Trolley Control Arrangement

摘要

The trolley is driven by a d.c. electric motor powered by a battery and has a handle 11f. The handle 11f works a transducer 12 providing a control signal for driving the motor. The handle is connected to the trolley by a handle bar 11g to which is attached a bracket 13. The handle 11f has limited movement relative to the bracket 13 in the fore and aft direction (arrow 14), but is stiffly connected to the bracket 13 in the vertical and lateral directions (arrows 15, 16) whereby the trolley can be manually controlled in pitch and jaw.