Rolls-Royce Archives
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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).
Diagram and description of an umbrella rotor's air circulation function.

Identifier  ExFiles\Box 61b\1\  scan0011
Date  25th January 1927 guessed
  
-3- Contd.

This umbrella rotor looks more like a scheme than an accident made with the object of keeping up a circulation of pure air around the make and break, any gas formed at the H.T. points being carried away without mixing into the air below.

E.{Mr Elliott - Chief Engineer}
  
  


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