Abstract: An aluminum boat hoist carrier is configured to lift a vessel above a ground surface. The boat hoist carrier has a first aluminum c-channel having a first plurality of block attachment openings, at least one first channel grease opening, a first plurality of structure attachment openings, and a second plurality of structure attachment openings. Two billet aluminum pillow blocks are attached to the first and second plurality of structure attachment openings. A second c-aluminum channel has a second plurality of block attachment openings, at least one second aluminum channel grease opening, a third plurality of structure attachment openings attached to the first billet aluminum pillow block, and a fourth plurality of structure attachment openings attached to the second billet aluminum pillow block.

Abstract: A device replaces roller sets on pylons of cable cars. The device contains a replacing vehicle which can be moved along a cable of the cable car and at least two winches having cables by which the roller set to be replaced can be lowered and a new roller set can be raised. The replacing vehicle contains at least two interconnected vehicles which by way of clamps are connected to the cable.

Abstract: This boat lift drive is used for raising and lowering a wide range of boat size. The boat drive is a two stage worm system and uses a drive motor having a motor shaft driving a first worm and a first worm wheel as a first stage, and driving a second worm and a second worm wheel, as second stage. At least one of said worm shafts has a copper alloy intermediate worm portion. A third stage is provided having a spool driven by the second worm wheels, the spool having a cable disposed thereabout for lifting the boat.

Abstract: A storage facility has a frame having a pair of first and second opposed parallel spaced apart elongated frame elements. The frame members each include means for attaching the frame to a horizontal ceiling. A cable support element is positioned at each end of each frame member. An elongated rotatable shaft has a first end connected to an intermediate location on the first frame member, and a second end connected to an intermediate location on the first frame member. A drive mechanism is connected to the shaft to control the rotational position of the shaft. A number of cable portions each have a first end secured to a respective end portion of the shaft. Each cable portion has an intermediate portion received by a respective cable support member, and a free end extending downwardly from the support member. A platform is connected to and supported by the free ends of the cables, and operates to elevate or lower in response to rotation of the shaft by the drive mechanism.

Abstract: An agricultural or floricultural elevation system is provided for lifting and supporting agricultural or floricultural products or containers at a desired elevation above the ground. The system includes a spool shaft and a drive assembly. The drive assembly is operable from a location below the spool shaft, and is adapted to selectively rotate the spool shaft axially in a first direction and a second direction. The elevation system further includes a plurality of first lines having a first end and a second end. The first ends are secured to the spool shaft so that when the spool shaft is rotated in the first and second directions, the first lines are wound and unwound, respectively, around the spool shaft. The system also includes a hanger rod that is secured to the second ends of the first lines to suspend from the spool shaft. In operation, a user secures agricultural or floricultural products or containers to the hanger rod.

Abstract: The invention relates to a lifting apparatus with a carrying part (16, 18) which is connected via a cable (22) or the like with an actuating part for adjustment of the vertical position of the carrying part, in particular by means of interconnection of a pantograph (10), the actuating part comprising an actuating device with a gear transmission of which one transmission part, under the influence of the load of the carrying part (16, 18) or a load hanging from this, exerts a force on the other transmission part which couples this transmission part with an actuating element against a restoring force, wherein, upon actuation for the lifting of the carrying part (16, 18) out of the position in which the one transmission part does not exert any force on the other transmission part, the latter is moveable again into coupling engagement by means of the actuating element.

Abstract: A portable winch includes a frame, a drum supported by the frame, and a motor for rotating the drum via a transmission. Each end portion of the drum extends into and is rotatably supported by respective annular bearing portions of the frame. Another portion of the frame extends into the drum from one end thereof substantially parallel to the longitudinal axis of the drum, supporting the motor and the transmission which are within the drum, an output shaft of the transmission being detachably connected to the drum at the other end thereof.

Abstract: A lifting mechanism is provided to unseat and lift manhole covers and gratings and to replace them after servicing, easily and safely. The mechanism includes a frame, winches, cables, and hooks to lift and lower the covers and gratings. The mechanism also includes spuds for fixing the frame in position to prevent it from rolling into the hole being worked on.