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 specifications and drawings.
| Identifier | ExFiles\Box 148\1\ scan0128 | |
| Date | 1st May 1939 | |
| TELEPHONE: VICTORIA 0671 (6 LINES). CODES: A.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.W. 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, GRECOAT PLACE, WESTMINSTER, S.W.1. OUR REF. CHB/DP YOUR REF. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}11/JH. 1st May, 1939. Messrs. Rolls Royce Ltd., Experimental Dept., DERBY. Dear Sirs, For the attention of Mr. C.T. Salt. In reply to your communication of the 26th ultimo regarding Piston EW.2170 with the raised crown having a dimension of .360", will you please note that our number for the castings for this type would be Z.15, and our drawing number P.466. Reference to this latter number only is sufficient to identify the design. This reduced crown height can be obtained from the foundry equipment necessary for EW.2170, (our reference P.465), and as soon as we have sufficient satisfactory castings for EW.2170, we will make the necessary modifications and proceed. Your official order No. 91973 covering this work has already come to hand, for which please accept our best thanks. Yours faithfully, FOR THE LIGHT PRODUCTION CO.LTD. [Signature] GENERAL MANAGER. | ||