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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).
Report discussing the pros and cons of thin versus thick leaf springs, lubrication, friction, and potential complaints.

Identifier  ExFiles\Box 78\2\  scan0348
Date  10th October 1921
  
Contd. -4- Hs{Lord Ernest Hives - Chair}4/LG7.10.21.
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be overcome with thin leaf springs. If we fit thin leaf spring
and do not provide gaiters to lubricate them, we are going to
get them rusted up solid and are going to get complaints of
excess of friction. If we fit thin leaf springs, and gaiters
are fitted to lubricate them, we might just as well have thick
leaf springs. Our recommendation is that we should strive for
the ideal springing - springs with constant friction and friction
dampers added so that the amount of friction can be adjusted.
Until, however, we reach that ideal, we have got to expect that we
shall have a certain percentage of complaints in the springing
of the cars which will need special treatment. In some cases
it will mean shock absorbers of the 4-stage, 2-stage and single-
stage type. In other cases it will means thick leaf springs
changed to thin.

As regards the thick leaf springs squeaking, we think
this should be dealt with as a separate complaint. The squeak-
ing can be overcome by the leaves being lubricated.

This report has been agreed to by EP.{G. Eric Platford - Chief Quality Engineer} and Hm.{Capt. W. Hallam - Head Repairs} Any
points in connection with the 40/50 H.P. Springing, EP.{G. Eric Platford - Chief Quality Engineer} and Hs{Lord Ernest Hives - Chair}
could discuss with R.{Sir Henry Royce} when we meet him in Norfolk.


MADE AT CROXLEY


Hs.{Lord Ernest Hives - Chair}
  
  


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