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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).
Results from testing Delage springs and correcting the pitch angle on a worm gear.

Identifier  ExFiles\Box 54\3\  Scan096
Date  26th January 1923
  
To Hs.{Lord Ernest Hives - Chair} from Da.{Bernard Day - Chassis Design}

X2628
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 13º not 17º.

1304

MADE AT CROXLEY

Da.{Bernard Day - Chassis Design}
  
  


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