Abstract: The invention relates to apparatus for presenting and orienting a box (B) in order to enable articles to be removed or stored. The apparatus is characterized by the fact that it comprises a pair of parallel hinged arms (4) which are extended by a pivoting box support (5), the hinged arms (4) being movable both ways between a low position and a high position, in both of which positions the support (5) is substantially horizontal, thereby enabling the box (B) to be placed on the support (5) or to be removed therefrom, the arms moving via an intermediate position in which the support (5) is inclined relative to the horizontal and facilitates access to the inside of the box (B) to remove said articles or to put them into place.

Abstract: A jack stand for lifting and supporting a snowmobile which comprises a base frame, preferably on wheels, a front elevating post and two rear elevating posts pivotably attached to the base frame, and a linkage assembly connected to the elevating posts such that the elevating posts all move simultaneously and remain parallel to one another when the elevating posts are pivoted between an elevated position whereat the elevating posts are substantially vertical and a collapsed position whereat the elevating posts are substantially horizontal. The elevating posts each have an outer end constructed and arranged to interface with a portion of the snowmobile. The jack stand also preferably has a latching mechanism that locks the jack stand in its elevated position, and a lever bar selectively attachable to the front post for aiding in moving the jack stand between its collapsed position and its elevated position.

Abstract: A lift dolly is provided for lifting and transporting stand-mounted power tools and the like, with little effort. The dolly includes a pair of platforms and a wheel system having at least three castors extending downwardly from the platforms. The dolly is designed such that one step onto a latching or locking mechanism by the operator causes the wheel system to be forced downward relative to the stand thereby slightly lifting the power tool and stand off of the ground and enabling transport of same via the castors. Another step on the locking or latching mechanism disengages the wheel system and permits gravity to return the stand and tool firmly to the ground for use.

Abstract: An improved hydraulic valve for a camera dolly includes Teflon inserts around a valve pin to reduce vibration and noise. The ratio of movement between the boom control, which controls the up and down movement of the arm on the camera dolly, and opening and closing of the hydraulic valve, is increased to reduce the sensitivity of the valve to boom control movement. The boom control includes ready up and ready down detents which provide the user a tactile indication of where to position the boom control for immediate up or down movement.

Abstract: A camera dolly has an upper arm pivotable on a lower arm. Chains and sprockets within the lower arm raise the upper arm when the lower arm is raised by a hydraulic actuator. Leveling rods maintain a camera platform in a level position as the arm is raised and lowered. A center plate in the lower arm and a brace plate in the upper arm increase the strength and stiffness of the arm. The ratio between the lower sprocket and upper sprocket within the lower arm is greater than 2:1, providing additional arm travel. A structural tube in the upper arm section provides a secure attachment point for a leveling head.

Abstract: A transport cart is provided including a frame having a pair of spaced lower side bars. A plurality of wheels are mounted on the lower side bars of the frame. An elevation assembly is slidably mounted to the frame about a vertical axis and includes a pair of spaced support side bars. Finally, a mechanism is provided for selectively raising the elevation assembly.

Abstract: A device for lifting and positioning building materials at different heights and angles. For example, positioning a sheet of drywall or plywood to be fastened to a ceiling or wall, or subsequently a container of materials such as drywall joint compound for finishing the fastened sheets. The lifting and positioning device comprises a platform assembly upon which to place material to be lifted and positioned. The platform assembly can be pivoted and fixed at any desired angle between horizontal and vertical (0 to 90 degrees) by an indexing arrangement. The platform assembly is pivotally connected to lift arm links. The lift arm links are pivotally connected to a lift arm assembly. The lift arm assembly is pivotally connected to a mast support assembly. The lift arm links, lift arm assembly and mast support assembly form a parallelogram. The platform assembly is raised and lowered by a floor jack placed upon a jack support platform.

Abstract: A lifting mechanism having special utility for snowmobiles that become stuck in the snow. The lifting mechanism enables a single person to lift the snowmobile up and to the side whereby the snowmobile track gains traction on new snow. It comprises a base plate, a vertical support of a plurality of sections, and a ratchet assembly which includes a cable for attachment to the snowmobile. The base plate is designed to facilitate side movement of the support after the snowmobile has been lifted.

Abstract: A lift dolly is provided for lifting and transporting stand-mounted power tools and the like, with little effort. The dolly includes a pair of platforms and a wheel system having at least three castors extending downwardly from the platforms. The dolly is designed such that one step onto a latching or locking mechanism by the operator causes the wheel system to be forced downward relative to the stand thereby slightly lifting the power tool and stand off of the ground and enabling transport of same via the castors. Another step on the locking or latching mechanism disengages the wheel system and permits gravity to return the stand and tool firmly to the ground for use.

Abstract: A lift dolly is comprised of a first castor-based platform and a second castor-based platform. Each platform is secured to an object to be lifted such that when so secured, the first platform extends diagonally upwardly and the second platform extends diagonally upwardly and terminates below the first platform. Downward articulation of the first platform causes lever lifting of its end of the object and also engages and causes downward articulation of the second platform which lever lifts its end of the object. Through continued lifting the lever fulcrum moves toward center increasing the mechanical advantage of the device.

Abstract: A lift table modified to permit user configuration to achieve a plurality of functions is provided. The lift table may be configured for any of these functions by the end user, without the use of special tools or training. In one embodiment the lift table is provided with coupling devices such as pockets, flanges, brackets, etc. which can be coupled to a plurality of standard sized or spaced attachments for multiple purposes such as pallet forklift, tilt/layover, conveyor, turntable and the like.

Abstract: A commercial mower support stand includes a cradle at its top that is adapted to engage a lifting bar that is secured to the front or rear end of a lawn mower, golf cart, or other light vehicle. The cradle is supported by a plurality of upstanding rigid legs that are secured at their respective lowermost ends to a base plate. A pair of laterally spaced apart support legs support a forward end of the base plate and a pair of laterally spaced apart wheels support the rearward end of the base plate when the stand is in its upright position on a support surface. A tube mounted at a predetermined angle to the base plate slidingly receives an elongate leverage handle that is used to manipulate the stand as needed when lifting and lowering a preselected end of a light vehicle. The stand includes storage receptacles for the leverage handle, replacement mower blades, a lubrication gun, or other items and tools.

Abstract: The invention relates to an arrangement for handling objects, such as a hospital bed, whereby the object is moved by the arrangement from a use or starting position to an uplifted working position which facilitates cleaning, servicing and the like of the object under improved ergonomical conditions. The arrangement includes a mobile frame including two frame parts. The arrangement further includes means to adjust and vary the spacing between the frame parts. Each of the frame parts carries a pivotally mounted lifting arm and maneuvering means for swinging the lifting arm between a generally horizontal starting position and an uplifted position. The lifting arm includes a hook device and a lever arm which are configured for engagement with the object to be handled.

Abstract: A conventional hydraulic engine hoist equipped with a pair of support arms attached to the frame members of the hoist. One of the support arms is fixedly attached to a vertical frame member and the other support arm is attached to a horizontal fame member. The first support arm has a series of pins mounted thereon, and the second support arm has a forked end which cooperates with the pins to prevent the horizontal frame member from moving downward.

Abstract: Dolly apparatus for hauling loads on a pitched surface includes frame structure secured to wheels, with the wheels being adjustable in height so that the dolly may be moved along a pitched surface with the load maintained in a proper horizontal orientation. Different embodiments are disclosed, which embodiments may be used for different types of loads. One embodiment is a relatively simple embodiment which may be used for a relatively light load, and a second embodiment is a relatively complicated embodiment which may be used to transport heavier loads. The second embodiment includes wheels which may be oriented ninety degrees for moving in two directions, for example for moving a load to a specific location in one direction and then moving it in a second direction for specifically positioning the load.

Abstract: A toilet lifting and transporting device is constructed from a piece of hollow steel tubing which is bent to define a U-shaped base frame having a pair of support legs extending upwardly from the sides of the base frame at substantially right angles thereto. A cross member interconnects the top ends of the support legs and a pair of support brackets are pivotally and slidably mounted on the cross member for engagement with a rearwardly extending horizontal flange on a toilet. A pair of wheels are mounted adjacent the ends of the U-shaped base frame for rotation about a common axis whereby the base frame may be pivoted upwardly about the axis to bring the brackets into engagement with the toilet flange. Upon pressing the U-shaped frame downwardly, the rear portion of the toilet will be elevated. The toilet may then be pivoted about the cross member and supported on a rod extending between the side members of the U-shaped base member.

Abstract: A portable ramp usable to raise the wheels of an automobile, truck, trailer or the like from the floor so as to ease seeing or working on the underside of the vehicle. The ramps are mounted on wheels to make the portability easier. The wheels, in turn are hinged to the ramp so that they can be used to raise the ramp off the floor for portability or to be retracted to allow the ramp to be firmly placed on the floor. The ramp is constructed to be securely held in place as the vehicle enters it.

Abstract: A dolly which can be easily placed under a snowmobile, to lift the front end of the snowmobile for easy movement and storage. The dolly includes a support frame, rollably supported on casters. A lift lever is pivotably attached to the support frame. A contact pad is mounted to a lift end of the lift lever, for contacting the underside of the snowmobile. The lift lever can move the contact pad between two positions, a raised position and a lowered position. The lift lever includes a latch for latching the lever with the contact pad in the raised position. An extension lever is removably attached to a lever end of the lift lever, to give additional leverage for lifting the snowmobile. Various embodiments are disclosed to accommodate structural differences among various makes and models of snowmobiles.

Abstract: A mechanism for lifting and hauling of a container or the like onto or from a ramp, a tipping body of a lorry and to or from a location which is not easily accessible for heavy haulage vehicles and/or heavy lifting gear includes a hauling arm secured intermediate first and second ends of a shaft and levering arms also attached to the shaft. The shaft is pivotably connected to locking elements adapted to be secured to lower corners of the container at one end thereof. With this arrangement, when the locking elements are secured to the container and the hauling arm is manipulated in order to rotate the shaft relative to the locking elements, the levering arms engage a supporting surface for the container and continued rotation of the shaft causes at least a portion of the container to be lifted from the supporting surface for hauling of the container.

Abstract: A compact utility trailer for pick-up and delivery of relatively small sized lots of material is readily towable behind a variety of commonly driven vehicles such as automobiles, pick-up trucks and the like, and contains a hand operated hydraulic jack-operated forklift that allows a pallet of material to be easily seized and lifted into a transport position within the confines of the trailer. The trailer comprises a front end hydraulic jack-mounting portion, and a rear end pallet-housing portion affixed thereto within which a pallet is to be seized and transported. The front end hydraulic jack-mounting portion has a longitudinal member having a trailer hitch fixture. A floor is affixed to the front end portion, and a hydraulic jack is mounted to the floor. A driven piston of the jack is vertically translatable to engage a fork lift-translating lever unit, which is coupled to a fork lift frame supported in the rear end portion of the trailer.

Abstract: A vehicle wheel changing aid for mounting and removing a vehicle wheel to and from a jacked position on the wheel axle of a vehicle. The device includes a rocker base having an operator end, a wheel receiving end, and a bottom facing pivot surface adapted to contact the ground as the rocker base is pivoted. A plurality of spaced apart rollers are mounted on the base near the wheel receiving end and allow rotation of a vehicle wheel in order to accurately align the wheel lug openings with the lugs on the axle hub during the changing procedure. A knee/foot bearing pad is positioned towards the operator end of the base and permits the vehicle wheel to be raised or lowered from the axle hub of the vehicle by applying the operator's knee/foot to rock the base of the device. The knee/foot bearing pad may be extendably mounted to the base to increase the mechanical advantage in raising and lowering the wheel and provide additional operator clearance for safety purposes.

Abstract: A base is wheel supported and carries an upright post member having laterally spaced apart brackets for engagement with two blades of a two or three bladed propeller when lifting a nose wheel. Each bracket is provided with a liner to avoid marring of blade edges. Post members of different lengths are provided for use in lifting a main gear wheel of low wing and high wing aircraft. Both of the last mentioned post members pivotally carries a lift pad for engagement with a wing surface. A method is disclosed for lifting a nose or main gear wheel off the ground to a stable elevated position. Fastener assemblies lock the propeller engaging brackets in the upright or inclined positions to engage a two bladed or a three bladed propeller.

Abstract: A tilting and lifting apparatus for vehicle bodies for the ergonomically favorable preparation of batches of bodies in the series assembly of vehicles comprises a separate tilting device and a lifting device operable independently of the tilting device. The tilting device includes a swivelling frame which on the tilting side is swivellably guided on a pair of horizontally extending guide paths and on the lifting side on two vertically extending lifting pillars. The vehicle body is fastened rigidly on, and at a distance from, this swivelling frame, which is made as flat as possible. For the purpose of lifting this tilting device, two scissors-type lifting apparatus are disposed beneath the tilting device. The entire arrangement for the independent raising and lowering and the tilting of the body is mounted on a flat, rectangular platform on which it is possible to walk and which, in plan view, projects beyond the vehicle body to the extent of a gangway width.

Abstract: A vehicle for conveying aircraft is disclosed which includes a carriage system capable of lifting, supporting and conveying an airplane. The system has alternately deployable primary and auxiliary sets of wheels mounted from the carriage chassis. The wheels of the auxiliary set are vertically displaceable relative to the primary set so that the carriage chassis can be alternatively supported by either. A mechanized steering system is provided for the primary set of wheels. A lifting system is provided to lift an airplane of interest between self-supported and carriage-supported dispositions, as required. An engine-driven hydraulic system is provided to operate the vehicle and power the wheel sets, lift mechanism and steering of the primary wheels.

Abstract: A jack for elevating a sofa or similar article of furniture to facilitate cleaning the area beneath the article has an elongated, horizontal beam rollably supported at the rear end thereof by a pair of wheels, one on each end of a horizontal axle disposed perpendicularly to the longitudinal axis of the horizontal beam. An L-shaped plate attached to the front end of the horizontal beam has a lower horizontal plate extension adapted to be inserted under an article of furniture. The jack includes an upright beam member that is pivotably attached to a wheel axle. A stop member located rearward of the axle limits rearward movement of the upright member, such that under the force of gravity the longitudinal axis of the upright member extends obliquely upward and rearward from the horizontal beam.

Abstract: A specialty wheeled dolly for moving a pool table across a floor surface that includes a rectangular frame supported on four wheels and a set of independently operated mechanical jacks on opposite sides of the frame. The dolly has an elevating platform which has a relatively high nominal height and the jacks have a stroke which is relatively small in comparison to the height. The geometry of the dolly permits it to be conveniently rolled under a pool table and allows the user to lift only a portion of the weight of the table with operation of each jack. A jack is operated by a single stroke step-on actuating lever.

Abstract: A hand operated, vertical lift dolly upon which objects may be placed and vertically lifted or lowered using the mechanical motion of a load handle. A load table is controlled by the load handle, and can be locked in place once it has been raised to a transport configuration. The load table remains in a substantially horizontal orientation throughout the loading and lifting process. The dolly can be moved from one location to another for loading and unloading objects, this motion facilitated by a wheeled carriage. The vertical lift dolly can, by appropriate positioning of the handle and load table, be placed in a space saving storage configuration.

Abstract: Hydraulic apparatus including a hydraulic fluid flow control cartridge for controlling hydraulic fluid flow between a hydraulic fluid reservoir and a hydraulic fluid pump and between the hydraulic fluid pump and the hydraulic cylinder, and for permitting relief of hydraulic fluid from the pump to the reservoir in the event the hydraulic fluid pressure in the pump exceeds a selected pressure.

Abstract: A camera platform is positioned on the upper end of a lifting mechanism formed by a pair of driving cranks where the outer end of the second crank is connected to the camera platform and the inner end thereof is connected to the inner end of the primary crank. The lower end of the primary crank is pivotally mounted on a mobile chassis which includes a hydraulic system for actuating movement of the primary crank. The inner ends of the primary and secondary cranks are connected by a gear train that provides a two-to-one ratio to multiply the angular movement of the first driving crank to generate movement of the second driving crank in an opposite direction but at twice the angular magnitude of movement. The transmission of angular movement upon actuation of the hydraulic system is accomplished by a double jointed parallelogram system forming the driving cranks and connected to the drive gearing.

Abstract: A lifting and transporting device for heavy loads having a lower indented toe region therein, easily adjustable along both its length and its width dimensions so as to conform to the load it is to carry. Individual wheel assemblies are used for such transportation with each such wheel assembly having an abutment plate that pivots about a support plate. Since each end of an adjustable tube (that fits within the indented toe region of the load) is secured to the abutment plate, this end of the tube, and its respective corner of the load, is raised whenever the abutment plate is raised and subsequently locked in place.

Abstract: A dolly including a frame together with an a plurality of casters mounted on the frame for low friction movement of the frame along a supporting surface together with elevating mechanism mounted on the frame and spaced below a part of the load when the dolly is inserted underneath the load, the elevating mechanism being operable to engage and to impart upward movement to the load and out of engagement with the supporting surface so that easy transport of the load is accommodated.

Abstract: A mobile truck for moving containers and other articles comprising a base, supporting standards at opposite sides of the base, a handle pivotally attached at the upper ends of the standards, a lift supporting member pivotally attached to the handle and to a suitable lifter arm, the lifter arm having attached at one end a lifting device and the other end of the lifter arm being pivotally attached to a connecting bar, with the other end of the connecting bar being pivotally attached to the truck base.

Abstract: A dolly for lifting one end of a vehicle and for towing the vehicle includes a pair of identical tandem wheel assemblies interconnected by a pair of spaced parallel steel tubes. At least one of the wheel assemblies includes a hydraulic piston which, in spreading one pair of arms on crank members coupled to the wheel assemblies, forces together the second pair of arms. The ends of the spaced parallel steel tubes are coupled into sockets on the ends of the second pair of arms so that their forcing together operates to lift a vehicle whose tires are resting across the steel tubes. The invention includes means for locking the tubes in their raised position and further includes vehicle wheel locking plates that are actuated by the lifting process.

Abstract: A hydraulically elevatable ramp apparatus is set forth wherein a ramp formed of an upper and lower portion with a pivotal hinge joining the two portions secured to a hydraulic jack at a forwardmost position. The ramp at a first lowered position accepts vehicles of diminished ground clearance wherein the vehicle is thereafter elevated to a second position whereupon the lower hinged portion is automatically repositioned upon elevation of the upper portion. The jack is formed with a resilient pad to insure a non-slip arrangement upon elevating a vehicle to a second elevated position.

Abstract: This invention relates to a stand for a motorcycle. The stand comprises an elongate transverse frame member, which has a non-circular cross-section, a first pair of similar elongate leg members, and a second pair of similar elongate leg members. Each leg member of both pairs has a non-circular transverse socket at one end. The shape of the socket corresponds to the cross-sectional shape of the transverse frame member. The leg members are slid on the frame member and secured with the members of the first pair in a first plane at an acute or right angle to the members of the second pair in a second plane. A transverse member is mounted on each leg of the first pair for engagement with the undercarriage of the motorcycle. Alternatively, a channel member, which has a hole cut through each of its sides, the holes in register with one another, is slipped about each front fork of the motorcycle between the bottom crown and fork slider.

Abstract: A demountable roll lifting and transport system has laterally spaced apart dollies, each comprising a set of front and rear ground-supported wheels with a wheel fork for each wheel. One of the forks of each set is formed with a journal and the other is formed with a shaft received coaxially in the journal to mount the wheel forks for movement between spread, rool-loading position and convergent, raised, roll-transport position. A lever swingably mounts to one fork of each set for fulcrumming engagement with the periphery of one of the wheels to raise the wheel forks to transport position when the lever is pushed downwardly against the wheel. A demountable roll support extends between the dollies, and a releasable latch disengageably secures the wheel forks in roll-transport position.

Abstract: An apparatus for jacking and dollying a vehicle wheel assembly, while the assembly remains affixed to the vehicle, the wheel assembly including a pneumatic tire, a wheel and an axle. The apparatus features wheel engaging elements and an actuator mounted on an apparatus framework, the framework itself being supported on casters. The wheel engaging elements and actuator cooperate to provide an adjustable mechanical advantage for the apparatus that facilitate the lifting of the wheel assembly, whether the pneumatic tire is inflated of deflated. The wheel engaging elements includes roller assemblies having adjustable effective radii which are mounted on framework arm members, the arm members being movable relative to one another. The actuator includes an adjustabe lever mechanism which is connected to the framework, and is capable of driving the roller assemblies against the tire of a wheel assembly located therebetween.

Abstract: A motorcycle jack includes a frame having front and rear cross shafts rotatably supported thereon. Pairs of front and rear legs are secured to opposite ends of the respective front and rear cross shafts for rotation in unison with the shafts. A linkage mechanism interconnects the front and rear shafts for rotation in unison, but in opposite directions so that the frame is raised in response to pivotal movement of the front and rear legs toward one another and is lowered in response to pivotal movement of the front and rear legs away from one another. A power unit is provided for rotating their legs relative to the frame. The cross shafts are preferably formed of a resilient material so that the free left legs tend to spread slightly further apart than the interconnected right legs, thereby tilting the motorcycle slightly to the left for placement onto its kickstand when the jack is lowered.

Abstract: A safety device is provided for use with a lifting apparatus having a main lifting mechanism for lifting, lowering and supporting a load. The safety device includes a cylinder operatively connected to the lifting apparatus and capable of lifting, lowering and supporting the load supported by the lifting mechanism. The safety device further includes a counterbalance holding valve operatively connected to the cylinder for preventing the lowering of the load supported by the lifting apparatus except in response to the application of hydraulic pressure thereto.

Abstract: A wheeled skid jack is pivotally and releasably connected to a wheeled electric power pack in which the skid jack is provided with a lever handle to manipulate the skid jack into engagement with the skid or pallet using the skid jack wheels as a fulcrum. The wheeled electric power pack supplies current to a gear motor mounted on the skid jack. Electrical controls are provided for controlling the direction of displacement of the skid jack and power pack by driving the gear motor in the desired direction.

Abstract: Apparatus for moving a load, particularly a stack of panels, along a roof structure, including a plurality of spaced-apart roof rafters and transverse purlins comprising: a roof-mounted rail for mounting on said roof in vertical alignment with a purlin, a load-carrying cart comprising a carriage having rollers movable along the rail, and a load-carrying platform mounted on the carriage for longitudinal and vertical movement relative thereto including an inverted U-shaped elongate channel member. Mechanism is provided for relatively longitudinally moving the load-carrying platform and the carriage between rest positions and longitudinally displaced positions. The carriage and load-carrying platform include cooperating camming rollers and cam receiving slots which upwardly guide the platform relative to the carriage as the carriage and platform are relatively longitudinally moved, to lift the load relative to the roof structure for subsequent rolling movement via the carriage on the track.

Abstract: A caddy for pulling a trailer. A wheel is rotatably mounted to an axle which in turn is fixedly secured to an upright post into which a downwardly extending member on the trailer hitch is positionable. A handle is pivotally mounted to the axle and may be pulled to pull the trailer forwardly.

Abstract: The present invention relates to a hand truck apparatus which is designed for transporting large cylindrical objects such as compressed gas storage tanks, for example. The hand truck apparatus includes a main frame assembly supported by a pair of spaced apart ground engaging wheels. A load supporting mechanism is movably mounted on the main frame assembly and includes a securing strap adapted to surround the object and urge the object into secure engagement with the load supporting mechanism. A hydraulic jack unit is provided for moving the load supporting mechanism and the object between a lower position and a selected upper position.

Abstract: A vertical lifting device is provided to enable a single operator to lift and place materials, particularly where materials such as kitchen cabinets are to be installed along vertical walls or in vertical corners. Telescoping vertical columns enable a gross height to be pre-set and a pivoting mechanism produces both vertical and lateral positioning for final placement by one person. The pivoting mechanism may be frictionally locked at the desired placement position to free the single operator to thereafter secure the material being installed. A variety of support platform designs may be provided compatible with the installation surfaces. Pivoting supports are provided to enable folding of the device for compact transportation and storage.

Abstract: A compact hoisting device is constructed with a primary hoist link pivoted at one end on a shaft secured to a base and pivotally connected to a final hoist link by means of a journal in the other end. A load support is pivotably mounted at the free end of the final hoist link on a shaft driven by attitude control transmission means into a constant spatial attitude regardless of the angular movement of the primary and final hoist links. Motion transmission means engage said journal to ensure that the angular rotation of the final hoist link mirrors the rotational motion of the primary hoist link, itself governed by a hydraulic jack or other drive means. The motion transmission means and the attitude control means may employ planetary gear trains, sprocket-and-chain drives, or parallel-rod drives, as suited to a particular application. One or more intermediate links may be interposed between the primary and final hoist links, with the several links in the hoist train sequentially pivoted to one another.

Abstract: This hitch and snatch boom assembly includes a ram assembly attached to a transporter vehicle frame at a fixed angle of inclination; an upwardly inclined link member pivotally attached to the transporter vehicle frame and a boom assembly pivotally attached at its inner end to the link, and pivotally attached between its ends to the ram assembly. A cable is attached to the boom assembly at its outer end, and a guide roller assembly, receiving the cable, is mounted to the ram assembly at a relatively low elevation to provide the cable with selected lifting and pulling angles.

Abstract: A load is lifted and moved by a pin-turning transporter-and-lift-member combination. The transporter has a body, and wheels for permitting the body to move along a surface. The transporter body includes a lifting pin and a weight supporting plate fixed relative to the lifting pin, together with an assembly for turning the lifting pin around an axis parallel to the surface and perpendicular to the pin so that the pin and the pin-turning axis lie in a common geometric plane for substantial mechanical advantage. The lift member has an elongated section for slidable attachment to the load and further has a receptacle portion for pivotably and slidably receiving the lifting pin perpendicular to the elongated section. The receptacle also includes a second weight supporting plate to carry the load pivotably on the weight supporting plate of the transporter body.

Abstract: A battery-powered electric motor driven cart for pushing disabled vehicles and having a frame designed to support a portion of the vehicle's weight for enhancing the traction of the cart's drive wheels with the ground. The cart can be operated remotely to permit steered movement of the vehicle by a single person.

Abstract: A moveable cart for transporting structures which are adapted for mounting upon a wall rail. The cart is constructed with a roller linkage assembly pivotally mounted to a wheeled frame and a deck mounted on the linkage assembly. The deck is engaged by the rollers of the linkage assembly so that the vertical position of the deck can be moved with regard to the wall rail, allowing a modular cell structure placed on the deck to be carried upward or downward. A rack driven gear locking assembly is rotatably mounted to the deck. The gear locking assembly is engaged by a rack assembly which is driven by the roller linkage assembly so that it rotates against the sides of the structure to hold the structure in a fixed position during the transportation and vertical positioning of the deck.

Abstract: A collapsible wheelchair undercarriage usable as a vehicle seat includes a wheeled chassis, a seat attachment, a hauling strap for suspending the undercarriage, apparatus for movably supporting the seat attachment on the chassis, and apparatus for lifting and lowering the chassis relative to the seat attachment.