Improvement in Rotary Engines.
Description:
Patent for rotary engines "driven by steam or other elastic agent, or which may be used for pumping water" (lines 29-32) to obtain "a more direct application of the force applied to drive the engine" (lines 39-40) including instructions and illustrations.
Date:
February 6, 1872
Creator:
Richardson, John Dun
Item Type:
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Partner:
UNT Libraries Government Documents Department