Rolls-Royce Archives
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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).
Blueprint of a pipe fitted with a resonance chamber and a top hat type baffle for a silencer.

Identifier  ExFiles\Box 169\3\  img086
Date  8th December 1932 guessed
  
Hs.{Lord Ernest Hives - Chair} 766
PIPE FITTED WITH RESONANCE CHAMBER TO RR SCH: 293
TO BE DETACHABLE
SWAN NECK
FLANGE
47.5
DRILLED 80 HOLES
DIAM
6.00"
8.00"
TOP HAT TYPE BAFFLE
4.00 DIA
DRILLED 88 HOLES .250 DIA.
8 ROWS OF HOLES
ROWS ARE .500" APART
BAFFLE FITTED SO THAT THE HOLES ARE OPPOSITE SWAN NECK OUTLET I.E. AT BOTTOM OF SILENCER
  
  


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