| 摘要 |
A towable-trailer for a propane tank has a frame which is provided with an overhead boom extending lengthwise of the trailer and beyond the back of the trailer, a tank hoist movable along the boom, an independent engine and power train with a universal for driving the trailer wheels, and a steering mechanism for a retractable nose wheel of the trailer, with the engine being located at the trailer hitch end for proper weight distribution to offset the weight of a tank when positioned at the rear end of the boom. The trailer can be independently driven into a confined new-tank storage yard to pick up a tank, the loaded trailer driven to a purging station to have the tank purged, the trailer hitched to a truck, hauled to the site and unhitched from the truck at the road, the trailer independently driven to the point of final installation and the tank deposited at the point, all of these tasks ordinarily being handled by the same individual without assistance.
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