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 tests on samples of insulating materials, including Continental Bakelite.
| Identifier | ExFiles\Box 24\2\ Scan141 | |
| Date | 6th May 1921 | |
| R.R. 235a (100 T) S.H SS.{S. Smith} 22-7-20 G 2769 X.1109 To RHC.{R. H. Coverley - Production Engineer} from EFC. EFC1/T6.5.21. c. Hs.{Lord Ernest Hives - Chair} c. Da.{Bernard Day - Chassis Design} c. Da{Bernard Day - Chassis Design}/Thr. c. By.{R.W. Bailey - Chief Engineer} X.1109 SAMPLES OF INSULATING MATERIAL X.3513 FOR MACHINING TESTS. We have made a selection of insulating materials for machining tests, duly labelled, a list of which is attached. We should be glad if you would have these tested as far as possible for suitability for drilling, turning (with fine and moderately deep cuts), tapping and polishing. The thin piece of Continental Bakelite might be tried for pressing like sheet metal as mentioned in Oy 24/F25.9.19. EFC. | ||