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 Ferodo Limited discussing the characteristics and patent of their asbestos friction linings.
| Identifier | ExFiles\Box 26\4\ Scan215 | |
| Date | 5th January 1924 | |
| X347 X719 FERODO LIMITED. TELEGRAMS: "FRICTION, CHAPEL-EN-LE-FRITH". REG'D TRADE MARK. TELEPHONES: 19 & 20 CHAPEL-EN-LE-FRITH. (2 LINES) CODES:- 5TH EDITION A.B.C. LIEBER'S. MARCONI INTERNATIONAL. WESTERN UNION FIVE LETTER EDL. Depots. LONDON 222, TOTTENHAM COURT ROAD, W.1. BIRMINGHAM 202, CORPORATION STREET. MANCHESTER 28, CATHEDRAL STREET. BRISTOL 19, PARK STREET. BELFAST 168, NORTH STREET. LEEDS 25, HUNSLET ROAD. MESSRS T.S.ARMSTRONG & CO LTD NEWCASTLE ON TYNE, WORSWICK STREET, PILGRIM STREET. MESSRS HART, OSWALD LIMITED. GLASGOW, 39, BOTHWELL STREET. MESSRS HASLAM & STRETTON LTD CARDIFF. 11, WINDSOR PLACE. MESSRS HASLAM & STRETTON LTD SWANSEA, 33, ST HELENS ROAD. L'DONNELL & FERODO LTD LIVERPOOL, 1-3 BERRY ST SOUTHRON BUILDINGS, WATER ST MR A.J. CRESWICK. SHEFFIELD. GATEFIELD. MESSRS F.W. HARRIS & CO STOKE ON TRENT, MOORLAND ROAD BURSLEM. MR SIDNEY HILL COVENTRY. GODIVA STREET. FERODO FRICTION LININGS. Reg'd Office & Works. SOVEREIGN MILLS, CHAPEL-EN-LE-FRITH, ENGLAND. PLEASE ADDRESS YOUR REPLY. DEPT. REF. FJF/DHL YOUR REF. Hs{Lord Ernest Hives - Chair}2/LG. 5th January, 1924 (Saturday) Messrs Rolls-Royce Limited, Nightingale Road, DERBY. Dear Sirs, We duly received your letter of the 1st inst., and are interested in your report of the material you mention. We quite appreciate the absence of squeaking with this class of lining, since nearly all materials, very hard in character with a low friction value, are invariably silent when other fabrics having a higher coefficient of friction may, under certain conditions, produce a momentary squeak. We know the material quite well, in fact, we originated and patented it. What you are referring to is merely a copy of our Ferobestos and it is a direct infringement of our patent. There is a small difference in making it up, as ours is either made of disintegrated asbestos fibre or woven material, bonded with an insoluble ingredient; theirs is made up by wrapping asbestos yarn round a mandrel and fixing it with exactly the same type of material we were the first to use and to patent the use of. It is perfectly safe to say that it has nothing like the wearing qualities of Ferobestos; under exactly the same conditions of work our lining would shew as much as three to 1 difference in our favour, and if you have found it reasonably good, you would get entire satisfaction from Ferobestos. You have, of course, had considerable quantities of this class of lining for your cars, but we understand, for various reasons which are not quite clear to us, that you abandoned its use in favour of our die-pressed Ferodo Bonded Asbestos. Where scoring of drums occurs we invariably offer Ferobestos as a specific cure, but these cases are WE ARE EXHIBITING AT THE SCOTTISH MOTOR SHOW 1924 KELVIN HALL JAN 25 GLASGOW to FEB 2 | ||