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Higher output dynamo for a 12-EX machine, detailing parts required and modifications.


Identifier  ExFiles\Box 68\4\  scan0110
Date  13th September 1928
  
X8664
C. EFC. {E. Fowler Clarke - Electrical Engineer}
BY {R.W. Bailey - Chief Engineer} /RD7/ML13.9.28.

DYNAMO FOR 12-EX.
HIGHER OUTPUT MACHINE.

The higher output armature has now been tested in the Experimental rig and it is proposed to put this on to the 12-EX car, in order to do this a complete machine is required and a set of present standard parts should be obtained to the following LOPs:-

D.71049 - Bearing Brackets etc. (Sec:8080).
D.70191 - Field Winding. (Sec:8100).

The standard commutator end bracket D.71250.DC will require the two holes for the control brush holder plugging up and re-drilling to the new print D.71718.DC. sent herewith.

The foregoing together with the armature and commutator D.71618 which EFC. {E. Fowler Clarke - Electrical Engineer} has, will complete the machine.

If casting D.71250.DC could be got from the Works undrilled it would save the plugging operation, but I understand this machine is urgently required.

BY {R.W. Bailey - Chief Engineer} /RD.
  
  
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).


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