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).
Request to service a 48 coil dynamo S.S.X. by skimming the commutator to fix sparking and uneven output.
| Identifier | ExFiles\Box 60\1\ Scan286 | |
| Date | 4th November 1930 | |
| X6006 RHC.{R. H. Coverley - Production Engineer} from EFC. EFCL/ADL4.11.30. X.6006. 48 COIL DYNAMO S.S.X. Will you please have the commutator of the armature fitted in the above dynamo, which we are handing to you, skimmed up. Sparking has developed at the brushes of this machine together with an unsteadiness of output, due to the surface of the commutator being uneven. Completed. EFC/CAP. | ||