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 piston manufacturer Specialloid Limited regarding the design and performance of their pistons.
| Identifier | ExFiles\Box 148\4\ scan0286 | |
| Date | 22th September 1934 | |
| ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY 26934. ON AIR MINISTRY LIST Specialloid LIMITED Metallurgists · Engineers · Founders Friern Park · North Finchley · N·12 SOLE MANUFACTURERS OF Specialloid PISTONS CHAIRMAN: J H PLATFORD MANAGING DIRECTOR: H N BATES A.M.I.A.E. OUR REF LPO/SAW. YOUR REF TELEPHONES: HILLSIDE 2233 5 LINES TELEGRAMS: 'SPECIALLOID·LONDON' LOGO: THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS LTD CODES: MARCONI A.B.C. 6TH EDITION BENTLEY'S DATE 22nd September, 1934. Messrs. Rolls Royce Ltd., DERBY. FOR THE ATTENTION OF MR. W. A.{Mr Adams} ROBOTHAM Dear Sir, SPECIALLOID PISTONS. In previous correspondence and at the interview kindly accorded our Mr. McConnell we introduced briefly the Specialloid Piston and we now wish to submit more detailed particulars in relation to design, manufacture and performance which we feel sure will be of interest and worthy of your consideration. We have already received a copy of your Piston Drawing Part No. E.B.1025 and within the course of the next few posts we shall pass a print of our preliminary design for your perusal. In the meantime we shall concern this correspondence with the more general points of our design which will explain why our product is recognised as the most efficient on the market by the leading commercial and motor car engine manufacturers. DESIGN: The main characteristics of the successful Piston are:- 1) Rigidity in construction under working conditions, controlling distortion and protecting the highly stressed sections of the Piston. This means the Piston will maintain to all practical | ||