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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).
Asking for test results on Delage springs and correcting the pitch angle on a worm helix.

Identifier  ExFiles\Box 21\4\  Scan134
Date  26th January 1923
  
To Hs.{Lord Ernest Hives - Chair} from Da.{Bernard Day - Chassis Design}

X/3525

Da{Bernard Day - Chassis Design}2/M26.1.23.

X.3525
X.2628

We meant to have asked you yesterday whether you hadhad any results from weakening the Delage springs, and testing for the effect of shocks.

We have looked into the particulars of the worm and sector, and we cannot find that it differs very much from the 40/50, though it is true that there is a little more friction in the worm.

We might point out that we think the pitch angle of the helix given on your label of particulars of the worm is incorrect, and should be 13° not 17°.

Da.{Bernard Day - Chassis Design}

[Faint stamp: 1804]
[Faint stamp: MADE AT CROXLEY]
  
  


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