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 Borg & Beck Company Ltd regarding corrected calculations for clutch assemblies.
Identifier | ExFiles\Box 130\3\ scan0041 | |
Date | 28th December 1938 | |
Telegrams BORGANBECK, LEAMINGTON SPA. Telephone LEAMINGTON SPA 1550-1. BORG & BECK COMPANY LTD MANUFACTURERS OF CLUTCHES. Registered Office BROCK HOUSE, LANGHAM STREET, LONDON, W. 1. WORKS: Tachbrook Road. LEAMINGTON SPA, Warwickshire. Directors E.{Mr Elliott - Chief Engineer} B. BOUGHTON. W. EMMOTT. D.{John DeLooze - Company Secretary} T. BROCK. Your Ref: Rm{William Robotham - Chief Engineer}/NRC{N. R. Chandler}/10/JH. Experimental Dept. Our Ref: TS/AMS/LP.{Mr Lappin} 28th December 1938. Messrs. Rolls-Royce Ltd., DERBY. For the attention of Mr. N. R.{Sir Henry Royce} Chandler. Dear Sirs, Re Long C.F. Clutches. We have to acknowledge receipt of your esteemed letter of the 23rd instant and remarks have been carefully noted with regard to pressures require to disengage both the 10" and 11" Long C.F. Clutches at bearing. Our Designs Department have re-checked calculations and we must apologise for the fact that Recommendation Sheets submitted to you for these assemblies to specification BB.460 and BB.471, have incorrect pressures inserted. Correct figures should be, 10" 250/270-lbs, 11" 235/250-lbs, approximating calculations shown your letter. We indeed thank you for drawing this matter to our attention. Yours faithfully, BORG & BECK COMPANY LIMITED. A.M. Shinkins, Sales Department. [Handwritten notes] Top right: fil 1110 Bottom left: 10" Long Orange BB 460 dated 17-3-38 11 BB 471 dated 9-5-38 -" Long L. Blue Specification Corrected WRP 2/1/39 Bottom right: 10" Long Orange 125-135 = 1170 11" L. Blue 110-120 = 1035 | ||