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 machining test results for various insulating materials to complete a report.
Identifier | ExFiles\Box 24\2\ Scan190 | |
Date | 24th April 1922 | |
X.1109. To RHC.{R. H. Coverley - Production Engineer} from EFC. EFC3/T24.4.22. X.1109 - TESTS OF INSULATING MATERIALS We now have fairly complete results on the series of tests, including hardness, water and oil absorption, effect of temperature, etc., of various insulating materials on the three groups with (1) Phenol base (2) Rubber base (3) Fibre base, but to complete the report on this, it would be desirable to have the results of the machining tests you have made on the various materials handed over to you. Perhaps, therefore, you would kindly look into this. EFC | ||