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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 to The British Thermostat Co. Ltd. concerning the fitting of a thermostat, water pump and potential parts interchangeability issues.

Identifier  ExFiles\Box 156\2\  scan0283
Date  12th March 1940
  
File Thorndike
1328.

Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}4/CH.12.3.40.
12th March 1940.

The British Thermostat Co. Ltd.,
Teddington Works,
Windmill Road,
Sunbury on Thames,
Middlesex.

Dear Mr. Martin Hurst,

Further to your recent 'phone call, I have looked into the job in question and we are sending the necessary parts to Mr. Bellringer in London. I have requested also, him to let you know if the charge is likely to be more than £5. 0. 0d.

I am very much afraid that it will be necessary to fit yet another water pump cover, as the modifications which enable a heater to be fitted do not also allow fitting a thermostat by-pass pipe.

The only other possible snag is the fitting of the top water pipe, which as I said before may require a special moulded hose. I have been in touch with our Repair Department, but unfortunately there are no cars in a condition, and no "M" series cars - the first to be fitted with a thermostat - have yet come in. You will appreciate my point, therefore, that it is extremely difficult to obtain accurate information regarding the interchangeability of parts.

- continued -
  
  


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