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).
The trial of a new Dynamo Commutator Assembly with reduced micas.
| Identifier | ExFiles\Box 51\1\ Scan244 | |
| Date | 26th September 1923 | |
| X4383 To RHC {R. H. Coverley - Production Engineer} C. EFC. {E. Fowler Clarke - Electrical Engineer} BY {R.W. Bailey - Chief Engineer} /Ds2/ML.26.9.23. X.4383 - DYNAMO. Please receive herewith 1 Blueprint of D.51147 - Commutator Assembly with reduced Micas. This is a standard Commutator except that the mica is machined away before the Commutator is fitted to the Armature. Will you please put three sets in hand to be fitted to your Expl: Dynamos for trial. After sweating in the Armature End Connections and finally turning the Commutator, care must be taken to clear the slots right out to prevent one bar shorting another. BY {R.W. Bailey - Chief Engineer} /Ds. | ||