Abstract: For temporarily supporting an end of one sheet and/or of adjacent ends of two separate sheets of plasterboard (drywall), plywood or the like, in a raised overhead state and position while raising and securing opposite end(s) thereof to overhead rafters, beams or the like, there is provided an overhead sheet-installation support tool inclusive of a forwardly-directed tapered threaded screw having a longitudinal axis along its length-dimension with a tapered forward distal end, having at its forward distal end screw threads; there is a handle structure extending rearwardly a suitable height-distance for grasping and handling, the handle having opposite flattened sides spaced-apart by a minor handle-thickness, and with forward shoulders of handle structure having laterally-extending shoulders angled rearwardly at laterally outwardly distal ends thereof and the shoulders having a flange along at-least a forward edge of the shoulders with the flange extending at an angle of about 90 degrees relative to the flatten

Abstract: Apparatus for lifting and supporting wallboard or other sheet material for horizontal or vertical installation on a ceiling or side wall of a structure. A pair of spaced apart identical pivot arms attach at one end to studs, joists or the like available in a building under construction and the other ends are connected together by an elongated bar or rod member. A clip or hanger supports the sheet material when the apparatus is in a vertical position and when translated toward the attachment to vertical studs the arms lock in this horizontal position. The apparatus can be operated in right or left direction of pivot. The apparatus can be easily stored in a small space by removal of the interconnecting rod.

Abstract: A door transporting and mounting machine is disclosed for transporting an mounting a door relative to a complementary door frame. The machine includes a wheeled supporting frame for portably transporting a door to a selected door frame site. A generally vertically extending column extends upwardly from the supporting frame and includes a carriage mounted on the column for movement between lower and upper positions. Door gripping arms are pivotally mounted on the movable carriage for re-positioning the door between a horizontal transporting position and a vertical mounting position. When the machine is located at a complementary door frame, the movable carriage, with associated door gripping arms, moves the door to properly aligned position for mounting the door relative to its complementary door frame.

Abstract: A sheetrock support device is disclosed that is conveniently adjusted to heights and loads and can be operated from floor or ceiling area by a single operator. Efficiency of prior art have been greatly diminished when operating in various work areas, heights and loads. This present invention provides exact tension to supported materials eliminating damage to them by possessing easy fine adjustment capabilities.

Abstract: A portable construction hoist adapted to mount flush against the inside surface of a wall. A telescoping mast carries a removeably mounted winch with a remote control pendant. A freely rotatable boom is removeably mounted to the top of the mast. As the boom is rotated, an object which has been raised along the outside of the wall to which the hoist is secured can be brought around and lowered inside the perimeter of the building. The telescoping mast and removable boom and winch facilitate transportation and storage.

Abstract: A positioning arrangement for use with a device having a fixed or movable crane arm includes a suction device for plate-shaped bodies which hangs from the free end of the crane arm, the suction device being provided with a tilting device. The tilting device is infinitely variable by a setting mechanism. In this way, the center of gravity of the suction device with the plate-shaped body attached by suction may be adjusted such that the plate-shaped body is kept vertically.

Abstract: A device for holding an object in an elevated position comprising an outer tube and shaft member slidably disposed within the outer tube. A support member is mounted at one end of the shaft. The shaft slides within the outer tube between lower and upper positions. A spring is disposed within the outer tube and is connected between the outer tube and shaft member which upwardly urges the shaft to the upper position for holding an object. A trigger is provided for releasably retaining the shaft while in its lowered position.

Abstract: A machine is described for accurately elevating and aligning large ceiling panels for placement in an overhead ceiling. The machine includes a frame supported by wheels which permit horizontal transport of the machine between panel receiving and panel placing positions. Elevating outriggers are provided to elevate the frame and wheels at the panel placing location and to partially advance the panel vertically toward placement. A series of elevating stages which are slidably mounted upon guides fixed to the frame elevate the panel to its final elevation for placement. Hydraulic cylinders are provided to elevate the stages. A pair of carriages are provided, mounted on the elevating stages, slidably adjustable along stage frame members, for shifting the panel into transverse and longitudinal alignment for placement. An upper carriage includes a turntable bearing upon which is mounted a base for supporting the panel.

Abstract: This invention is directed to an apparatus for lifting objects. The apparatus is suspended from a cable which is attached to a crane. The apparatus is used in construction such as in the construction of buildings. The apparatus can connect with a precast concrete panel and lift the precast concrete panel to a desired opening in a building under construction. Also, the apparatus can lift building material to a desired opening in a building, to a proper location in a dam under construction, and to a tower under construction such as a high voltage electric line tower, a radio and television tower and the like. The crane can be on top of the article being constructed such as a building or a dam or the crane can be on the ground. The cable is suspended from the crane and attaches to the apparatus so that the position of the apparatus can be varied both horizontally and vertically and also away from the article under construction and toward the article under construction.

Abstract: In order to prevent belt slippage induced by overly rapid depressurization of a chamber forming part of a continuously variable transmission V-belt pulley control arrangement, and simultaneously endow the transmission with good response characteristics, the difference between a value indicative of the desired gear radio (e.g., the desired gear ratio per se or the desired engine speed) and one indicative of the actual gear ratio, is produced, differentiated and added to itself. The maximum value of the addition is limited (by slicing or the like) and the result used to control the hydraulic pressure prevailing in the aforementioned chamber.

Abstract: An adjustable jig for elevating plasterboard. The jig comprises a frame for supporting a rack which holds the plasterboard. Three telescopic members are supported by the frame and are individually adjustable to elevate the rack at a desired angular relation to fit uneven or angled ceilings. One of the telescopic members is provided with a hinged toggle operator whereby one side of the rack may be substantially lowered from the other side of the rack for easy loading of the plasterboard or for performing work upon the plasterboard before it is elevated. The toggle operator is easily moveable from a collapsed to an erect position to move the rack toward a lift position where the telescopic members may be adjusted by a workman as desired. The support frame has a base supporting the telescopic members and may be easily moved along a floor to any desired work position.

Abstract: A panel hoist for raising sheet or panel materials such as sheet rock, plywood, rock lath and similar materials. The panel hoist is used to aid in installation of these panels, particularly when the installer is working singlehandedly. The panel hoist includes a telescoping mast assembly, preferably having three stage operation. A collapsible base framework is provided with casters so that the panel hoist can be rolled into position. The collapsible base framework is specially constructed so as to minimize the size of the unit in the collapsed. Two different head assemblies are provided, depending upon whether panels are being installed horizontally or upright. The head assemblies are also collapsible to provide compactness and easy portability.

Abstract: A guide jig for lifting an outer wall member of a curtain wall is constructed principally of a nearly L-shaped arm having two legs extending in two directions making a predetermined angle therebetween. First and second brackets are connected to tip end portions of the respective legs of the arm so as to be rotatable about respective axes substantially perpendicular to a plane containing the arm, first and second sliders are fixedly secured to the first and second brackets, respectively, and a rope engaging member is provided at a tip end portion of one leg of the arm.

Abstract: Height adjustable apparatus (2) for supporting goods for a person at a desired height, which apparatus (2) comprises a base (4), a single elongate support member (6) which upstands from the base, a platform member (8) which is provided on the support member at the end of the support member remote from the base, and a ladder (10) which is secured to the support member and which affords access to the platform member, the support member being adjustable in length so that the height of the platform member above the base can be varied to that required by a person for a particular task being undertaken, the ladder being so secured to the support member that the support member is adjustable in length while the ladder is secured to the support member, the ladder being so secured to the support member that the ladder is rotatable through 360.degree.

Abstract: A support member (2), on which the object is intended to rest, and a base member (1) which carries the support member. The base member (1) consists mainly of a fixed frame (6) and an expanding column (9) hinged to the frame which carries the support member (2). The column by expansion or contraction can raise or lower the support member. Between the frame and the column is attached a control contrivance (13) for positioning the column between different swing positions. At a lower end position, in which the support-member is to a high degree obliquely positioned, the member can connect with a unit at a lower level, from which the workpiece can be lifted to a desired higher level. The support member also has elements (28) to ensure that the workpiece is held securely in position in all support-member attitudes.

Abstract: A lifting device and method of using the device is disclosed. The device and method may be used to stock a structure such as a high-rise building under construction or an off-shore gas or oil drilling rig. The device in the preferred embodiment contains a pair of booms carried by a pair of boom carriages which are pivoted on a frame attached to the outside of the structure. The booms are capable of moving transversely on the frame and longitudinally within the boom carriages. A trolley and disappearing cargo block are positioned in the booms. Self-climbing features may also be incorporated in the device for stocking several elevations of the structure. The novel device also allows longer cargo to be lifted and turned approximately 90.degree. and moved into the structure. The device may also be installed permanently on the structure and positioned in a non-operative vertical position and pivoted to an operative horizontal 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 system and method for erecting walls and foundations upon a base support from structural components, including a track assembly secured to a base support, a plurality of carrier assemblies each engagable with the track assembly to permit movement of the carrier assembly along the track assembly, each carrier assembly including a component engaging assembly for engaging a component, the carrier assembly adapted to be movable when a structural component is engaged therewith to a desired location along the track assembly, and adjusting means operable when the carrier assembly and the structural component engaged therewith have been moved to the desired location to prevent further movement of the carrier assembly along the track assembly and to secure the carrier assembly and the structural component engaged therewith in place at the desired location along the track assembly.

Abstract: A dry wall panel lift is provided in which a vertical support has spaced apart legs of about ceiling height and at least two crossbars, one at full height and one at worktable height.A work frame has a pivotal detachable connection at one end to one of the crossbars and legs of worktable height at the other end extending away from the work surface of the frame.A stiff leg is pivotally connected to the end of the work frame opposite the connection and is of length about equal ceiling height.A work stop extends across the work frame in the region remote from the connection. When one end of the work frame is lowered to slope downwardly from the connection, the stop will restrain a ceiling panel on the work frame preparatory to elevating the panel to ceiling height. The work frame can be connected to either of the bars for selectively functioning as a ceiling panel lift or for a worktable support.

Abstract: A lift truck mechanism for handling glass sheets having a glass pack lifting frame. Gripping devices at the sides of the lifting frame engage sides of a glass pack. Feet at the bottom of the lifting frame support the glass pack on the frame. A framework of the mechanism attaches it to the lift mast of the lift truck, there being an operator control station platform extending rearwardly from the lifting frame above the lift mast. An intermediate frame is carried by the framework in selectively extendable relationship in front of the mast and there is a first pair of swinging frames swingably affixed to the intermediate frame for swinging movement on upright axes at the opposite sides of the intermediate frame. A second pair of swinging frames is provided, swingably affixed at proximal ends to the distal ends of the first pair of frames. Distal ends of the second pair of frames are pivoted to the lifting frame. A drag link interconnects the distal ends of the first pair of frames.

Abstract: A lifting and positioning apparatus for construction panels such as sheet rock, the apparatus including at least one lifting standard having a base, a fixed strut supported vertically from the base, a movable strut supported from the fixed strut, a guide and latch arrangement for retaining the struts in generally parallel relationship, a handle on the movable strut for elevating same in relation to the fixed strut and the base, and a panel engaging rail supported on the movable strut. The panel engaging rail may be supported at the top of the movable strut, in which case, two of the standards are used to elevate and position a panel against the underside of a ceiling framework. In an alternative embodiment, only one standard is used and includes a cleat-like rail at the bottom of the movable strut to engage the lower edge of a panel to be elevated along a vertical wall framework.

Abstract: The invention has hoist means to elevate or lower Panels, such as sheetrock, wall board and plywood and the like, and, exactly place and fit panels of same on the ceilings of rooms in a building. The hoist means is supported on a platform having rollers thereunder to facilitate moving the same about on the floor opposite the ceiling in a room. On top of activated hoist post is an I-frame on top of which is a slidable sliding frame both lengthwise and sidewise activated by rope means wound around a drum whereby said sliding frame may be shifted lengthwise on said I-frame, and, other rope means wound around said drum after freeing the first named rope means from said drum whereby said H-frame is slidable sidewise over said I-frame.

Abstract: A lifting jack, particularly useful in supporting wall cabinets and the like during installation and attachment to a wall surface, includes an elongated standard, adjustable for major height adjustments, mounted on an adjustable base, and a platform secured to a fine-adjustment mechanism mounted on the upper end of the elongated standard for engaging and supporting the cabinet during installation.

Abstract: An apparatus for raising and positioning panels to be attached to the interior surface of a building. It includes a movable frame having a pair of telescoping stanchions, whereby its height can be varied, and a panel holder pivotably mounted atop the frame. The ceiling panel is loaded with the holder in a generally vertical position alongside the frame and then swung into a horizontal working position. A hanger can be mounted on one end of the frame to support a wall panel in a generally vertical working position.

Abstract: A lower horizontally elongated base frame is provided and includes depending support wheels. An upright longitudinally extendable boom has its lower end pivotally supported from one end of the base frame centrally intermediate the opposite sides thereof for adjusted angular displacement of the boom relative to the frame about a first horizontal transverse axis extending transversely of the frame and the boom between an upright position and a lower horizontal position closely overlying the frame and with the free end of the boom projecting toward the second end of the frame. A second upper horizontal frame is provided and is pivotally supported from the upper end of the boom for adjusted angular displacement of the second frame relative to the boom about a second horizontal axis generally paralleling the first axis between a first position with the second frame disposed at generally right angles relative to the boom and a second position with the second frame generally paralleling the boom.

Abstract: A method of stocking a building under construction with wallboard panels, and apparatus. A stack of horizontal panels is delivered to the building site by truck, and removed by a fork lift truck, and then placed on a pallet provided with transverse rollers. The pallet, loaded with the stack of horizontal panels, is lifted to an upper floor, and a self-propelled transporter vehicle on that floor is placed adjacent the pallet. The stack is transferred as a unit to the transporter, which then delivers the stack to a desired location on the floor of the building, the stack of horizontal panels being discharged as a unit from the transporter.The pallet has three sets of rollers, longitudinally spaced, so as to provide between each two sets a passage which is upwardly facing, unobstructed, and which will receive one of the tines of a fork lift truck. One of the rollers is powered from a source of energy carried on the pallet.

Abstract: A device for raising and lowering sheets of building material utilizes a base support platform on which is attached a support bracket member and a pair of serially connected first and second parallelogram members pivotally joined by a right angle member with the other end of first parallelogram member pivotally connected to the base support platform and the other end of second parallelogram member pivotally connected to an object supporting platform. A spacer arm is pivotally connected to the support bracket and to one leg of the second parallelogram member proximately midway between pivotally connected ends to keep the object supporting platform on a long radius curve or generally straight vertical direction of movement. Hydraulic means are provided for actuating the spacer arm to raise and lower the object supporting platform.

Abstract: A panel placing device has a carriage frame on which are pivoted links connected pivotally to a panel frame adapted to support a panel. There are springs connected to the links and to the panel frame for urging the panel frame in one rotational direction. A lever pivoted on the carriage frame has a one way abutment with the panel frame and is moved by a tackle connected to the lever and to a rotary drum on the carriage frame. The lever is also pivoted on the carriage frame to swing aside. The drum is rotatable by a crank and is under control of a one way brake and a one way clutch.