Water-driven oscillating monitor

A water-driven oscillating monitor comprising a fixed base assembly and an oscillating and reciprocating water discharge assembly in operating assemblage therewith;

• said base assembly including an annular cylinder, an annular piston head reciprocably slidable in said cylinder, a water flow hollow piston rod connected to said piston head;
• said discharge assembly including a discharge tube in water flow communication with a central passage within said annular piston head and a central passage within said hollow piston rod;
• means for converting said reciprocable movement of said piston to oscillatory movement;
• and
• wherein said means for converting comprises cam means for interconnecting and oscillating said discharge assembly with respect to said base assembly, said cam means including a cam barrel extending around and interconnected with said hollow piston rod and operable by movement of said piston head in said cylinder responsive to a diversion of a minor flow of water from said central passage to a valve, said valve being operable for reversing the movement of said piston head in said cylinder.

A water-driven oscillating monitor comprising a fixed base assembly and an oscillating and reciprocating water discharge assembly in operating assemblage therewith;

• said base assembly including an annular cylinder, an annular piston head slidable in said cylinder, a water flow hollow piston rod connected to said piston head;
• said discharge assembly including a discharge tube in water flow communication with a central passage within said annular piston head and a central passage within said hollow piston rod;
• cam means for interconnecting and oscillating said discharge assembly with respect to said base assembly, said cam means being operable by movement of said piston head in said cylinder responsive to a diversion of a minor flow of water from said central passage to a valve for reversing the movement of said piston head in said cylinder;
• and
• in which said cam means includes a first barrel cam connected to said piston rod, a second barrel cam connected to said fixed base assembly, at least one helical cam track in each of said barrel cams, and a cam ring and roller engaging said cam tracks such that movement of said piston head oscillates said second barrel cam and said discharge tube.