| 摘要 |
A spool-handling dolly consisting of a simple U-shaped chassis mounted on wheels and arranged to be wheeled over a floor surface. The chassis has an upright post and slide, along which there is movable a carrige that is raised and lowered by a drive means comprising a vertical screw and a handwheel. The wheel has a lifting shoulder or projection which is adapted to be inserted in the bore of a filled spool that is positioned with both its flanges resting on the floor surface. The carriage also has a clamp jaw adapted to cooperate with the lifting shoulder in a manner to clamp an upper portion of one of the spool flanges securely to the carriage. A guide means on the carriage enables the clamp jaw to be vertically adjusted for this purpose. There is a second drive means on the carriage, engaged with the clamp jaw for moving the same along the guide means in its vertical travel. After the second drive means has been operated to clamp the spool securely to the carriage, the first drive means is operated to raise the carriage so as to lift the spool completely off the floor surface. The dolly and spool can then be wheeled to the desired location. The carriage includes an over-arm, at the extremity of which there is a pay-off pulley located to receive wire that is uncoiled from that end of the spool which is not clamped to the carriage.
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