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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).
Oil retention in the torque tube, proposing design changes including a die-cast aluminium partition.

Identifier  WestWitteringFiles\C\September1919\  Scan4
Date  1st September 1919
  
To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer}

-3-

E2/G2/9/19 Contd.

diameter and be fed by the taper into the universal - see sketch -

This oil is prevented from escaping into the torque tube proper by means of a coarse oil retaining thread on the outside of the female portion of the universal. As this thread will be directly opposite to the universal it occupies the best position for being concentric. The thread operates inside an aluminium partition secured in some suitable manner within the flanged front piece of the torque tube.
Drain holes should be provided to retransfer the oil to the gear box, these drain holes being lower than those shewn, if possible, on the scheme of the gear box Lec.1643.
Regarding the aluminium partition, Mr. Royce thinks this should be a die casting, and that it might be fixed by riveting into the taper bore of the torque tube, as in sketch above.

Would you kindly submit a new scheme embodying the foregoing points.

E.{Mr Elliott - Chief Engineer}
  
  


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