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).
Recommendation to include carborundum in the kit for touching up tungsten points and to update the instruction book.
| Identifier | ExFiles\Box 61b\1\ scan0060 | |
| Date | 18th December 1928 | |
| X6057 To EY. from EFC. C. BY/NHW. EFC2/T18.12.28 INSTRUCTION BOOK - TUNGSTEN POINTS. X8782 We recommend that for the purpose of touching up the tungsten points when necessary, we should include in the kit a small piece of flat carborundum, and a note to this effect included in the Instruction Book. It should, however, be made clear that normally, i.e. when points are kept free from oil and petrol, no touching up should be required over a long period of running. In fact, we might almost say that no touching up should be required, but that the points should be eventually replaced. To cover, however, the cases where the bedding may for some reason or other not be going quite correctly, it should be recommended that the carborundum be used to correct the condition of the points. EFC. | ||