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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).
Continued report page discussing the design of Watford EW6 magneto pole pieces and comparing them to Bosch.

Identifier  ExFiles\Box 65\3\  scan0309
Date  20th August 1928 guessed
  
-3- Contd.

The Watford EW6. magneto pole pieces are only stepped on the trailing edge, as in sketch :-

Another point is that the core section of the Bosch is more nearly circular than the Watford, i.e. neared to the condition of least periphery for a given area.

We are sending a copy of this report to Mr. North of the Watford Company.


EFC.


WD.{Mr Wood/Mr Whitehead}5. attached.
  
  


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