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 discussing the results of tests on brake servo linings made from F.F.1 material.
| Identifier | ExFiles\Box 141\1\ scan0035 | |
| Date | 7th May 1935 | |
| Telegrams BORGANBECK, LEAMINGTON SPA. Telephone LEAMINGTON SPA 1550-1. F.J. Hardy - X3409 BORG & BECK COMPANY LTD MANUFACTURERS OF CLUTCHES. Registered Office BROOK HOUSE, LANGHAM STREET, LONDON, W.1. WORKS: Tachbrook Road, LEAMINGTON SPA, Warwickshire. Directors F.{Mr Friese} B. BOUGHTON. W. EMMOTT. D.{John DeLooze - Company Secretary} T. BROCK. Your Ref Hs{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer}20/KW Our Ref TS/HTB/EA 7th May, 1935. Messrs. Rolls-Royce Ltd., DERBY. Attention: Mr. F.{Mr Friese} J.{Mr Johnson W.M.} Hardy. Dear Sirs, re Brake Servo Linings We beg to acknowledge receipt of your letter of the 1st inst., and have duly noted your remarks in connection with the tests which you have carried on the servo linings made up in F.F.1 material recently submitted by us. Whilst in view of the extensive experience which you have no doubt gained in connection with friction materials in conjunction with the application under discussion we hesitate to pursue this matter further, at the same time feel that we cannot quite agree with your remarks that no useful purpose would be served in carrying out further experiments. We are confident, from extensive tests carried out by The Borg & Beck Company of America, and also ourselves, that the F.F.1 material does not fade under severe conditions which are likely to be met in everyday practice, providing a sufficiently high temperature has been reached initially in order to drive off the volatiles remaining in the makeup of the material. In fact, as we believe we previously mentioned, the final curing of the material takes place under actual operating conditions. We therefore trust you will agree to carry out further tests with the samples previously submitted and at the same time if we can be of further assistance to you please do not hesitate to call upon us. Yours faithfully, BORG & BECK COMPANY LIMITED H.{Arthur M. Hanbury - Head Complaints} T. Barker | ||