Steam powered liquid pump mechanical cycle counter

A steam powered liquid pump holding mechanical cycle counting apparatus comprising:

• a hollow, upwardly open actuator connector formed of a poor heat conducting metal and having a large heat radiating surface area, defined by a flat bottom wall, and integral sidewalls encircling a perimeter of the bottom wall and rising vertically from said bottom wall;
• an actuator including a stainless steel metal cylinder closed off at opposite first and second ends, said first end being fixably mounted to a bottom of said bottom wall and extending downwardly therefrom;
• a piston coaxially mounted within said cylinder for axial movement therein;
• a stainless steel piston rod fixed to said piston and extending coaxially therefrom, and having an end remote from said piston projecting vertically outwardly of the first end of the cylinder mounted to said bottom wall;
• a mechanical counter fixably mounted on said connector on edges of said integral sidewalls remote from said bottom wall laterally to a side of said end of said piston rod;
• a stainless steel coil spring concentrically surrounding said piston rod and having a first end abutting a face of said piston and a second end abutting said first end of said cylinder proximate to said connector bottom wall for biasing said piston towards said second end of said cylinder, said mechanical counter including a movable arm extending in a path of the projecting end of said piston rod and adapted to increment said mechanical counter upon cyclic movement of said movable arm and means for coupling the second end of said closed cylinder to a source of pressurized steam whereby, said connector acts as a heat sink to dissipate heat from said steam acting on a face of said piston within a chamber defined by said cylinder, said second end of said cylinder remote from said connector bottom wall and said piston,
• wherein the end of the piston rod projecting through said connector bottom wall makes only momentary contact with said moveable arm of said mechanical counter thereby minimizing temperature rise within said mechanical counter.