Abstract: A mount system for a monitoring device is disclosed. The mount system may include an extension arm attached to a device structure for housing the monitoring device. The mount system may include an alignment cup coupled to a support structure, wherein the extension arm is received through a through hole in a base of the alignment cup, and an oblong fitting attached to the extension arm opposite the device structure, wherein the oblong fitting is complementarily shaped to be received within the alignment cup to be received within the alignment cup, such that when the oblong fitting is received within the alignment cup, the device structure is aligned into a monitoring location. The mount system may include a dampening component between the support structure and the extension arm to bias the device structure into the monitoring location.

Abstract: A frame structure of a hoist, the frame structure including a support frame structure, a bearing wheel arrangement fastened to the support frame structure by suspenders to support the hoist on a main support structure and to move the hoist on the main support structure, whereby the bearing wheel arrangement includes, in the movement direction of the hoist, bearing wheels arranged on opposite sides thereof, and upper sheave arrangements secured to the support frame structure, wherein the support frame structure includes two plates arranged opposite and at a distance from each other, the upper parts of the plates bent towards each other, and in the support frame structure there is arranged an axle passing through both plates, on which axle a sheave is arranged between the plates, and the bent upper parts of the plates are detachably fastenable by a wedge locking to the suspender in order to adjust the mutual distance between the bearing wheels arranged on opposite sides of the support frame structure by means o

Abstract: This disclosure relates to a bracket apparatus for tool-less assembly of furniture products. The furniture products are equipped with a bracket apparatus that enables the furniture products to be assembled and disassembled without the use of tools or additional hardware. The bracket apparatus integrated into the furniture products permits the furniture products to easily switch between an assembled configuration and a disassembled configuration.

Abstract: A securely mountable/dismountable electronic equipment support stand includes electronic equipment and a support stand. The electronic equipment is provided with a first arc groove. The support stand includes a bottom base, a top base, and a supporting portion. The top base is provided with two first pegs corresponding to the first arc groove. The bottom base is formed with a receiving space corresponding to the supporting portion. The supporting portion has two ends respectively pivoted to and arranged between the bottom base and the top base. An adaptor board is further disposed at one side of the support stand. The collaborative combination between the first arc groove and the two first pegs allow the electronic equipment to be fixed to the top base of the support stand but still allowing the electronic equipment to rotate for adjustment of the electronic equipment on the support stand to orient toward different directions.

Abstract: A panel television support and mounting kit allows the consumer to employ any of the three modes of support, namely stand mount, elevated console mount and wall mount. The elevated console mount incorporates a vertical spine to elevate the panel television above the console and an offset arm to support the television over an upper shelf of the console. A mounting structure is provided that can be attached to the spine or to a wall. Pivoting and tilting is accommodated by the mounting structure.

Abstract: A system and method for an overhead display assembly for positioning a display monitor above an electronic gaming machine are provided. The overhead display assembly may include a monitor frame securable to a display monitor, the monitor frame including at least one roller mechanism that is pivotally coupled to the monitor frame. The overhead display assembly may also include a support stanchion configured to extend vertically relative to a gaming machine, the support stanchion including an upper end that is vertically displaced above the electronic gaming machine. Finally, the overhead display assembly may include a track mechanism coupled to an upper end of the support stanchion and presenting a track portion configured to engage with the roller mechanism to support the display monitor and the monitor frame.

Abstract: A method for capturing aerial images is carried out using a geographical area using a self-piloted aircraft according to a predetermined flight plan and an image capture apparatus mounted on the aircraft while being movable relative to the aircraft around a rotation axis. The method includes capturing a first series of images during a single flyover of the geographical area by the aircraft by positioning the image capture apparatus iteratively according to a first sequence of angular position(s), and then capturing a second series of images by positioning the image capture apparatus iteratively according to a second sequence of angular position(s) including at least one angular position distinct from each angular position of the first sequence.

Abstract: Provided is a ceiling type display position adjusting device which employs a gear structure and enables a display to be positioned above the ceiling when the display is not watched to descend from the ceiling when the display is watched and even automatically adjusts a watching angle.

Abstract: A recessed housing assembly includes a pan, a can, a junction box, and hanger bars. The telescoping hanger bar includes mounting brackets each including an ear defining a plane, and each ear includes a nail holder, a bendable flange, and a bendable return. Each ear plane contains the nail holder adjacent to the bendable flange partially separated by a score line. The bendable flange and bendable return allow the hanger bar to be configured by the user for attachment to a T-bar grid, steel studs, furring strips, engineered joists, or standard wooden joists commonly found in building construction.

Abstract: A tent lighting assembly may include a main light mover grow tent having a main tent roof section, a main grow lamp translatably suspended therefrom, and a drive motor to translate the main grow lamp. A first auxiliary light mover grow tent may include a first auxiliary tent roof section and a first auxiliary grow lamp translatably suspended therefrom. A first elongate rigid member may connect the main grow lamp to the first auxiliary grow lamp such that the first auxiliary grow lamp translates with the main grow lamp. A second auxiliary light mover grow tent may also include a second auxiliary tent roof section and a second auxiliary grow lamp translatably suspended therefrom. A second elongate rigid member may connect the main grow lamp to the second auxiliary grow lamp such that the second auxiliary grow lamp translates with the main grow lamp.

Abstract: A carrier arm joint device for a carrier arm of a stand device for arranging in the operating room and for displacing a medical device held on the carrier arm is configured for setting a payload corresponding to a weight of the medical device to be taken up by the carrier arm. The device includes at least one pivot axis for mounting at least one strut of the carrier arm, respectively; and a support axis for supporting a lever configured to transmit forces holding the carrier arm between the strut and the carrier arm joint device A distance between the axes is adjustable within an adjustment range in order to set the payload; the size and/or the extent of the adjustment range is independent of the position of the pivot axis. It is possible to maximize the adjustment range and therefore the payload spectrum in a comparatively compact and structurally rigid joint. A carrier system and a stand device can include at least one such carrier arm joint device.

Abstract: A rotatable connection for a mount device for placement in an operating room includes an adjustable stopping mechanism that can be disposed between a first connection component and a second connection component that is mounted rotatably relative to the first connection component about an axis of rotation. The adjustable stopping mechanism may be adapted to establish at least two different relative rotational angles of the connection components relative to one another or at least two different rotation ranges. The adjustable stopping mechanism includes a rotation lock that can be disposed non-rotatingly at the first connection component and a coupling part that can be disposed non-rotatingly at the second connection component and that has a form-locking contour for establishing individual rotational angle positions, and may include a stopping device with an integral stop. The stopping device may be non-rotatingly positionable. A support system or mount device are also provided.

Abstract: A monitor housing apparatus comprises an opening and closing mechanism, a drive motor, a power supply, a backup capacitor, a contact switch, and a controller. The opening and closing mechanism turns a monitor around a rotation shaft. The power supply supplies electrical power to the drive motor. The backup capacitor supplies power to the drive motor in the event that the supply of power from the power supply to the drive motor is shut off. The controller applies voltage to the backup capacitor when the contact switch detects that the monitor is in its deployed state, and halts the application of voltage from the power supply to the backup capacitor when the contact switch detects that the monitor is in its stowed state.

Abstract: A system for storing and cultivating plants and enhancing usable area or space is provided. One or more racks are provided for housing plants, such as potted plants, in arrays extending in at least a vertical direction. Lighting is provided to provide ultraviolet and infrared radiation in the system. At least one rack is selectively moveable with respect to at least one lighting element, such that proximity between plants and at least one lighting element may be selectively varied.

Abstract: A ceiling clip for mounting a sign or display includes a spool portion on which is wound a cord that is selectively unwound to a desired length and attached in a line clip for suspending the sign or display from the cord. The ceiling clip includes first and second flanges wherein the second flange is shaped to fit into a channel. The second flange is tapered for insertion into the channel and is of a width to frictionally engage the channel. Multiple ceiling clips may be inserted into the channel. The channel has magnets, hooks, interlocking cleats, or other mounting means that engage a mounting location to mount the channel, ceiling clips, and the sign or display at the mounting location with a single mounting motion. The channel may be mounted or unmounted using a gripper on a pole.

Abstract: A hanger bar assembly for a recessed luminaire is disclosed. The hanger bar assembly includes a first hanger bar member having a first attachment structure disposed on an end thereof, and a second hanger bar member having a second attachment structure disposed on an end thereof, the second hanger bar member being adjacent to the first hanger bar member. The first and the second attachment structures each include a first wall having a first fastener aperture and a second wall having a second fastener aperture, the first and second fastener apertures being formed about a common central longitudinal axis.

Abstract: An apparatus for hanging and manipulating items that are suspended from a ceiling or wall. The apparatus includes hanging structures to suspend items from a wall or ceiling, a remotely controlled motorized take up reel system to raise and lower the items by way of suspension lines so the items can either be positioned, replaced, repaired or displayed, and a leveling system. The system can be safely operated without a person having to move a ladder in place and go up the ladder to work with the suspension item.

Abstract: The invention includes an access structure integration assembly and an integrated system using the assembly. An access structure integrated assembly includes at least one channeled structure and at least one joist socket slidingly engaged with the channeled structure. The channeled structure is configured to secure to a base structure, such as a suspended work platform system, and the joist socket is configured to secure to a second structure, such as a supported work platform system. An integrated system includes a base structure, a second structure and at least two integration assemblies, each assembly including a channeled structure secured to the base structure and a joist socket secured to the second structure and slidingly engaged with the channeled structure.

Abstract: The application discloses a television base, comprising a supporting base fixedly connected with a television display screen and at least three supporting rods; the supporting base comprises rotating connection portions, the supporting rods are rotationally connected with the rotating connection portions, a surface of the supporting base provided with the rotating connection portions is located in a first plane, and the first plane is perpendicular to a plane where the television display screen is located; all the supporting rods relatively rotate around the supporting base in the first plane, when the supporting rods rotate to be opened, the supporting rods are positioned in the first plane to support a television shell; and when the supporting rods rotate to be folded, the supporting rods are positioned in the first plane and are perpendicular to the plane where the television displays screen is located.

Abstract: A vehicle collects oblique imagery along a nominal heading using rotated camera-groups with optional distortion correcting electronic image sensors that align projected pixel columns or rows with a pre-determined direction on the ground, thereby improving collection quality, efficiency, and/or cost. In a first aspect, the camera-groups are rotated diagonal to the nominal heading. In a second aspect, the distortion correcting electronic image sensors align projected pixel columns or rows with a pre determined direction on the ground. In a third aspect, the distortion correcting electronic image sensors are rotated around the optical axis of the camera. In a fourth aspect, cameras collect images in strips and the strips from different cameras overlap, providing large-baseline, small-time difference stereopsis.

Abstract: An adjusting device having first and second extendable members includes a synchronizing mechanism for making adjustments of the first and second extendable members. Each of the first and second extendable members defines an extension axis and includes an extendable portion adjustable along the extension axis to an extended length. The synchronizing mechanism is connected to the first and second extendable members and is operable to simultaneously adjust an extended length of the first and second extendable portions such that the extended length of the first extendable portion and the extended length of the second extendable portion are substantially equal.

Abstract: A vehicle collects oblique imagery along an intercardinal nominal heading using rotated camera-groups with distortion correcting electronic image sensors that align projected pixel columns or rows with a pre-determined direction on the ground, thereby improving collection quality, efficiency, and/or cost. In a first aspect, the camera-groups are rotated diagonal to the nominal heading. In a second aspect, the distortion correcting electronic image sensors align projected pixel columns or rows with a pre-determined direction on the ground. In a third aspect, the distortion correcting electronic image sensors are rotated around the optical axis of the camera. In a fourth aspect, cameras collect images in strips and the strips from different cameras overlap, providing large-baseline, small-time difference stereopsis.

Abstract: A device is provided for hanging a frame member against a wall includes a crossbar and first and second vertical arms oriented perpendicular to the crossbar. The crossbar has a longitudinal track and a leveling bubble. The first and second vertical arms each have a linear track that extends along the length, and a marker on the rearward surface thereof. The vertical arms are retained to the crossbar by knuckles having a guide for slideably engaging the linear track of the vertical arms and the first vertical arms are retained perpendicular to the crossbar and are longitudinally moveable perpendicular to the linear edge.

Abstract: Provided is a moving unit that enables a movable body to be smoothly moved along guide tracks for guiding the movable body across joints between a plurality of track rails arranged in series so as to serve as the guide tracks. The moving unit includes: the pair of guide tracks laid in parallel to each other; a plurality of moving blocks being two or more moving blocks assembled to each of the guide tracks and being freely movable along the guide tracks; and the movable body fixed to the moving blocks. The track rails arranged in series serve as the guide tracks, and each have a guide surface formed along a longitudinal direction of each of the track rails. The moving blocks each include contact elements configured to travel on the guide surface while passing across joint clearances each being formed between the track rails arranged in series.

Abstract: A central pivot pendant arm system is provided for running cabling internally within a shoulder casting through a shaft that provides an axis of rotation and cabling access through a side opening in the shaft. The shoulder casting is pivotable about the axis of rotation and partially encloses a portion of the shaft. The shoulder casting has a protrusion for attachment of a pendant arm and facilitates cabling passage inside the shoulder casting, between the shaft side opening and the pendant arm interior.

Abstract: A display fixture includes a fixed component including a product receiving portion and an elongated spine portion, a first adjustable component insertably engaged with the elongated spine portion and including a product receiving portion and an adjustment portion, a second adjustable component insertably engaged with the elongated spine portion and including a product receiving portion and an adjustment portion, a third adjustable component insertably engaged with the elongated spine portion and including a product receiving portion and an adjustment portion. The first adjustable component operates to slidably adjust a distance between the product receiving portion of the fixed component and the product receiving portion of the first adjustable component, while the second adjustable component and the third adjustable component operate to slidably adjust a distance between the product receiving portion of the second adjustable component and the product receiving portion of the third adjustable component.

Abstract: In one example, a device for mounting and adjusting an electronic device is described. The device can include a mounting frame, an elongated shaft connected to the mounting frame, a curved arm for operatively connecting to an electronic device and slidably engaging with the shaft, and a threaded knob configured for threadable engagement with the curved arm.

Abstract: A track and carriage system including a mounting plate, a first track removably secured to the mounting plate and receiving a first carriage movable therein, a second track removably secured to the mounting plate and receiving a second carriage movable therein. The first and second tracks are positioned adjacent and substantially parallel to one another such that the carriage of the first track moves independently of and in parallel with the carriage of the second track.

Abstract: A container for transporting and displaying cut flowers comprising six elements. A material of the apparatus is substantially deformable and dishwasher safe. A base, top and sides are constructed to hold cut flowers and water and the top has at least a first and a second affixing element equidistant from each other on opposite ends of the perimeter. A bottom member suspends below the base. A carrying element has an adjustable functional length with a first and second functional end, a first and second actual end that can extend beyond each functional end, and a first and second attachable elements between the respective first and second actual end and the corresponding nearest functional end to each, the attachable element able to be removably attached at various lengths to the respective first and second affixing element for transport and attachment to a suspending element.

Abstract: A system for supporting and leveling a light fixture having a fixture body supporting one or more light sources, and connectors on the fixture body, and a pair of V-shaped hanger rods, where each hanger rod has an apex area and first and second ends, and the first and second ends are each configured to be coupled to one of the connectors. A pair of suspension rods are each configured to engage an overhead structure. A pair of spring clip brackets each having a slot and an aperture are releasably and adjustably secured along the length of one of the suspension rods, and also have a receptacle with a locking tab that receives and retains the apex area of one of the hanger rods.

Abstract: An apparatus for supporting medical devices, in particular operation theatre lamps, on the ceiling of an operation theatre uses a vertical pillar 8 at which bearing heads 3 are selectively mounted. Cantilevers of different lengths may be secured at one bearing head 3.

Abstract: A device is provided for hanging a frame member against a wall includes a crossbar and first and second vertical arms oriented perpendicular to the crossbar. The crossbar has a longitudinal track and a leveling bubble. The first and second vertical arms each have a linear track that extends along the length, and a marker on the rearward surface thereof. The vertical arms are retained to the crossbar by knuckles having a guide for slideably engaging the linear track of the vertical arms and the first vertical arms are retained perpendicular to the crossbar and are longitudinally moveable perpendicular to the linear edge.

Abstract: A television mount assembly suitable for mounting a television to a wall, especially over fireplaces and other obstacles. The mount assembly secures a television (TV) to a wall via two arms and a spring mechanism thereby allowing it to extend away from the wall while at the same time allowing the television to swivel. It includes a mechanism to straighten the television as it is positioned close to the wall. The spring mechanism is calibrated by means of a calibration screw, spring block, and locking screws. A handle enables a user to grasp the mount assembly for changing the position of the television. A temperature gauge on the handle displays ambient temperature proximate to the television to warn users if the temperature is too high for the television to safely operate. A means of setting a maximum extension prevents the television from extending beyond a point set by the user.

Abstract: A track and carriage system including a mounting plate, a first track removably secured to the mounting plate and receiving a first carriage movable therein, a second track removably secured to the mounting plate and receiving a second carriage movable therein. The first and second tracks are positioned adjacent and substantially parallel to one another such that the carriage of the first track moves independently of and in parallel with the carriage of the second track.

Abstract: A dual method of installing a mounting device to a load-bearing surface includes a mounting device having a back member installed closer to the load-bearing surface than a front member on which an object is mounted. A mounting member is either attached to the back member in a first configuration or the mounting member is attached to the back member in a second configuration. The mounting member is attached to the load-bearing surface such that the load-bearing surface is between the back member and the front member in the first configuration. The back member is between the load-bearing surface and the front member in the second configuration.

Abstract: A suspended flying system having a load suspended by a plurality of flexible support members. The plurality of flexible support members are attached to a first rotational element attached to the load and a second rotational element attached to a support. The system also includes a motor operably connected to the first rotational element provides sufficient motion to the plurality of flexible support members to render the flexible support members visually transparent, the load being movable within a space. A method for suspending a load from visually transparent flexible support members is also disclosed.

Abstract: Disclosed is a mounting bracket assembly for a ventilating fan including a first bracket, a second bracket, and a bracket fixing member, the first bracket is provided with a U-shaped groove and is provided at an end thereof with a first supporting leg folded into an L-shaped; the second bracket is provided with a U-shaped groove and is provided at an end thereof with a second supporting leg folded into an L-shaped, and a root portion of the second supporting leg is provided at two sides thereof with slots; the second bracket is engaged into the U-shaped groove of the first bracket and can be slid in the U-shaped groove of the first bracket to adjust the length of the bracket assembly; the bracket fixing member is provided with a C-shaped groove; the first bracket is engaged and inserted into the C-shaped groove and can be slidable in the C-shaped groove; the bracket fixing member fixes the first bracket and the second bracket combined together to a ventilating fan body by engagement of the C-shaped groove wit

Abstract: An adjustable equipment mount assembly is configured to be adjustably secured within an overhead support module that is configured to be secured to a structure, such as a ceiling of an enclosed room. The overhead support module is configured to deliver air to the structure. The assembly may include an equipment mounting plate configured to connect to equipment, one or more first adjustable support members configured to allow the equipment mounting plate to be adjusted between different positions with respect to the overhead support module in a first direction, and one or more second adjustable support members configured to allow the equipment mounting plate to be adjusted between different positions with respect to the overhead support module in a second direction that differs from the first direction.

Abstract: A portable support platform system and method for assembling the system are provided. The portable support platform system includes a support platform configured to receive theatrical devices and an orientation member attached to the support platform. The orientation member includes an arcuate surface configured to receive a flexible member. The flexible member is fixably attached to the orientation member at one or more locations along the arcuate surface to permit orientation and movement of the support platform when the flexible members are deployed or retracted.

Abstract: An X-Y gantry system is disclosed. The X-Y gantry system includes an X-axis element, a Y-axis element coupled to the X-axis element. An instrument is coupled to the Y-axis element. The Y-axis element includes a slider assembly with a slider and a guide support element coupled to the slider. The guide support element may have a flexible portion. The slider may or may not contact a slider bar in the system.

Abstract: An apparatus for hanging an article from a door. In one aspect, the inventive apparatus can comprise a mounting system that can be used to hang a mirror, piece of art, or other flat article that is positioned within a frame to a door without the need for a screw driver or any other tools.

Abstract: A swivel attachment and/or branch line restraint device with angular versatility and mobility for facilitating connection of installation components to support a pipe or other load relative to a support surface is provided. Advantageously, embodiments of the device provide a plurality of rotational or swivel degrees of freedom, which are substantially independently controllable, for its mating portions, which respectively engage corresponding mating portions of other installation components. The device embodiments can desirably be configured in male-female, male-male or female-female arrangements to enhance device utility and/or versatility, thereby advantageously allowing for use in a myriad of applications and installations, such as construction, utilities and the like, among others, to reliably support loads.

Abstract: An aerial camera system is disclosed comprising: a camera cluster, including a plurality of cameras, each camera orientated in a direction selected from a plurality of different camera directions having a downward component; one or more rotators that rotate the camera cluster about respective one or more axes in response to one or more signals, and a control module that successively provides one or more signals to the one or more rotators to rotate the camera cluster and cause the cameras in the camera cluster to acquire respective aerial images.

Abstract: A system for supporting a display arrangement from an overhead support, comprising: an elongated support rail having an elongated open upper channel for receipt of an overhead support member; an elongated lower channel for receipt of a lower display support member; and an elongated middle channel disposed between the upper channel and the lower channel for aligned, guided and captured receipt of an elongated connector member to permit the connection to an adjacent elongated support rail or track.

Abstract: A pivoting device especially useful in aircraft passenger cabins that can pivot a monitor between stowed and open positions, the pivoting device including a forward/reverse rotatable driving motor. An electromagnetic brake holds the monitor in stowed and opened positions A power unit powers the motor and the electromagnetic brake. A controller controls the pivoting movement of the monitor. The power unit includes a rectifier circuit that transforms AC to a DC, a step-up circuit that steps up the transformed voltage, a voltage regulator that adjusts the transformed voltage to a prescribed DC voltage, and a retraction power retention circuit including a capacitor. When no source voltage is detected while the monitor is in its opened state, the capacitor supplies the power to a voltage regulator of the power circuit, deactivates the electromagnetic brake and reverse rotates the motor to drive the monitor to its stowed position.

Abstract: A moveable support system for a video monitor comprised of a straight or curved overhead mounted track, a support tube with a rotating head to which the monitor is attached, and a wireless remote which controls the position along the track as well as the rotational angle of the monitor. The track provides mechanical support for the monitor as well as a conduit for the retractable wiring and cabling which connects the wall or cabinet mounted base unit to the monitor. This system allows movement to any position along the overhead mounted track as well as variable angular position of the monitor with respect to the vertical axis of the support tube.

Abstract: A sheet metal yoke for supporting a pair of main runners of a suspended ceiling grid in parallel alignment with a relatively narrow spacing, the yoke having an inverted U-shape with a horizontal span and a depending leg adjacent each end of the span, a lower end of each leg having a tab extending towards the other leg, the tab being proportioned to fit in a cross runner slot of a main runner and being capable of vertically supporting the main runner at a desired elevation.

Abstract: A mounting bracket includes an end plate perpendicularly extending from a side plate and having an elongate hole. A pin assembly includes a pin, a protrusion and a fixing member, wherein the pin is connected to the protrusion and contacts the end plate. The protrusion is located in and movable in the elongate hole. The thickness of the protrusion is larger than that of the end plate. The fixing member includes a head and a shank extending from the head. The shank connects the pin and the protrusion. By this arrangement, the fixing member and the pin clamps the protrusion to be movably engaged with the elongate hole. The pin is adjustably moved in the elongate hole by the protrusion in the elongate hole of the end plate.

Abstract: A telescoping assembly for use with a CPU holder including a mounting track with mounting holes for securing the mounting track to the underside of a generally horizontal surface such as a desk; runners disposed in the mounting track; a telescoping track, adapted for insertion into the mounting track and to engage with the runners therein; a pivoting member, adapted for engagement with the telescoping track and to engage with a CPU holder, the pivoting member comprising a track engagement member and a CPU holder engagement member being joined for 360° rotation about a vertical axis therethrough; and wherein the telescoping track is adapted for translation along the mounting track from a retracted position to an extended position, and when the telescoping track is in the extended position a CPU retained in the CPU holder is positioned past the edge of the generally horizontal surface.

Abstract: A fine-adjusting apparatus for an overhead projector has a mounting frame, an assembling device, a pitch-adjusting device, a left-right adjusting device and a connecting mount. The mounting frame is adapted to mount on a wall. The assembling device is detachably connected to the mounting frame and has a sliding mount and a base mount. The sliding mount is slidably mounted in the mounting frame. The base mount is pivotally connected to the sliding mount. The pitch-adjusting device is connected to the assembling device and has a pitching frame, a guiding bar and a pitch-adjusting shaft. The left-right adjusting device is connected to the pitch-adjusting device and has an adjusting frame, a left-right adjusting shaft and a linking element. The connecting mount is pivotally connected to the left-right adjusting device, is used to connect with the overhead projector and has a connecting board, two pivot frames and multiple extending arms.