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).
From EFC to Mr. Hall requesting advice on altering the special metal mixture for piston rings from Messrs. J. Stubbs Ltd.
| Identifier | ExFiles\Box 37\2\ scan 164 | |
| Date | 5th November 1917 | |
| To Na{Mr Nadin}, for Mr. Hall. from EFC. EFC5/T5.11.17. 85. [handwritten] X.3156 - PISTON RINGS IN SPECIAL METAL BY MESSRS. J.{Mr Johnson W.M.} STUBBS LTD. With reference to the sample piston ring in the above metal which you advised [crossed out, with 'analysed' handwritten above] and reported upon on your sheet 59170 would you say if any alteration in this mixture of metal is desired, and if so, perhaps you would state the nature of this alteration as we understand Messrs. Stubbs are quite willing to carry out any suggestions we have to make. We have not yet got so far as having piston rings made from this metal on an engine. EFC. | ||