/CAP. | ||