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).
Requesting modification to the poles on a 48 Coil Armature Dynamo for a higher output machine.
| Identifier | ExFiles\Box 60\1\ Scan212 | |
| Date | 8th March 1930 | |
| To Mr. Brock from EFC. X.6004. EFC. absent. EFC/CAP1/MS8.3.30. 6004 X. 8665 48 Coil Armature Dynamo. 600.6 We should be pleased if you would kindly have the poles on dynamo I.O.1. herewith, modified by trailing off in the usual manner. This is in connection with the development of a higher output machine of the above type, and is to enable us to fix the control brush angle for the two machines of this type having the polar modification, which are being instructed by the drawing office. EFC/CAP. | ||