Everything You Need To Know About Water pumping windmills
The windmill’s wheel (fan) has 15 to 40 galvanized steel blades which spin around on a shaft. The shaft drives a geared mechanism that converts rotary motion to an up-and-down motion like a piston in a car engine. That motion drives a long pump rod (aka sucker rod) going up and down inside of a pipe in the well.
Attached to the end of the pipe is a cylinder with a sealed plunger going up and down in it that forces the water up the pipe.To read more info on water pumping windmills click the link below.