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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 The British Thermostat Co. Ltd. regarding a thermostatically operated relief valve for an experimental Bentley car.

Identifier  ExFiles\Box 156\2\  scan0218
Date  19th April 1939
  
1328.

Telephone:
SUNBURY-ON-THAMES 456 (6 LINES)

Telegrams & Cables:
THERMOSTAT, SUNBURY-ON-THAMES.
Code: BENTLEY'S

THE BRITISH THERMOSTAT CO., LTD.
Makers of Scientific Instruments.

FEDERATION OF BRITISH INDUSTRIES
INCORPORATED BY ROYAL CHARTER

MEMBERS OF THE NATIONAL UNION OF MANUFACTURERS

DIRECTORS:
COL. N. HUDSON.
J.{Mr Johnson W.M.} E.{Mr Elliott - Chief Engineer} SHERLOCK } MANAGING.
W. F.{Mr Friese} MARTIN HURST
F.{Mr Friese} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} POPLETT.
F.{Mr Friese} PARMENTER.

TEDDINGTON WORKS. Windmill Road, Sunbury-on-Thames, Middlesex.

ON A.I.D. AIR MINISTRY APPROVED LIST.

KMP/GN:
April 19th, 1939.

Messrs. Rolls-Royce Ltd.
DERBY.

Dear Sirs,
For the attention of Mr. F.J. Hardy.

With reference to the writer's recent visit to your Works and the conversation he had with you regarding the thermostatically operated Relief Valve required for pressure cooling on an experimental Bentley Car, we enclose herewith our Drawing No.11295 showing our suggested layout.

This instrument now embodies exactly the same principles as the valve at present in use on aircraft.

Yours truly,
THE BRITISH THERMOSTAT CO. LTD.

K.M. Petter.
K.M.Petter.

ENCL:
Drawing No. 11295.
  
  


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