Abstract: The invention relates to an a drive machinery for an elevator, the drive machinery comprising a rotatable drive sheave for driving plurality of ropes of the elevator, the drive sheave comprising a central cylinder, which comprises a central axis around which the central cylinder is rotatable; plurality of circular rim members surrounding the central cylinder, each said rim member comprising an outer rim surface for engaging a rope. Said plurality of circular rim members includes one or more rotatably mounted circular rim members, each said rotatably mounted circular rim member being mounted on the central cylinder rotatably around said central axis relative to the central cylinder and relative to one or more of the other circular rim members, and in that said drive sheave moreover comprises a control means for controlling rotation of each said rotatably mounted circular rim member relative to the central cylinder and relative to one or more of the other circular rim members.

Abstract: The present invention relates to a free-fall winch comprising a drum which can be rotatorily driven by a winch drive via a transmission and can be retained by a holding brake, wherein in addition to the holding brake a free-fall brake is provided for slowing down the drum in free-fall operation. According to the invention, the free-fall brake is arranged between winch drive and holding brake on the one hand and drum on the other hand such that when the free-fall brake is open, the drum is decoupled from the winch drive and from the holding brake and can be rotated at idle with respect to the winch drive and the holding brake.

Abstract: A lifting apparatus, including a support carriage movable along a track, a lifting element for holding a load, a lifting device for raising and lowering the lifting element vertically relative to the support carriage. The lifting device includes at least two tension elements, wherein each tension element can be wound onto the supporting carriage by a winding apparatus. A first drive is provided for driving a first winding apparatus and a second drive is provided for driving a second winding apparatus. The first drive has a drive motor which drives a shaft by a conical gear mechanism, the shaft drives a roller of the first winding apparatus by a gear mechanism element and the second drive has a drive motor which drives a roller of the second winding apparatus by a spur gear, parallel-shaft gear or planetary gear mechanism.

Abstract: A remote control system for remotely controlling a vehicle lift. The remote control system may comprise a lift control module and a remote computing device. The lift control module may be configured to receive information indicative of an instruction to pair the lift control module with a computing device and to present a validation code. The remote computing device may be configured to receive information indicative of an instruction to pair the remote computing device with the lift control module and to receive the validation code presented by the lift control module. Upon validating the received validation code, the remote computing device may be configured to be paired with the lift control module.

Abstract: The present invention relates to a winch, in particular a luffing winch, with a winch drum, at least one main drive driving the transmission input shaft, and at least one emergency drive driving the transmission input shaft in case of emergency, wherein at least one emergency drive can be coupled to the driven wheel of the transmission input shaft as required via at least one intermediate gear. The present invention furthermore is directed to a construction machine or a lifting device with at least one such winch.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A multi purpose hoisting device for use on a floating vessel having a deck, including: a load bearing structure to be mounted on the vessel; a main hoisting mechanism for raising/lowering an object above the deck and including: at least one main hoisting winch; an upper cable pulley block supported by the load bearing structure; a travelling cable pulley block; a main hoisting cable associated with the at least one main hoisting winch and passed over pulleys of the upper cable pulley block and of the travelling pulley block in a multiple fall configuration, such that the travelling cable pulley block is moveable relative to the load bearing structure by using the at least one main hoisting winch; a main hoist heave compensation mechanism associated with the main hoisting cable for damping the effect of sea-state induced motion of the vessel onto an object supported by the main hoisting cable.

Abstract: An assembly includes a motor; a second motor; a planetary transmission coupled to the motor and the second motor, and a spool coupled to the transmission. The spool has an interior volume for receiving the motor, the second motor and the transmission, and the motor and the second motor are disposed or disposable entirely within the spool. The motor and the second motor are capable of being operated such that one of the motors is speed controlled, and the other motor is torque controlled.

Abstract: A double drum traction winch supporting a first and second rotatable drum is provided. The circumferential surface of each drum is provided with circumferential grooves perpendicular to the rotational axis of the drum. The grooves of each drum are subdivided in a first set of grooves for guiding a first wire and a second set of grooves for guiding a second wire. The grooves of the first set alternate with grooves of the second set such that the circumferential surface of each drum is provided with multiple grooves of the first group, each interpositioned between two grooves of the second group. Therefore the traction winch is capable of cooperating with a first wire in the first set of grooves or with a second wire in the second set of grooves, wherein both wires differ in type of material and/or cross section and/or maximum tensile strength.

Abstract: The subject invention includes a lift system including a first scissor-type lift assembly and a second scissor-type lift assembly spaced from the first scissor-type lift assembly. The first scissor-type lift assembly includes a first base and a first platform coupled to the first base for movement between elevated and lowered states. The first scissor-type lift assembly includes a first motor operatively mounted to the first base. The second scissor-type lift assembly includes a second base and a second platform coupled to the second base for movement between elevated and lowered states. The second scissor-type lift assembly includes a second motor operatively mounted to the second base. The first and second motors move the first and second platforms between the elevated and lowered states. The lift system includes a controller in communication with the first and second scissor-type lift assemblies to synchronize operation of the first and second motors.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A winch apparatus (10) comprises first and second drum assemblies (12, 14) each defining a discontinuous drum contact surface for engaging a common spoolable medium (50), wherein the first and second drum assemblies (12, 14) are configured to rotate about respective first and second axes of rotation (24, 26) which are inclined relative to each other. In one disclosed embodiment the drum assemblies (12, 14) are intermeshed in a general axial direction.

Abstract: Synchronization assembly and plant for laying cables such as electric conductors, optical fibers, ropes or suchlike. The machines of the assembly and plant are distinct and independent with respect to each other and each includes unwinding members having at least a pair of capstans to unwind the cables, and corresponding traction/collection members having at least a pair of capstans to wind the cables fed from the relative unwinding members. The synchronization assembly and plant includes automatic adjustment members that adjust the speed of rotation of the capstans of at least two unwinding members or two traction/collection members of the laying machines, so as to maintain the winding/unwinding speed of the cables stretched by each machine substantially equal.

Abstract: The invention relates to a double drum traction winch (1) of which the rotatable drums (3,4) are both provided with adjustable grooves (7,8). Each drum comprises multiple, for example three or more, curved segments (11), each segment defining a section of a circumferential groove, such that multiple circumferential grooves on the outer surface of the drum are each composed of several curved segments. The curved segments are each movably supported by a core body (10) for movement in a substantial radial direction relative to the rotational axis of the drum. An actuator mechanism for the curved segments is provided, that comprises actuators (12) that cause essentially radial displacement of the curved segments, such that the circumference of the grooves can be adjusted.

Abstract: A hoist system and a method for lifting and lowering an object such as a boat include a support structure, a support member supported by the support structure and a hoisting assembly. The hoisting assembly includes an attachment assembly and a set of at least three flexible members operably coupled to the support member and the attachment assembly to retract and extend the attachment assembly vertically relative to a reference axis. The hoisting assembly is supported by the support structure and configured with the support member so as to space apart the flexible members from each other, and wherein each flexible member defines an oblique angle with the reference axis parallel to the vertical reference axis.

Abstract: This invention relates to a demountable vehicle body system, in which a variety of different body types can be mounted and demounted from a vehicle chassis or trailer to enable a single vehicle chassis or trailer to be utilized for a variety of different purposes. In particular, the present invention relates to a demountable vehicle body system for motor vehicles and trailers which provides for a convenient and cost effective use of a variety of vehicle body types. Advantageously, the present invention provides a demountable vehicle body system that is capable of safely mounting or demounting a wide variety of vehicle body types, including fully-loaded heavy bodies, in a smooth and efficient manner. The vehicle body system described herein can be mounted or demounted in a matter of minutes by a single operator.

Abstract: An automated wrist restraint system providing a safe and simple device to immobilize a suspect. A conformal flexible band is employed in a loop configuration, to allow, in the open position, the entry of the largest sized hand encountered in the field. In the closed position the band conforms to the geometry of the wrist to minimize contact forces and prevent wrist injury. Additionally, a microprocessor, controlled servomechanism opens, closes and slackens the band to further prevent wrist injury. A simply activated, holster worn, radio transmitter allows the operator to remotely activate the system, while maintaining a safe distance from the suspect. Among the many possibilities contemplated, the system may be fitted to a law enforcement vehicle, or a robot.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A control system is provided for a group of winches in a system. Each motorized winch in the system can have a control board that can process and generate control commands for operation of the winch. The control board can receive inputs from an automation control system and/or the other control boards to be used in the generation of the control commands for the winch.

Abstract: In certain embodiments, a tower lifting system comprises a primary lifting system and a secondary lifting system. The primary lifting system includes a lift cap configured to support a tower section to be lifted, the lift cap having a first plurality of hoists, and a lift pole coupled to the lift cap, the lift pole having a lifting mechanism configured to lift the lift cap, the lift pole, and the tower section to be lifted from within a previously lifted tower section. The secondary lifting system comprises a second plurality of hoists configured to raise the tower section to be lifted to the lift cap from a tower foundation.

Abstract: The invention relates to a double drum traction winch supporting a fist and second rotatable drum. The circumferential surface of each drum is provided with circumferential grooves perpendicular to the rotational axis of the drum. The grooves of each drum are subdivided in a first set of grooves for guiding a first wire and a second set of grooves for guiding a second wire. The grooves of the first set alternate with grooves of the second set such that the circumferential surface of each drum is provided with multiple grooves of the first group, each interpositioned between two grooves of the second group. Therefore the traction winch is capable of cooperating with a first wire in the first set of grooves or with a second wire in the second set of grooves, wherein both wires differ in type of material and/or cross section and/or maximum tensile strength.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include harmonic drive gear reduction elements and configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A power operated winch mechanism for handling the running rigging lines of a sailing yacht. The winch includes a winding drum, which winds and stores the line during line retrieving operations and controllably releases the line when desired. A pair of the new winches can be controllably operated using a portable or fixed control device, with one winch controlled to retrieve one line while another winch controllably releases line in a coordinated procedure. Among other things, such coordinated operations can be useful in carrying out tacking and gybing maneuvers without crew involvement in line handling operations. Novel level wind features enable the lines to be appropriately tensioned during retrieval, and positively drawn from the drum when the line is not under load. Significant improvement in the safety and convenience of the crew is enabled.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include harmonic drive gear reduction elements and configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A lifting reel with a four-line wire structure includes a fixed body fixed to a ceiling of a structure, first and second drums installed to the body at a predetermined interval and rotated by a driving motor, wires respectively connected to the first and second drums, and first, second, third and fourth guide rollers arranged on a top of a lifting body at regular intervals and suspended on the wires to form a four-line wire. A wire-twisting prevention device is installed between an end of the wire connected to the first drum and an end of the wire connected to the second drum so as to connect both wires with each other. The wire-twisting prevention device includes bearings installed to the ends of the wires to be rotatable, respectively. The bearings prevent the wires from being twisted while the wires are wound around or unwound from the drums.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include harmonic drive gear reduction elements and configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A winch (1) for pulling a cable (C) for maneuvering a load is composed of two motorized drums (3) each including an active cylindrical peripheral surface (5) equipped with several annular grooves (6), the cable intended to be wound around the two drums (3) according to a helical arrangement. The motorized drums are each formed from at least three pulleys (11), that can each be rotated around a common central axis (10), cooperating with their own dedicated motor element (4) and including a cylindrical peripheral surface equipped with at least one of the grooves: two pulleys known as outer pulleys (11a, 11d), positioned between which is at least one pulley known as a central pulley (11b, 11c). The central pulleys include at least one axial cylindrical extension, the cylindrical peripheral surface of which constitutes a rotation bearing for the central cylindrical surface of at least one of the other pulleys.

Abstract: A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include harmonic drive gear reduction elements and configurations that provide high cable friction in a small device volume. Examples of pullers and pulling systems also include constant force pulling which is desirable in particular for small diameter pipe replacement. Using pullers and pulling systems as described, minimally invasive pipe replacement operations are possible. Reversible pullers are also provided that decrease the amount of time needed to burst or split multiple segments of pipe.

Abstract: A twin lifting machinery for two 40 feet container shore crane is disclosed, comprising motors, high speed shaft brakes, two reductors, a plurality of multiple-project rope reels, and a plurality of reel brakes; wherein at least two motors and two reductors are provided; the input shafts of said two reductors connect to one of the output shafts of the motors respectively, and the output shafts of each reductor connect to the reels, the reel brakes are provided on each reel respectively. The synchronous operation or individual operation of two sets of lifting machineries under electrical control can be carried out, achieving the lifting and lowering operation of two hanger tools of sea side and land side The twin lifting machinery thus can carry out both the synchronous operation of two hanger tools and the individual operation of a single hanger tool, increasing the loading and unloading efficiency of the container crane by more than 60%.

Abstract: A elevator hoisting machine is provided with a stator mounting portion at which a stator core of a motor is mounted to a surface of a side opposite to a sheave in a sheave rotation centerline direction of the hoisting machine. A hat shape fixed frame member in which the stator mounting portion and a fixed main shaft that supports rotation of a rotor through a bearing are integrated. The elevator hoisting machine is characterized in that a brake device in which an inner radial surface of a cylindrical rotor mounting portion forms a braking surface. A motor is characterized in that the width of a magnet constituting a rotor is larger than the width of the stator core. The elevator hoisting machine is provided with the motor.

Abstract: A lifting device comprises four pairs of hoisting cables arranged in a V-shape relative to one another for lifting and lowering a load suspension apparatus at which they engage and which are taken off from drivable cable drums. The free lengths of the hoisting cables of two longitudinal pairs of cables lie in longitudinal planes which are located at a distance from one another, and the free lengths of the hoisting cables of two transverse pairs of cables lie in transverse planes which are located at a distance from one another and which extend at right angles to the longitudinal planes. Two mechanically separate hoists are provided for the hoisting cables of the two longitudinal cable pairs and for the hoisting cables of the two transverse cable pairs, each of the hoists is drivable by its own driving motor, and the driving motors are controlled by a common control device.

Abstract: A load lifting apparatus with base frame that has elements to engage a surface which supports the load lifting apparatus. A plurality of lift posts ate attached to and extend upward from the base frame. A load platform for supporting an object being lifted can be raised and lowered with respect to the base frame. The load platform includes a motor arrangement which rotationally drives a plurality of reels. A plurality of flexible ties are connected to the plurality of lift posts and wind onto and unwind gfrom plurality of reels.

Abstract: A detention unit is provided for retrieval of an elongated body (9), such as a cable. The unit includes two or more movable friction surfaces (1, 11) adapted to pull in the elongated body (9). The moveable friction surfaces (1, 11) are arranged relative to each other so that the elongated body (9) may bear or rest against at a part of at least two friction surfaces (1, 11) in a sequential manner. The part of the friction surfaces (1, 11) adapted to pull the elongated body (9) defines a arc section, and each friction surface is provided with a separate propulsion unit (3, 14).

Abstract: There is provided a reactor internal equipment hoisting apparatus which is hung down from an upper side of a reactor pressure vessel to hoist reactor internal equipment installed inside the reactor pressure vessel. The hoisting apparatus includes a supporting unit which is hung down from the upper side of the reactor pressure vessel with an overhead travailing crane installed on the ceiling of the reactor building, and an elevating unit which is arranged below the supporting unit. A coupling/fixing unit is provided to the elevating unit to be releasably coupled with a hoisting lug. Power hoist using a wire rope or a chain is provided to the supporting unit. The elevating unit is hung down from the supporting unit via the rope or the chain to be moved vertically. This reactor internal equipment hoisting apparatus is easy in maintenance and storage.

Abstract: In a theatrical rigging system, a number of motors can be placed on platforms which can move upon rails to be connected to different theatrical rigging elements. The motors can be randomly attached to operate different overhead hanging devices.

Abstract: A capstan and stowage reel assembly for arrays towed by submarines, the ambly comprising a capstan mounted for rotation about an axis, the capstan having a toothed annular wall and an annular external wall adapted to receive cable/array means thereon, a capstan toothed drive means engaged with the toothed wall to cause the rotation of the capstan, a combination winch/stowage reel mounted for rotation about the axis, the reel having first and second circular flanges adapted to receive the cable/array means therebetween, the first flange having a toothed portion, a reel toothed drive means engaged with the toothed flange to cause the rotation of the reel, and a guide conduit for guiding the cable/array means from the capstan onto the reel in cable/array retrieving operations and from the reel onto the capstan in cable/array means deployment.

Abstract: A reeving apparatus for a crane hoist is disclosed as having an overhead frame, a lifting beam positioned below the frame and carrying a plurality of rotatable lifting beam sheaves, and load carrying means suspended from the lifting beam. A plurality of ropes are also provided for supporting the lifting beam and load carrying means with each one of the plurality of ropes being wrapped around at least one of the plurality of lifting beam sheaves. A pair of rotatable drums are mounted on the overhead frame with the first drum being connected to the plurality of ropes for raising and lowering the lifting beam and the second drum also being connected to the plurality of ropes for raising and lowering the lifting beam. Although both drums are connected to the plurality of ropes, they are operable independently of each other to raise and lower the lifting beam in the event of inoperability of either drum.

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.

Abstract: Multi-pedestal winch system with disconnect automatic reconnect.