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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).
Blueprints, parts, and testing instructions for a Sequence Starter and Epicyclic Gear.

Identifier  ExFiles\Box 64\3\  scan0095
Date  29th September 1926
  
X7650
C. EFC.
BY/RD/ML.29.9.26.

RE E.A.C. V11 - SEQUENCE STARTER.

EPICYCLIC GEAR - SEC:8040.

Please receive herewith blueprints of the new parts required to carry out the instructions contained in R1/AD.9.26. -

D.71208 - Spigot.
D.71209 - Locking Washer.
D.71211 - Outer Bearing.
D.71212 - Inner "
D.71213 - Nut.
D.71214 - Locking Wire.
D.71215 - Cush Driving Piece.
D.71216 - Planet Wheel Carrier.
+ D.71217 - Driving Shaft } 20° spiral.
+ D.71218 - Starting Pinion)
+ D.71219 - Driving Shaft } 5° "
+ D.71220 - Starting Pinion)
D.71221 - L.O.P. Epicyclic Gear.

+ Alternatives.

The remaining parts called for on the L.O.P. have previously been instructed and made.

Referring to the testing of these alterative angles of threads different Actuator Boxes should be used thus -

With D.71217/8 - 20° angle, Actuator Box to L.O.P. D.71087 using the Main Circuit Switch.

With D.71219/20 - 5° angle, Actuator Box to L.O.P. D.70514 (wound with 17 gauge wire) which will not require the Main Circuit Switch to be used, but will need the Packing Washer - D.71210 (prints herewith) to get it into the correct position.

Will you please put one set in hand.

HEW

BY/RD.
  
  


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