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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 Light Production Co. Ltd. regarding the elliptical grinding and machining of 7 light pistons.

Identifier  ExFiles\Box 148\1\  scan0291
Date  25th November 1940
  
1256
Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}1/ET.
EXPERIMENTAL DEPARTMENT
25th November, 1940.
The Light Production Co. Ltd.,
68, Liverpool Road,
Trading Estate,
S L O U G H, Bucks.
Attention Mr. W.P. Riley.
Your reference WPR/BKW.
Dear Sirs,
We thank you for your letter dated 19th November.
With reference to the 7 light pistons you are producing, will you please complete the machining on these. The grinding, we understand, will be elliptical, using the same cam as for the latest "Aero-lite".
We wish to revert to this procedure, as we have no machining capacity in our factory at the present time, available for chassis work.
Yours faithfully,
  
  


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