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 The Light Production Co. Ltd discussing an experimental tin coating process on aluminium bearings.
| Identifier | ExFiles\Box 115\3\ scan0161 | |
| Date | 22th December 1937 | |
| THE LIGHT PRODUCTION CO. LTD PROPRIETORS OF THE LONDON PISTON RING CO. LIMITED. [Handwritten top right]: SWDL{Len H. Swindell} Files } PLEASE NOTE P [Handwritten top left]: 10204? P. files TELEPHONE: VICTORIA 0671 (5 LINES). CODES: A.{Mr Adams} B. C. 5TH EDITION ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. ON ADMIRALTY, WAR OFFICE AND AIR MINISTRY LISTS. CHAIRMAN & MANAGING DIRECTOR: M.{Mr Moon / Mr Moore} V.{VIENNA} ROBERTS. DIRECTORS: C. F.{Mr Friese} GEORGE WM. THIRTLE. E.{Mr Elliott - Chief Engineer} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} DAVIES ENGINEERS 60/66, ROCHESTER ROW, WESTMINSTER, S.W.1 WORKS AND GOODS ADDRESS: 61/67, GREENCOAT PLACE, WESTMINSTER, S.W.1. TELEGRAMS: INLAND, NAPOLEONIC, SOWEST, LONDON. FOREIGN, NAPOLEONIC, LONDON. OUR REF. CHB/IR YOUR REF. 22nd December 1937. W. A.{Mr Adams} Robotham Esq., Messrs. Rolls Royce Ltd., Experimental Dept., DERBY. [Stamped text across body of letter]: TIN-SIZED Dear Mr. Robotham, I have posted to you, under separate cover, one half of the pair of aluminium bearings which you handed to me on the occasion of my recent visit, and which, you will remember, you asked us to make an attempt to tin coat. We find that the process which we have laid down for pistons was not at all suitable for the material of the bearing, but experimental work on strips cut from the other half have enabled us to determine the modifications necessary, and as far as we can see, the coating on the portion we have sent you compares with that which we obtain on pistons. The black spots are caused by gas bubbles where the action has been inhibited due to the adherence of the bubbles at those particular places. If the result in any way conforms to what you anticipate, we shall be pleased to carry out the process on a set of unused bearings any time you care to let us have them. Yours sincerely, C.N.Brooks. | ||