Abstract: A system for controlling operation of a winch assembly having an electric motor, a drum, and a cable. A controller is configured to access a winch load threshold, with the winch load threshold defining a hold zone and a reel zone, and one of the hold zone and the reel zone including loads greater than the winch load threshold and another of the hold zone and the reel zone including loads less than the winch load threshold. The controller is further configured to determine whether the drum is rotating, determine whether the winch assembly is operating within the hold zone or the reel zone, generate a hold current while the winch assembly is operating within the hold zone preventing rotation of the electric motor, and generate a reel current while the drum is operating within the reel zone permitting rotation of the electric motor.

Abstract: A trolley installer for use with a crane bridge is configured for supporting a trolley thereon. The trolley installer includes a lift system adapted for mounting to the crane bridge. The lift system includes a lift mechanism and a strand coupled to the lift mechanism. The trolley installer also includes a platform member including a table for supporting a trolley and an attachment mechanism for releasably coupling with the strand of the lift system. The lift mechanism is operable to lift and lower the platform member relative to the crane bridge.

Abstract: A cable angle exceedance detection arrangement is provided. The cable angle exceedance detection arrangement may include a housing having an aperture extending therethrough defining an axis, the aperture being configured to allow a cable to extend through the housing from a first end of the housing, wherein the cable is aligned with the axis, to a second end of the housing. The cable angle exceedance detection arrangement may include a detection member coupled to the housing and configured to be contacted by the cable when a fleet angle defined between the axis and the cable at the second end of the housing exceeds a selected value.

Abstract: A pulley includes a securing head and a first flange. A first shaft extends from the first flange. A sheave is mounted rotatable around the first shaft in one direction of rotation only. A cam is mounted able to move away from or towards the sheave. A spring is fitted to exert a force moving the cam towards the sheave. A handle is mounted on the first flange to move the cam between the first and second positions.

Abstract: The pulley comprises a securing head and a first flange. A first shaft extends from the first flange. A second flange and a sheave are mounted rotatable around the first shaft with respect to the first flange. A rod is fixed to the first flange and mounted movable between a first position and a second position with a first movement. In the first position, the rod engages with the second flange to keep the second flange in the first position. In the second position, the rod allows rotation of the second flange. A blanking plate is fixed on the second flange and mounted movable between a first position and a second position with a second movement different from the first movement. The blanking plate partially covers the rod to prevent movement of the rod from the first position to the second position.

Abstract: A bushing for a web material roll including a body sized to be fitted into the web material roll; the bushing further including a wall extending across the central cavity of the web material roll when the bushing is in the central cavity of the web material roll and defining an opening for receiving a roll support therethrough, the opening being bordered by a roll support contacting surface, the bushing having one or more bearing surfaces for contacting the roll support and supporting the web material roll, the one or more bearing surfaces including at least the roll support contacting surface bordering the opening. A web material roll, a web material roll retention assembly and a method for placing a web material roll in a web material roll dispenser are also provided.

Abstract: A skyline log conveying system having a skyline for extending between two elevated supports, one at or above a landing at which logs are deposited and another at a lower position at least as low as an area from which logs are to be moved. A carriage is rollably mounted to the skyline. A grapple is suspended from the carriage, the grapple having closed and opened positions for grasping and releasing logs. A hydraulic pump is mounted to the carriage. A rotatable member is driven by the skyline with the rolling of the carriage on the skyline for driving the hydraulic pump to generate hydraulic pressure. At least one accumulator is in hydraulic communication with the hydraulic pump, the at least one accumulator capable of storing pressure when hydraulic pressure is transmitted to it by the hydraulic pump. A hydraulic ram is hydraulically interconnected with the at least one accumulator and mounted to the grapple to selectively close the grapple to facilitate the grasping of logs.

Abstract: A cable drive system having a cable drum housing, a cable drum unit mounted therein for rotation by a drive motor, a first control cable and a second control cable. The first and second control cables are each windably held on the cable drum unit for the purpose of driving the protection device. The first control cable is guided out of a first housing part of the cable drum housing along a first direction, and the second control cable is guided out of a separate, second housing part of the cable drum housing along a second direction. Different mounting positions of the first housing part are provided in which the first housing part is in different rotational positions relative to the second housing part, with the result that the first guidance direction has a different orientation than the second guidance direction in the different mounting positions.

Abstract: A shut-down buffer for a lifting device, in particular a chain hoist, includes two opposing end surfaces and at least two mutually spaced web elements extending between the end surfaces. The shut-down buffer is defined by the end surfaces, between which a through-opening for passage of a load-bearing element of the lifting device extends through the shut-down buffer.

Abstract: A system for controlling a winch assembly having a hydraulic motor, a drum, a cable, and a cable tension sensor. A controller is configured to access a winch load threshold defining a hold zone and a reel zone, and one of the hold zone and the reel zone including loads greater than the winch load threshold and another of the hold zone and the reel zone including loads less than the winch load threshold. The controller is further configured to determine whether the winch assembly is operating within the hold zone or the reel zone, and generate a zero flow command while the winch assembly is operating within the hold zone to prevent rotation of the hydraulic winch motor, and generate a pressure differential command while the rotatable winch drum is operating within the reel zone to permit rotation of the hydraulic winch motor.

Abstract: A method and equipment for controlling a lifting device, wherein a main steering direction of the control device used by an operator is selected from at least two options; the impact of the control device on the directions of motion of the lifting device is changed according to the selected main steering direction; and the lifting device is controlled with a control device.

Abstract: A substrate case includes a shaft portion around which a sheet-shaped substrate having a circuit area in which a circuit manufacturing process is performed is wound; and a cover portion that accommodates the substrate in the state of being wound around the shaft portion, the shaft portion having a holding portion that holds an area different from the circuit area at a winding start portion of the substrate.

Abstract: A bridge crane arrangement includes at least one main girder having a central web and a bottom flange; end girders supporting opposite ends of the main girder; a slide arranged between an end girder and the main girder, the slide allowing the movement of the end girder in relation to the main girder in at least its longitudinal direction and the rotation of the end girder and main girder in relation to each other; and a restrictor to restrict the movements between the end girder and the main girder. On the top surface of the end girder, there is arranged a support platform wider than the bottom flange, the slide includes a slide surface arranged on the top surface of the support platform and/or the bottom surface of the bottom flange, and the restrictor is arranged to the support platform on both sides of the bottom flange.

Abstract: The invention relates to a foldable suspended-ballast guide for a crane with suspended ballast, comprising at least two lattice pieces which are pivotally connected to each other by means of at least one swivel joint, and a swivel drive for changing the swivel angle or for changing the ballast radius, wherein the suspended-ballast guide can be arranged on the crane via the first lattice piece, characterized in that the second lattice piece comprises at least one kink joint in order to kink the second lattice piece downwards or backwards in the direction of the crane to reduce the ballast radius.

Abstract: A lacing system configured to selectively adjust the size of an opening on an object and allow for the incremental release of the lace within the lacing system. The lacing system can have a reel that includes a housing, a spool supported by the housing, and a knob supported by the housing. The reel can be configured so that cable is gathered in the channel formed in the spool when the spool is rotated in a first direction relative to the housing, and so that cable can be incrementally released from the spool when the spool is rotated in a second direction relative to the housing.

Abstract: A carpet stretching apparatus includes a sleeve that has a first end and a second end. The first end is open. A carpet stretcher extends outwardly of the first end and is rotatable with respect to the sleeve. A locking member releasably engages the sleeve to the carpet stretcher in a first position or a second position. The first and second positions are orientated 90° with respect to each other. An anchor is attached to the second end of the sleeve and releasably engages the carpet.

Abstract: The present disclosure provides an appliance for towing compact loads (e.g., logs), and include an auxiliary winch provided in combination with a main winch on a tractor without the need for separate powering means or the need to transport said auxiliary winch to the area adjacent to the load (away from the main winch/tractor.) The appliance may be provided by upgrading an existing tractor winch by, for example, attaching the auxiliary winch to a casing of the main winch, or to the ground adjacent the tractor with the main winch. The auxiliary winch may be furnished with a driving means powered by disposable powering means on the tractor that may include auxiliary pulley block(s) with an accompanying accessory to provide attachment thereof to the terrain, with each pulley block suitable for guiding an auxiliary cable in the area outside of the line between the main winch and the load.

Abstract: An assembly includes a hoist or a winch, a cable, and a fleet angle sensor. The fleet angle sensor includes a frame disposed around an opening and the cable extends through the opening. A first photodetector with multiple light-receiving zones is mounted on the frame. A first light source is mounted on the frame opposite the first photodetector. A shield device is under the frame and includes a shield frame and a cover. The shield frame is around the cable and the cover extends from the shield frame toward the cable, with the cable extending through the cover.

Abstract: A lift crane includes a carbody; a rotating bed comprising a counterweight support frame; a boom; a counterweight unit supported on the counterweight support frame in a moveable relationship with respect to the counterweight support frame; and a counterweight unit movement device connected between the rotating bed and the counterweight unit to move the counterweight unit toward and away from the boom. The crane is configured such that during crane operation, the moment generated by the counterweight unit acts on the rotating bed predominantly through the counterweight support frame. Alternatively, the crane can include a mast. In some embodiments the same basic crane is configured to be set-up with two different counterweight options, i) a counterweight unit directly supported on the counterweight support frame and ii) a counterweight support beam moveably connected to the remainder of the rotating bed and a counterweight unit supported on the counterweight support beam.

Abstract: A hoist is disclosed. In various embodiments, the hoist includes a torque tube defining a longitudinal axis and having a radially outer surface; a cable drum having a radially inner surface; and a bar spline disposed radially outward of the torque tube and radially inward of the cable drum and configured to transfer a torque from the torque tube to the cable drum.