| 摘要 |
A mobile chassis having an automatic self-leveling platform thereon which mounts a rotating sprinkler head. A pendulum level, mounted on the platform, senses variations in the ground contour and controls the flow of fluid to a plurality of double-acting hydraulic cylinders for a selective extension and retraction of the associated pistons so as to maintain the platform level and locked in its adjusted position until such time as variations in the contour require a readjustment. The device is guided along a cable which defines the path to be taken by the chassis and which incorporates means for automatically terminating movement of the chassis. A water supplying hose is dragged along with the chassis or is selectively stored on a chassis-mounted reel which has hose guiding rollers and guide pulleys associated therewith for the dispensing and gathering of the hose relative to the reel.
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