| 摘要 |
A material finishing line which includes a plurality of finishing tanks disposed in a linear array and a self-propelled hoist movable along an elongated track extending parallel to the finishing line. The hoist includes a base which contains the propulsion and control mechanism, and a guide fixedly projecting upwardly from the base. A pick-up arm is slidably carried on the guide and is cantilevered therefrom over the finishing line so as to pass over successive tank locations as the hoist is propelled along the track. The pick-up arm is raised and lowered by an hydraulic ram coupled to the base, and is held in horizontal orientation by a pair of chains trained around sprockets affixed to the guide and attached to the pick-up arm.
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