Abstract: A die body is provided defining a longitudinal channel therethrough including the cross-sectional shape of a metal stud to be cut and an opening is formed through the die body extending normal to the web of the channel and including a first arm portion extending along one longitudinal margin of the channel and a second arm portion extending from the first arm portion to a point spaced slightly inward of the other longitudinal margin of the channel, the first arm portion of the opening including opposite side portions thereof disposed inward and outward of the one longitudinal margin of the channel.

Abstract: A spacer tube design is arranged to receive a snap-on cap which may be of any desired color thereby to match the surrounding structure. The spacer tube can be bent into a rectangular outline shape without the use of separate corner inserts. The snap-on cap may be capable of holding a deisiccant material. The cap may be also designed as to provide thermal and/or sound insulation between the glazing panels and/or to securely hold a decorative grill or the like in place between the glazing panels. The spacer unit may be capable of flexing in such a manner as to accommodate relative movement between the glazing units in response to fluctuations in the forces acting on the glazing panels thereby to reduce the possibility of damage occurring to the glazing unit.

Abstract: A pair of angularly related interconnected steel trim elements having a mitre joint therebetween have a continuous layer of plastic material bonded upon one side of the trim elements. A corner connector reinforcement sheet of plastic material is positioned upon the plastic layer, spans the mitre joint and adjacent portions of the trim elements. A layer of adhesive upon one side of the connector sheet is in surface engagement with the plastic layer providing a rigid connection therebetween. The method of making a window frame trim assembly comprises bonding a layer of plastic material upon one side of a metallic strip, rolling its opposed longitudinal edges into transverse C-shape defining an elongated channel, cutting a series of spaced notches transversly of the channel through one edge and across to the other edge, defining a series of interconnected trim elements and successively bending adjacent trim elements into engagement closing the notches to form a series of spaced mitre joints.

Abstract: A generally L-shaped coupling plate having an arcuate mandrel at the junction of two generally rectangular tongues is united with a notched out channel by inserting the first tongue into slots defined by the web of the channel and opposed ribs spaced apart from and parallel to the web, bending the notched out portion of the channel around the mandrel, and inserting the second tongue of the plate into the slots of the bent portion of the channel as it approaches the plate. Barbs on the edges of the plate dig into the channel to secure the union of the two pieces. The channel may be painted before being bent around the plate so that a predecorated rounded corner runner may be installed at the intersection of two partitions.

Abstract: A bed spring assembly comprising a rectangular frame having a pair of end members and a pair of side members and arcuate corners joining said side members to said end members,said members having top and bottom walls,each bottom wall having a cut out subtending each corner,a filler plate covering the corner cut out and having a leg at the one end extending into the adjacent side member and having another leg at the other end extending into the adjacent end member, and means for connecting said legs to the respective members,said plate having an arcuate portion complementally fitting into the adjacent corner,means for securing spring-covering fabric to the frame comprising upwardly and inwardly angled flanges on the inner edges of the bottom walls of the side and end members,and similarly angled flanges on the inner edges of said legs and intermediate portion of each filler plate.

Abstract: An appliance frame having a score line formed by pressing metal to form a plurality of dimples each having a substantially straight severed edge extending out of the plain of the metal and arranged in a substantially straight line to form the score line, thereby to weaken the metal sufficiently that it may be manually bent to form a substantially right-angle bend at the score line.

Abstract: A curved corner bent from a hollow-profile construction to form a spacer frame of an insulating glazing, where an opening is provided in the inner wall and in the side walls of the hollow-profile construction in the corner zone, so that a free transverse edge on one side of the opening clamps over a free end portion on an opposite side of the opening when the hollow-profile construction is bent at a right angle to form the curved corner, and a process for the production of the corner, in which the opening is a rectangular cut-out into the inner wall and U-shaped cut-outs cut into the side walls, where the side walls are braced during the bending in such a way that the free transverse edge is guided onto the free end portion to provide flat side surfaces on the curved corner after the bending thereof.

Abstract: A spacer frame for insulating glass has corners in which the radii of curvature of the inner wall and the outer wall each are of a larger radius than the side portions of the hollow shaped bar portion. The spacer frame may be manufactured in an apparatus provided for that purpose, having two displaceable bending heads, by first simultaneously bending a hollow shaped bar portion twice through 90.degree., and then further bending it twice through 90.degree. between the corners, wherein, before the operation of bending the corners, the inner wall of the hollow shaped bar portion is curved inwardly and two notches are produced in the outer wall.

Abstract: Metal door frame and the like made of channel iron open from outside without any need of welding or other kind of connections of jambs and upper part, and method of their manufacture. The jambs and header of the frame are made of a single part of a rolled channel iron having a complicated, asymmetrical shape generally in the form of a letter "U". In the area of a corner, the channel iron is provided, on walls which are perpendicular to the inner side of the door frame, with suitable cut-outs shaped as a triangle and a trapezoid for making it possible to bend the channel iron into a right angle corner. The superfluous material in the plane of the channel iron, forming the inner sides of the door frame and in other planes parallel to it, forms, after having bent the channel iron into corner, tongues, which may protrude from the frame for a better fixing of the door frame in the brickwork.

Abstract: A screen or patio door adapted for sliding along a track in a doorway or other opening includes a generally rectangular frame of extruded aluminum channel having four generally L-shaped corners, at least two of the corners positioned along the bottom of the door and adapted to slide along the track. Each corner is formed by a 90.degree. miter cut leaving a web of aluminum material bridging the cut, and thereafter bending the channel about the web to form the corner. The corners all include a corner lock extending through the channel and bridging the miter, with fasteners extending through the channel. The fasteners extend through and expand the corner lock to fill the channel, thereby forming an inside wall bridging the miter cut and unitizing the corner construction.

Abstract: Apparatus for interlocking the ends of first and second channel-shaped wall sections, comprising a substantially perpendicular first tongue integral with and extending inwardly from the end of the first wall section, with a slot at the juncture therebetween. A substantially perpendicular second tongue is integral with and extends inwardly from the second wall section. The second tongue is dimensioned for insertion through the aforesaid slot, and it has a detent arranged to cooperate in mechanical engagement with the first tongue, as long as the second tongue is operatively positioned beneath and in parallel relationship to the first wall section. A third tongue on the first wall section holds the second tongue in its operative position.

Abstract: A one-piece damper frame wherein transverse slots in a channel shaped longitudinal frame member permit the frame sections to be bent to define a frame opening and flanges integral with the channel are unsevered to provide continuous integrity throughout the frame perimeter. Tabs formed in the frame material by extensions of the transverse slots overlap the proximal frame section across the corner and are secured in a manner to rigidly hold the corners in their appropriate angled positions.

Abstract: A foldable structure (2) and a method of manufacturing a foldable structure which, when folded produces a curved edge or corner. The structure comprises two panel members (32,34) having a respective edge region (18,20) which are adjacent and are spaced apart. Each edge region has a shoulder (8,10) and a curved portion (12,14). A flexible elongated bridging piece (22) is located between the shoulders (8,10) and defines a foldable region. A flexible lamina (24) covers a respective face of the panel members (32,34) and the flexible bridging piece (22).

Abstract: In producing compound plates, such as compound glass panes, two individual plates are held in opposed spaced parallel relation with a frame located between them and extending along the edges of the plates so that the frame connects the plates together. In assembling the compound plates, the frame is formed by removing a flat strip from a supply source and conveying it to a bending station. While the strip is moved to the bending station or in the bending station a number of miter cuts are formed spaced apart in the long direction of the strip so that the miter cuts separate the strip into connected subsections. The miter cuts are located to correspond to the intersecting edges of the plates. The strip is bent or folded along lines extending in its long direction into a hollow section. Subsequently, the hollow section is formed into a frame by bending the connected subsections at the miter cuts.

Abstract: The disclosure relates to one piece frames for fire dampers and the like. The frames are formed from elongate sheet metal blanks each of which is folded into a centrally open, generally rectangular form. In one embodiment, ends of the blank are secured together by a central tab on one end which extends through a T-shaped slot formed at the opposite end of the blank. In another embodiment, the blank is secured in its folded form by an angle shaped end bracket and the frame is provided with at least one corner bracket forming a gusset. The blanks have inwardly directed flanges which are formed with V-shaped notches to permit folding of the blank. In one embodiment, the notches each define an angle of less than 90.degree. and portions of the flange on each side of the notch are overlapped when the blank is folded to provide for frictional engagement between the overlapped portions. In another embodiment, the notches each define an angle of 90.degree.

Abstract: A three dimensional corner fixture for a flexible joint or the like is prepared from a continuous belt or strip of flexible flat material. The strip is partially slitted from an edge, and an insert is secured between the opposed edges of the slit to allow the material to substantially conform to the shape of a flanged corner, preferably with a leg or tab extending from the insert and secured at least through the radius at the corner.

Abstract: A tight-fitting corner construction is provided for use between adjacent, integrally connected parts of a common panel. A specially configured, three-sided miter groove is formed between the panel parts, and the panel is folded to close the groove and to form a corner between the panel parts. An overhanging lip is provided on one of the panel parts along one side of the groove. When the panel is folded to form a corner, the lip is brought into overlying engagement with inner surface portions of the other panel part to effect a thorough, tight-fitting closure of the groove. The panel preferably comprises a hollow, elongated plastic member which is used to form the sides and back of a drawer frame. Snap-acting locking devices are carried in hollow portions of the panel adjacent the corner locations to lock the panel in its folded configuration. A drawer front carries connectors which project into hollow portions of the drawer sides.

Abstract: A box section including a rim portion formed from an elongated strip appropriately shaped and interconnected at opposite ends thereof by means of interengaging tab portions adapted to be bent over one another and received within adjacent depressions of the opposite tab member in such a manner that a variety of decorative and functional coverings, including those of a relatively thick nature, may be applied to such box section without interfering with the construction thereof including its desirable visual and strength characteristics.

Abstract: A spacer for a glass sealed unit being characterized by an inner wall having a slit along the median line, both sides of the slit being formed by a fold having their apex adjacent to one another, two lateral walls adjacent the outer wall of the spacer forming a recess relative to the remaining lateral sides of the spacer, an interlock member for connecting two ends of two spacers at right angle, the interlock member has two legs disposed at right angle, each leg has a U-shaped cross-section, each leg penetrating inside each adjacent end of the spacers so that the base of the U-shaped cross-section lies between the lateral walls of the spacer and the free edges of the sides of the U-shaped cross-section lie outside the free edges of the folds.

Abstract: In each arm of a profiled part a notch is made. The notch has two convergent edges forming an angle substantially equal to the angle to be made with the profiled parts. The notch is designed of such a size that the bending can be easily made by applying a compression stress combined with a folding stress in order to reduce at a minimum the extension of lengthening during the folding without reaching the breaking limit of the material constituting the profiled part.

Abstract: There is disclosed a picture frame which is fabricated from a single piece of an extruded metallic member which has an "F" shaped cross section. The member is suitably notched at predetermined intervals and bent at scored lines. The opposite ends of the member serve to form a non-continuous corner and are joined and secured together by means of an "L" shaped bracket which coacts with the material of one of the flanges of said F shaped member to rigidly secure the entire assembly. It will be shown pursuant to this invention that only one bracket need be used since each of the other three corners of the frame are integrally formed from said common extruded metallic member.

Abstract: A storage rack for holding superposed loads of palletized goods for use with a stacker crane or the like. Parallel upright trusses are spaced apart to define storage bays therebetween, and compartments within the bays are provided by rails carried by the trusses. U-shaped members connected to the columns of the trusses constitute parallel rails extending, respectively, into adjacent storage bays. Rectangular tubes may be crush-bent to the desired U-shape and connected by welds and/or brackets or supports to the columns of the trusses.

Abstract: A permanently formed stud-truss includes a wood member having a curved length positioned between two substantially straight lengths. The curved length has a plurality of removed portions on the concave side thereof, at least a portion of the adjacent surfaces of which contact each other. The depth of the removed portions is greater than one-half the thickness of the wood member but at least 1/4 inch less than the total thickness of the wood member. The stud-truss also includes means permanently maintaining at least the open ends of the adjacent surfaces of each of the removed portions in contact. A method of making the stud-truss and of constructing a small modular building utilizing the stud-truss is also disclosed.

Abstract: A corner formation is made in an architectural glazing strip that has an elastomer-encased spring material formed of a resilient wire element in a transverse pattern of zig-zag loops with the strip having an anchorage edge and a glass-engaging edge. The strip is cut inward from the anchorage edge between the pair of wire loops that occur at the corner, and the cut is stopped at the wire extending between the pair of loops. Then the strip is bent 90.degree. at the corner to open a substantially square space between the wire loops. A resilient element is placed in this space and has the transverse cross-sectional shape of the spring material, and an elastomeric material encases the resilient element and is secured to the strip around the corner. The result provides an even and uniform corner having resilient pressure all the way around the corner.