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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).
Proposals for rear brake drum covers on 20 HP & 40/50 HP chassis to prevent noise from trapped stones.

Identifier  ExFiles\Box 5\3\  03-page174
Date  7th August 1925
  
BY/FWH [Strikethrough]
c. Hs.{Lord Ernest Hives - Chair}

15360

BY15/H.{Arthur M. Hanbury - Head Complaints} 7.8.25.

15360 [Strikethrough]
18360 [Strikethrough]

20 HP & 40/50 HP. CHASSIS. REAR BRAKE DRUM COVER.

I am handing you herewith N.Scheme 2038 and 2039 showing proposals which have been put forward to overcome the complaint which we have from customers in regard to small stones getting between the cover and the brake drum itself, setting up a squawking noise which is most disagreeable.

Will you kindly detail the two schemes and issue them experimentally only.

BY.{R.W. Bailey - Chief Engineer}
  
  


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