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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).
Proposal for new brake shoes with pivoted ends to prevent squeaks.

Identifier  ExFiles\Box 12\5\  05-page232
Date  4th December 1930
  
BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design}
C. to SG.{Arthur F. Sidgreaves - MD} HS{Lord Ernest Hives - Chair}
X1930
DA{Bernard Day - Chassis Design}1/M4.12.30.
P. 2. BRAKE GEAR.
Herewith we send N. sch. 3182. shewing the proposed brake shoes with pivoted ends for the purpose of preventing squeaks. They go on to the present brake anchorage, and the operating gear is unaltered.
we are not certain of the exact quantities, that is to say, the force of the spring, and the length of the supplementary shoes. we believe that Derby have some experience of these.
DA.{Bernard Day - Chassis Design}
  
  


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