Abstract: A sprinkler device has a helical track and a tracking element coupled between a reciprocating piston and a rotating head or nozzle to convert the reciprocal linear motion of the piston to rotation motion of the head or nozzle. A sprinkler housing defines a chamber for receiving the reciprocating piston. A sprinkler head is rotatably disposed on the housing and has a shaft extending into a cavity of the piston. The helical track is formed in the exterior surface of the shaft. Water is channeling into the chamber causing the piston to move in a linear direction. A tracking element formed on the piston engages the track and forces the shaft, and thus the head, to rotate. A return mechanism is coupled to the head and engages a valve to control the channeling of the water about the piston, causing the piston to reciprocate. An adjustable valve controls the flow of the water about the piston, and thus the rotational speed of the head.

Abstract: A water sprinkler device of the type having a reciprocating or oscillating sprinkler nozzle is provided comprising a novel fluid drive system for the nozzle movement. Water upstream from the spray nozzle is partially diverted to a piston chamber. Water entering the chamber moves a piston in reciprocating movement within the chamber. A rack is connected to the piston to move outside the chamber with the same reciprocating motion as the piston. The rack engages a gear associated with the sprinkler nozzle to impart oscillating rotational movement to the sprinkler nozzle as the rack moves in its reciprocating motion.

Abstract: A puzzle type toy comprises a hexahedral, solid body having a plurality of bores of uniform depth extending inwardly from three sides thereof. A plurality of uniform length rods, equal in number to the number of bores in the solid body, are adapted to be inserted into the bores. The rods have various combinations of notches in the sidewalls thereof whereby the rods can all be received in the bores only when the rods are inserted in their respective bores in a particular, preset order, otherwise an interference will occur between the rods as they are inserted into the bores.