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. regarding piston regrinding, tin-coating, and ring scuffing.
| Identifier | ExFiles\Box 148\3\ scan0334 | |
| Date | 4th May 1938 | |
| TELEPHONE: VICTORIA 0671 (6 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. THE LIGHT PRODUCTION CO. LTD PROPRIETORS OF THE LONDON PISTON RING CO. LIMITED. CHAIRMAN & MANAGING DIRECTOR: M.V. ROBERTS. DIRECTORS: E.G. DAVIES. WM. THISTLE. ENGINEERS TELEGRAMS: INLAND, NAPOLEONIC, SOWEST, LONDON. FOREIGN, NAPOLEONIC, LONDON. 60/66, ROCHESTER ROW, WESTMINSTER, S.W.1 WORKS AND GOODS ADDRESS: 61/67, GREENCOAT PLACE, WESTMINSTER, S.W.1. OUR REF. CHB/DP YOUR REF. Rm{William Robotham - Chief Engineer}/MTHS{Reg Matthews} 10/JH. Messrs Rolls-Royce Ltd., Experimental Dept., DERBY. 4th May, 1938. 1256 For the attention of Mr. Matthews. Dear Sirs, Referring to your communication of the 2nd instant, your pistons have duly arrived, and we are proceeding with the regrinding to our No.12 form. We are presuming that you do not require the major axis interfered with and we are arranging the regrinding accordingly. We are tin-coating them and returning them together with the set of standard Bentley pistons, tin-coated as requested. With regard to the Ferrox process, we are still without precise information as to what the process is, but our agents are contacting with the Perfect Circle people with a view to obtaining the necessary details. At the present time, however, the problem of ring scuffing is being approached by two distinct lines of attack, which are quite the opposite of each other in principal. The one is this Surface Change by means of Oxidation or some such kindred process which results in a thin amorphous layer, which is permitted to break down, by whose particles are so small in relation to the but | ||