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).
Query regarding the suitability of a 28 slot armature for a narrow brush machine, originally specified for a wide brush machine.
| Identifier | ExFiles\Box 68\4\ scan0037 | |
| Date | 5th July 1928 | |
| X8672 To EFC. BY/RD2/ML.5.7.28. 28 SLOT ARMATURE - PHANTOM DYNAMO. In preparing this armature for production I noticed in EFC1/LG.12.7.27 which refers to an alteration in the commutator position the wide brush machine is referred to, will the same setting be O.K. for the narrow brush machine for which this armature is now to be used? C.A.P. told RD. "yes" BY RD. | ||