Abstract: The present invention is an improved wheeled, light-weight lift which meets standards for airline ground support vertical lift devices, specifically being capable of use on airport tarmacs in winds up to 90 mph. On and off-loading ramps are provided which are rotatable between an upright stored position and a horizontal working position. The ramps comprise a bridge structure supporting a plurality of louvred deck plates. Each louvre is linked to the others so as to remain oriented horizontal regardless of the ramps position for minimizing their aerodynamic profile and overturning moment. Outriggers are extendible from the frame so as to increase its base dimensions and thus the moment needed to overturn the lift. The outriggers retract into the frame to minimize storage. The outriggers are horizontally movable along their longitudinal axis to minimize the deployment space required.

Abstract: A tray installation rack is used for a test handler to install therein a plurality of trays each of which has a large number of IC devices to be tested.

Abstract: Apparatus for raising a conveyor above the surface of a poured concrete structure as the structure is formed includes a post moveable in a vertical direction that supports a conveyor on top of the post. A horizontal support tube is connected to the post, as well as a collar. A jack engages the support and raises the post and collar. A hydraulic means then places a base around the post below the collar so that when the jack is lowered, the conveyor, post and collar are supported by the newly placed base, thereby raising the conveyor relative to the surface of the structure.

Abstract: Pallet loading apparatus including a three-sided enclosure open at top and bottom in which a cantilver-supported lifting platform is vertically reciprocable and driven by a hydraulic system housed in the rear wall of the enclosure, the rear wall being comprised of relatively widely spaced panels and the side walls being relatively narrow. The platform may be locked in position at a predetermined height within the three-sided enclosure to permit its movement from place to place by a hand pallet jack or forklift.

Abstract: The present invention provides for an easy to use lifting device that can be operable by a single attendant. In one of the embodiments, the lifting device is designed to enable the patient or a single attendant to activate and deactivate the lifting device. The lifting device also includes a shaft that is releasably secured to a base. Located on or within the shaft is a lifting mechanism. A seat frame having a seat attached thereto is secured to the lifting mechanism. An actuation device provides for the seat to be hoisted vertically along the shaft.

Abstract: A floor-running stacker crane comprising a non-linear floor rail, a non-linear overhead rail, a base supported for movement along the floor rail, a turntable, a rotate bearing supporting the turntable on the base for rotation of the turntable relative to the base about a generally vertical axis, a rotate drive for rotating the turntable relative to the base, a mast having a lower end fixed to the turntable such that the mast rotates with the turntable relative to the base, the mast also having an upper end supported for movement along the overhead rail, a carriage moveable vertically relative to the mast, a hoist assembly for moving the carriage vertically relative to the mast, a load engaging mechanism, a rotate bearing supporting the load engaging mechanism on the carriage for rotation relative to the carriage about a generally horizontal axis, and a tilt drive for rotating the load engaging mechanism relative to the carriage.

Abstract: An improved stacker assembly includes a base assembly and a hollow mast which extends upwardly from the base assembly. A cap assembly is disposed on the upper end portion of the hollow mast. A carriage is movable up and down along the mast to raise and lower a load. The base assembly includes an upwardly extending mast support assembly which is telescopically received in the lower end portion of the hollow mast. The mast support assembly includes a gripper assembly which is operable to grip the inside of the lower end portion of the hollow mast. The cap assembly includes a downwardly extending cap support which is telescopically received in an upper end portion of the hollow mast and is expandable to grip the inside of the hollow mast. In the event of a loss of tension in a support cable for the carriage, a brake assembly on the carriage grips elongated brake bars which are separate from the mast to support the carriage.

Abstract: Apparatus is disclosed for engaging, raising and rotating tanks/cylinders which contain liquids or gases under pressure. The apparatus comprises a cradle rotationally mounted on an elevator housing. While the tank/cylinder is elevated, an auto turn linkage in one embodiment of the apparatus assists in turning the cradle assembly by engagement with an indexing mechanism. Once the tank has been rotated 90 degrees, the indexing mechanism is locked in place, the auto turn linkage is released, and evacuation plumbing is affixed to the tank. The tank is then manually inverted for evacuation of the liquid.