Rotation speed control device for a rotary, impulse water sprinkler and a water sprinkler having same

摘要

A rotary, impulse water sprinkler having a rotatable water dispensing head includes a water nozzle for directing a stream of water with a movable splash plate extending over the outlet of the nozzle to selectively deflect the water stream issuing from the nozzle to control the distance that the water stream will project from the water nozzle outlet. The impulse water sprinkler has a pivotally mounted impulse device with a vane at one end thereof adapted to be selectively disposed in the water stream from the nozzle outlet thereby causing the dispensing head to rotate. A rotation speed control device is operatively associated with the impulse device to control the amount by which the impulse vane is disposed within the water stream.