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).
Using a diaphragm to protect the starter motor and a subsequent change to the chassis wiring scheme.

Identifier  ExFiles\Box 168b\2\  img239
Date  2nd August 1932
  
-2-
He/Wst.1/AUG.2.32 contd.

The diaphragm might also be additionally utilised to break the teaser circuit of the starter motor in order to prevent possible damage should the starter button be inadvertently pressed while the engine is running.

With this scheme the conduit system of wiring on our chassis will be unnecessary as the wire circuits themselves will be protected.

He/Wst.

Print attached.
  
  


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