| 摘要 |
A rotary-type lawn sprinkler that is reversibly rotatable through any angle. The angle is set by means on the exterior of the sprinkler while the reversing is fluidic and takes place completely within the sprinkler. A slip clutch allows manual rotation of the sprinkler head. The nozzle is angularly adjustable in a vertical plane through 80 DEG , and the nozzle diffuser is adjustable to provide an infinite number of stream diffusion patterns; adjustment of either can be made during operation. A magnetic coupling between the reversible turbine and planetary reduction gearing allows sensitive reduction gearing to be sealed from the water flow. |
