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Request to prepare simple drawings for various dynamo and motor armature slots.


Identifier  ExFiles\Box 68\4\  scan0233
Date  22th May 1925
  
X1640

To BY {R.W. Bailey - Chief Engineer} /RD. from EFC. {E. Fowler Clarke - Electrical Engineer}

EFC {E. Fowler Clarke - Electrical Engineer} 1/T22.5.25.

RE DYNAMO AND MOTOR ARMATURE SLOTS

Would you kindly have prepared for this Dept.
two simple drawings, one for dynamos and one for motors,
showing one armature tooth and two armature slots (one
filled) for, in the dynamo case, each of the following:-

(a) 20 HP. dynamo. 29 slots.
(b) " Expl. 19 slots.
(c) EAC. dynamo. 39 slots.

and in the motor case

(1) 40/50 motor. 45 slots.
(2) 20 HP. " 29 slots.
(3) EAC. motor. 41 slots.

These would replace the armature assembly
drawings and would be more convenient for our purpose.

Scale 10 to 1.

EFC. {E. Fowler Clarke - Electrical Engineer}
  
  
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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