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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).
Instructions regarding re-moulded commutators for G II dynamos using various powders.

Identifier  ExFiles\Box 50\5\  Scan077
Date  19th June 1922
  
RR'238 (300 Bks.) (SF 152. 6-11-18.) MP 197880
ROLLS-ROYCE LIMITED.
INSTRUCTIONS.
To: Wor. {Arthur Wormald - General Works Manager}
Order No: X.4333.
Customer's No.
Re Moulded Commutators for G II Dynamos
I have recently supplied EFC. {E. Fowler Clarke - Electrical Engineer} with seven viz. 2 moulded with ordinary 'ELO' powder, 2 with Elo asbestos filled powder, 2 with Mouldensite Powder, 1 with ordinary Bakelite (american) powder. On all these the copper segments have been modified also the mica separators. EFC. {E. Fowler Clarke - Electrical Engineer} is going to give these a prolonged test for speed.
Signed: E J Brock
This Sheet must be filed on completion of the work.
  
  


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