Abstract: A lift apparatus comprising a wheeled base and a post mounted upright on the base. A fork lift having a guide frame which straddles the post and provided with rollers to travel on the post. The post is comprised of a plurality of interchangeable post segments releasably connected end to end. A winch mounted on one of the interchangeable post segments and a cable connected thereto and to the fork lift is operable to raise and lower the fork lift. This one post segment carries a bar to engage the guide frame to pivot the fork lift to a position parallel to this post segment to provide a compact arrangement and maintain the cable taut when the lift is disassembled. The winch includes a narrow groove cable pulley or spool so that connecting the winch device centrally of the post segment positions the rotational plane of the pulley in the center of the post with the result that no side resultant forces will be produced by the cable and no bracing required.

Abstract: A portable lift for industrial uses in which an upright post is supported on a base and has a carriage slidably supported thereon. Load carrying members extend forwardly of the carriage and a pulley is mounted on the carriage and in a pulley housing mounted on top of the post. A winch is supported rearwardly of the post, and a cable passes from the winch through the pulley housing downwardly to and around the carriage pulley then upwardly through a conduit in the pulley housing and is tied off at the winch support. A brace extends downwardly from the winch support to the base thereby to provide counter acting balances for the load. The combination disclosed, permits loads twice the rated winch capacity to be lifted without rocking, tipping or other unwanted oscillatory movements in the device.

Abstract: A portable material lift comprising a base and a vertical post supported thereon, which post is formed of a plurality of sections coupled together, a pulley housing at the top of the vertical post for supporting a pulley, a winch supported on the post between the pulley housing and base, a load supporting platform slideably supported on the post, a cable connected to the winch and extending over the pulley and connected to the platform for moving said platform with a load vertically with respect to said post, and an outrigger secured to the base to extend laterally of said base.