Abstract: Parallelogram lift for motor vehicles, comprising a pair of base longitudinal members (2), a pair of runways (12) and at least two pairs of arms (14, 14?) hinged to the longitudinal members (2) and to the runways (12) and associated with members (30) for varying the inclination of said arms (14, 143 to the longitudinal members (2) and to the runways (12), wherein each longitudinal member (2) comprises a fixed base (4, 6) anchored to the floor, and a counter-base (8) slidable axially relative to the fixed base and carrying the arms (14, 143) hinged thereto, and also comprises for each longitudinal member (2) an auxiliary arm (22) hinged at its lower end to a support (26) fixed to the floor in alignment with the longitudinal member and pivoted at its upper end to the central point (20) of the adjacent main arm (14), the length of the auxiliary arm (22) between its pivotal axes (24, 20) being equal to one half the length of the main arms (14, 14?).

Abstract: The invention involves a scissor jack having four arms hingedly arranged to provide two opposite elbows between a base and a load support. A pair of trunnions at the elbows is connected by a threaded shaft. A movable brace is supported between the arms. The brace strengthens and adds support to the jack assembly. In a preferred embodiment, the brace includes a guide assembly which slidably engages the shaft and connectors pivoted between the guide and each of the four arms. The connectors are extensible socket and rod arrangements. Each connector includes a coil spring located over the rod in the socket. The four springs are compressed on extension of the jack to assist in lifting a load.

Abstract: A lift apparatus for lifting a structure includes a base, a bell crank pivotably coupled to the base, a coupling member for engaging a portion of the structure, pivotably coupled to the bell crank device via at least one lift member, and a longeron assembly having a pivoting apex and configured to pivot about the base. The apparatus also includes a biasing device having a first end pivotably coupled to the bell crank device for applying a force thereto, the bell crank device converting the first force to a second force and applying the second force to the coupling member via the lift member for lifting the structure. A movement of the structure is compensated by rotation of portions of the longeron assembly which repositions the apex, the bell crank, and lift arm to maintain the structure in the lifted position.

Abstract: A man-carrying vehicle has a chassis, which can be reduced for the vehicle to be easy to store, put away and transport; the chassis includes a front part, a rear part, and a stretching and reducing device interposed between the front and the rear parts; the stretching and reducing device includes first and second stationary components, first and second crank and connecting rod combinations, and a stretching and reducing assistant unit; the first and the second stationary components are fixedly joined on the front and the rear parts respectively; the crank and connecting rod combinations are interposed between and pivoted to the stationary components; the stretching and reducing assistant unit is interposed between and pivoted on one of the stationary components and one of the crank and connecting rod combinations to provide power to change position of the front part in relation to the rear part of the chassis.

Abstract: An apparatus for mounting a jacking device is provided, which is fixed to a flat surface of a trunk compartment in a vehicle, and can conveniently mount the jacking device through pushing of the jacking device from the front to the rear. The mounted state of the jacking device is maintained by restraining the jacking device from being moved in all directions. The jacking device mounting apparatus includes a lower plate fixed to a flat surface in a vehicle, on which a jacking device is mounted; an upper plate placed over the lower plate and spaced apart from the lower plate to from a first space therebetween, a center portion of the upper plate being cut to form a second space; a locking pin for locking a forward of the upper plate; and locking-pin fixing brackets for fixing the locking pin.

Abstract: A wheel ornament installation tool includes a supporting portion and a rotatable portion rotatably coupled to the supporting portion. The rotatable portion is configured to apply a force against a wheel ornament during rotation of the rotatable portion. The supporting portion is configured to engage a stationary object to support the rotatable portion during application of the force against the wheel ornament.

Abstract: An apparatus for exerting a force on a load, comprising at least a first spring system and a second spring system, which two spring systems are coupled with the load and produce forces that are applied to the load, wherein an adjusting device is provided coupled with the load, which is equipped with at least one coupling with which the first spring system and/or the second spring system are/is coupled, and which adjusting device is designed for moving the coupling subject to an adjustment of the load, wherein the first spring system has a linear spring characteristic and is coupled with the load, and wherein the second spring system is coupled with the coupling at a side of the coupling removed from the load, and wherein the coupling is designed for adjusting the second spring system subject to a predetermined spring characteristic of the second spring system such that, at the side of the load, the combination of the coupling with the second spring system possesses a force path diagram having a linear charact

Abstract: A diving board lift assembly for lifting a diving board from a substantially horizontal diving position to a substantially upright position is provided. The diving board having a diving end and a hinged end with the hinged end hingedly connected to a diving board support member. To raise the diving board, an actuator is rotated in a clockwise direction which rotation causes a portion of the top assembly to the lift mechanism to make contact with and raise the diving board to a near vertical position. To lower the diving board to its original position, the actuator need simply be rotated in a counter-clockwise direction.

Abstract: A vehicle stabilization device for use in stabilizing a vehicle to enable safe and rapid victim extrication operations by first responder and other personnel. The device includes a base plate for enabling its emplacement on an underlying support surface beneath the vehicle to be stabilized. First and second extender members, each having a base end and a distal end, are hingedly connected to each other at their distal ends. The base ends are rotably mounted to the base plate and are moveable toward each other from an initial spaced position. This reduction of spacing between the base ends acts in conjunction with the hinged attachment between the distal ends to increasingly incline the extender members with respect to the base plate and thereby increasingly elevate the distal ends above the base plate. A vehicle contact and support member is secured to the distal hinged ends, and elevates with the distal ends of the extender members until contact is made with the overlying portion of the vehicle.

Abstract: A patient transport cot comprises a height adjustment component coupled to the patient transport cot and configured to raise or lower the cot to a plurality of heights. The patient transport cot further comprises a mechanical height indicator, which comprises at least one height setting, wherein each height setting corresponds to a target cot height. The mechanical height indicator further comprises a moving height marker configured to move with the cot as the cot is raised or lowered, wherein the cot is adjusted to the target cot height when the moving height marker is aligned with the height setting.

Abstract: A spindle drive and patient positioning system is provided. The spindle drive includes a drive that is operative to drive a spindle nut. An axially transportable spindle is circled by the spindle nut. A catch nut that is not in mutual engagement with the spindle has a predefined distance to the drive. When the spindle nut fails, the spindle is operative to move the catch nut into mutual engagement with the spindle. A switching element is fixed to the catch nut and includes an emergency off switch, which is activated by a switching sensor.

Abstract: A method for lifting, stacking or otherwise manipulating a length of pipe is provided which includes the steps of providing a longitudinally orientated base frame; providing a movable carriage supported on the base frame, and providing a pipe lifting structure mounted to the carriage for independently supporting a length of pipe in a longitudinal position with respect to the base frame. The pipe lifting structure has first and second telescopically extendable lifting arm assemblies that are pivotally mounted to a longitudinally orientated pipe trough for supporting a length of pipe in the pipe trough. A means for pivotally raising and lowering the lifting arm assemblies and thereby said pipe trough and support length of pipe is provided. The method includes providing means for pivotally raising and lowering the lifting arm assemblies remotely located from the pipe lifting structure. Hydraulic cylinders and rams are provided to move the lifting structure.

Abstract: In various embodiments, a cable drop support system is provided including a base adapted for attachment to a surface; at least one segment connected to the base; and, a cable receptacle attached to a portion of the at least one segment, the cable receptacle being structured for receiving therein at least a portion of a cable.

Abstract: An illuminative jack comprises a lighting device disposed in a top plate and connected to a switch, thereby, when the user switches on the switch, the lighting device will be radiated by the power supplied by a power source, thus providing an illumination effect.

Abstract: The invention relates to a tool, suitable for body shops for correcting damaged vehicle body sheets, but also suitable for saving people trapped in a damaged vehicle and also for other applications that require opposite codirectional forces of high intensity with a rectilinear movement of a movable element, which is practical and independent from external energy sources. The tool (1) uses, as source of rotational movement, a common electric screwer (2) connected in a releasable way within the box (70) of said tool, with its driven shaft connected to a screw mechanism which supports in translational movement a movable element (10). The box of the tool has a front face (8) and a rear face (23), arranged at the lend of the side faces (29, 29?) and the lower face kept together by the four screw pulling elements (28, 28?) tightened by respective four nuts (25). On the front face (8) a fixed element (9) is connected, in which telescopically slides the movable element (17) operated by the screwer (2).

Abstract: A device for lifting an item such as an article of furniture to gain access underneath for performing a variety of tasks. The device comprises a horizontal actuating beam attached via a hinge member to one or more horizontal support beams that are affixed to the object frame. The horizontal actuating beam is also connected to the one or more horizontal support beams by one or more biasing members. The horizontal actuating beam includes a pivoting axle at one end that is attached to the one or more horizontal support beams and a wheel at the other end that presses downward on a surface and acts as a support point when the front of the object is raised up off of the surface.

Abstract: The inventive technology relates to methods and apparatus for providing supplemental support for items used in manual tasks and may include one or more of the following features: a supplemental support apparatus, a supplemental support method, techniques for providing supplemental support in a compact manner, techniques for providing supplemental support in a variably-adjustable manner, techniques for correlating supplemental support to an overall workspace height, techniques for maintaining a parallel support surface through a variable-adjustment range, and techniques for retaining an item on a support surface.

Abstract: The disclosed invention is a portable vehicle lift for elevating a motor vehicle. The lift includes spaced apart beams which are positioned under the vehicle, each beam has a plurality of hinged strut pairs, each with associated threaded collars. Strut pairs are moved together or apart by directionally rotating a threaded shaft through the threaded collars. Supplemental lift springs may be positioned along the shaft to selectively engage and urge the strut pairs during operation.

Abstract: A novel device and method for positioning a vehicle jack in relation to a vehicle. The device uses a sensor which communicates with an indicator located at the point on the vehicle frame for proper placement of the vehicle jack, or jack point. The sensor detects the indicator's position when brought into substantial alignment and proximal range with the indicator to determine the proper position of the vehicle jack in alignment with the jack point. Upon detection of the indicator by the sensor, the display of the device provides a visual or auditory signal to the jack operator indicating location of the jack point.

Abstract: A non-metallic laboratory jack comprises two oppositely disposed reinforcing elements having I-beam cross-sectional configuration disposed in the central elevational region of the jack; a base position below the reinforcing elements and a load-bearing platform positioned above the reinforcing elements and a plurality of pairs of cross links. A rotatable threaded shaft associated with the reinforcing elements.

Abstract: The subject of the invention is the excavation of trees by disrooting then by a hydraulic equipment, when the power machine (1) is connected in a rotatable manner to the timber holding frame (9), the supporting frame (3) and the elevating working cylinder (10); the timber holding frame (9) is connected to the timber holding equipment (8), wich is able to catch the timber (6) by its arms (7); the timber holding frame (9) is connected to the throwing working cylinder (5) and the supporting frame (3) is attached in a rotatable manner to the supporting cylinder (4); and in case of articulated setting-up of the supporting frame (3) the movement of the two parts of the supporting frame is done by the adjusting tool (2); then the upper part of the throwing working cylinder (5) is connect to any part of the supporting frame (3); furthermore the other end of the elevating working cylinder (10) is connected to the supporting frame (3) or in case of rigid joint setting-up of the supporting frame (3) one end of the adjus

Abstract: A portable tubular motorcycle lift is provided which utilizes a scissor frame configuration. The scissor frame includes an inner lifting structure and an outer lifting structure rotatably hinged about a common center fulcrum. An upper cradle support is attached to the inner and outer lifting structures. The motorcycle lift has a deployed configuration and a folded, stowable non-deployed configuration which allows the lift to be transported similar to a dolly. To provide the required forces to lift a large motorcycle, an articulated lifting system which includes a jacking device, lifting arm, and linkage arm, is integrated within the inner and outer lifting structures. Other features of the motorcycle lift include a bracing member, rear support section, removable ramp, well chock, remote jacking system, remote pressure release feature, and removable and positionable auxiliary jacking device positioned with the upper cradle support.

Abstract: A lift tool and method useful for installing a repaired clutch assembly or flywheel in a vehicle bell housing. The tool includes (a) a mounting bracket which can be secured to existing threaded openings in the bell housing, (b) an elongated lift arm pivotably attached to the mounting bracket, (c) a rail supported by the elongated arm, (d) a hook carried by the rail and being moveable along the rail, (e) a hanger bracket which is connected to the hook and which is able to support the clutch assembly or flywheel, and (f) power source for selectively raising or lowering the elongated arm. With proper safety precautions, the lift tool can also be used in the removal of a clutch assembly or flywheel from a bell housing.

Abstract: A portable reel jack for supporting and lifting large spools of heavy cable, wire and the like includes a hydraulic lift with an extendable piston rod. A stanchion that is pivotally connected to the piston rod carries a spool support and remains vertically oriented during movement of the piston rod relative to the cylinder. Moreover, when the piston rod moves vertically away from the base in a lifting motion, then the stanchion moves laterally away from the hydraulic cylinder. As the spool is being lifted off of the ground by the hydraulic jack, the load-bearing location of the rod that carries the spool moves increasingly farther away from where the operator is standing to operate the lifting action of the portable reel jack. Additionally, the spool support has the flexibility of three different height elevations for carrying the rod on which the spool is in turn carried.

Abstract: A centering device for a platform lift which includes a lifting mechanism for moving objects from a first to a second height. The lift mechanism has a base, at least a first and a second set of legs, and a platform. The first and second sets of legs each have first opposite ends pivotally secured to the base and the platform, respectively, and second opposite ends provide with traveling members to cooperate with the platform and base, respectively. The platform has a lower portion including a rail upon which the traveling members of the first set of legs traverse. Between the ends of each of the first set of legs, having the traveling members, and the rail, a centering device is disposed to provide alignment of the traveling members and the rails.

Abstract: A mechanical jack comprising a ratcheting gear track connected to a frame. A bell crank arm is pivotally connected to the frame. An elongate handle is rotatably connected to the bell crank arm. A gear pin is connected to the elongate handle. The gear pin is for engaging the ratcheting gear track. An elevator arm is pivotally connected to the frame. The elevator arm is slidably connected to the bell crank arm, and a lift pad is connected to the elevator arm.

Abstract: A mobile appliance lift tool is provided which includes a cart having a frame and a pair of legs. Each leg has a sleeve pivotally attaching the leg to an end of the frame. Each sleeve is adapted to travel up and down the leg to selectively move the frame between a substantially horizontal configuration and a substantially inclined configuration. The tool includes a strut, a support platform having a horizontal orientation, a bottom frame, and a lift mechanism engaged between the support platform and the bottom frame to move the support platform toward and away from the bottom frame, while maintaining the support platform's horizontal orientation. The strut is mounted to the bottom frame and pivotally attached to the end of the cart's frame so that the strut is disposed in a horizontal orientation when the frame is moved to either the horizontal or the inclined configuration.

Abstract: A transmission jack and apparatus that can raise and lower heavy objects between a floor surface and a higher elevation is disclosed. The transmission jack and apparatus includes a bottom frame mounted on a plurality of wheels. Pivotally attached to the bottom frame is a pair of hinge elements that support a plurality of support bars, with the support bars always remaining parallel to a ground surface. The support bars can be raised or lower through a pair of metal cylinders and internal rods which are hooked up to a hydraulic pump. A handle attached to the hydraulic pump allows an individual to raise or lower the plurality of support bars by pumping an oil-based hydraulic fluid into the pair of metal cylinders, thereby pushing the out the internal rods, which then engage the hinge elements.

Abstract: A jack for lifting an object includes a base assembly and a jacking assembly. The base assembly has a frame with a base member having a nesting chamber, lifting arms pivotably connected to the base member, and a support member for supporting the object. The support member is pivotably connected to the lifting arms and is disposed parallel to the base member. The support member and the lifting arms pivot with respect to the base member into positions including a fully raised position wherein the support member is lifted away from the base member and a fully lowered position wherein the support members and the lifting arms are at least partly nested within the nesting chamber. The jacking assembly is connected to the base assembly for moving the support members and the lifting arms from the fully lowered position towards the fully raised position.

Abstract: This table comprises scissor arms (1, 2) assembled on a common rotation axis (3) and two thrust shafts (6, 7) shifting by the action of drive means and acting on the opposite sides of the scissor arms (1, 2), causing the tabletop (5) to lift or lower. The drive means comprise: a geared motor (8) providing a rotational movement to a first thrust shaft (6); an anti-rotation support (9) preventing the geared motor (8) from rotating around said first thrust shaft (6), and belts (10) fixed to the anti-rotation support (9) by one of their ends and to the periphery of the first thrust shaft (6) by the opposite end, wrapping around the second thrust shaft (7) with their intermediate area.

Abstract: The invention relates to a jack with supporting parts, which are provided as profiles that have U-shaped cross-sections and lateral profile limbs (15, 17) or which are provided as elements with laterally elevated sheet metal lobes (13). Said supporting parts are pivotally interconnected by joints (5, 6) in such a manner that the lateral profile limbs (15, 17) and/or the elevated sheet metal lobes (13) overlap in the vicinity of the joints (5, 6), and arbors pass through borings in the lateral profile limbs (15, 17) or elevated sheet metal lobes (13). The aim of the invention is to reduce the weight of a jack of the aforementioned type as well as the risk of the profile limb (15, 17) kinking.

Abstract: A lift assembly for raising and lowering a load includes a first member, which is adapted for resting on a reference surface, and a second member, which defines a support surface for supporting a load. The lift assembly also includes a drive assembly, which selectively moves the second member relative to the first member from an initial position to a final position to raise or lower the second member relative to the first member. The drive assembly is adapted to move the second member from the initial position at a progressively increasing speed to an intermediate position and after which at a progressively decreasing speed until the second member is moved to the final position.

Abstract: A lifting apparatus includes a plurality of preferably four carriages, each carriage supporting a lifting boom. Two booms are pinned together to define a first pair, a second two booms being pinned together to define a second pair. Each pair of booms and connected carriages are placed on a preferably common travel path. Rigging can include a horizontal beam that extends between the first pair of booms and the second pair of booms. The beam can be attached to the pinned connection of each pair of booms with a sling. A powered motor-driven winch is used to power a cable that is wound between sheaves on the lower end portions of a pair of booms that are connected together. During use, the winches are simultaneously or nearly simultaneously operated to elevate the first pair of the booms and the second pair of booms at about the same time. The horizontal beam that spans in between booms is elevated.

Abstract: A variable reach device for attachment to a boom of a lift truck to increase the range of movement of a fork carriage of the lift truck. In one embodiment, the device has a mast connected at one end to the boom and an arm pivotally connected at one end to the other end of the mast. The fork carriage is pivotally connected to the other end of the arm and its attitude or orientation is controlled during movement of the arm. In another embodiment, the reach device provides a purely horizontal movement of the fork carriage to extend the fork carriage away from the boom as the device unfolds and to retract the fork carriage back towards the boom as the device is folded. In this embodiment, the fork carriage is slidably carried by the arm via a lift chain connected to a cam which rotates in proportion to the rotational movement of the arm relative to the mast.

Abstract: A pneumatically actuated lever arrangement provides the force to open a pry which operates in cooperation with a fixed wedge to efficiently separate nailed boards to make recovery and reuse of the boards economically feasible.

Abstract: An adjustable height platform comprising a bottom platform, a top platform and a scissors linkage secured between the top and the bottom platforms. The scissors: linkage includes scissors legs which pivot about a pivot axis. A drive system provides a horizontal force to the scissors linkage. An unlocking mechanism lifts the pivot axis in response to the horizontal force and unlocks the scissors legs from a collapsed, retracted, and aligned position. After unlocking the legs, the horizontal force continues to raise the top platform with respect to the bottom platform.

Abstract: An electric lift including a base, an upright boom support extending from the base and terminating in an end, and an elongated boom having a first end pivotally coupled to the end of the boom support and a second end. An electric power apparatus is coupled between the base and the lifting member for incrementally moving the lifting member between a lowered position and a raised position. A remote control is coupled to the electric power apparatus for controlling the operation thereof.

Abstract: To facilitate an operation for feeding a jack part into a desired position. A jack part 2, which extends when pressure oil from an oil pressure supply and discharge part 1 is supplied, and contracts when oil is recovered to the oil pressure supply and discharge part 1, is a pantograph type, and a wheel 5 is held in front which is one end in a folded state.

Abstract: A lawn mower rack is formed of a structural base for resting on a support surface. First and second spaced apart longitudinal rails supported by the base and adapted to receive wheels of a lawn mower thereon. A first manually operated lifter is provided for elevationally supporting rearward portions of the longitudinal rails above the base and a second manually operated lifter, independent of the first lifter, is provided for elevationally supporting forward portions of the longitudinal rails above the base so that thereby only approximately one half of the weight of a lawn mower need be lifted at a time.

Abstract: A jack for lifting an object includes a base assembly and a jacking assembly. The base assembly has a frame with a base member having a nesting chamber, lifting arms pivotably connected to the base member, and a support member for supporting the object. The support member is pivotably connected to the lifting arms and is disposed parallel to the base member. The support member and the lifting arms pivot with respect to the base member into positions including a fully raised position wherein the support member is lifted away from the base member and a fully lowered position wherein the support members and the lifting arms are at least partly nested within the nesting chamber. The jacking assembly is connected to the base assembly for moving the support members and the lifting arms from the fully lowered position towards the fully raised position.

Abstract: A lift device has a generally A-shaped base frame, a leg frame connected to the generally A-shaped base frame, a support post disposed on the leg frame, and a cantilever frame disposed on the support post. The cantilever frame has a pair of parallel upper links and a pair of parallel lower links. A jack is disposed on the generally A-shaped base frame and disposed between the parallel lower links. An L-shaped outer frame is disposed between the parallel upper links and disposed between the parallel lower links. An inner frame is inserted in the L-shaped outer frame. A collar encloses the L-shaped outer frame. An end hook is disposed on an end of the inner frame.

Abstract: The invention describes a spreading tool (1) for widening openings, in particular for use in extricating trapped persons, having a drive (3) to which a pressurised medium (4) is applied and, coupled therewith in order to effect a synchronous counter-pivoting motion in the form of cutting and/or spreading elements, pivotably mounted pivot arms (16, 17) in a housing (15) accommodating the drive (3). The pivot arms (16, 17) are drivingly linked to a pressure ram assembly (48) which is displaceable in the direction of a parallel extending longitudinal central axis (53) substantially parallel with a pivot plane (20) of the pivot arms (16, 17).

Abstract: A pair of horizontally spaced and horizontally extending part support rails or elongated platens are each guided and supported for vertical movement by a pair of guide and support members having linear bearing blocks mounted on vertical guide rails attached to corresponding vertical housings. A bell crank is pivotally supported adjacent each housing and is pivotally connected to the corresponding bearing block by a first link member. Second and third link members pivotally connect each pair of bell cranks for each platen to each other and to a crank arm mounted on a horizontal crankshaft extending laterally below the platens. A combined electric motor and gear reducer have an output shaft coupled to one end portion of the crankshaft, and an electric brake unit is connected to the motor shaft. An overtravel arm is also secured to the output shaft of the gear reducer and actuates an overtravel switch connected to control the electric motor.

Abstract: A scissor jack assembly with double-lead Acme threaded screw. Through use of urethane or similar material as a braking means, the jack assembly is operable with a self locking action over a wider range of loads and especially at lower loads where an Acme loading phenomenon that results in said self locking action has previously been unattainable. Faster and smoother jack operation is made possible by employing a thrust bearing, including a plurality of roller or ball bearings, with the jack assembly. A spacing washer is also provided to retain the threaded shaft within the trunnions of the jack assembly, in order that the ends of each of the trunnions need not be machined or stamped to retain the trunnions within the jack assembly. Utilizing such a spacing washer decreases the costs involved with manufacturing the jack assembly, while increasing the ability to repair the jack assembly.

Abstract: A lift assembly includes first and second elevator structures, each including a first scissors section, a second scissors section pivotally connected to the first scissors section and supporting a lift shaft which extends between the first and second structures, at least one intermediate scissors section pivotally connected to the second scissors section, and an upper scissors section pivotally connected to an uppermost of the intermediate scissors sections and supporting a top bar. First and second side plates upstand adjacent the first and second structures, each having therein an elongated slot, the lift shaft being disposed in the slots. A lower pulley is mounted proximate each of the base bars on a common drive shaft. An upper pulley is mounted proximate an upper end of each of the side plates. A strand extends from each of the lower pulleys to each of the upper pulleys, and thence to the lift shaft.

Abstract: The present invention 10 discloses a small vehicle lift generally consisting of a base assembly 14 and a lift platform assembly 16 secured to each other by a pivot pin 18 located at one end of the base 14 within the anti-tilt extension members 20. The lifting action of the platform 16 is angular to the base 14 and is accomplished through a hydraulic lifting device 22 which is pivotally anchored to the base 14 as well as to the lifting platform structure a short distance from the main lift pivot point. When actuated, the hydraulic lift 22 forces the rotation of the platform 16 about the pivot pin to a maximum 60° displacement. Additionally, there is a safety pin 24 mounted on the elevated rear portion 26 of the base that slides in and out and that acts as a safety device in case of hydraulic jack failure when the lift is in full up position. This allows for easy and safe access to the underside of the mower for maintenance and repair.

Abstract: A lifting rack for elevating motorcycles or other two-wheeled vehicles for ease of maintenance. The rack comprises a channel with a base plate that may be laid flat on a ground or floor surface, and upstanding side walls that provide lateral stability for a two-wheeled vehicle as the vehicle wheels are positioned on the base plate. The rack also comprises ground or floor surface engaging rails. A linkage mechanism connects the rails to the channel. A hydraulic motor, anchored on the rails, applies a lifting force to the linkage elements, thereby creating a vertical lift force component, the base plate supporting the vehicle wheels as the vehicle lifted. One end of the channel may be separated from the main portion of the channel and separately articulated on the rails, whereby one vehicle wheel may overhang the end of main channel portion.

Abstract: A scissors-type lifting platform, in particular for motor vehicles. The lifting platform has at least one horizontal bearer element for the load to be lifted and a scissors arrangement on the underside of the bearer element. The scissors arrangement has scissors spars which are swivellably connected with one another and are supported on a base plate. An expansion lever is rotatably hinged on one of the scissors spars and is actuatable by means of an actuating element for the purpose of swivelling the scissors spars. A supporting surface for supporting a support device is arranged on the other scissors spar. According to the invention, the technically simple and particularly wear-resistant expansion mechanism has at least one rotatably lodged rolling body for the support of the expansion lever.

Abstract: A mobile floor crane has a tubular, rigid stanchion that supports a boom pivotally connected to the top end of the stanchion. The base end of the stanchion is disposed between the adjacently disposed mid portions of the tubular, rigid legs of the crane. A support member extends transversely through the mid portions of the legs and the base end of the stanchion and supports the stanchion. In an alternative embodiment, the legs have telescoping members, and a rolling member is provided on the base end of the stanchion to provide mobility for the crane when the telescoping members are detached for storage.

Abstract: To facilitate an operation for feeding a jack part into a desired position. A jack part 2, which extends when pressure oil from an oil pressure supply and discharge part 1 is supplied and contracts when oil is recovered to the oil pressure supply and discharge part 1, is set to a pantograph type, and a wheel 5 is held in front which is one end in a folded state.