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: A vertically and or horizontally adjustable and reconfigurable dunnage rack capable of accommodating the new dunnage sizes and shapes associated with the annual model year changes that preferably includes, among other elements, a base, a pair of upstanding adjustably spaced apart walls detachably connected to the base and each wall including a dunnage support assembly attached to inner surfaces and a fastening assembly for releasably securing the walls to the base after adjustment.

Abstract: An adjustable support bracket having a unitary or multi-member bracket assembly can be used with a vertical channel (2) and rail (6) construction. Each bracket assembly can be positioned and secured at any location along the rail (6) and can accommodate a varying shelf thickness. More specifically, the multi-member bracket assembly includes a stabilizer member (12) and a support member (20) having similar shaped channel plates which when joined have a similar shape to the channel (2). A spring (30) mounted between the stabilizer and support members (12, 20) is contained between the rails (6). The spring (30) in conjunction with a containing lip (14) and a supporting lip (22) of the stabilizer and support members (12, 20), respectively, adjusts to clamp a shelf (32) therebetween. A securing screw (33) locks the bracket (10) at any shelving location by creating a space between the stabilizer and support members (12, 20) within the vertical channel (2).

Abstract: A group of posts, rails, right and left side L shaped post to rail connectors, base plates, and toeboard holding plates to allow temporary or permanent installation of a safety guard rail system with two or more guard rails that may be used as a guard rail on stairways or on flat surfaces. Installation may be by one man using only tools necessary to fasten base plates to a surface. The same group of parts can be used to form rectangular, square, or odd shaped scaffolds with or without toe board holders.

Abstract: A shelf unit which exhibits a high degree of flexibility with respect to assembling and reconfiguring the shelf unit for any of a wide variety of uses. The shelf unit includes left and right ladder-like vertical leg structures which have cross members that define a plurality of vertically spaced mounting locations upon which an interior shelf is selectively mountable. Vertical uprights of the leg structures being readily connectable to a variety of components so as to permit alteration of the base shelf unit itself.

Abstract: A combination structure is disclosed wherein a stand-alone desk structure coacts with an underdesk monitor support structure for positioning and supporting the monitor support. Optionally a slidable keyboard tray support can be included with this monitor support. The top platform member of the desk structure includes a transparent portion. The monitor support structure includes a monitor support shelf and a pair of side supports which are each equipped with a U-configured unitary frame having a pair of legs and a cross member. A plurality of transversely extending, vertically spaced load bearable wire members extend between each pair of legs. Adjustable connector assemblies connect the shelf member with selected load bearable members of each side support. Optionally but preferably, each side support can also include a cross transverse bar which is optionally configured to support a drawer slide in combination with an associated respective leg member.

Abstract: An adjustable position mechanism is provided for selectively varying the position of a first member relative to a second member. This adjustable position mechanism includes a support, and an elongated arm projecting from the support and having a plurality of locking elements in a linearly spaced array for defining a plurality of increments of position and a guide. An actuator has cooperating locking elements of complementary form to the locking elements of the arm, a moveable element for selectively moving the cooperating locking elements into and out of engagement with the locking elements of the arm, and a cooperating guide engageable with the guide of the arm for guiding reciprocal longitudinal movement of the actuator relative to the arm. A housing is coupled with the first member and with the actuator for operatively coupling the first member to move reciprocally with the actuator relative to the arm.

Abstract: A rack includes a sliding latch member, which operates with one hand and which opens and closes several positions on the rack. The rack holds tubular members such as string trimmers and includes first and second uprights, each of which includes hooks and retaining members for retaining the tubular members on the hooks.

Abstract: A display stand includes multiple support surfaces which can be configured to lie in a single plane to form a table top or in vertically spaced planes to form a multi-tiered display stand. The display stand includes a center section and one or more extensions which substantially surround the center section. The center section is supported by legs which are pivotally attached to the center section. The extensions include locking members disposed along an inner edge thereof for releasably engaging the outer edge of the center section or an adjacent inner extension. When the center section and extensions are locked together, they lie in a common plane to form a table top. When the extensions are disengaged from the center section and each other, the extensions can be lowered so as to rest on the legs in a vertically spaced relationship to one another. The height of the display stand can be adjusted by pivoting the legs inwardly and outwardly relative to the vertical axis of the display stand.

Abstract: An improved bracket construction for the storage and display of cylindrically and dish-shaped products in an orientation in which the top thereof is oriented generally vertically includes a pair of horizontal hanging bar units adapted to mount to the vertical standards utilized in conjunction with conventional gondola displays. The hanging bar units include a hanging bar and attachable brackets, the brackets being positionable along the length of the hanging bar and having hooks for engaging the vertical gondola standards. Vertical uprights are mounted to the hanging bars, and support at least one cradle assembly for support of the products. In a preferred embodiment, the cradle assembly includes a horizontal bar which is mounted to the vertical uprights, and at least one product cradle, extending forwardly therefrom.

Abstract: An assembly for vertically extending a gondola display area which includes a pair of upright extension tubes, each with a single protruding mounting hanger connectable with slotted openings in tubular vertical uprights of the display framework; adjustment and locking brackets fasten to each extension tube, above and below the mounting hanger thereon, for pivotally adjusting and locking the extension tubes in parallel relation to support one or more horizontal cross bars having elongated retention rods for coupling plural detachable merchandise display elements to the crossbars.

Abstract: A rotatable and vertically expandable/contractible merchandise display stand including a base assembly, an intermediate display assembly and a top mounted crown assembly all arranged coaxially about a longitudinally oriented center shaft member. The intermediate display assembly comprises a generally elongated cylindrical hollow shell structure having top and bottom end walls arranged orthogonal to the longitudinal center shaft and a pair of parallel intermediate support members all of which support a pair of overlapping top and bottom half perimeter shell enclosures wherein each perimeter shell enclosure consists of a plurality of vertically oriented, side by side adjacently stacked display panel members. The top end wall is rotatably mounted to the crown assembly and the bottom end wall is rotatably mounted to the base assembly.

Abstract: A rack for stacking articles and maintaining stacked articles under compression for compact storage, includes upper and lower cooperating U-shaped members. The U-shaped members each include a horizontal support and a leg extending vertically from opposite ends of the horizontal support. The vertical legs of at least one of the upper and lower members cooperate with the vertical legs of the other of the upper and lower members for vertical adjustment of the upper member relative to the lower member. A device is provided for locking the upper and lower members from relative movement with each other, subsequent to adjustment of the upper and lower members.

Abstract: A support arrangement for components in shelf systems, particularly for continuous frames in continuous shelf systems. The arrangement includes hanging brackets each of which is provided on the rear side thereof with a group of locking hooks. The arrangement further includes shelf posts with openings for releasably receiving the locking hooks of the hanging brackets. Each hanging bracket has on the rear side thereof near opposite ends of the bracket a support edge each for the components. All locking hooks are constructed as approximately T-shaped double hooks, so that each of the support edges can be placed relative to the shelf posts in an upwardly directed position. The group of double hooks is located on the hanging brackets in such a way that they are asymmetrically offset relative to the two support edges.

Abstract: A rail element for the reception of article supports with a metallic profile strip (20) having a cross section with at least two legs (2, 3) defining a right angle (4), having openings (5) in one of the legs (2) for the reception of hook-formed brackets of article supports. The openings are provided in an aligned manner at a mutual distance in the main direction of extension of the rail element according to a modular dimension which allows a height-adjustable arrangement of the article supports. In the other leg (3) openings (6) are provided as well and arranged at the same height as the openings (5) in the first leg (2). Both facing openings (5, 6) are connected with a clearance (7, 8) forming a continuous recess which extends over the right angle (4).

Abstract: In a truck having a vertically movable goods-receiving portion, a plurality of resilient elements are arranged between an upper beam interconnecting the upper end of a righthand post and the upper end of a lefthand post and lower frames for mounting the vertically movable portion. The lower ends of all the resilient elements are fixed to the lower frames. The upper ends of some of the resilient elements are fixed to the upper beam, and the upper ends of the remaining resilient elements are engageably and disengageably held.

Abstract: An upright shelf unit with cantilevered shelves for mounting to the carriage of a mobile storage system. The shelf unit is assembled from a pair of end uprights mounted to the carriage and spaced apart from each other, and at least one interior upright mounted to the carriage between the end uprights, to form pairs of adjacent uprights. Each of the uprights has slots formed therein to accommodate a plurality of shelves. Each shelf has hooks at each end for engaging with the slots of an upright at each end. The interior upright is constructed of a pair of channels facing together. Welded between the two channels is a trapezoidal gusset and above that a rectangular reinforcing member, both having the same thickness. The top end of the gusset and the bottom end of the reinforcing member butt together about halfway up the upright. The width of the reinforcing member and the top end of the gusset are approximately the width of the channels, the thickness being the same.

Abstract: A mounting bracket for use to install a shelving accessory such as a drawer, a roll frame or a flipper door, into an office shelving unit comprising two opposite pairs of posts forming together a supporting frame structure. The bracket comprises an elongated plate provided at both ends with two U-shaped end portions. One of these end portions is provided with holes, whereas the other end portion is provided with slots which extend over part of the outer wall and part of the bottom wall of the U-shape. These U-shaped portions and the presence of slots in one of them make it possible to install the mounting bracket in a retrofit manner between one of the sets of posts in which bolts are previously inserted at a required height.

Abstract: A display panel assembly having a regular series of undercut slots lined with identical channel inserts that improve the appearance and strength of the panel in the slot areas. The channel insert is capable of being installed in a slot from the face of the panel with a resilient snap fit. This assembly procedure allows the panel to be secured with fasteners in the slots and the fasteners to be concealed by the inserts. Additionally, the inserts can be removed from the slots to allow the fasteners to be exposed and removed for demounting of the panel.

Abstract: An improved adjustable assembly for supporting a monitor or the like under a transparent window portion of a desk top member or like structure. The assembly incorporates a shelf member which is supported at each lateral end thereof by a side support. The shelf member is preferably so supported by a locking block arrangement for each of a total of four supporting shaft members that outwardly extend from the shelf member. The position of the shelf member in relation to the side support is adjustable for height and tilting purposes. The shelf member and the side supports are formed of wire.

Abstract: A heavy-duty, non-conductive support system for one or more electrical conduits and the like comprises a substantially uprightly positionable support structure and at least one bracket removably interlockable with the support structure. Both elements of the support system are preferably composed of a polymerized, non-conductive material. The bracket includes a conduit receiving portion and an interlocking portion. The interlocking portion includes two spaced apart fingers disposed in a side by side relationship. The support structure includes a central rib having two sides, each of the sides having finger-receiving slots defined therein.

Abstract: Device for storing dish-type containers such as plates, dishes or serving trays containing a product, with a vertical column which has a base support at the bottom side, the column being triangular or rectangular in cross-section and provided at each side with supporting elements placed at equal intervals above one another. Each supporting element comprises two pin-shaped projections lying in line with each other in the horizontal direction, and a third pin-shaped projection which is longer than the other two projections and lies cenrally between the other two projections at a certain distance from the line connecting the other two projections to each other. The distance from the bottom projection to the connecting line between the two upper projections is adjustable. The base support for the column comprises a flat bottom plate provided with wheels, which plate is provided with one or more fixing elements for detachable accommodation of the column.

Abstract: A work space management system for dividing a space into separate work areas comprising a wall system having a rigid framework formed of rigid rectangular frames rigidly joined together at the edges thereof to form at least one work area, wire management elements secured to the frames for communication and power wiring and a plurality of selectively relocatable modular tiles removably hanging on the frames. Some of the wire management elements are secured to the bottom or baseline of the frames and some of the wire management elements are removably secured to a waistline or midportion of at least some of the frames. The frames can extend to a waist height, a seated height, to a standing or full floor to ceiling height in a modular stepped fashion. Decorative and functional modular tiles are sized to fit on the frames to substantially cover the frames, and are independently and removably mounted thereto. The tiles are of equal height and of variable modular width to cover the frames.

Abstract: A modular display system is disclosed which exhibits wall elements having vertical interior profiles arranged in the lateral corner regions. The vertical profiles are connectable among themselves by horizontally oriented profiles, and the face side of which exhibits a covering. In order to render such a system particularlly versatile for demounting and use, it is provided according to the invention that the vertical profiles exhibit, in addition to a first contact surface oriented at right angles to the extension of the wall element for the horizontal profiles, a second contact surface oriented in the direction of extension of the wall element for accommodating connection of identical profiles oriented transversely to the latter. Exterior formally rigid covering parts are attachable to the profiles oriented in the direction of extension of the wall element. The vertical profiles exhibit outwards adjacently to the second contact surface a housing channel oriented in the direction of extension of the profile.

Abstract: A cantilever racking system comprises vertical pillars formed of two metal sections of steel strip rolled to a cross-section comprising a central web portion bounded by two channel portions. The web portions are secured in facing relationship so that the juxtaposed channel portions form T-shaped slots having inturned marginal edges. Cantilever arms may be clamped in place against the end surfaces defined by channel portions for example by bolts engaging captive nuts engaging with the inturned edges of the metal strips.

Abstract: A universal safety net system for a pallet rack employs extension members which are variably adjustable for extending the effective height of the pallet rack support posts. Offset members which include a series of openings for implementing a pre-established offset spacing from the pallet rack are also employed. Adjustable cross brace assemblies are employed to reinforce the offset members and the vertical extender members. Cables are suspended between the offset members and/or extension members to provide a cable framework for supporting the safety net.

Abstract: A pair of vertical telescoping members are progressively lockable into any relative position to vary the overall length thereof by special locking hardware mounted on the inner member where it is not visible. The hardware includes a locking member movable in part by inertial forces between a released or unlocking position and a locking position where it forms a one way slip clutch with the inner surface of the outer member which permits the inner member to be raised which then preferably shifts the locking member into a release position. The inner member is moved further up or down to its desired position. Whenever the inner member is released, it is preferred that gravity will cause the inner member to move suddenly downwardly a small distance quickly to cause the locking portion of this member to move to its locking position.

Abstract: A safety lock for securing the end of a horizontal beam to a vertical post in a structural frame for wide span shelving. A tab on the end of the beam forces the side of an open box-shape post with slots in the side to yield during assembly of the beam to the post. When the tab enters a slot on the post side, the side springs back, locking the tab in the slot to prevent the dislodgment of the beam from the post.

Abstract: A library shelf assembly that has been designed to meet seismic code requirements for libraries in the state of California. The novel library shelf assembly has a tubular base support having a pair of right angularly shaped gussets welded to its top surface. The gussets have vertical edges that are spaced from each other a distance equal to the width of the post assembly that is received therebetween. A plurality of pairs of hat-shaped straps have their opposite ends bolted together thereby capturing the post assembly between the respective gussets. Anchor plates are welded on the opposite ends of the tubular base support for securing the base supports to a concrete or other type of floor structure. Conventional shelf brackets have their fingers detachably received in vertically oriented rows of spaced slots in the respective post assemblies. Standard shelves are connected between the respective shelf brackets.

Abstract: A furniture display cart is provided which allows vertical placement of furniture and display items to maximize warehouse or showroom capacity. The utilization of carts having vertical adjustable frames for three or more furniture items transforms a relatively small floor space into a much effectively larger space thus utilizing the area to its maximum potential. The cart is movable and can be nestled for storage purposes when not in use.

Abstract: The retailing display assembly is of the upright channel and slidably positionable and releasably anchorable type. The upright channel has an upright rear-wall provided with two columnar arrays of rearwardly struck lanced openings therethrough. The bracket includes a conventional horizontal hanger bar extending rigidly forwardly from an upright web member. The web member is provided with a pair of forwardly extending wings abuttable against the channel member front-walls and is further provided with a pair of downwardly and rearwardly extending tabs that are releasably anchorably protrudable through selectable co-elevational openings of the channel rear-wall.

Abstract: An adjustable clothes drying unit including a ceiling mounted support receiving a vertically elongated post slidably therethrough. The post is provided with adjustable pins for engagement with the support in both selectively locking the post in a vertically adjusted position and defining the lower limit of movement of the post. The lower end of the post carries a rotatably mounted drying rack.

Abstract: A work space management system for dividing a space into separate work areas comprising a wall system having a rigid framework formed of rigid rectangular frames rigidly joined together at the edges thereof to form at least one work area, wire management elements secured to the frames for communication and power wiring and a plurality of selectively relocatable modular tiles removably hanging on the frames. Some of the wire management elements are secured to the bottom or baseline of the frames and some of the wire management elements are removably secured to a waistline or midportion of at least some of the frames. The frames can extend to a waist height, a seated height, to a standing or full floor to ceiling height in a modular stepped fashion. Decorative and functional modular tiles are sized to fit on the frames to substantially cover the frames, and are independently and removably mounted thereto. The tiles are of equal height and of variable modular width to cover the frames.

Abstract: A shelf mounting system (100) is provided for releasably coupling a display shelf (10) to a substantially vertical planar surface (44) of a vertical support (40). The shelf mounting system (100) includes a bracket member (30) having a substantially vertically directed slot (38) at a first end (37). The bracket member (30) is adapted for coupling to a slotted standard (40) by a pair of hook shaped projections (32and 34) on a second end (39). Shelf mounting system (100) further includes an adaptor assembly (20) wherein an adaptor (22) is fixedly coupled on a first end (21) to a display shelf (10) and releasably coupled to the bracket member (30). The adaptor (20) further includes a pin (28) fixedly coupled within a pair of aligned poles (25 and 27) which engages the slot (38) of mounting bracket (30).

Abstract: An apparatus for holding athletic equipment having a stanchion member with a pair of outside standards and an intermediate standard to form a pair of longitudinal openings. A bifurcated member is provided having a pair of brackets. The pair of brackets slidably lodge in the pair of longitudinal openings such that the bifurcated member slidably engages the stanchion member. A support is secured to the stanchion member for supporting and retaining athletic equipment off of the ground.

Abstract: The extension arms (3) attached to the clothes display stand so as to be vertically adjustable are inclined obliquely downwards at an angle .alpha. of approximately 105.degree. relative to their supporting arrangements (1, 2). They are provided, on their top side, with V-shaped grooves (6), in which clothes-hangers can be suspended in a horizontally and vertically staggered arrangement.

Abstract: A hanging compartment support system has a hanger frame including a pair of parallel hanger support rails connected at their ends to a pair of parallel support beams having pin means extending outwardly at opposite ends to be removably positioned in keyhole openings on vertical columns of a main support frame; a second hanger frame is identical to the first hanger frame except for the provision of cantilever support flanges extending from each end of its support beams for resting support on one end of one of the lower flanges of shelf support beams mounted on the main support frame.

Abstract: A system for securing a member, such as a shelf, to a vertical support column and holding the member in a desired position on the column includes a rotary sleeve system whose resistance to downward motion is directly proportional to the downward force applied. A conical frustum shaped collar having an integral pin extending inwardly from its inside surface rests on top of a split conical frustum shaped sleeve having configurations in the split to receive the pin in one of two positions, an unlocked position and a locked position. A horizontal portion of the slit may be provided for restricting downward motion of the collar with respect to the sleeve to maintain the split in an open configuration, allowing free movement of the rotary sleeve system up or down the vertical column.

Abstract: A fisherman's boat chair is provided with a tubular support for retaining an umbrella positionable over the chair. The height of the umbrella is adjustable by the selective positioning of a pin through one of a plurality of available through-extending apertures in the support, and the shank of the umbrella is supported by the pin. Velcro strips are used to prevent umbrella rotation and withdrawal from the support after it has been placed in position. The modified chair may also include a quickly removable and attachable beverage holder.

Abstract: A device in a plane supported between columns by means of hooks cooperating with the columns in a locking position for adjusting and locking the plane in different positions along the columns. In known devices of this type shifting of the plane from one position to another is troublesome and time-consuming and, further, no change of the distance between the columns is permitted. In order to make this possible the hooks (2) are connected to the plane (5) by means of links (3) articulatedly connected with the plane and pivotally connected with each their link (3) in a hinge (8), said links being pivotable, one before the other, to withdraw the respective hook (2) from locking engagement with the column (1), by which displacement of the plane can take place in one direction as well as the other, a support means (8) being associated with each hook (2) and serving in locking position as a support for the hook against the respective column (1).

Abstract: A modular utility cart includes four corner posts, at least one intermediate shelf and a top shelf. The cart incorporates improved structures for securing the intermediate and top shelves to the posts. Specifically, each intermediate shelf is formed with four open collars each for embracing one post. Each collar has a cross-section substantially congruent to the cross-section of the associated post, and has an upper right tubular portion embracing the post, a lower tubular portion having a downwardly outwardly inclined inner surface, and a transition portion between the upper and lower portions. The top shelf, which is mountable in the region of the tops of the posts, is formed with four blind tubular collars, each having a downwardly outwardly inclined inner surface and an inwardly projecting retaining flange at the bottom edge of the surface.

Abstract: A guide height adjuster comprises a block consisting of a plurality of steps of different heights integrally joined together and having a slot formed to allow the passage of a screw across all the steps, a guide holder having a through hole for the insertion of the screw, and a guide to formed as to cover substantially a channel through which components being handled pass, the guide being secured to, and supported by, the guide holder. The guide holder rests on one of the steps and is fastened to the block by the screw so that the guide can be held above the channel. The height of the guide above the channel can be changed by loosening the screw and moving the block with respect to the screw, thereby shifting the guide holder to another block step of a desired height.

Abstract: A support for patient monitoring equipment is provided by a vertical column suspended from a ceiling by a carriage assembly mounted for transverse movement on roller assemblies along a pair of parallel ceiling-mounted tracks. The column is stabilized by the roller assemblies which include rollers bearing on the track flanges as well as rollers disposed beneath the tracks effectively preventing rocking movement of the column. In the preferred embodiment, a rotatable sleeve is disposed on the vertical column for mounting of an infusion pump and permits rotation of the pump to any desired facing position. A telescoping tube within the column is selectively positionable between upper and lower positions and carries IV bottle mounting arms on its upper end. The arms may be lowered for attachment and removal of the bottles and raised and locked at an elevated operating position.

Abstract: A fabricated knock-down merchandise display fixture which includes telescopic, extendible and retractable standard sections for increasing and decreasing the height of the fixture, and including a two piece gravity actuated latch unit mounted on the standards for holding the extendible standard section in selected position. The latch unit is automatically deactivated to permit ready extension of the extendible standard section by merely lifting up on the extendible section to increase the height of the fixture standard and upon release of the extendible section from upward movement, the latch unit is automatically reactivated to hold the extendible section of the standard in its newly extended position. Abutment structure is provided on the standards for limiting the telescopic movement thereof and for guiding the lengthwise movement of the extendible section.

Abstract: The extension column (3) which is telescopically adjustable inside a vertical tube (2) and is optionally rotatable relative to the vertical tube (2) is supported on the latter by a radial and axial pivot bearing arrangement (11, 14) and a height-fixing device comprising a housing (16) and a coupling element (15) preferably in the form of a slide (15) which is supported on a bearing ring (14) which in turn sits on the bearing surface (13) of a support flange (11) supported by the vertical tube (2). The height-fixing slide (15) is mounted in a slide housing (16), which surrounds the bearing ring (14) and the support flange (11), and is against the restoring force of a return spring (27) transferable from a coupled position on the extension column (3) into a release position in which the extension column (3) is freely movable vertically.

Abstract: A shelving unit employing a corner structure formed by two cooperative clamping members having a wedge relationship therebetween, one of the members being fixedly or removably attached to the shelf and the other being disposed so as to removably surround a support port.

Abstract: A joint between a vertically oriented hollow section column (1) and a horizontal load-carrying beam (3) in a two-story building structure such as an exhibition stand, which can be rapidly erected and dismantled, includes a straight core (2) fitted into the upper end of the column (1). The quadratic hollow section core (2) has a projecting bolt head (21) at the middle of either side surface. Each side wall of the generally quadratic hollow section column (1) has a central, axial slot (12) on its inside. On its underside the beam carries a dependent guide body, the width of which corresponds to the width of the internal column slot and is guided by this slot. The short end of the beam (3) has a vertically directed Tee slot (32,36) extending upwardly from the central area of the beam for accommodating the head and a portion of the shank of the screw on the core (2).

Abstract: A display stand having a column extending upwardly from a base wherein vertically spaced holders horizontally support elongate products on the column. Wing panels mounted in spaced relation to opposed sides of the column enhance the appearance of the display stand. A header extends between upper portions of the wing panels and carries advertising for the displayed products.

Abstract: A rack for holding dental impression trays includes a rectangular block having apertures therein to receive the handles or tubes extending from the trays and to cantilever the trays from the rack. A paired arrangement of apertures can accommodate a tray having both a handle and tubes. A base supporting the rack upright has wells therein for holding water which, together with a dome enclosing the rack, provide a moist atmosphere for the impression material, where needed. The rack can be free-standing or wall-mounted. One embodiment of the rack adapted for wall-mounting can be inexpensively manufactured of plastic by extrusion.

Abstract: A display rack in which a plurality of shelves are mounted at desired locations along vertical corner posts by wedge lock elements. Each wedge lock element comprises a two-piece, wedge-shaped insert having outwardly extending projections which are adapted to releasably mount within dimples or detents vertically spaced along the corner posts. The shelves are formed with a sleeve at each corner adapted to fit over the corner posts and into engagement with the inserts. The inserts become wedged between the corner posts and sleeves to prevent downward vertical motion of the shelves relative to the corner posts while permitting easy removal of the shelves by lifting them upwardly from the inserts for disassembly or movement to a new position along the corner posts.