Abstract: A table that may be readily assembled or disassembled is formed by a plurality of pairs of legs which are joined to each other by elongated locking strips received in longitudinally extending channels formed in the legs and opening at throat portions into mutually engaging mitered surface portions of the legs. The throat portions of the channels are of a reduced dimension, and the locking strips are provided with resilient deformable tabs received in the channels to prevent separation of the legs of each pair. The leg pairs are interconnected by horizontally extending struts which are fixed to two legs of each adjacent pair of legs. The table top rests on the legs and has recessed depending portions received within the space enclosed by the legs and struts to prevent transverse movement of the table top while at the same time preventing the legs of each pair from moving about their locking strips.

Abstract: Transparent storm sash panes are carefully measured and precut for particular window dimensions. The precut rectangular pane is positioned in a gauging slot of a storm sash fabricating apparatus in which an adjustable stop is moved into opposition with a punch unit engaging opposite edges of the pane to thereby establish the proper length of a storm sash frame side to be punched from an extrusion of aluminum or the like. The punch is operated to form an interlocking end on one frame side and simultaneously to form such end on another frame side. Two pairs of frame sides thus produced in the apparatus are placed over the marginal edges of the precut pane, the frame sides being of channel formation, and are secured rigidly at the four corners of the pane by corner end caps or connectors having recesses to interlock with punched tabs on the opposite ends of the frame members. Accuracy of size, durability and economy of manufacturing for the storm sashes are assured.

Abstract: A mitre joint for picture frames and the like, wherein abutting portions of two members have pockets milled therein that are spaced a predetermined distance inwardly from their abutting surfaces. In addition, channels connect the pockets with the abutting surfaces. A foreshortenable fastener comprising a four sided hollow body, having front, back, top and bottom sides, is positioned in the adjacent channels, with the front and back sides positioned in the pockets. The front and back sides are wider than the top and bottom sides, which extend through the channels, and a screw extends through a hole in the top side into threaded engagement with the bottom side to bow the bottom side inwardly when the screw is tightened. This foreshortens the fastener and pulls the mitre joint together.

Abstract: A clad window wherein a wooden window frame assembly has each of its frame members covered with metal cladding, with each of the cladding members having at its ends beveled edges which join with the beveled edge of another cladding member to form a mitered corner. The beveled edges of each cladding member have a portion of the edge turned back to provide a flange and a cladding retaining clip releaseably engages the flanges of each beveled edge, at each of the mitered corners, to releaseably and sealingly secure the cladding to the window frame assembly. When repair work is needed retaining clips are removed, the window frame may be disassembled, the repair work accomplished, cladding slipped back into position and the retaining clips again attached for releaseable and sealing securement.

Abstract: A method of producing a corner in thermoplastic flexible channel material having a base portion and at least one leg comprises flattening the leg portion outwardly while folding the material with a "U" bend upon itself to provide an overlapped base and leg portion. Ultrasonic energy is applied to the overlapped flattened leg portion for simultaneously sealing and cutting the overlapped leg portion at an oblique angle to the longitudinal axis of the channel material. Upon releasing the channel material, the material is restored to its original shape, but exhibiting a formed corner.

Abstract: A cornerpiece for multiple pane windows comprises an integrally formed sheet metal piece having orthogonally extending members which are received in the adjacent ends of tubular spacer bars separating the panes of glass in a multiple pane insulating window. The tubular spacer bars form a frame which is interposed between the panes of glass, and the cornerpiece is formed so as to be closely received within the ends of the tubular members, thereby joining adjacent tubular members. The cornerpiece is formed so as to block the ends of the spacer bars to prevent a desiccant that is typically placed in the spacer bars from leaking out of the ends of the spacer bars.

Abstract: An improved corner frame structure and method of manufacturing it is provided. The corner is effected by joinder of channelled members by a solid bracelet having legs extending at the desired angle.Each leg is provided with a pair of spaced apart depressions. Into these depressions, tongues are struck down to bind and urge the adjacent frame members together.

Abstract: A cabinet door construction wherein a panel is floatingly received in a seat formed in a generally rectangular framework forming a central opening blocked by the panel. A suitable retainer attaches to a front face of the framework for retaining the panel in the seat provided therefor in such a manner that the panel may expand and contract without cracking as humidity conditions and the like vary. The framework includes a plurality of rails arranged in a pair of substantially parallel sets disposed perpendicularly to one another and rigidly secured together by fasteners comprising a pair of parallel legs connected together by a web and driven into the abutting ends of adjacent rails so as to lie substantially in the plane of the framework.

Abstract: A frame assembly for mounting and displaying a sheet of decorative fabric. The assembly is constituted by a set of four mitered pieces joined together at their corners by reinforcing snap-in elements to form a frame whose dimensions fall somewhat short of the sheet dimensions to an extent equal to the margins of the fabric sheet. Each frame piece is formed by an extruded molding having resilient inlet jaws which lie adjacent to the junction of the outer edge and the back of the molding and communicates with an internal storage channel running the full length of the molding. Also running the full length of the molding on the front face thereof is a band of pressure-sensitive adhesive having a peel-off cover. Formed in the back is a longitudinally-extending keyway.

Abstract: A rectangular glass panel refrigerator door is provided with a mitered frame construction. The door frame has two vertical side frame members and two horizontal cross frame members. Each frame member is generally channel-shaped and has a front wall, an inner sidewall and an outer sidewall which together form a substantially U-shaped channel. The end of each frame member is angled at 45 degrees to form a miter joint with another frame member perpendicular thereto. A right angle corner brace is provided at each miter joint and has one leg lying along the inner wall of the horizontal cross frame member and another leg lying along the inner wall of the vertical frame member. Projecting outwardly from the inner wall of the vertical side frame member is a lug having a threaded aperture therein.

Abstract: The invention provides a structural assembly for use in a building comprising a pair of strip elements which form adjacent horizontal and vertical sides of a frame and a corner piece joining said two strip elements together, said corner piece comprising a hollow body, formations at right angles to each other on said hollow body providing respective spigot-and-socket connections with said two strip elements, said body of said corner piece having a moisture retaining wall arranged so that moisture draining from one of said strip elements into said corner piece, on that side of said moisture retaining wall which includes the spigot-and-socket connection for the strip element which provides said vertical side of said frame, is contained therein by said wall.In the preferred construction, said moisture retaining wall comprises an internal web substantially dividing one part of the interior of said corner piece from another part.

Abstract: A somewhat channel shaped elongated connector element interconnecting an upwardly extending backsplash element with a counter top along the rear edge thereof includes a lower flange abutting the lower surface of such counter top, a web section having a lower portion thereof abutting the rear edge of such counter top, and an upper flange positioned in a groove provided in the rear surface of such backsplash element. The connector element upper flange is not as thick as the groove in which it is positioned except at spaced intervals along the length thereof where protrusions are provided thereon; the thickness of such connector element upper flange added to the depth of such protrusions being greater than the width of such backsplash element groove. The "press-fit" of such protrusion carrying connector element upper flange within such groove strongly connects such backsplash element with such connector element.

Abstract: A corner key for securing channel members to form a frame, such as a gate frame which consists of two substantially identical mating members. Each of the members is in the form of two identical sections joined substantially at right angle to each other. There is at least one transverse groove on the face of each section which will mate with the other member so that when the mating faces of the identical members of the key are placed face to face apertures are provided in the corner key. These apertures are adapted to receive fastening means which tend to wedge the members apart thus creating a tighter fit in the channel member.

Abstract: A quick-change picture frame, which for changing the picture has to be opened only at one corner and wherein miter cut elastic moldings are connected by a loosenable corner connecting piece at one corner and by firmly attached corner pieces at all other corners. Within the molding grooves are provided into which the edges of the corner pieces are fitted. The loosenable corner piece comprises a plate which is pivotably attached to the end section of one of the moldings, which form the openable corner, and has a guiding groove, which cooperates with a guide projection on the second molding of this corner in order to lock the corner piece when the frame is closed.

Abstract: A quick-assembly picture frame is provided with improved means for locking the precut frame members together. The invention is intended for use primarily with picture frames formed from metal in extruded cross sectional shapes. Adjacent ends of frame members which define the corners of the frame are locked together by L-shaped brackets which are received in channels at the rear face of each of the frame members. The L-shaped brackets at each corner are secured to the channels by any suitable means such as screws which bear inwardly toward the bottom of the channels to secure the L-shaped brackets in the channels. The L-shaped brackets and channels are formed in a manner which, when the screws are tightened, will cause adjacent frame members to pivot slightly about their lengths and in a manner which draws the forwardly facing corner regions of the frame sections tightly together.

Abstract: This door omits the usual metal frame for supporting a pane of glass. Hinges are mounted on channel trim strips on the adjacent edges of a pair of the glass panes to provide a two panel folding door. The lower hinge has a spring catch to hold the door closed. The trim strips are secured in assembled relation on the horizontal and vertical edges of the glass by snap fit engagement with four corner connectors within the channels, without screws or welds. On one of the panels two of the corner connectors have pivot posts for mounting the door in a stationary frame and on the other panel two of the corner connectors have guide posts which slide in grooves in said frame. Thus the trim strips and corner connectors themselves form a frame for the glass in each door panel.

Abstract: A connector plate for the panels of a concrete form corner constitutes an elongated rectangular plate having a first portion with holes for bolting to an edge portion of a panel so that a second, locking portion extends beyond the edge of the panel. The locking portion has a notch the outermost land of which is parallel to the edge of the panel. The notch is greater in width than the plate thickness, and the arrangement is such that the notch can interengage with the notch of an identical connector, inverted relative thereto, to hold together the edges of two mutually perpendicular panels to form a corner construction. The connector plate includes apertures for whaler bars which can be placed in position to abut the outermost surfaces of the panels and to prevent distortion during concrete pouring.

Abstract: An angular connection for a frame or counterframe composed of hollow sections of plastic material includes at least one plastic angular element inserted with its two legs fitting firmly in the hollow sections at the point at which they converge. The walls of the sections are welded to the legs of the insert by ultrasonic spot welds. A second plastic insert may be provided for connecting together edges of the sections, the first plastic insert being arranged to connect the main bodies of the sections together. Both inserts are connected to the hollow sections by ultrasonic spot welds. A method of making an angular connection for a frame and counterframe includes the step of welding hollow sections to at least one plastic angular element using ultrasonic welding techniques.

Abstract: A frame has channel members extending along each edge of the frame material with each channel member abutting another member at the corner of the framed material. A locking member is slidable between the frame material and the pairs of abutting channel members at each corner of the frame material to hold the channel members together against the frame material. The channel members may have slots therein and the locking members may have protrusions to extend into the slots when the locking member is inserted between the frame material and the channel members. The frame material includes a transparent sheet for displaying an object therethrough and a rigid backing sheet on the other side of the object, and the channel members have a channel width substantially the same as the combined thickness of the transparent sheet, the object, the rigid backing sheet and the locking member.

Abstract: A trench duct system of the type embedded in concrete floors or the like is provided for use in the distribution of electrical power, service and/or communication cables and wiring throughout a building. The system includes a plurality of trench duct sections which are interconnected to form a predetermined distribution layout. Each section of duct includes a cover plate which is removably supported by a pair of vertically adjustable side rails. The length of the cover plate and the length of each supporting side rail may or may not be the same and will depend upon the particular layout. The exposed surface of the cover plate is flush with the plane of the finished floor. Adjoining side rails, when in angular relation to one another, are interconnected by coupling members or connectors which maintain the continuity and stability of the system.

Abstract: A connector for intersecting structural members which connector has a hollow box-shaped central portion and fins projecting from the outer corners thereof to form with the sides of such central portion opposite aligned channels which receive the end portions of mitred, abutting, intersecting structural members.

Abstract: A picture frame comprised of members to be joined at their 45.degree. mitred ends into angular relation. Fastening means provided for the assembly are longitudinally extending passageways on one side of the frame members of triangular cross sectional construction and a plurality of interlock keys consisting of 2 legs joined at right angles being engaged with the passageways of adjacent frame members at their intersections.

Abstract: Framing members of metal are produced from three tubular elements in parallel adjacent relationship held together by transverse fasteners. Sealing strips are located between the adjacent surfaces of the elements and subjected to pressure by the fasteners. In one form of the invention each of the fasteners comprises two pins, each of which passes through two elements so that the pin ends lie in opposed juxtaposition within a common element of the three and are secured together by collets. Alternatively, welded studs are employed. The members are joined together to form a frame by internal blocks shaped to suit the shape of the joint, e.g. angle or tee, and secured by clamping screws or riveting.

Abstract: Tie bars which fasten abutting members (such as extrusions) and also function to draw the members into very tight engagement at the butt joint. The structure inhibits the members from moving apart and from twisting relative to one another.

Abstract: A quick-assembly picture frame is provided with improved means for locking the precut frame members together. The invention is intended for use primarily with picture frames formed from metal in extruded cross sectional shapes. Adjacent ends of frame members which define the corners of the frame are locked together by L-shaped brackets which are received in channels at the rear face of each of the frame members. The L-shaped brackets at each corner are secured to the channels by any suitable means such as screws which bear inwardly toward the bottom of the channels to secure the L-shaped brackets in the channels. The L-shaped brackets and channels are formed in a manner which, when the screws are tightened, will cause the adjacent frame members to pivot slightly about their lengths and in a manner which draws the forwardly facing corner regions of the frame sections tightly together.

Abstract: A universal frame member for use in the easy assembling of frames for cabinet doors, mirrors, pictures, etc. The frame body has a decorative surface or face. The under side of the frame body has a pair of end walls and a pair of side walls extending therefrom. The end walls have a mitered angle with respect to the side walls. A flange extends from a first end wall having a lug which permits snap locking onto the second end wall of an adjacent frame body member during assembly of the frame. Screw bosses are located adjacent the second end wall to permit permanent fastening together of an assembled frame body member together with a panel member. A plurality of screw receptacles are optionally provided in a pattern for easy attachment of hinge means.