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).
Grinding down a parallel armature for a trial with a LeC. damper.
| Identifier | WestWitteringFiles\T\2January1929-June1929\ Scan160 | |
| Date | 6th March 1929 guessed | |
| contd :- -3- this first parallel armature has been ground down to 3.100/3.000. The copper has only just been touched, and the insulation is still O.K. We have some taper bore pole pieces and therefore everything for a trial of taper armature with LeC. damper. We expect to test the combination very shortly. EFC. | ||