Telsco Industries, Inc.

Other

H Curtis Ridgway

A rotary sprinkler is provided with structure for adjusting the force applied to the impact arm by the impact arm spring. The sprinkler has a laterally directed nozzle cooperating with the arm to rotate the nozzle and an impact arm journaled on a shaft extending above the nozzle. The arm is mounted within a cage extending above the nozzle. The cage includes a pair of arms extending from the nozzle on opposite sides of the shaft and terminating at their upper ends remote from the nozzle in a top plate. A helical spring surrounds the shaft and is secured at its lower end to the arm. A bushing assembly is mounted in the top plate of the cage and receives the top end of the spring. The bushing assembly may be manually adjusted relative to the top plate to vary the force applied by the spring to the impact arm. The sprinkler is mounted in a bucket-like housing positionable within the ground such that the mouth of the housing is flush with the ground surface. The sprinkler responds to the passage of water through the nozzle by rising from a lower first position retracted in the housing to a raised second position out of the housing. A top cover sized to mate with the mouth of the housing is attached to the top plate of the cage such that when the sprinkler is in the first position the top cover mates with the mouth of the housing to enclose the sprinkler therein.

Rotary sprinkler impact arm spring adjustment

Arc adjustment structure is provided for a rotary sprinkler having a rotatable nozzle supported from a shaft with the reversing mechanism attached to the nozzle and extending from the nozzle in the direction of the shaft. A notched ring is fixedly attached to the shaft below the nozzle. A first wire locking collar has one end compressively encircling the shaft above the annular gear and the opposite end formed in a loop extending radially from the shaft and terminating in a lateral end section for engagement with the teeth of the gear. A second wire locking collar has one end compressively encircling the shaft below the annular gear with the opposite end formed in a loop extending radially from the shaft and terminating in a lateral end section for engagement with the teeth of the gear. The locking collars are positioned such that the loops intercept the actuating arm of the reversing mechanism as the nozzle of the rotary sprinkler rotates on the shaft. The locking collars are positioned to any selected position about the circumference of the annular gear to control the arc through which the sprinkler operates.

Growing community of inventors

Dallas, TX, United States of America

H Curtis Ridgway