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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).
Revised drawing for the epicyclic third gearbox, noting a change in the joint's position.

Identifier  ExFiles\Box 15\5\  Scan164
Date  25th October 1930
  
BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design}
C. to SG.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair}
X7310
DA{Bernard Day - Chassis Design}1/M25.10.30.
EPICYCLIC THIRD GEARBOX
REVISED.
X.523.
X.7310.
X.5310.
Herewith we send N. sch. 3156 shewing the actuation of the gears in the three speed box. It also shews the servo and speedometer drives. We think the drawing is self explanatory and only wish to draw your attention to the fact that the joint between the front and back parts of the gearbox has been moved forward a small amount.
Would you please send us a print by return.
We may say that the last two drawings - N.schemes 3150/51 - despatched to you on Friday the 17th. inst., prints were only received this morning, causing us great inconvenience.
DA.{Bernard Day - Chassis Design}
  
  


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