Proportional mixing system with water motor drive

A proportional mixing system with liquid motor drive comprising

• a reversing switch and valve assembly having a reversing switch means alternately movable from a first position to a second position, said reversing switch means including a reciprocating reversing member, shift means associated with said reversing member and movable thereby, and valve means including a reversing vane operatively connected to said reversing switch means capable of moving from a first position to a second position, said reversing vane linked to said shift means and being rotatable through a limited arc, said valve means including opposite port means, said valve means reversing vane being movable in response to said reversing switch means to alternately open and close said opposite port means, said valve means further including a liquid inlet and outlet opening to said reversing vane,
• said shift means comprising a hollow, spring retainer structure and opposite keeper means, said reversing switch means including latching and releasing means adapted to alternately catch and release opposite keeper means, said reversing member movable back and forth through said shift means and capable of driving said shift means in a reciprocating path, opposite trip means carried on said reversing member and positioned to contact and alternately move opposite latching and releasing means, and spring shifter means retained within said spring retainer structure and positioned for compression contact by opposite trip means, said spring shifter capable of alternately compressing and releasing at contact a trip means with a latching and releasing means to drive said shift means to an opposite position for latch engagement by an opposite keeper means,
• a liquid motor associated with said reversing switch and valve assembly and having a piston cylinder opening at opposite sides to said valve port means, a main piston movable within said cylinder, and a main piston shaft secured to said main piston movable therewith,
• actuating arm means linking said main piston shaft and said reversing member whereby said reversing member moves in response to main piston shaft motion,
• at least one metering pump actuated by movement of said main piston shaft and being linked thereto by pump ram arm means, said metering pump having a piston rod,
• whereby volumes of first liquid will be siphoned and pumped therethrough in predetermined quantities and said system will be automatically driven by the first liquid entering the said inlet of said valve means and introduced to alternate sides of said liquid motor piston with said liquid being alternately expunged at the opposite port means to subsequently exit the valve means at said outlet opening, and said expunged first liquid and a second liquid pumped by said metering pump in predetermined proportions can be directed to be subsequently mixed.