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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 Tyre & Rubber Co. Ltd. confirming a request for a sketch of a mould for oil sealing rings.

Identifier  ExFiles\Box 158\2\  scan0060
Date  23th December 1940
  
EXPERIMENTAL DEPARTMENT
23rd December 1940. 1339
Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby}1/ET.
British Tyre & Rubber Co. Ltd.,
BURTON-on-TRENT.
Attention of Mr. Birkbeck.
Dear Sirs,
This is to confirm that you will send us your suggestions accompanied by a sketch of the type of mould required to make oil sealing rings similar to those originally made by you from our mandrel.
We shall do the necessary detailing and get the mould made immediately on receipt of your recommendations.
Yours faithfully,
  
  


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