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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).
Confirming modifications to the 'SS' cutout control, including the silencer position, intermediate lever, and heat shield.

Identifier  ExFiles\Box 14\6\  Scan077
Date  17th April 1929
  
X7230
BY.{R.W. Bailey - Chief Engineer} from DA.{Bernard Day - Chassis Design}
c. to Hs.{Lord Ernest Hives - Chair}
DA{Bernard Day - Chassis Design}2/M17. 4. 29.
'SS{S. Smith}' CUTOUT CONTROL.
X7230
+7490
We have despatched to you N.sch. 2878 shewing the revised cutout control to suit the 3" cross member with straight edns. This letter is in confirmation.
We have slightly modified the position of the silencer, increasing the slope, which modifies the front support. This intermediate lever is used on both right and left hand chassis, and covers your enquiry with reference to this point, the difference being in the length of the shaft.
The heat shield is in a slightly lower position than previously.
DA.{Bernard Day - Chassis Design}
  
  


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