Abstract: An adjustable support for a microphone, lights, etc. includes a pair of elongated tubes in telescopic relationship and an engager carried by the inner tube for releasably engaging the interior surface of the outer tube. The engager includes an elongated wedge member vertically movable between locking and unlocking positions and a plurality of substantially rigid ball bearings dimensioned to releasably engage the interior surface of the outer tube against relative longitudinal movement of the tubes in a given direction when the wedge member is in the locking position and to enable such relative longitudinal movement of the tubes in the given direction when the wedge member is in the unlocking position.

Abstract: A table includes a telescopic leg unit and a positioning mechanism. The telescopic leg unit includes an inner leg post, a tubular outer leg post and a resilient tubular bushing. The positioning mechanism includes a press member, a support member, and an operating lever. The press member is movable in radial inward and radial outward directions relative to the leg unit. The support member is mounted securely on the outer leg post and is formed with a lever coupling hole that is aligned with the press member in a radial direction relative to the leg unit. The operating lever is operable so as to force the press member to move in the radial inward direction and abut against the tubular bushing, thereby enabling the tubular bushing to frictionally engage the inner leg post so as to resist movement of the inner leg post relative to the outer leg post.

Abstract: An automatically collapsible prop for propping all kinds of loads such as golf bag, knapsack, coolie rack, etc., comprises a first tubular member having an upper end and an open lower end, a second tubular member relatively moveably inserted in the first tubular member so as to slide down by gravity relative to it to protrude from the open lower end of the first tubular member by a predetermined length when lifting the first member in a sloping or vertical position, and a third member rotationally mounted on a fixed shaft attached to the second tubular member so as to pivot relative to the first and second members about the fixed shaft. A first engaging groove is formed in the surface of the first member in the longitudinal direction to allow the second member with the third member to slide relative to the first member.

Abstract: A telescopic shaft for rapid length adjustment consists of a tube having a plurality of alternating circumferential ridges and grooves on at least a portion of an inner surface and having an oval cross-section with a major diameter DA and a minor diameter DB; a shaft disposed within the tube and having matching circumferential ridges and grooves, the shaft also having an oval cross-section with a major diameter DC and a minor diameter DD; and the ridges and grooves of the tube interengaging with the grooves and ridges of the shaft when the shaft major diameter DC is substantially parallel with the tube minor diameter DB.

Abstract: A height adjustable table, preferably with a circular tabletop which includes a vertically telescoping column to support the tabletop and with the column telescoping between extended and retracted positions. A base supports lower end of the column vertically upright. A locking mechanism is provided within the telescoping column adapted to lock the column against telescoping when the tabletop is rotated in one direction relative the base and to unlock the column when rotated in the other direction. When the table is unlocked, a user may adjust the height of the table either by manually lifting alone or assisted by a lifting mechanism to bias the tabletop upwardly and at least partially bear the weight of the tabletop. A stop mechanism is preferably provided to ensure the table is not extended so far as to disengage the tabletop structure. The base of the table is adapted to be engaged by a user's feet to prevent rotation relative to the tabletop when locking or unlocking.

Abstract: The invention includes a base (21) provided with pairs of fitting hole (25), two each of which are spaced apart and situated facing each other so as to constitute a pair. A pair of rotary shaft portions (28) of each first leg member (27) are rotatably fitted in each pair of fitting holes (25). The two rotary shaft portions (28) are formed on the outer surface of the upper end portion of each first leg member (27) as an integral body therewith so as to extend coaxially. A second leg member (29) is inserted in each first leg member (27) in such a way that the distance by which the second leg member (29) projects from the first leg member (27) can be adjusted. As the top end face of each second leg member (29) can be positioned flush with the top end face of the associated first leg member (27), the invention is capable of improving the telescopic extension ratio of the legs.

Abstract: An extensible positioning device of the shank of an umbrella includes an outer tube, an inner tube, an adjusting cylinder and a fixing cylinder. The inner tube may telescope in the outer tube. The outer tube has holes spaced apart horizontally in a lower portion for compressing members of positioning arms of the fixing cylinder to move in and out. The adjusting cylinder has female threads formed in a lower end, and the fixing cylinder has male threads engaging the female threads after the adjusting cylinder and the fixing cylinder fit around the outer tube. When the adjusting cylinder is screwed tightly around the fixing cylinder, the compressing members of the fixing cylinder moves gradually in the holes of the outer tube and further compress the inner tube tightly to keep the inner tube at an adjusted position relative to the outer tube.

Abstract: An extendible leg device for use in supporting a portion of a platform assembly above a floor surface. The extendible leg device has a leg tube that slidably receives a foot tube which is moved relative to the leg tube via selective rotation of an axle. The axle has a first link pivotally connected to a first end of a second link which second link is further pivotally connected at its second end to the foot tube.

Abstract: A model of a telescopic boom including at least three tubular sections arranged in a row one after another and an outer cross-section of which becomes smaller from a tubular section to a tubular section in a direction toward a free end of the telescopic boom, with each of the tubular sections forming, at its front end, a cut-out into which a bar provided at a rear end of a preceding, in the direction toward the free end of the telescopic boom, tubular section, projects in a pull-out condition of the telescopic boom, with the front bar surface of a bar projecting, in the pull-out condition of the boom, beyond the cut-out, and with the rear abutment edge of the cut-out facing the rear surface of the bar.

Abstract: An extendible leg device for use in supporting a portion of a platform assembly above a floor surface. The extendible leg device has a leg tube that slidably receives a foot tube which is moved relative to the leg tube via selective rotation of an axle. The axle has a first link pivotally connected to a first end of a second link which second link is further pivotally connected at its second end to the foot tube.

Abstract: The present invention is a height adjustable pedestal having a gas spring which is easily separated from a furniture component support. The height adjustable pedestal of the present invention can be used in chairs and table. The present invention also provides a method of releasing the tapered upper section of the gas spring from the socket in which it is retained. The method involves no impact forces. The pry lever can be used to apply a force directly on the top of the gas spring cylinder. The invention allows the gas spring to be released simply without the possibility of damage to the gas spring, or other chair component.

Abstract: A longitudinally adjustable leg assembly, comprising a holder (9, 12) which is adapted to be fixed to the underside of a table top (1); first and second elongate carrier elements (2, 3) which are directed away from the holder (9, 12) and cooperate by threaded engagement. The first carrier element (2) is mounted rotatably but axially immovably in the holder (9, 12) and one (2; 3) of the first and second carrier elements (2, 3) having an external thread and the other (3; 2) of the first and second carrier elements (2, 3) being a tube having an internal thread portion at one end in threaded engagement with the external thread. An electric motor is arranged for rotating the first carrier element (2). A device is arranged for interrupting the current to the motor when the leg assembly is in a limit position of maximum or minimum length.

Abstract: A seat support for supporting a vehicle seat outside the vehicle has a base frame adapted for engagement with a support surface outside the vehicle, a support frame configured to engage with and support the vehicle seat, and a plurality of legs connecting the base frame to the support frame. The legs are vertically adjustable in order to vertically adjust the support frame relative to the base frame.

Abstract: A folding chair having adjustable rear legs for use on flat, even ground and in addition, on sloping terrain from about zero degrees to twenty degrees and being continuously adjustable over this range by a user in a seated position.

Abstract: An adjustable device for adjusting a length of a foldable table leg. The adjustable device covers the upper side of a support frame and comprises a mounting plate, a control rod and an auxiliary spring. The center of the spring resists against the control rod. An adjusting rod is located on the bottom of the support frame. Adjusting holes are formed along the inner bottom of the adjusting rod. Therefore, when one end of the control rod is pressed down and after a hook end of the control rod lifts upwards, the hook of the control rod is disengaged from the adjusting hole of the adjusting rod, enabling the adjusting rod to be adjusted to have an appropriate length. After the control rod is released, the restoring force of the spring causes the control rod to fit into another adjusting hole to accommodate uneven floor surface.

Abstract: A height-adjustable workstation main frame includes a pair of telescoping, adjustable legs and a rigid yet efficient fixing frame carried by the upper portions of the legs to provide lateral stability, increased weight bearing capacity and functional flexibility. The same telescoping leg structure is adaptable to receive a motor drive, a manual crank lift or a manually adjusted mechanism for establishing the desired height of the table top. Fore and aft stability is increased by the shape and interengagement of the telescoping inner and outer leg weldments and the use of duplicate, laterally aligned bearing slide assemblies interconnecting the inner and outer leg weldments of each telescoping leg.

Abstract: A pipe linkage between a larger diameter pipe and a smaller diameter pipe installed in the larger pipe. A compressible bush at the inserted end of the smaller pipe is compressed by a bolt and swollen to adhere in the smaller pipe and a larger diameter exposed collar on the bush will contact the interior of the larger pipe, precluding metal noise generation upon relative tilting of the pipes.

Abstract: A camera support for allowing stationary and stabilized mobile use of a video camera, comprising a base which is capable of free-standing upon a horizontal surface, a camera mount, and a vertical support extending between the base and camera mount. A gimbal bearing assembly is located on the vertical support, having an outer sleeve which is biaxially movable with respect to the vertical support, so that the entire camera support can be supported by the user holding the outer sleeve, allowing the user to move while the vertical support remains stabilized in an upright position. The base has a tripartite construction which is adjustable to balance the camera weight and has retractable legs to which dolly wheels may be removably mounted for an additional mode of mobile operation.

Abstract: A pair of ladder leveler members attach to the base portion of the side rails of an extension ladder. Each leveler member has a sleeve that is mounted to the respective rail parallel to the rail, and a slide leg that is movable in the sleeve. The ladder swing feet may be mounted to the base of the legs. There are pin holes in the sleeves and in the slide legs that align with one another, and a retaining pin locks the slide leg into position. The ladder leveler allows the ladder to be set plumb, even when the ground is uneven. The sleeves and legs may be C-channel members of rectangular section.

Abstract: Support apparatus including a base, a receptacle for receiving an object, and a plurality of spaced apart buttresses connected to the base and to the receptacle, the buttresses mounting the receptacle perpendicularly with respect to the base and spaced outwardly therefrom to cause force received by the receptacle from supporting the object to be transferred and distributed to different portions of the base by the buttresses. The support may be grounded to ground supported objects.

Abstract: A height adjustable pedestal having two or more height adjustable telescoping columns can be raised or lowered freely without binding. The telescoping columns engage a furniture component through at least two pivots and at least one slider. Pivotal and sliding engagement of the furniture component with the telescoping columns allows the furniture component to slide and pivot freely over the column precluding axial misalignment of the telescoping members of the columns due to non-parallelity between columns, or misalignment caused by columns moving at disparate speeds. Engagement of the furniture component in this manner also allows the telescoping columns to be adjusted independently of one another providing, for example, a tiltable table top or chair seat. Further, the table to or chair seat can slide in relationship to the height adjustable telescoping columns.

Abstract: Adjustable locking and unlocking structure for a telescopic tube, including two locating members mated with each other, an actuating push plate, a restoring spring, a main restricting plate, a subsidiary restricting plate, several restricting rings, a compression spring and an adjustment rod. The inner face of each of the locating members is formed with a central arch channel for the adjustment rod to pass therethrough. A middle rear section of the arch channel is cut with a trapezoid restricting cavity. A front and a rear walls of the tapered restricting cavity are formed with slope sides. Each of the main and subsidiary restricting plates includes a circular restricting ring section and a bent press section integrally connected with upper side of the restricting ring section. The restricting ring section is formed with a central restricting hole.

Abstract: A telescopic shaft for rapid length adjustment consists of a tube having a plurality of alternating circumferential ridges and grooves on at least a portion of an inner surface and having an oval cross-section with a major diameter DA and a minor diameter DB; a shaft disposed within the tube and having matching circumferential ridges and grooves, the shaft also having an oval cross-section with a major diameter DC and a minor diameter DD; and the ridges and grooves of the tube interengaging with the grooves and ridges of the shaft when the shaft major diameter DC is substantially parallel with the tube minor diameter DB.

Abstract: A telescopic system for a robot includes a frame for mounting a motor, a stationary module mounted on the frame and a rotational shaft rotating by the motor. The rotational shaft is mounted in the stationary module, and a movable plate is associated with the rotational shaft to ascend and descend according to a rotational motion of the rotational shaft. A movable module is mounted on the movable plate to expand away from and retract into the stationary module as the movable plate ascends and descends.

Abstract: Linear motion table leg whereby a linear motion assembly is located between a base and a table top mounting plate. Arrays of rollers, some of which are spring loaded, are spaced at 120° and disposed between a configured inner tube and an outer tube to provide for rollerable interfacing between the configured inner tube and the outer tube. A gas spring is centrally located to provide for linear positioning and for locking of the configured inner tube with respect to the outer tube. An alternate embodiment features a ball bearing array disposed between opposing races of the configured inner tube and outer tube to reference the configured inner tube to the outer tube.

Abstract: A longitudinally adjustable leg assembly, comprising a holder (9, 12) which is adapted to be fixed to the underside of a table top (1); first and second elongate carrier elements (2, 3) which are directed away from the holder (9, 12) and cooperate by threaded engagement. The first carrier element (2) is mounted rotatably but axially immovably in the holder (9, 12) and one (2; 3) of the first and second carrier elements (2, 3) having an external thread and the other (3; 2) of the first and second carrier elements (2, 3) being a tube having an internal thread portion at one end in threaded engagement with the external thread. An electric motor is arranged for rotating the first carrier element (2). A device is arranged for interrupting the current to the motor when the leg assembly is in a limit position of maximum or minimum length.

Abstract: Sturdy and easily adjustable lawn furniture provides for use on sloped surfaces ranging from zero to thirty degrees. Provisions are made so that adjustment of the furniture made be effected while in use. Additional features include a drink holder and a holder for printed materials.

Abstract: The invention relates to a drive for mechanically displacing and positioning two profile parts relative to each other, comprising: at least one tooth path connected to a one profile part, at least one toothed wheel connected rotatably to a second profile part for engaging on the tooth path, drive means, and a transmission mechanism for transmitting to the toothed wheel the power produced by the drive means, wherein the transmission mechanism is provided with at least one right-angled transmission.

Abstract: A first stopper supporting member (31), supporting a stopper (35) which controls movement of a second tubular member (22) of a telescopic unit (15) along a first tubular member (21), is disposed around the outer surface of the first tubular member (21). A second stopper supporting member (31a), supporting a stopper (35) which controls movement of a third tubular member (23) along the second tubular member (22) is disposed around the outer surface of the second tubular member (22). A facing end (71) of the first stopper supporting member (31) and a facing end (72) of the second stopper supporting member (31a) have nearly the same outer diameter. The resulting telescopic unit (15) is both attractive in appearance and free from the problem of being inadvertently caught by another object.

Abstract: A skeleton for umbrella tent mainly includes a top hub to which multiple brace poles are radially and pivotally connected to stretch by a predetermined angle; a bottom hub to which multiple stretch arms are radially and pivotally connected to stretch by a predetermined angle, and outer ends of these stretch arms are separately pivotally connected to a predetermined point on the brace poles; a flexible telescopic portion located between the top and the bottom hubs and consisting of multiple sections in the form of hollow truncated cones; and a pull rope extending through the telescopic portion with an upper end fixed to the top hub and a lower end hanging from the bottom hub to connect to a ring handle. By pulling the pull rope downward, the telescopic portion is folded to easily cause the stretch arms and the brace poles to move into a stretched position to set up the tent.

Abstract: A support assembly for supporting an object on a floor. The support assembly includes a leg member and a heel member mounted on said leg member. The heel member is adapted to engage the floor. A foot member is pivotally attached to the leg member. The foot member is adapted to pivot between an upright storage position and a lateral support position. When in the lateral support position, the foot member is adapted to engage the floor at a point spaced apart from the heel member. In a preferred embodiment, a cover is provided to conceal the foot member when placed in the upright storage position. In a preferred embodiment, the heel member comprises a height adjustable glide device that includes a base portion and a stem portion extending upwardly from the base portion. A shaft is disposed in the stem portion and operable engages an actuator disposed in a cavity formed in the base portion. The shaft operably engages the leg member to provide vertical adjustment of the leg member.

Abstract: An adjustment apparatus for adjusting the position of a back pad or seat pad of a seat has an inner tube with a series of spaced openings for securing at one end to the back or seat pad, and an outer tube telescopically engaged over the inner tube and secured to a support frame of the seat. The outer tube has a pinning opening for alignment with a selected one of the openings in the inner tube. A lever is pivotally secured on a pivot bracket on the outer tube for rotation about a pivot axis with a first end portion of the lever projecting over the pinning hole, and a pinning button projecting from the first end portion towards the pinning hole. The lever is movable between an operative position in which the pinning button extends through the pinning hole and an aligned hole in the inner tube to secure the tubes together, and a retracted position in which the pinning button is spaced from the pinning hole.

Abstract: A support structure for interposition between a base of a sloping base cooler and a roof during installation of the cooler onto the roof. The support structure comprises a transition component adapted to be connected to the cooler and to ducting protruding through the roof to feed cooled air from the cooler into the ducting. The transition component includes a movable prop or flap, separate from or formed with the transition component, to be positioned between the transition component and a horizontal surface such that the transition component, when fitted to a sloping base cooler, maintains the cooler in a vertically upright condition for assembly or transportation or storage.

Abstract: A support structure for the support of evaporative air cooler consisting of a mounting transition between the evaporative cooler and the ductwork of the installation. The mounting transition includes a means of fixing the evaporative air cooler to the transition without the use of fasteners, support and concealment of telescopic corner supports and support of an anti draft shutter assembly. The mounting transition also provides a means of transitioning air flow from a circular fan discharge to a square duct, and serves as a transportation pallet which can also be used as an installation aid.

Abstract: A computer stand for holding a notebook-type computer at a convenient height for use in a motor vehicle. The stand, which is free-standing, holds the computer in sight and reach of the driver and is particularly useful for reading location maps. It also facilitates the use of the computer in modem/facsimile operations while a commuter is in transit. The computer stand comprises a weighted base, a flexible column and a platform for detachably mounting a laptop computer. Weights in the base provide ballast for the computer stand. The column has both a telescopic section and a flexible segment so that the position of the platform can be easily adjusted, bringing any computer mounted thereon in reach and sight of the user without interfering with the seating or control of the vehicle.

Abstract: A support assembly for supporting an object on a floor. The support assembly includes a support bracket releasably mounted to the leg member. The support bracket and leg member are adapted so as to permit the support bracket to be rotated between at least three positions relative to the leg member. In one preferred embodiment, one of the support bracket and leg member comprise a post member and the other of the support bracket and leg member comprises a socket shaped to receive the post member.

Abstract: The invention provides a telescopic member having an inner cylinder slidably fitted into an outer cylinder in the axial direction and a lock mechanism, placed between the cylinders, for holding relative movements therebetween. A holder is secured to the outer cylinder and allows its inner circumferential surface to slide on the outer circumferential surface of the inner cylinder so that a frictional force is applied to the relative movements between the cylinders. The holder has a braking chamber on the side facing the inner cylinder to contain a friction body that rolls on the circumferential surface of the inner cylinder. The braking chamber has a taper surface so as to have a space that becomes narrower in the push-in direction of the inner cylinder, and first and second moving end surfaces that are separated with a predetermined distance in the push-in direction so as to intersect the taper surface, and is formed into a reversed trapezoidal shape in its cross-section viewed at one side.

Abstract: An adjustable receiver tube includes an elongated tube having a flat resilient strap extending within the tube from the upper end of the cylindrical side wall. A flange at the bottom of the tube will support an IV pole within the tube, and a threaded shaft threaded through an aperture in the side of the tube will move the strip into engagement with an IV pole to hold the pole snugly within the receiver tube. A cushion is preferably mounted in the tube on the flange, to frictionally engage the lower end of the IV pole and prevent rotation, horizontal movement, and prevent damage to the lower end of the IV pole.

Abstract: A drive assembly for mechanically displacing and positioning two profile parts relative to each other includes at least one tooth path connected to a first profile part, at least one toothed wheel connected rotatably to a second profile part for engaging on the tooth path, drive means, and a transmission mechanism for transmitting to the toothed wheel the power produced by the drive means, wherein the transmission mechanism is provided with at least one right-angled transmission. Also disclosed is a piece of furniture provided with such a drive, a profile part for assembly with the drive and a method for manufacturing such a profile part.

Abstract: A telescopic shaft for rapid length adjustment consists of a tube having a plurality of alternating circumferential ridges and grooves on at least a portion of an inner surface and having an oval cross-section with a major diameter DA and a minor diameter DB; a shaft disposed within the tube and having matching circumferential ridges and grooves, the shaft also having an oval cross-section with a major diameter DC and a minor diameter DD; and the ridges and grooves of the tube interengaging with the grooves and ridges of the shaft when the shaft major diameter DC is substantially parallel with the tube minor diameter DB.

Abstract: A supporting part extends vertically between the doll's legs when the doll is placed on the doll stand. The supporting part leads vertically upward to the crotch of the doll's body and is connected, by way of its upper end, to a bearing part that is fastened on the lower part of the doll's body by adhesive bonding. The lower end of the supporting part 2 is fastened in a sleeve which is inserted in a presentation plate or similar support. The sleeve has an internal thread and a headless screw in the lower part, whereby the supporting part is fastened and vertically adjusted.

Abstract: A lockable stand in order to be able to transport the stand. A central leg (2) is provided with a first support plate (26) and the other stand legs (3, 4) are provided with respective further support plates (36, 46) which are placed on the first support plate (26) of the central leg (2). Locking consist of pegs for locking the legs together are arranged on the support plates and coordinated holes or a strap of the central leg (2), in which the strap is fastened to a clamp fitting (25), engage one another. Locking of the legs in a retracted position is produced by means of a lock (27) arranged on the central leg (2). A manipulation of the stand by an operator can be performed in the upright position.

Abstract: An improved locking device for adjustable garment racks including an inner tube slidable in and out from an outer tube. The improved locking device includes a sleeve having a simplified locking tab for engaging and locking the inner tube in a position relative to the outer tube and a touch tab by which an operator may easily and safely manipulate the sleeve to an unlocked position for adjustment of the inner tube relative to the outer tube and again lock the inner/outer tube combination.

Abstract: Devices and methods are described by which antennas can be securely mounted upon rooftops and similar supporting surfaces. Antenna mounts are described that distribute the load associated with the antenna substantially evenly upon the rooftop or other support surface, so that potential damage to the roof structure is reduced or eliminated. In preferred embodiments, the antenna mounts are provided with support legs and load-distributing base members that are substantially devoid of sharp corners or angles. The antenna mounts also provide a platform located above and proximate the base members for the placement of weights to ensure the stability of the antenna mounts. This ensures that the weights are disposed above the roof and are not in contact with it. Connectors and/or adhesives are not required to secure the mount to a rooftop as the weighting is sufficient to provide a stable and wind resistant mount.

Abstract: An auxiliary device for aiding a bed-ridden or disabled patient to sit up in bed and leave the bed includes a holder, an arrangement for securing the holder onto a side of the bed, a post adjustably received in the holder, with an upper end of the post being provided with handles or grips for the patient. For securing the holder to the bed frame, U-shaped clamp elements are provided which can clamp onto a frame member of the bed frame or clips which hold the holder are secured by threaded fasteners.

Abstract: Linear motion table leg hereby a linear motion assembly is located between a base and a table top mounting plate. Arrays of rollers, some of which are spring loaded, are spaced at 120° and disposed between a configured inner tube and an outer tube to provide for rollerable interfacing between the configured inner tube and the outer tube. A gas spring is centrally located to provide for linear positioning and for locking of the configured inner tube with respect to the outer tube.

Abstract: In an integrated telescoping mast-payload assembly, the payload forms the top telescoping section.