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).
Page 3 of a letter detailing the Stelliting process for valves, including a sketch and cooling instructions.
| Identifier | ExFiles\Box 158\4\ scan0174 | |
| Date | 21th September 1937 guessed | |
| -3- The sketch shows the sequence of the Stelliting with the revolutions - Some form of mechanism should be made to give the correct rotation and controllable by the operator. (8) The cooling off after Stelliting should be made by placing the valve in powdered lime, mica or Silica dust. (9) We enclose a drawing of our Bentley exhaust valve which indicates the section and shape to which the Stellite is applied. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||