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Rotary Engine.
Patent for improvements in rotary engines by proving “a reversible rotary steam-engine in which friction shall be reduced to as small an extent as consistent with suitable packing of the joints, the pressure on the piston-wings be practically balanced, and compensation made for wear” (lines 11-16). Illustration is included.
Date:
September 29, 1891
Creator:
Bretherton, Montague James
System:
The Portal to Texas History