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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).
Parts list for a Bentley Ventilated Dynamo, detailing components for the Armature, Bearing Brackets, and Commutator.

Identifier  ExFiles\Box 168a\3\  img139
Date  28th January 1935
  
C.H/Mat. 6142 BY/RD1/W.28.1.35.

BENTLEY VENTILATED DYNAMO.
B.P.L.C.H & Co. Ltd.

Will you please put in hand one Dynamo to the following particulars :-

Sec.8070. Armature :-

DB.{Donald Bastow - Suspensions} 902. Armature Assembly 1 off.
D.73335. Armature Coil. 1 off.
D.73332. Coil Separator. 1 off.
x DB.{Donald Bastow - Suspensions} 921. Fan. 1 off.
x DB.{Donald Bastow - Suspensions} 922. Coupling Spider. 1 off.
D.54583. Stud for Fan. 3 off.
D.{John DeLooze - Company Secretary} 1189. Nut for Fan. 3 off.
D.{John DeLooze - Company Secretary} 1190. Lock Washer. 3 off.
E.19084. Nut. 3 off.
E.81294. Pin, Coupling. 3 off.
K.{Mr Kilner} 4602. Split Pin. 3 off.
17 S.W.G. Copper Wire. 2 lbs. 10 oz.

The remainder of the material for the Armature should be to the standard L.O.P. DB.{Donald Bastow - Suspensions}230, with the exception of the copper wire to make the coils.

Sec.8080. Bearing Brackets.etc. :-

DB.{Donald Bastow - Suspensions} 884. End Cover. 1 off.
DB.{Donald Bastow - Suspensions} 885. Frame for Gauze. 2 off.
DB.{Donald Bastow - Suspensions} 886. Frame for Gauze. 1 off.
DB.{Donald Bastow - Suspensions} 887. Gauze. 2 off.
DB.{Donald Bastow - Suspensions} 888. Gauze. 1 off.
DB.{Donald Bastow - Suspensions} 889. Cover Insulation. 2 off.
E.74586. Rivet. 18 off.
x DB.{Donald Bastow - Suspensions} 923. Bearing Bracket P.E. 1 off.
x DB.{Donald Bastow - Suspensions} 924. Cover for Ball Bearing. 1 off.
D.73540. Countersunk Screw. 3 off.
Rotherham Winkley Lubricator No.1. } 1 off.
1/4 x 26 T.P.I. R.H. }
DB.{Donald Bastow - Suspensions} 890. Assembly of Cover and Gauze.

All other pieces for this section can be obtained from production to L.O.P. DB.{Donald Bastow - Suspensions}228.

Sec.8090. Commutator.

STANDARD.

(Contd :-
  
  


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