A rope winder, which has a rack, and a winding drum set on the rack that releases and retracts a rope. The rope includes a first turning wheel, an electronic counter, a calculating unit, a speed regulating unit and a control unit. The turning wheel has a groove which fits the rope. A petroleum instrument salvaging system which includes the rope winder and rope. One end of the rope is wound on the winding drum of the rope winder. A petroleum instrument hoisting system which includes the rope winder and a rope of which one end is wound on a winding drum of the rope winder.

A rope winder, which has a rack, and a winding drum set on the rack that releases and retracts a rope. The rope includes a first turning wheel, an electronic counter, a calculating unit, a speed regulating unit and a control unit. The turning wheel has a groove which fits the rope. A petroleum instrument salvaging system which includes the rope winder and rope. One end of the rope is wound on the winding drum of the rope winder. A petroleum instrument hoisting system which includes the rope winder and a rope of which one end is wound on a winding drum of the rope winder.

The vehicle for transporting objects includes a body which is intended to contain these objects, and the body comprises at least one opening and at least one door. Each door closes such an opening, and which, depending on the circumstances, prohibits or permits entry inside the body. The vehicle also includes a winch which is located inside the body and includes a hook, a cable having a free end that is provided with this hook, a drum for winding the cable, and a motor for driving this drum. The vehicle also includes a securing device for fixedly securing the winch to the body, at least one attaching device which the at least one door includes, while the hook of the winch engages directly or indirectly with the at least one attaching device, and remote controller for the motor of the winch.

A stage hoist motor assembly includes a first electric motor including a first brake and a second electric motor including a second brake. The first electric motor and the second electric motor are stacked one atop the other within a common plane. A cable winch is rotatable about a winch axis and includes a cable winch shaft that is driven by the first and second electric motors through respective ones of a first drive coupling and a second drive coupling. A width of the motors is less than a width of the winch. Moreover, the motors are stacked one atop the other within a common plane to provide a compact foot print that is favorable to use in performance venue environments.

A stage hoist motor assembly includes a first electric motor including a first brake and a second electric motor including a second brake. The first electric motor and the second electric motor are stacked one atop the other within a common plane. A cable winch is rotatable about a winch axis and includes a cable winch shaft that is driven by the first and second electric motors through respective ones of a first drive coupling and a second drive coupling. A width of the motors is less than a width of the winch. Moreover, the motors are stacked one atop the other within a common plane to provide a compact foot print that is favorable to use in performance venue environments.

The present invention provides a powered winch retrieval system for harvested big game that can be configured either as a small trailer attachable to a vehicle via a hitch, or as a cantilevered unit couplable to a standard vehicle receiver hitch. The winch incorporates a frame that supports an internal combustion engine having a centrifugal clutch or constant velocity transmission (CVT) mounted thereon, a jack shaft chain driven by the centrifugal clutch or CVT for speed reduction and torque amplification, an output shaft on which is mounted a cable take-up spool, a norm ally-on disc brake assembly mounted on the final output shaft, a combination brake release and throttle lever, and an optional oscillating level-wind assembly. The level-wind assembly, which incorporates a linear ball-bearing bushing, ensures that the cable used to retrieve harvested game winds evenly on the take-up spool.

The present invention provides a powered winch retrieval system for harvested big game that can be configured either as a small trailer attachable to a vehicle via a hitch, or as a cantilevered unit couplable to a standard vehicle receiver hitch. The winch incorporates a frame that supports an internal combustion engine having a centrifugal clutch or constant velocity transmission (CVT) mounted thereon, a jack shaft chain driven by the centrifugal clutch or CVT for speed reduction and torque amplification, an output shaft on which is mounted a cable take-up spool, a norm ally-on disc brake assembly mounted on the final output shaft, a combination brake release and throttle lever, and an optional oscillating level-wind assembly. The level-wind assembly, which incorporates a linear ball-bearing bushing, ensures that the cable used to retrieve harvested game winds evenly on the take-up spool.

A winch system for controlling the elevation of an aerostats restrained by a cable is provided. The system includes a capstan arrangement configured for reducing the tension in a segment of a cable extending between an aerostats side and a drum side thereof; a spool drum configured for wrapping therearound a segment of the cable extending from the drum side of the capstan arrangement; a first drive mechanism configured to selectively activate the capstan arrangement in a released mode, in which the cable is let out towards the aerostats, and a pulling mode in which the cable is pulled in towards the spool drum; and a second drive mechanism configured to rotate the spool drum in the released mode and in the pulling mode such that the segment of the cable extending from the drum side of the capstan arrangement is pulled in a counter direction to the direction of the tension exerted on the cable.

An improved self-engaging clutch having a carrier plate with one or more clutch actuator fingers formed into the carrier plate.

A large-scale tool hoisting device for offshore electric power construction is provided. A steel cable retracted to winches is dried using the heat in the operating cabin, thereby preventing the steel cable from being in a wet state for a long time and being corroded by seawater. For different loads at the terminal of the steel cable, a transmission ratio between a drive wheel and a control wheel is changed through the sliding of the drive wheel. Without changing the rotational speed of the drive motor, the moving speed of the steel cable is effectively and correspondingly improved by reducing the pulling force of the steel cable, or a large pulling force can be provided for the steel cable by reducing the moving speed of the steel cable. The transmission ratio can be changed in the hoisting process.