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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).
'Japan' improvements to the 20 HP clutch, including a new damping plate and washer adjustment.

Identifier  ExFiles\Box 5\6\  06-page056
Date  1st October 1929
  
COPY. X5300

BY.{R.W. Bailey - Chief Engineer} From OA.
M.1/1.10.29.

c. to Sz. Hs.{Lord Ernest Hives - Chair}
20 HP. CLUTCH.
X.5300
X.3409

We send herewith M.Sch.2957, shewing some of the present 'Japan' improvements in the clutch applied to the present standard, that is to say, the Ferodo is riveted on the driven member, and the Phantom damping plate is employed instead of the twisted driven plate. We have also incorporated the washer adjustment instead of the existing lock nut.

This should be put in hand experimentally immediately, as R.{Sir Henry Royce} wishes to standardise this at the same time as the long frame.

OA.
  
  


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