Abstract: An elevator safety system and elevator equipment. The elevator safety system includes a safety unit which has a safety device and a trigger, the trigger is connected with the safety device and outputs an acting force from its output end to the safety device for actuating the safety device to perform safety operation to the elevator, the safety unit further includes a force amplifying device provided between the trigger and the safety device for amplifying the acting force output from the output end and then transmitting the amplified acting force to the safety device.

Abstract: A banded frictional power transmission belt with a satin-weave, band fabric wrapped around the outside of the belt. The band fabric may be a satin weave of warp and weft yarns and may include a high-strength, wear-resistant yarn such as aramid fibers, and may include a high-adhesive yarn such as nylon and/or cotton. The aramid and/or nylon fibers may be staple or filament fibers. The band fabric may be treated. The band fabric may have a 4×1 satin weave. The band fabric may be wrapped on a bias. The high-adhesive yarn may predominantly reside on the inside of the fabric contacting said V-belt, and the high-strength, wear-resistant yarn may predominantly reside on the outside of the fabric which is the outer, pulley-contacting surface of the belt. The banded belt may be a V-belt, round belt, dual-V-belt, or multiple V-belts, or have another friction belt profile.

Abstract: A bicycle rear derailleur is configured to be mounted on a wheel shaft on a bicycle frame. The bicycle rear derailleur includes a base component, a movable component, a linkage assembly, a chain guide, and a mount assembly. The base component is configured to be mounted on the bicycle frame. Two opposite ends of the linkage assembly are pivotally disposed on the base component and the movable component respectively. The chain guide is pivotally disposed on the movable component. The mount assembly includes an adapter, a bushing, and a fastener. The adapter is configured to be fixed on the bicycle frame. The base component is stacked on the adapter. The bushing is configured to be disposed through the bicycle frame, the adapter and the base component and is configured for an insertion of the wheel shaft. The fastener is fastened on the bushing.

Abstract: A method of fabricating a chain tensioner includes bending a sheet metal blank to form a connector portion perpendicular to a flat base. The connector portion has an arm extending beyond the base. The method further includes stamping an end of the arm to curl the end into a hollow cylinder having an axis perpendicular the flat base. Curling the end into a hollow cylinder may be performed in a series of stamping operations. The blank may define a gap which extends around a narrower portion of the arm after the end is curled into the hollow cylinder.

Abstract: A mobile pipelayer machine includes a machine chassis having a forward end, a rear end, a first side, and a second side, and a boom extending from the first side of the machine chassis. The mobile pipelayer machine also includes a movable counterweight system extending from the second side of the machine chassis, the movable counterweight system being selectively movable to change a center of gravity of the machine in at least one of a forward or a rearward direction.

Abstract: A device for moving reels, including at least one supporting upright associable with a transport vehicle, and at least one head for manipulating the reels connected to the support upright; the manipulation head includes at least one first grip member, provided with a first terminal element adapted to grasp the reel at a first opening of its central through hole.

Abstract: The invention pertains to a crane, a method for assembling a crane and a method for disassembling a crane. The crane comprises: a first mast which is tiltable relative to the crane base around a first mast pivot axis into an inclined mast operating position; and a receiving device, which is adapted to receive the mast section of the first mast, which receiving device has a receiving device central axis parallel to the central mast axis, and a mast section guide which is adapted to guide movement of the mast section relative to the receiving device in the direction of the receiving device central axis, wherein the receiving device is connected to the crane base and the first mast is tiltable relative to the crane base around the first mast pivot axis.

Abstract: A catching device for a traveling body in an elevator system and a method for unblocking the catching device include at least two retaining units that can be brought into a blocked state and into an unblocked state, the retaining units retaining the traveling body on a rail in the blocked state. The retaining units are connected to the traveling body such that each of the retaining units and the traveling body can be slid relative to each other within a limited sliding displacement. A first sliding displacement of a first of the retaining units is longer than a second sliding displacement of a second of the retaining units.

Abstract: A sheet conveyor includes: a holder that detachably holds a sheet roll; a rotation measuring device that measures a rotation amount of the sheet roll; a conveyance roller that conveys a sheet pulled out from the sheet roll held by the holder; a tensioner that is provided between the holder and the conveyance roller and that contacts with the sheet pulled out from the sheet roll toward the conveyance roller; a position detector that detects a position of the tensioner; a motor that generates driving force for rotating the conveyance roller; and a controller that controls the motor. The controller estimates a diameter of the sheet roll based on a conveyance amount of the sheet caused by rotation of the conveyance roller, a rotation amount of the sheet roll measured by the rotation measuring device, and a position of the tensioner detected by the position detector.

Abstract: Provided is a hoist arm structure having top and bottom ends, and an attachment element to releasable attach the bottom end of the hoist arm structure to an attachment location of a utility vehicle whereby the hoist arm is able to pivot relative to said attachment location, the hoist system further comprising an adjustment winch having an adjustment cable extending therefrom with adjustment cable having a distal end opposite the crank, and such distal and adjustment winch adapted for securing to respective structural elements of a structural frame system, wherein such structural elements are located on opposite lateral side of the utility vehicle.

Abstract: The present disclosure relates to a telescopic boom for a crane, wherein the telescopic sections of the telescopic boom each comprise at least one main telescopic part and at least one additional telescopic part and wherein the main telescopic part and the additional telescopic part are arranged above one another. The disclosure further relates to a crane having a corresponding telescopic boom.

Abstract: An easy grease filling machine is disclosed. The grease filling machine comprises a drum cover, a pump body that goes through the drum cover, a grease pressing disc fitted on the pump body. The periphery of the drum cover is configured with a quick locking mechanism compatible to the rim of the grease packing drum and fixed with the drum body, and is matched by a grease pressing disc with its size automatically changeable when it moves up or down inside the drum body based on the different diameters of the drum body from bottom to top. The grease pressing disc comprises a disc body and a grease scraping skirt configured on the outer periphery of the disc body with its cross section shaped like an inverted V.

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 cable hoist system for a spare tire carrier in a vehicle includes a housing; a drive cable; a reel assembly; and a drive mechanism. A first gear assembly of the drive mechanism includes a control plate member connected to a first gear using at least two frangible connectors. The at least two frangible connectors connecting the control plate member and the first gear provides a frangible connection in the first gear assembly such that, when the first gear assembly is subject to a force exceeding a predetermined value caused by momentum of a spare tire applied through the reel assembly and a second gear of a second gear assembly, the at least two frangible connectors break to allow the first gear to move relative to the control plate member such that the second gear and the reel assembly can rotate to allow for pay out of the drive cable.

Abstract: A chain tensioning device which combats natural build-up of chain slack. In controlling the chain slack, the torque at which a chain jumps occurs is delayed resulting in a higher jump torque performance.

Abstract: An electrical actuator for a bicycle front derailleur making use of a standard wireless remote control (RC) servo unit relying exclusively on highly efficient spur gearing reduction and facilitating highly accurate derailleur positioning thereof through an integral digital magnetic rotary encoder with assembly thereof sealed in a two-piece housing and serving to transmit actuation effort thereof directly to actuation shaft of a front derailleur.

Abstract: A system includes an air chamber and an oil capture cavity. The air chamber includes an inlet to receive pressurized air from a gas turbine engine. The oil capture cavity is positioned between the air chamber and an oil sump supplying lubricating oil to the gas turbine engine. The oil capture cavity includes an auxiliary vent formed in a base of the oil capture cavity. A seal may separate the oil capture cavity from fluid communication with the oil sump. A nozzle provides fluid communication between the oil capture cavity and the air chamber. The nozzle is configured and positioned to direct a stream of the pressurized air into the oil capture cavity against an opposite wall of the oil capture cavity to create a quiescent zone at the base of the oil capture cavity. The quiescent zone includes the auxiliary vent.

Abstract: A locking device for a telescopic boom, in particular of a mobile crane, has an actuator for generating an actuating force, a driver that is reversibly coupled, during a telescoping movement of the telescopic boom, to a locking bolt, which is secured at a boom extension segment of the telescopic boom, and to be moved under the action of the actuating force for adjusting the locking bolt between at least one locking position and a release position. A driver bolt can be moved reversibly by the actuating force between a carry-along position gripping an inner boom extension segment and an empty running position not gripping a boom extension segment. A slotted actuating link is configured for a joint movement of the locking bolt and the driver bolt. A movement plane of the slotted actuating link is oriented perpendicularly to the telescoping direction of the telescopic boom.

Abstract: The invention provides a lifting assembly comprising a support structure (4) arranged to support a load (2) suspended from the support structure, a guide line (501) arranged to extend from a first location, to a second location, a wheel assembly (601) with one or more wheels (621, 622, 623) arranged to engage, and roll along, the guide line (501), and a control line assembly (701) arranged to extend from the wheel assembly (601) to the load (2), wherein the lifting assembly comprises a retainer (801) arranged to connect, between the first and second locations, the guide line (501) to the support structure (4).

Abstract: The disclosure relates to a mobile crane comprising a superstructure having at least one bearing point for pinning on a boom, wherein the bearing point comprises two spaced apart side parts that each have a bore for receiving the pin; and wherein the boom comprises at least one connection part that is provided with a bore and that can be introduced between the side parts such that a common connection pin can be pushed through the bores of the side parts and the connection part, wherein the clear width between the side parts is larger than the width of the connection part of the boom, and wherein a step pin is provided as a connection pin and its formed shoulder forms an abutment for the connection part of the pinned boom in the pinned position.