Abstract: Suspended ceiling structure for cleanroom comprising a pressurized plenum, the lower face thereof is defined by filter plates supported by a metallic structure having the shape of an horizontal grid, comprising extrusions (P1, P2, P3) crossing at a right angle, said extrusions (P1, P2, P3) having upper channels associated in such a manner that they form a continuous channel around each mesh of the grid and they form a support for a filter plate (13, 13'), said channels (15, 15') being filled with a material in which dips a peripheral support (14, 14') for said filter plate (13, 13') to assure the sealing between the plenum and the volume beneath the ceiling structure, characterized in that each extrusion (P1, P2, P3) comprises at least one horizontal lateral groove (3), upon its full length and having the shape of a slide (2) having at each end housings (4) provided to cooperate with fixation means (5, 6, 7) of a perpendicular extrusion, said fixation means (5, 6, 7,) cooperating also with said slide (2) faci

Abstract: A connector device for interconnecting frame-work profiles provided with internal hollow channels and at least one T-shaped longitudinal slot in end-to-end and end-to-sideface relations includes a generally parallelepiped shaped connector having a through bore which receives one element in the form of a screw that is adapted to be firmly attached to a first framework profile in end-to-end relation thereto and a second element in the form of a T-connector member for effecting connection with a second framework profile. The T-connector member has a thin element that is adapted to pass through the T-shaped longitudinal slot of the second framework profile in a first position of the T-connector member, and to be broader than the slot in a second position of the T-connector member so that the T-connector member is trapped in a cavity in the interior of the second framework profile behind the slot.

Abstract: A frame assembly for doors, windows and the like includes a fastening element consisting of a longitudinal connecting portion and a transverse clamping portion, a first frame provided with a plurality of locking holes and a second frame provided with two fastening holes. The connecting portion has a side plate extending substantially perpendicular to either lateral side thereof and is provided with a plurality of threaded holes at an upper portion thereof for matching the locking holes. The clamping portion consists of a clamp plate punched and bent from a middle portion of the connecting portion and a grip plate in a relative clamping relationship with the clamp plate; the grip plate being provided with two projecting hook pieces for matching the fastening holes. The connecting portion may be inserted into the first frame so that they may be locked firmly and conveniently by screws.

Abstract: The invention refers to a wiper arm with a fixing part made from asheet metal, comprising a bore for the non-rotatable fixation on a wiper shaft and which is provided at least around the bore with an upper sheet metal section and a bottom sheet metal section being integrally connected and lying approximately in parallel to said upper sheet metal section. In order to provide the fixing part in the area of the bore with a high stability of form, a sheet metal section is supported against the flat side of the other sheet metal section around the bore at a distance from the outline of the fixing part which can be noticed when looked at in direction of the axis of the bore.

Abstract: Pultruded composite members which interfit to form a rigid post and beam, or beam and brace, are adapted for use in heavy construction in such applications as bridges, buildings including high rise structures, ship deck and the like. Two pultruded shapes are used for the entire framework. A first member ordinarily serving as a beam is pultruded as a completely enclosed thick-walled I-beam with an internal channel which is formed with a continuous scalloped or toothed cross-section on both sides. The mating support member has a bifurcated end with outer sides configured to interlock with the sides of the internal channel of the I-beam. Access into the channel is provided by periodic windows milled into the beam at the precise entry points of the insertion member. The bifurcated end of the insertion member compresses adequately to be inserted into the channel of the cross-beam, where it expands such that the external teeth engage the scalloped walls of the I-beam and lock securely into place.

Abstract: A structural connector for connecting together wooden members. The structural connector is provided with at least one protrusion arm having a hole locking mechanism. Also, a method of making a structural joint.

Abstract: A timber beam hanger connects a first member, e.g. a horizontal or inclined beam, to a second member, e.g. a horizontal or inclined beam disposed perpendicularly or obliquely to the first beam, or a vertical post or wall. The beam hanger comprises a generally vertical web, an upper flange extending from an upper edge of the web, a seat extending from a lower edge of the web and a connector. The upper flange and seat are usually rectangular and disposed parallel to each other and normally to the web. The upper flange is secured to an upper face of the first member, and the connector cooperates with the upper flange and is secured to the second member. A joint face of the first member has a generally vertical slit intersecting the upper face and receiving the web therein. The joint face has a generally horizontal slit intersected by the vertical slit at a position remote from the upper face and receiving the seat therein.

Abstract: A composite deck post for use with a wood joist of a wood deck and for attachment thereto with at least one fastener. The composite deck post comprises an elongate, hollow extruded plastic shell which is rectangular in cross-section and has an upper end and a lower end. The shell has a rectangular notch formed therein adjacent the lower end for receiving a wood joist of a deck. An elongate tubular metal stiffening member is positioned within the plastic shell and is rigidly secured thereto generally adjacent the upper end of the plastic shell. The plastic shell and the metal stiffening member each have at least one mounting hole co-aligned with each other for mounting the composite deck post to the wood joist with a fastener.

Abstract: A T-joint comprises a rung having at least one cavity and a lower face. A frame has a first side facing the rung. The frame has a longitudinal groove disposed in the first side and the groove has a floor and a plurality of upper edges, such that there is a gap disposed between the plurality of upper edges and the floor. The frame has at least one T-joint part that extends into the at least one cavity. The at least one T-joint part is fixedly connected to the groove. The lower face of the rung faces the frame and is disposed adjacent to the upper edges of the groove. At least one sealing cushion is disposed in the gap. The at least one sealing cushion is made from an elastic material and is fixedly connected to the frame such that the gap is sealed by the sealing cushion.

Abstract: A concealed fixing device comprises an insert embedded within a first member, an elongate threaded bar connected to the first member and passing through a second member through a concealed hole to a concealed chamber within the second member. A combined nut and washer assembly applied to the threaded bar tightens the first and second members.

Abstract: A furniture fitting for connecting parts of an article of furniture includes a dowel to be inserted into a hole in one furniture part and an expansion member movable relative to the dowel between a relaxed position, enabling the dowel to be inserted into the hole, and an expanded position, enabling the dowel to be locked in the hole. A holding member is mounted with respect to the expansion member for rotatable movement relative to the dowel to actuate the expansion member to move to or from the expanded position thereof upon such rotatable movement relative to the dowel. The holding member is to be connected to another furniture part.

Abstract: An assembly for joining a generally cylindrical member to at least one other member wherein the assembly includes a pair of oppositely disposed C-shaped connectors that when connected together are in one of two selected conditions. When in the first condition the C-shaped connectors are slidable about the surface of the generally cylindrical member and when in the second condition the C-shaped connectors are secured to the generally cylindrical member at a preselected position on the surface thereof. The assembly includes a component receiver which receives the other member. The component receiver is slidably mounted on a selected one of the C-shaped connectors so as to be in one of two conditions. When in the first condition, the component receiver is slidable on the C-shaped connectors; and when in the second condition, the component receiver is secured to the adjacent C-shaped connector.

Abstract: The present invention relates to leg enhancements for barbecue grills (10) and specifically to a leg mounting element (100) for interconnecting each leg (6) to the cooking chamber (8) and a support assembly (200) for interconnecting the legs (6) to one another (6).

Abstract: An assembly for simulating structural beams within a room. The inventive device includes a beam positionable into an abutting relationship with a ceiling of room so as to extend between opposed walls thereof. Mounting assemblies secure ends of the beam to the walls of the room and include at least one adjustment assembly for sizing the beam to the exact width of the room. The assembly may further include a post positionable between the beam and a floor of the room.

Abstract: A combination is disclosed wherein an inverted T-shaped ceiling runner is connected to a decorative element by a connector. The decorative element has parallel grooves into which an upper portion of the connector can be positioned in the grooves to hold the connector relative the decorative element. A lower portion of the connector extends down to the inverted T-shaped ceiling runner and is fastened to the vertical web thereof to position and hold the decorative element in a fixed relationship to the inverted T-shaped ceiling runner.

Abstract: A specialized metal bracket permits the installation of wooden handrails between two upright supporting surfaces, such as posts, walls and the like, so that the bracket is not visible from the sides of the handrail. The bracket is L-shaped and recessed into the handrail on a side surface and bottom surface of the handrail. Two holes in a vertically-extending portion of the bracket are drilled adjacent to a bend in the bracket to permit trimming of a height of the bracket, as necessary. Two holes in the horizontally-extending portion of the bracket are spaced from the bend of the bracket to provide clearance from a post to facilitate use of a screwdriver to secure the handrail to the bracket. Both sets of holes are counter-sunk from opposite surfaces of the bracket so that the screws extending vertically into the handrail will not conflict with the screws extending horizontally into a post.

Abstract: A folding collapsible stand mounting device including a frame tube and a stand tube pivotably connected together by two symmetrical connecting plates, and a sliding lock moved along the frame tube for locking the stand tube in the operative position, wherein the sliding lock has a transverse locating rod and an end cap which are respectively engaged with the connecting plates and the frame tube to hold down the stand tube when the stand tube is turned to the operative position.

Abstract: Synthetic resin structural members are inserted into a hollow joint member to abut each other in the joint member. A bearing-pressure damping member is fitted into each of bolt holes on the members, axes of bolts extend alternately in two mutually perpendicular directions. The structural members and the hollow joint member are secured with bolts and nuts. Due to damping action resulting from elastic deformations of the damping members, a load is substantially evenly distributed over the whole bolts to prevent concentration of the load to some of the bolts. The arrangement of the bolts with their axes extending alternately in two mutually perpendicular directions will shorten the length of the joint member.

Abstract: A device for joining two beams at a right angle with one beam, preferably vertical, abutting to other beam, preferably horizontal. The cap is a single sheet which is cut, punched, and folded to form a saddle for each adjoining beam, a plurality of nail guide holes to attach the device firmly to each beam and a pair of slotted holes to guide a toenail for piercing both beams at their plane of juncture.

Abstract: A method of making and erecting a framed structure, preferably single level, by milling standard pieces of lumber that are joined into a sturdy, rectangular frame is disclosed. Opposed Side Beams having dado cuts at their opposite ends are joined to opposed Face Beams having complementary dado cuts at their opposite ends. Floor joists connect opposed sidebeams and support subflooring or decking, and, to accommodate certain larger dimensional floorplans, Center Beams are built into the frame. The frame can rest on a periphery foundation or be erected over posts.

Abstract: A metal connector includes a main metal member in the form of a tube which may be passed through a hole formed in a wooden member, a stop welded to one end of the main metal member, elongated holes formed in the lateral sides of the main metal member in the vicinity of its other end so as to permit a pin to be passed through it, and a tightening bolt threadedly engaged in the other end of the main metal member so that its distal end abuts against the pin. Alternatively, a metal connector includes a through-hole formed in the lateral side of the main metal member in the vicinity of its one end so as to be passed through by a bolt, and a tightening bolt threadedly engaged in the other end of the main metal member so that the distal end of the bolt is abutted against the pin when the bolt is tightened. Consequently, the wooden members of a construction may be connected easily and tightly to one another, while the mounting of the metal connector may be simplified with a view to improving the operating efficiency.

Abstract: A timber connector (10) is disclosed comprising a pair of spikes (11 and 14) disposed at the ends of a cranked stem portion (12/13). The spikes (11 and 14) may be positioned in vertical planes (17 and 18) extending angularly to one another such that the connector (10) may be used for interconnecting respective face of adjacent timber members (15 and 16) which are perpendicular to one another. The spikes (11 and 14) form acute angles with the portions of the stem (13/13) adjacent thereto and the secondary spike (14) tapers away from the axis of the primary spike (11) towards its outer end (25) whereby the timber members (15 and 16) are drawn together during rotation of the stem portion (12/13) about the driven primary spike (11) as the secondary spike (14) is driven home.

Abstract: A fitting, particularly a fitting for connecting plates, includes a connecting member insertable into a cup-shaped recess. A tightening screw is rotatably mounted in the cup-shaped insert and extends obliquely relative to the direction of insertion of the connecting member into the cup-shaped insert. The tightening screw has a front end which acts on a front inner edge of a recess provided in the connecting member. The tightening screw is mounted with a slight play in the cup-shaped insert. The front edge of the connecting member has an inclined abutting surface for the tightening screw.

Abstract: A tonneau cover assembly includes a frame attached to the sidewalls of a pick-up truck, one or more clamps to secure the frame in place, a flexible cover which spans the bed of the vehicle, one or more cross-bows which support the flexible cover, and a plurality of cross-bow clips. The cross-bow clips are telescopically engageable with the distal ends of the cross-bow, and can effectively lengthen or shorten the cross-bow. The cross-bow clips are engageable with the top rail of the tonneau cover frame. More specifically, the cross-bow clip includes a pair of projections which are engageable with the two longitudinally extending channels of the top rail. The first projection is hollow, and is somewhat resilient. Thus, it may snugly fit and form to the dimensions of the first channel. The second projection is solid, and rests within the second channel. The cross-bow clip of the present invention allows the cross-bows to be easily mounted to or dismounted from the top rail of the tonneau cover frame.

Abstract: A metal fixture is employed for jointing wooden members, such as a pillar, a beam or a joist, in a wooden building or construction. The metal fixture includes a main member having a back surface adapted to be secured to the wooden member, such as a pillar, a pair of lateral extensions projected at right angles to the back surface in parallel with each other and at least one of cogged joint grooves and through-holes formed in each of the lateral extensions, a supporting member for supporting a design bracket, and a fixation unit for fixing the supporting member and the main member to each other. The wooden members may be jointed easily and fixedly to each other, while the jointed portions of the wooden members may be covered up easily with facilitated machining operations for the jointing metal fixture.

Abstract: A fume hood includes a housing with wall panels disposed in side-by-side relation and a top member disposed substantially perpendicularly to the wall panels. Connecting blocks which engage edge portions of adjacent panels connect these adjacent panels together. Clip members defining recesses for receiving edge portions of wall panels or of the top member secure the wall panels to the top member.

Abstract: Attachment assembly for handles include a flexible strip which passes around a tool shaft or the like, and has opposed ends which mate to form a cylindrical male thread. This thread is engaged by a female thread in a hollow handle. Between the hollow handle and the shaft is a saddle through which the strip passes, it is rotatably mounted by a cylindrical tube in a recess in the hollow handle. It has a recessed rim which engages the tool shaft on tightening of the female screw. Another version mounts an angled D handle rotatably on the saddle cylindrical tube, by a concentric outer cylindrical tube. A nut engages the male cylindrical thread, and pushes the saddle against the tool shaft. The strip can accommodate tool shafts over a diameter range varying by a factor of four.

Abstract: A first structural frame member (11) has two tabs (15) projecting from one end and may be secured to a second structural frame member (21) having two slots (25) piercing it intermediate its ends by insertion of the tabs through the respective slots N"Z and subsequent deformation of the tabs to prevent their withdrawal from the slots. Each tab tapers from a tab base (15A) to a tab tip (15B) which is narrower than the tab base, and each slot is defined by two opposed, short, end faces (26) and two opposed, elongate "Z side faces, said side faces comprising opposed center parts (27), each at least as long as the width of the tab tip, and opposed flanking parts (28) on either side of the center parts extending from the center parts to the respective end faces.

Abstract: A partitioning system with vertical posts and horizontal connecting tubes, where panels can be attached to the posts with connecting elements, the posts having a connecting bar which is perpendicular to the plane of the partition with a row of connecting bores, cantilevered arm elements, which extend perpendicular with respect to the partition plane, can be attached to the posts. A simple structure of partitions with a closed visible side is possible with the aid of specially designed connecting elements, without the connecting elements being visible.

Abstract: An edge of a first piece of wood is secured in a groove formed in a second piece by a joining strip of U-section with a base and a pair of sides projecting from outer edges of the base. The strip is adapted to fit over the edge of the first piece and into the groove of the second piece and is formed with inner teeth projecting inward from the sides of the strip so that the teeth poke into the first piece of wood and outer teeth projecting outward from the strip so that the outer teeth poke into the second piece of wood.

Abstract: A support structure includes a support bar and at least one section bar which is mounted to the support bar and includes two inner chambers which define a common transverse axis coincidental with the longitudinal axis of the support bar and which receive fixing screws for allowing attachment of the section bar to the support bar.

Abstract: A coupling apparatus interconnects a first circular tube and a second circular tube which are perpendicular to each other so as to form a T-shaped tube unit. The coupling apparatus includes a first resilient securing member, a second resilient securing member and a bolt. Each of the first and second resilient securing members has a convex side surface, a concave side surface, a central hole and a plurality of radial projections. The first resilient securing member includes an internally threaded circular tubular projection projecting axially from a central portion thereof. The second resilient securing member includes a circular tubular projection projecting axially from a central portion of the convex side surface thereof. The first resilient securing member is first press fitted in an end portion of the first circular tube. The second resilient securing member is then press fitted in the end portion of the first circular tube to abut against the concave side surface of the first resilient securing member.

Abstract: Framing for drywall building construction consists of vertical metal U-shaped studs whose ends are positioned with U-shaped metal top and bottom tracks. The tracks have spaced sets of inward protrusions, preferably dimples, formed from the sidewalls of the tracks. The studs are snapped into the sets of protrusions and held therein.

Abstract: A wall assembly includes a wall frame which is made from a U-shaped support channel in which one end of a wall stud may be releasably engaged by a ratchet engagement formed between the channel and the stud. The ratchet engagement is defined by ratchet teeth provided on the side walls of the channel and splines provided on the sides of the wall stud which splines are shaped to releasably engage the grooves between adjacent teeth. In addition, a door unit is used in the wall assembly which includes a peripheral pocket around the side jambs and top header of the door unit to allow the wallboard to be inserted into this pocket. Fasteners can then be used to secure the wallboard to the flange which defines the peripheral pocket such that the wallboard is connected directly to the door unit, thus obviating the need for side studs secured to the side jambs of the door unit.

Abstract: An anchor bracket assembly for securing support posts to a floor surface and particularly useful for handrail assemblies, there being a plurality of anchor brackets affixed to the base of each post and having angular flanges extending away from the post with fasteners pigtailed through the angular flanges into the floor, and molding or cover strips positioned over the anchor brackets.

Abstract: A header of general U-shaped construction having a web and depending flanges normal to the web and separated by the web, and a stud, one end of which is interfitted between the flanges perpendicular to the web. The improvement comprising vertical slots formed in the flanges through which screws are passed uniting the header to the stud whereby the stud may move vertically with respect to the stud in response to environmental forces but not horizontally.

Abstract: A connection in a wood frame building wherein a one piece sheet metal hanger connector is used to join together a wood supporting member, and one or two wood supported members. The connector is connected to the supporting member by a top flange and the supported members are joined to the connector as well as to the supporting member by fasteners driven through openings in flanges of the connector, through the supporting member, through the back wall of the connector and into the supporting member. The arrangement places the fasteners in double shear resulting in unusually large load holding capability for the size and weight of the sheet metal connector. The connector seat is fully supported at the sides and back resulting in high load holding capacity both downwardly and upwardly with unusual rigidity and resistance to lateral forces.

Abstract: A fitting to connect the front plate of a drawer with a rail member thereof includes a dowel casing which can be fitted into the front plate and a hook member connected to the front end of the rail member to be engaged in the dowel casing. A metallic disk provides rigidity for the dowel casing. The hook member has a flange which abuts flush with the front face of the dowel casing and which has a bevelled portion.

Abstract: An arrangement joins concrete beams and columns for building structures. Adjacent parts of columns and beams to be joined are provided with imbedded joint fittings which can be engaged with each other for joining the beams and the acolumns when erecting the building structure. Each joint unit comprises the following parts: (a) a support casing or box which is imbedded in the end of the beam the box being open and flush with the transverse end surface of the beam, (b) a complementary support casing or box imbedded in the column for each beam, the box being open toward the side surface of the column and running flush therewith, and (c) a separate mountable and removable bridge element positioned in a support box in the column and in a support box in a beam and forming a bridging element between the column and the beam in the joint therebetween.

Abstract: A T-connection between two profiles, particularly a cross-bar profile and a post profile of a facade each having an inner chamber, comprises a U-shaped connector located in the inner chamber of one of the profiles, the connector having an end plate provided with a guiding opening and having two opposite edges and two plateshaped legs extending from the opposite edge of the end plate near inner surfaces of the one profile, and a flange bolt guided in the guiding opening of the connector in a non-rotatable manner and extending into the inner chamber of another one of the profiles through an opening in a wall of the other profile so as to be fixed relative to the latter. The flange pin has a portion extending outwardly beyond the end plate and provided with at least one arresting opening. The connector has a toggle lever-like bridge web extending between the plate-shaped legs and provided with a threaded opening.

Abstract: A method of fastening, at least one tubular element at, at least one portion thereof to an at least one member of predetermined thickness, the method comprising establishing at least one opening through the at least one member, the at least one opening extending through the thickness of the at least one member, providing recesses within the at least one member, the recesses of predetermined configuration and being disposed about the perimeter of the at least one opening through the at least one member, the recesses extending radially away from the at least one opening and across at least a portion of the thickness of the at least one member, inserting the at least one tubular element within the at least one opening; holding the at least one tubular element and the at least one member within a jig; establishing recesses within the jig proximate each abutting edge of each of the tubular elements and the at least one opening through the at least one member; applying a predetermined force upon the ends of the at

Abstract: A frame system of upper and lower wall plates with interconnecting wall studs. The plates and studs are connected by grooves on the flanges of the studs mating with inturned ribs on the wall plates. The studs and wall plates being of roll-formed metal.

Abstract: A mortise and tenon joint including a set of self-locking plates placed in each of two juxtaposed structural members of a beam system for effectively creating, when the beams are positioned together, a strong self-locking joint between the two beams.

Abstract: A motion transmitting remote control assembly (10) of the type for transmitting forces along a curved path by a motion transmitting core element (14) including a conduit (12) supporting the core element (14). The conduit (12) has a female member (20) securely attached thereto. The female member (20) includes a plurality of flexible fingers (24) for disposition about a male member (18) which is secured to a support housing (16). The female member includes a rounded front cam portion (38) for engaging the male member and opening the fingers in response to the male member (18) being inserted into or removed from the female member (20). A locking ring (30) is included to move between an unlocked position and a locked position. When in the locked position, the fingers (24) of the female member (20) can not radially expand and are prevented from being removed from the male member (18).

Abstract: A metal fitting for forming an end connection of a wooden beam, such as a roof beam or purlin, to a supporting structure, which may also be a wooden beam, such as a main beam or truss, characterized by a web having opposite bearing surfaces, one bearing surface engaging a surface of the supporting structure and the other surface engaging the end of the beam. The one surface has an arrangement, such as a supporting flange extending perpendicular thereto, for mounting the fitting on the support structure. To mount the beam, the fitting has at least one leg extending perpendicular from the other bearing surface having a constant thickness and being provided with a groove-like attenuation to separate the leg into a supporting portion and a free end portion, which free end portion has openings for receiving fastening elements.

Abstract: Furniture connectors are provided to connect the front plate of a drawer with the drawer side walls and rail members. A slide member which holds a holding bolt is provided in each furniture connector. A spring engages the slide member to pivot the slide member about an axle eccentrically arranged in a housing of the furniture connector and in a radial plane of the housing which is designed like a dowel casing.

Abstract: A connector plate and tail truss are combined so that the formation of a floor truss of the tail truss type results wherein an extension of the top chord of the vertically spaced parallel chords extends outwardly beyond the end members of the truss so as to support the same on a bearing wall. The connector plate is of a general T-shape having a plurality of teeth struck therefrom with each of the plurality of teeth having a twisted shape with the outer portion of each of the teeth lying at approximately 50 degrees to the inner portion thereof adjacent the plate from which the teeth are struck. The twisted configuration of the teeth is such that any tendency of the truss to move vertically relative to the extended end portions thereof is resisted by the several teeth which tend to move inwardly of the timber of the truss so that the combined truss and connector plate resists sagging of the truss that would otherwise occur.

Abstract: A plate holder adapted to be connected in a mounting hole formed in a mounting plate, in which two holding plates are erected on a base perpendicularly in spaced relation to each other, and outside the holding plates are provided elastic non-return pieces adapted to be elastically retained in the mounting hole of the mounting plate. Such construction permits the plate holder to be used even where there is not much space below a plate to be held, used also as a guide rail and facilitates inspection.

Abstract: A bed spring assembly and a supporting rectangular steel frame structure incorporating leg supports, the frame structure including cross beams which in certain embodiments are prestressed in tension or compression to obtain maximum load support without sagging and wherein the springs of the spring assembly are directly fastened to hooks or eyes formed on the cross beams. The invention also discloses round and square corner frame constructions and an attachment if the spring assembly upholstery to either metal frame by providing a hem with a wire threaded therein in the lower edge portion of the skirt of the fabric and pinning the edge portion about the wire to the metal frame or in another embodiment by providing flanges about the lower edge of the frame to which the fabric is clamped.

Abstract: Improved connection or joint for members of a grid system used, for example, for suspending a suspended ceiling and a process for forming the joint.