90{20 {10 SAFETY SHUTOFF SYSTEM FOR SELF-PROPELLED SPRINKLING APPARATUS

摘要

A safety control system for shutting down a self-propelled sprinkling apparatus when the long line of spaced self-propelled towers, and thus the pipeline supported thereby, deviates by a given angle from a 90 DEG relationship relative to the direction of movement of a driving means located at its end. Valve means is suitably supported, whereby excessive leading or lagging deviation of the pipeline from the 90 DEG relationship is sensed by the valve means, to in turn actuate means which terminates the water input to the pipeline and shuts down the apparatus.