Abstract: In some embodiments, a bow stand comprises a first body portion comprising a first cavity. A second body portion is moveable with respect to the first body portion. The second body portion comprises a second cavity. A third body portion is moveable with respect to the first body portion and comprises a third cavity. The first cavity, the second cavity and the third cavity form an engagement cavity arranged to engage a frame of an archery bow.

Abstract: Various designs for a stand for a laser projection device including feet capable of being used in indoor and outdoor environments and the leg retention devices to lock legs of the stand together are shown. In one example, the stand includes feet with a rotatable spike structure that can be implanted in soft environments outdoors and hidden to protect indoor flooring. In another example the stand includes a leg retention device including a clip to clamp or hold the legs of the stand together in a closed position. In another example, a leg retention device including detents are used to hold the legs of the stand together in a closed position.

Abstract: The present invention is directed to a portable folding chair including a central assembly having an upper portion and a lower portion. The lower portion may be connectable to the upper portion so that the upper portion may swivel with respect to the lower portion. The portable folding chair may include leg members attached to the lower portion of the central assembly. Each of the leg members may be moveable between a folded position and a deployed position. The portable folding chair may further include seat members that may be attached to the upper portion of the central assembly. Each of the seat members may be moveable between a folded position and a deployed position.

Abstract: A portable hose carrier for RV sewer hoses is disclosed. The portable hose carrier has an outer tube, an inner tube within the outer tube, and a clamp encircling one end of the outer tube. When the clamp is open, the inner tube may telescopically slide within the outer tube. When closed, the clamp fastens the inner tube and outer tube together so long as some portion of the inner tube remains within the outer tube. A relief slot in the outer tube allows the outer tube's diameter and circumference to be reduced when the clamp is in the closed position. Each of the inner tube and outer tube has a respective endcap at opposing ends of the inner and outer tubes. At least two inner legs and two outer legs are rotatably attached to the end cap of the inner tube and outer tube, respectively.

Abstract: The present disclosure proposes a height-adjustable folding chair including a base, retractable arms connected to the base and legs connected to the base; the base includes a support enclosing an inner cavity and a locking assembly arranged in the inner cavity; the support includes an upper receiving portion connected to the arms and a lower receiving portion connected to the legs; the locking assembly includes a leg unlock button inserted in the inner cavity and slidable relative to the support, a first spring, and a first locking block. The first locking block defines locking slots each with a downward opening; an end of each leg connected to the lower receiving portion defines a positioning slot and is arranged with a positioning tongue protruding from an edge of the positioning slot and a positioning block protruding upward from a bottom of the positioning slot and matched with a corresponding locking slot.

Abstract: A pipe fitting stand for supporting a pipe during a work operation includes a table, and a plurality of legs coupled to the table and movable between a deployed position and a stowed position. The pipe fitting stand additionally includes a locking mechanism movable between a first position in which the locking mechanism engages at least one of the plurality of legs, and a second position in which the locking mechanism disengages the at least one of the plurality of legs. The locking mechanism is configured to secure the table in the stowed position in the second position.

Abstract: A multi-legged equipment support, components thereof, and associated methods. The equipment support comprises a stand and an equipment holder. The stand includes a hub and multiple legs pivotable with respect to the hub. The legs are pivotable outward from stowed positions to preset operational pivoted positions. The user can select a preset operational pivoted position in which outward pivoting of a leg will stop based on moving an actuator between preset locations.

Abstract: A stable base supports a handle portion of an emergency light. The stable base has a stand portion and a base portion, which are separated from each other. The stand portion is assembled about the handle portion of the light, and has two pivotable legs extending therefrom. The handle portion itself together with the base portion forms a third leg. The base portion is formed from an upper and a lower portion assembled with a connecting member. A plate is formed on the lower base portion. In a first configuration, the legs are generally transverse to an axis of the emergency light handle, to form a tripod-like support on approximately level ground. In a second configuration, the legs are disposed downwardly so as to be generally parallel to the axis of the handle portion, such that the tips of the legs are disposed downward and are adapted to be inserted into the ground to resist high winds and gusts.

Abstract: A connection assembly for holding a support member in position includes: a base defining a receiving hole to receive an end portion of the support member, and a guiding hole in a lateral surface thereof, which communicates with the receiving hole; a fixing block; a locking member slidably received in the guiding hole and slidable between a first position where the locking member is engaged with the support member so as to hold the support member in position, and a second position where the locking member is disengaged from the support member; and an actuating member connected to the fixing block and the locking member, the actuating member being configured to drive the locking member to move between the first position and the second position.

Abstract: A blocking device for shafts includes a housing having a first seat for receiving a shaft movable along a first sliding axis, an actuator received in a second seat formed in the housing and movable along a second sliding axis away from and towards a blocking position of the shaft, and at least one runner which is received in the housing and which is interposed between the actuator and the shaft. The actuator is formed such that, when it is moved towards the blocking position, it urges the one runner both against the shaft and against the housing so as to block the actuator, the runner and the shaft with respect to the housing.

Abstract: A support bracket includes at least three supporting rods, a middle rod, at least three first connecting rods and at least three second connecting rods. For each supporting rod, one end of it is configured to be supported on a supporting surface, the other end of it is configured to support a campfire assembly. One end of the middle rod is provided with a first pivot, and the other end of the middle rod is provided with a second pivot. For each first connecting rods, one end of it is pivotably connected to corresponding one of the at least three supporting rods, the other end of it is pivotably connected to the first pivot. For each second connecting rods, one end of it is pivotably connected to corresponding one of the at least three supporting rods, the other end of it is pivotably connected to the second pivot.

Abstract: A mobile self-unloading observatory is presented for transporting observation equipment such as a telescope to a remote location, with a subsequent automatic setting up the equipment for observation. The observation equipment is transported on a suspended platform that protects the equipment against shock and vibrations. At the remote location, a self-leveling telescopic pier is extended to the ground under the chassis of the observatory, and released from being held within a frame of the observatory. The telescopic pier is extended towards the platform to support the observation equipment over the ground. The transportation, the setting up, and the teardown of the equipment may be performed without having to manually handle heavy or bulky objects.

Abstract: The present application belongs to the technical field of camera equipment, and particularly relates to a single-hand-lever double-joint-control adjustable hoop type bearing frame. The bearing frame comprises a fixed part; the fixed part comprises a fork frame, fixed supporting rods and a sliding frame; a base is arranged above the fork frame; a first sliding part is installed on the fixed supporting rod, and can be locked or slide relative to the fixed supporting rod; the first sliding part comprises an upper locking mechanism, a lower locking mechanism and a locking control device; the locking control device can control locking or loosening of the upper locking mechanism on the fixed supporting rod; and the fixed part is provided with a magnetic latch device.

Abstract: A quick installation plate with a mobile phone clipping function includes a bottom plate and a camera screw on the bottom plate. Both sides of the bottom plate have a dovetail slot lockable by a tripod head; the bottom plate has a mobile phone clipping device that can be rotated and opened to clamp a mobile phone; the mobile phone clipping device has a first pin, two rotary arms rotatable around the first pin, and a moving part installed at an end of the rotary arm and can be pulled longitudinally along the rotary arm; the rotary arm has a connection structure elastically coupled to the moving part; the moving part is substantially n-shaped and has both ends disposed at the ends of the two rotary arms respectively; and the moving part has a second pin rotatable around the second pin to open the clamping part.

Abstract: A photographic equipment support, comprising a support frame and a fixing component, wherein support frame has a first mounting axis, fixing component comprises a fixing device, a second mounting axis, a first locking sleeve, a second locking sleeve, a bolt and a locking member, fixing device is used to fix photographic equipment, fixing device is fixed on the second mounting axis, first locking sleeve is sleeved on the first mounting axis, second locking sleeve is sleeved on the second mounting axis, the bolt passes through mounting holes on first locking sleeve and second locking sleeve, locking member is threadedly connected to bolt, first locking sleeve has a first limiting structure, second locking sleeve has a second limiting structure matching first limiting structure, and when first locking sleeve and second locking sleeve are locked, first limiting structure and second limiting structure cooperate with each other.

Abstract: A portable sensor calibration target includes a frame assembly, a first panel, and a second panel. The frame assembly may include three legs and a plurality of frame edges that is configured to form a first frame and a second frame and is configured to be held at a pre-selected height above ground by the legs. The first panel is removably attached to the first frame in an unfolded position, and includes a plurality of boards and a plurality of hinges connecting the plurality of boards. The first panel is configured to fold at the plurality of hinges into a folded position. The second panel is removably attached to the second frame adjacent to the first frame. The first panel and the second panel meet to form an edge, which is detectable by a detection system of a vehicle for calibrating the detection system.

Abstract: A support assembly is configured to be arranged as a tripod and as a handle. The support assembly has a first leg, further having a first leg upper plate, a first leg lower plate having a first leg lower plate magnet, and a first leg lower magnet. A second leg further has a second leg upper plate having a second leg upper plate magnet, a second leg lower plate, and a second leg lower magnet. A third leg further has a third leg upper plate having a third leg upper plate magnet, a third leg lower plate having a third leg lower plate magnet, and a third leg stop plate. The legs can be arranged to form either a handle or a tripod.

Abstract: The invention provides a quick release mechanism that allows two component parts to be connected to and disconnected from each other easily. In particular the invention provides a clip on and off system that allows two components to be connected together at the push of a button. The invention is particularly intended as a quick release system for the attachment of a firearm to a bipod.

Abstract: A track system, including at least one flat base with at least one cavity, at least one sliding path, at least one bolt, and at least one track nut. An end of a bolt is threadedly connected to an electronic device fixing apparatus, or a camera, or other accessory. At least one cavity is disposed on the flat base, and both sides of the flat base are provided with a side wall which functions as the slide path. The track nut is provided with a cavity, such as an internally threaded hole, and two sides of the track nut slide along the side walls.

Abstract: In some embodiments, a magnetic mounting assembly can include a flange portion. The flange portion may include a base plate coupled to a magnet and including a first hinge along a first edge and a second hinge along a second edge. The flange portion may also include a sidewall extending from the base plate and including a hinge along a distal end of the sidewall. Further, the flange portion may include a mounting plate including a hinge configured to mate with the hinge of the sidewall to provide a mounting surface configured to pivot about the hinge.

Abstract: A retractable support assembly for a firearm. The assembly includes a swiveling support structure configured for attachment to or adjacent to the forward end of a firearm extension component on the firearm. The support structure, when attached, is substantially centered on the longitudinal axis of the firearm barrel and permits movement of the longitudinal axis of the firearm barrel relative to a position fixed by deployment of the assembly for variable aiming of the firearm. The assembly includes a plurality of legs pivotably connected to the support structure for movement between an extended position wherein the assembly supports the outer end of the longitudinal axis of the firearm and a retracted position. The assembly also has a leg-locking mechanism connected to the support structure for locking the legs in the extended position.

Abstract: Disclosed is a foldable five-star foot, comprising a center body and five legs; each one of the legs is provided with a first mounting block and a second mounting block; each one of the first mounting blocks corresponds to a first mounting groove; each one of the second mounting blocks corresponds to a second mounting groove; and the first and second mounting grooves are formed on the center body. The first mounting groove and the second mounting groove are internally provided with a pair of a first connecting block and a second connecting block; each one of the first connecting blocks is connected with each corresponding one of the first mounting blocks, and each one of the second connecting blocks is connected with each corresponding one of the second mounting blocks. The five-star foot is advantaged in simple and reliable structure, convenient folding, large application scope and easy popularization.

Abstract: A deployable prop is provided that is capable of transitioning from an undeployed state to a deployed state in which the prop can be used to support an object against or adjacent to a structural surface. In one embodiment, the deployable prop includes a bistable “carpenter's” tape, a foot member that is engaged to one end of the tape, and a head member that is engaged to the other end of the tape. The tape, foot member, and head member can be placed in an undeployed state that has “roll” shape and in a deployed state in which the tape extends substantially linearly between the foot and head members and can be used to support an object against or adjacent to a structural surface.

Abstract: An extendable leg 10 for a tripod, the leg 10 comprises two or more leg-stages 11b, 11c, each leg-stage 11b, 11c moveable axially relative to one or more of the or each other leg-stages to lengthen or shorten the leg. The leg 10 includes a clamp assembly to releasably prevent the relative movement when the leg is at the desired length. The clamp assembly includes a leg brake 22a moveable between a first leg-stage locking position and a second leg-stage release position. In order to control movement of the leg brake 22a between the first and second positions, an actuation means 16 is provided. A cable 17 is operably connected at a first end to the actuation means 16 and at a second end to the leg brake 22a, such that operation of the actuation means 16 causes the cable 17 to move the leg brake 22a.

Abstract: An articulated support includes a base and pitch-roll-yaw assembly having a pitch/roll subassembly and a yaw subassembly. The pitch/roll subassembly includes a central member configured for spring-loaded rotation about a pitch/roll axis, and the yaw subassembly has a U-shaped member configured (a) at end portions to engage under-wing connection lugs of an unmanned aircraft system (UAS) and (b) at a central portion to mate to the central member of the pitch/roll subassembly in a rotatable manner providing for rotation of the yaw subassembly about a yaw axis. The pitch/roll subassembly and yaw subassembly are further co-configured to define first and second fixed yaw positions in which a fuselage of the UAS is, respectively, parallel to and perpendicular to the pitch/roll axis, permitting roll motion and pitch motion of the UAS when mounted on the articulated support.

Abstract: A fixture for mounting a laser to an extended edge, such as ship bulkhead, so that precision measurements can be made at close ranges, including over-the side situations. The fixture has a set of attached mounting plates, the first of which includes a ring assembly on which multiple types of lasers can be mounted. The fixture also has a plate with a hook and clamping mechanism to secure the fixture to the extended edge. Gussets connect the plates at an angle that helps creates a wide range of sight for the laser, as well as a secure rotational pivot point to assist with laser mounting after the fixture is attached to an edge. This fixture allows the laser operator to forgo tripods and similar fixtures which, at ground level and close quarters, allow only a limited field of view, as well as elevated, over the side situations, which are awkward and unsafe for set up and adjustment.

Abstract: A height adjustable seatpost assembly is basically provided with a first telescopic member, a second telescopic member, a positioning structure, an operating structure and an electric actuator. The second telescopic member is telescopically movable within the first telescopic member. The positioning structure is provided on one of the first and second telescopic members. The positioning structure includes a pair of longitudinal spaced positioning members configured to engage the other of the first and second telescopic members, respectively. The operating structure is at least partly movable with respect to the other of the first and second telescopic members in the longitudinal direction. The operating structure includes a release member that is disposed between the positioning members. The release member selectively disengages one of the positioning members. The electric actuator moves the operating structure relative to the other of the first and second telescopic members in the longitudinal direction.

Abstract: An improved leg for an apparatus for supporting an object. The improved leg may be provided as at least one leg of a tripod for supporting an object, the tripod having a plurality of legs each having upper and lower leg assemblies that are arranged in moving relation with each other, wherein the at least one leg is configured to prevent that leg of the apparatus from collapsing.

Abstract: The present invention relates to a device or a pair of devices for lifting, maneuvering, winding or unwinding reels, each comprising a center retractable member having an adjustable length; a first and second angularly-oriented vertical support bar, each pivotally mounted, at its proximal end, on opposite ends of the center retractable member, wherein the first and second angularly-oriented vertical support bars are pivotally joined to each other at their distal ends; a reel support member mounted on the joint of the first and second angularly-oriented vertical support bars, wherein the reel support member is adapted to removably by received by the bore of the reel; and a means for adjusting the length of the center retractable member, thereby moving the reel support member upward and downward, respectively.

Abstract: Equipment is temporarily supported above the ground by a self-supporting, readily erectable and transportable mast. The mast comprises a pneumatically inflatable elongate tube having a first end to which the equipment is coupled and a second end coupled to a ground support tripod. The mast is provided with bracing structure adapted to brace the tube when inflated and including respective flexible members extending from each tripod leg to the first end of the tube.

Abstract: An extendable leg (11) for a tripod (10) (for supporting an optical apparatus such as a video camera), the leg being V-shaped and having telescopic side members (15,16) to enable the length of the leg to be varied with hinge means to connect the side members to each other at an apex of the V, means to connect the side members to a head (12) of the tripod which allow the angle of the V to vary with extension and retraction of the leg, and clamping means (50) to clamp the side members at a required length; wherein the leg has a mechanism for controlling the extension and retraction of the side members when the locking means is released whereby the apex of the leg is constrained to move generally linearly in the lengthwise direction of the leg.

Abstract: A modular device support system including a top body for attaching to any device needing support and a main body capable of connecting to the top body. The main body has two attachment pivots connected to opposing side walls, the attachment pivots may be pivotably mounted to the opposing side walls so that each attachment pivot can be adjustably positioned in at least one position of a plurality of positions. At least one accessory can connect to the attachment pivots.

Abstract: A laser target assembly, which doubles as a pipe plug, has an outer sheath with a first end that fits within the end of a cut section of pipe, and a second, larger-diameter end that fits into the bell of an uncut section. A circular interior panel, made of tough plastic, is positioned in about the middle of the sheath perpendicular to its central axis. A lower half of the panel, which functions as the target, is opaque; the balance is transparent. A target scale, having evenly-spaced linear markings, is provided on the opaque portion of the panel. A bubble level, positioned within the larger-diameter end adjacent the panel, enables a pipe layer to position the target scale in a vertical orientation. Interior handles are used to adjust axial alignment of target assembly and remove the target assembly when it is installed within a bell.

Abstract: A pole assembly includes a slide mounted reciprocally to a pole. The slide includes an upper extremity, a lower extremity, and a handle between the upper extremity and the lower extremity. First and second jaws are mounted reciprocally to the slide between gripping positions for gripping the pole therebetween and released positions for releasing the pole therebetween. The slide is disabled from moving reciprocally relative to the pole, in the gripping positions of the first and second jaws. The slide is enabled for moving reciprocally relative to the pole, in the released positions of the first and second jaws. Each of the first and second jaws reciprocates obliquely relative to the pole from the released position away from the pole and the upper extremity of the slide, and the gripping position toward the pole and the upper extremity of the slide.

Abstract: A parking stand for a detachable front loader assembly including a support leg pivoted to a boom, which is able to pivot between an extended and a retracted position. A set of parallel struts engage a locking plate, which is attached to the support leg. Being engaged within locking mechanism divots, the support leg is secured within an optimally extended position. Extending the parking stand support leg into a parking configuration is achieved by way of a series of semi-automated actions that are triggered and propelled by way of hydraulic movement of a loader's boom and bucket. Such semi-automated actions include unlocking, extending, and securing the support leg. Retraction of the support leg is similarly executed.

Abstract: A guitar support stand includes a mounting plate that is attachable to a stable support such as a musical piece of equipment having a substantial weight. A guitar support member is releasably attached to the mounting plate and includes at its upper end a support bracket for supporting the neck portion of a guitar.

Abstract: Provided is a height-adjustable table configured such that a height adjustment member rotates in response to an operation of an actuation unit, thereby being released from a locked state, and when an upper plate of the table is vertically lifted to a desired level, the operation of the actuation unit is stopped, and the height of the upper plate is adjusted step by step. Optimal space utility and a simple inner structure of the height-adjustable table can be accomplished, thereby reducing manufacturing cost and increasing user convenience.

Abstract: A health aid, a health aid kit, and a method for treating neck, shoulder and back pain including a first elongated member, a second elongated member, and an attachment connecting the first and second elongated members and configured for the first and second elongated members to move between an open position, wherein a bottom end of each of the first and second elongated members are separated by a first distance, and an engaged position, wherein the bottom ends are separated by a second distance that is less than the first distance. Wherein the health aid kit includes instructions for carrying out the methods for treating neck, shoulder and back pain.

Abstract: In a stake-out marker for staking out buildings and the like with a foot plate (10) and a carrier plate (16) carrying a reflection element (22) the carrier plate (16) can be adjusted relative to the foot plate (10) between a transport position in which the carrier plate (16) lies substantially parallel to the foot plate (10) and a work position in which the carrier plate (16) stands vertically to the foot plate (10). The foot plate (10) has at least one perforation (48, 50, 56) with a first edge (52) running parallel to the carrier plate (16), standing in its work position, in the reference plane (20) of the reflection element (22), and with a second edge lying vertically to the first edge in a plane running vertically to the foot plate (10) through the center of the reflection element (22).

Abstract: A photography supporting frame comprises a base seat and supporting legs sequentially arranged around the base seat. Connecting bosses are arranged around the base seat; clamping teeth are sequentially arranged on the peripheries of the connecting bosses. The supporting legs each comprise a locating hook, a ball, a spring, an insertion piece, a foot shaft sleeve and a supporting leg rod. The ball and the spring are sequentially arranged in a cavity of the insertion piece from up to down; the locating hook is arranged in the middle of the upper portion of the insertion piece and connected to the ball. The insertion piece is arranged in the foot shaft sleeve. One end of the foot shaft sleeve is connected to one of the connecting bosses, and the other end of the foot shaft sleeve is arranged on the supporting leg rod.

Abstract: A portable support for supporting equipment above a surface having an opening to a subsurface space. The support includes a head, an elevator on the head, and legs connected to the head for supporting the head above the surface. Each of the legs has a foot for engaging the surface when supporting the head above the surface. The support also includes an elongate rod vertically mounted on the elevator for movement between a raised position, in which an upper end of the rod extends above the head, and a lowered position, in which a lower end of the rod extends below the feet of the legs to extend into the subsurface space. The support includes an instrument platform positionable on the lower end of the rod when in the lowered position to support the equipment in the subsurface space when the rod is in the lowered position.

Abstract: A guitar stand has a base section, a pair of first frames arranged at an opened position or a closed position, a pair of second frames and a pair of third frames arranged at the use position or the folded position. A slider for holding the first frames at the closed position and the second frames at the folded position is mounted to upper ends of the first frames. The first frames, second frames and the third frames are opened at the same time by unlocking the slider, and the guitar stand in a folded state can be brought into a use state.

Abstract: A kit for supporting and multi-directionally aiming a heat source. The kit includes a heat air gun, a tripod, and an extension arm. The tripod and/or the extension arm support(s) the heat air gun so as to allow the heat air gun to be supported while having multi-directional aiming.

Abstract: A multi tool with a handle arranged along a longitudinally aligned axis. The handle has a first end and a second end and a housing for containing a first tool. The multi tool also has a prop which interoperates with the first handle and provides stability against overturning of the multi tool when supporting a device. The multi tool also has a mount which is interoperable with either the handle or the prop. The mount will maintain a device in an upright position.

Abstract: A support for supporting equipment includes at least one elongate leg element at least partially supporting an apex selectively, detachably mountable to equipment, where the leg includes a first end proximate the apex and a second end distal the apex, and where the leg is pivotal about an axis proximate the first end throughout a limited arc. A securement assembly pivotably interconnects the first end of the leg with the apex. The securement assembly has selectable resistance to movement along the arc as a result of selectively increasing or decreasing the resistance between at least three friction plates having surfaces in face-to-face engagement with one another.

Abstract: A Dutch oven lid holder having a horizontally oriented support ring. Three support leg members have their top ends telescopically received in tubular coupling members formed on the support ring. The area beneath the support ring and within the perimeter of the support leg members defines a lid storage space. A lid support assembly has a horizontally oriented tubular sleeve portion having a tension coil spring passing therethrough. The opposite ends of the coil spring are detachably secured to brackets on the support ring. A vertically oriented anchor leg has its top end adjustably received on a T-connector portion extending downwardly from the tubular sleeve portion. The anchor leg has a hook on its bottom end that loops under the handle of a Dutch oven lid. Anchor arms extending inwardly from the respective support leg members would maintain a downward force on the Dutch oven lid causing the coil spring to be place under tension.

Abstract: Embodiments of golf bag support mechanisms are disclosed herein. Other examples and related methods are also generally described herein.

Abstract: A trajectory guide for providing access to a target site of a living subject along a desired path comprises a baseplate including a clamp lock, a guide member at least partially contained within the baseplate and having a channel therein, a plurality of adjustable legs each including a first end and a second end, wherein the first end is coupled to the baseplate, and a leg lock coupled to each adjustable leg and moveable between an unlocked position and a locked position in order to set a desired length of the adjustable leg, wherein the adjustable legs and the guide member are structured to be adjusted to provide an infinite number of trajectories in three-dimensional space extending through the channel in the guide member toward a target.

Abstract: Equipment is temporarily supported above the ground by a self-supporting, readily erectable and transportable mast. The mast comprises a pneumatically inflatable elongate tube having a first end to which the equipment is coupled and a second end coupled to a ground support tripod. The mast is provided with bracing structure adapted to brace the tube when inflated and including respective flexible members extending from each tripod leg to the first end of the tube.

Abstract: An intravenous (IV) pole system for supporting medical equipment having a base with legs, a mast engaged to the base, and a lifting mechanism including a gas spring engaged to the base and the mast. Each of the legs includes at least one wheel. The lifting mechanism is constructed to position the legs in an extended configuration and a retracted configuration. The lifting mechanism is further constructed to raise the legs and wheels relative to the base and relative to a surface. The lifting mechanism is configured to position the wheels proximate to the mast in the retracted configuration.