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).
Letter from Lake & Elliot Ltd. regarding the testing of micro sections from a drum.
| Identifier | ExFiles\Box 142\4\ scan0170 | |
| Date | 22th February 1936 | |
| Copy of letter From: LAKE & ELLIOT LTD. BRAINTREE Essex. Feb.22nd.1936 F2/T8 Messrs. Rolls-Royce Ltd. Nightingale Road Derby For the attention of.Mr. A.F.Martindale Dear Sirs, We are sending you to-day per post, under separate cover, two micro sections taken from one of your Drums in which we have attempted to produce the structure you desire for test. As we anticipated, this structure does not comprise the whole section but we think it is sufficiently prevalent to serve your purpose. A test bar poured at the same time and given the same treatment, yielded 14.45 Tons per square inch Tensile Strength and the Brinell Hardness is 163. We shall be pleased if you will examine these and let us have your comments as soon as possible. Yours faithfully FOR LAKE & ELLIOT LTD This copy is for the attention of the Purchase Department. ENCLOSURE No 528 "JUSTSO" | ||