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).
Graph comparing pressure rise against time for two different sized Herzmark single-stage air compressors.

Identifier  WestWitteringFiles\W\September1931-November1931\  Scan026
Date  30th September 1931
  
DATE: 30-9-31
BAR: 30.31" HG
AIR TEMP: 17°C
RPM: 1125
AIR BOTTLE VOLUME: .413 CU. FT.
PRESSURE [LBS/D"]
LARGE [BORE ? STROKE 1.18"]
SMALL [BORE .865" STROKE 1.094" = .645 cu in]
HERZMARK
SINGLE STAGE AIR COMPRESSOR
SHOWING
PRESSURE RISE WHEN CHARGING BOTTLES
TIME [MINUTES]
F.J.A 2-10-31
  
  


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