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).
Laboratory report on the effects of heating two samples of high tension cable in an air bath.
| Identifier | ExFiles\Box 168\1\ img036 | |
| Date | 17th May 1926 | |
| X3860 EFC. H12/EA17.5.26. Laboratory. Re High Tension Cable. As requested we have heated the two small samples of the above cable in an air bath for a period of half an hour. The temperature varied between 190°C and 200°C. Both samples were considerably affected by this treatment, the dark sample swelling and becoming sticky, and the grey sample becoming softer. Both samples are returned herewith. H1/EJW. Dark sample - Maconite Grey Sample - Standard. H.E.W. [Stamp: RECEIVED] | ||