Image: Chapin Mine Pump 1891
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Description: Chapin Mine Pump, constructed by EP Allis Co in 1891
Title: Chapin Mine Pump 1891
Credit: Duty tests of pumping engines, and reprint of Dr. R.H. Thurston's paper on The maximum contemporary economy of the high-pressure multiple-expansion steam engine
Author: Edward P. Allis Co, Robert Henry Thurston
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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