An apparatus for operating a hand chain of a hand chain hoist. A housing forms a void through which a hand chain of the hand chain hoist moves in either a lifting direction or a lowering direction, to lift or lower, respectively, a load corresponding to the hand chain hoist. A sprocket or two pulleys are movably mounted within the housing. A drive, such as a right angle drill, operably moves the sprocket and/or the pulley and thus moves the hand chain, selectively, in the lifting direction or the lowering direction. A line, a cord and/or another suitable structural element connects the housing to an overhead structure. Another line, cord and/or other suitable structural element connects or holds the housing with respect to a ground surface or another fixed structural element, and an operator can use this line, which can be adjustable, to tighten and hold the overall chain hoist drive time of this invention.

An installation and removal tool for connecting a wall-mountable object to a wall mount on a wall includes a holder which is configured to receive the wall-mountable object, a first cable spool connected to the holder, a first cable windable around the first cable spool, the first cable having a distal end, a first connector disposed at the distal end of the first cable, the first connector removably connectable to the wall mount. And a second cable spool connected to the holder, a second cable windable around the second cable spool, the second cable having a distal end, a second connector disposed at the distal end of the second cable; the second connector removably connectable to the wall mount. A rotary drive is connected to the holder. A first axle is connected between the rotary drive and the first cable spool. A second axle is connected between the rotary drive and the second cable spool.

This method for setting a hoist that is equipped with an encoder for detecting the rotation speed of a drive motor and that lifts and lowers an article by rotating a load sheave using a driving force of the drive motor so as to roll up and roll down a load chain, the method comprising: a drive step for driving the drive motor at a constant rotation speed while applying a tensile force to the load chain; a storage step for storing, in a storage means, positional information obtained from the encoder in the drive step and a motor torque command value for controlling the drive motor in association with said positional information; and a speed correction curve calculation step for calculating a speed correction curve for driving the drive motor on the basis of cyclical variations in the motor torque command value stored in the storage step.

A hoist system for cable-reeling operations is disclosed herein. The hoist system includes a housing, a drum disposed within the housing and configured to spin about an axis, a motor configured to spin the drum about the axis, a cable configured to be wound and unwound from the drum as the motor spins the drum about the axis, a cable sensor configured to detect misalignment of the cable during the cable-reeling operations, and a motor controller operatively coupled to the cable sensor and the motor, wherein the motor controller is configured to receive a cable misalignment signal from the cable sensor and adjust operation of the motor in response to the cable misalignment signal.

A fixture is described. The fixture is for detecting distances between a hook assembly and a bell mouth of a rescue hoist and magnetically coupling the hook assembly to the fixture. The fixture couples to the bell mouth such that the fixture is affixed to a main housing of the rescue hoist. A cable of the rescue hoist extends through the bell mouth and the fixture. The cable includes a distal end coupled to the hook assembly. The cable is retractable causing the hook assembly to abut the fixture. The fixture may detect the hook assembly abuts the fixture and engages one or more electromagnets. The electromagnets cause the hook assembly to magnetically couple to the fixture, preventing the hook assembly from swaying when there is slack in the cable.

A fixture is described. The fixture is for detecting forces between a hook assembly and a bell mouth of a rescue hoist. The fixture couples to the bell mouth such that the fixture is affixed to a main housing of the rescue hoist. A cable of the rescue hoist extends through the bell mouth and the fixture. The cable includes a distal end coupled to the hook assembly. The cable is retractable causing the hook assembly to abut the fixture. The fixture may then detect the force. The force may be used to provide an indication to a crew of an aircraft that the force is below a minimum homing load or above a maximum homing load.

A line roller assembly is provided including a base assembly including a clamping assembly configured to clamp the base assembly to a parapet wall surrounding a roof of a structure or other installation, a carriage assembly slidably mounted on the base assembly, said carriage assembly including at least one arm including a roller at a distal end, said carriage assembly movable between at least one extended position and a medial position, and said at least one roller includes a groove configured to receive a line for aiding the line over the parapet wall, wherein in the at least one extended position the at least one arm extends a pre-determined distance over an edge of an outer wall of the structure or the at least one arm extends a pre-determined distance over an inner edge of the parapet wall of the structure over the roof.

Systems, methods, and apparatuses related to hoist systems are provided herein. The system includes a battery and a hoist. The hoist includes a motor configured to move the hoist relative to a cable and to provide power generated by moving the hoist to the battery and a controller. The controller is configured to receive data indicative of a load on the hoist and to operate the motor to stop movement of the hoist relative to the cable based on the load on the hoist exceeding a predefined threshold.

A hoist system for cable-reeling operations is disclosed herein. The hoist system includes a housing, a drum disposed within the housing and configured to spin about an axis, a motor configured to spin the drum about the axis, a cable configured to be wound and unwound from the drum as the motor spins the drum about the axis, a cable sensor configured to detect misalignment of the cable during the cable-reeling operations, and a motor controller operatively coupled to the cable sensor and the motor, wherein the motor controller is configured to receive a cable misalignment signal from the cable sensor and adjust operation of the motor in response to the cable misalignment signal.

A modular first top container stackable to a modular second bottom container wherein first top container may be adapted to spool in and out a tether, umbilical cord, and so forth to an ROV that may be housed in second bottom container during deployment and or retrieval as well as second bottom container and or first top container may be adapted to house a control system for the ROV that may or may not be manned for deploying, operating and retrieving the ROV.