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).
Recommending grade 745S waxed paper for coil insulation after testing.
| Identifier | ExFiles\Box 61\1\ scan0224 | |
| Date | 12th January 1935 | |
| H110. By.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Wst. c. to Roy.{Sir Henry Royce} Hs{Lord Ernest Hives - Chair}/Wst.2/MA.12.1.35. COIL INSULATING PAPER We have now tested further samples of waxed paper handed to us by Roy{Sir Henry Royce}/MS submitted for test by the L.P.S. Electrical Co.Ltd. Grade 745S we find to be the suitable and of approximately the same quality as the grade 503 which has previously been used on production. We therefore recommend this grade for production in the same thickness as grade 503. Hs{Lord Ernest Hives - Chair}/Wst. | ||