Rotary Engine.
Description:
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
Partner:
UNT Libraries Government Documents Department