Weir Style Single Cylinder Vertical Steam Pump

5/8” Bore (Steam End) 7/16 Bore ( Water End) by 1/2” Stroke

A relatively simple single cylinder vertical steam driven Weir type water
pump. Approx 7” high and occupies a 2 1/8” by 2 7/16” space
Three complete and fully detailed plans and castings with several explanatory diagrams
of the internal workings are available.