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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 brake lining manufacturer Ferodo regarding testing linings for a customer's Bentley.

Identifier  ExFiles\Box 141\2\  scan0280
Date  29th March 1939
  
1180
All Communications to be addressed to the Company.

FERODO LIMITED
BRAKE & CLUTCH LININGS
CHAPEL-EN-LE-FRITH,
STOCKPORT, ENGLAND.

TELEPHONE: 250 CHAPEL-EN-LE-FRITH
TELEGRAMS: FRICTION, PHONE, CHAPEL-EN-LE-FRITH.

CODES: WESTERN UNION FIVE LETTER EDITION, BENTLEYS COMPLETE & 2ND PHRASE, MARCONI INTERNATIONAL, LIEBER'S CODE, LIEBER'S LATEST CODE, A.B.C. 5TH & 6TH EDITIONS.

Depots-
LONDON
222, TOTTENHAM COURT RD W. 1.

ABERDEEN
26, GUILD STREET.

BELFAST
8, 10 & 12, MONTGOMERY ST

BIRMINGHAM
198, CORPORATION ST

BRISTOL
118, VICTORIA STREET.

CARDIFF
60, CHARLES ST

DUBLIN
120, UPPER ABBEY ST

GLASGOW
70, WATERLOO ST

LEEDS
25, HUNSLET RD

LIVERPOOL
BERRY STREET.

MANCHESTER
16, JACKSON'S ROW, DEANSGATE.

NEWCASTLE-ON-TYNE
24, ELDON PLACE, BARRAS BRIDGE.

29th March, 1939

YOUR REF.
OUR REF. WES/PW.

Messrs. Rolls-Royce Ltd.,
Derby.

For the attention of Mr. Dixon.

Dear Sirs,

We would confirm mentioning to you yesterday that Mr. R.H. Turner, who is a director of Messrs. Turner & Newall Ltd., possesses a 1937 Phantom Three Rolls-Royce and a Bentley - chassis No. B.134CR{Mr Cra???ster / Mr Chichester} - which he believes is about a 1935 model.

During Mr. Turner's visit to this factory yesterday, he was very interested in the test rig we were running and he is anxious to fit the Bentley with the type or combination of types of Ferodo linings which give the best non-squeal characteristics. He would, of course, send the car to your Works for the fitting of the linings. We decided yesterday that you would investigate the history of this car before making any recommendation, and no doubt the above chassis number will enable you to do this.

With regard to the records which you took away with you, there was unfortunately insufficient time to examine the coefficient of friction curves which we obtain from various materials on our standard test machine and we are therefore enclosing copies of these diagrams. We believe they cover practically every type of material which you have tested on brakes.

In the meantime we will map out a programme on the lines suggested, concentrating on keeping a given pair of samples on the rig for, say, a fortnight at a time and carrying out a total of one hour's running per day. This should give us a lead on the changing characteristics of the linings as wear takes place.

Yours faithfully,
FERODO LIMITED.

W.E.Skilton
Manager,
Development & Technical Department.
  
  


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