Abstract: A one-piece rollformed sheet metal structural shape for use in building construction, the shape being a generally triangular closed shape having mounting flanges extending outwardly at the bottom of the triangular shape and stiffening flanges extending outwardly from the opposite end of the shape, the stiffening flanges having a projection extending from the outer extremity of at least one of the stiffening flange(s) for increased stiffness. The stiffening projections may turn over or turn under or overlap the stiffening flanges for increased stiffness, prevention of moisture entering the interior of the shape, and securement of the stiffening flanges to each other providing greater strength to the shape.

Abstract: There is disclosed a device for attachment to a free margin of flexible webbing material, as for example, a map, wherein the device comprises an elongated mounting strip to which the free margin of flexible webbing material may be affixed and a rigid elongated substantially hollow holder element having an open end, an outer wall, and a longitudinal slot within the outer wall having a width approximating the thickness of the webbing material. The outer wall is continuous in cross-section circumferentially from one edge of the slot to the other edge of the slot. The holder element further includes elongated rib means within the holder element extending substantially the entire length thereof. The rib means defines an aperture communicating with the slot and is shaped to accommodate the mounting strip lengthwise through the open end with the webbing material extending through the slot.

Abstract: Generally rectangular wood shake covering elements laid up in overlapping courses are spaced apart transversely of their lengths by sawn wood shingle filler elements. Preferably the major portion of the overlapped portion of each course is formed by the tips of the sawn shingle filler elements, whereas the major portion of the exposed portion of each course is formed by the wood shake covering elements. One of such elements can be notched providing a transversely extending shoulder dividing such element into tip and butt portions of unequal width. In application, the shoulder tightly abuts the adjacent element. The covering and filler elements can be used to construct a roofing panel which includes a sawn shingle underlayer beneath each course and waterproof paper which underlies at least the major portion of the shingle underlayer but which is secured to the roofing panel by having one end portion interposed between the underlayer and the covering or filler element at one end of the panel.

Abstract: Apparatus for opening and closing a flexible screen in a greenhouse or the like includes a winding rod mounted for rotation about a fixed axis and to which an end edge of an elongated flexible screen is fixed, first driving apparatus for constantly applying a torque to the winding rod tending to rotate the same such that the flexible screen would be wound thereon, and traction apparatus including elongated flexible members, each of which has its two ends secured to a rotatably mounted driving shaft with respective end portions thereof oppositely coiled on the driving shaft and having two portions guided along a predetermined path of travel with one of the portions being operatively connected to the other end edge of the flexible screen, and second driving apparatus for selectively rotating the driving shaft in a normal or reverse direction.

Abstract: A drapery support system includes a conventional rod adapted to slidably support a plurality of carriers. Each carrier has an upper section that engages the rod and a downwardly depending section taking the form of a U-shaped plate with the outer section of its bight secured to the upper section so that the two plate-like arms project downwardly. The arms extend parallel to one another and normally to the axis of the rod and are spaced along the axis of the rod. Holes formed through the two arms act as female sections of a snap fastener to receive a pair of male snap fasteners secured at spaced points along a tape joined to the upper edge of the drape. The spacing between a pair of male snap fasteners on the tape exceeds the distance between the two arms of the carrier so that the drape section between the fasteners extend freely in a drape-like roll.

Abstract: Disclosed is a modular roof skylight system which includes channel shaped roof and ceiling panel assemblies locked together with a skylight panel assembly therebetween. The skylight panel assembly includes roof and ceiling light transmitting sections which may be installed in place of and between modular roof panels. The inner ceiling skylight panel is securely mounted to the adjacent ceiling panels by a pair of flexible mounting clips complementally formed relative to elongated ceiling support strips secured to the adjacent ceiling panels. The support strips are formed with a plurality of serrations along one inner face. Each mounting clip is likewise formed with a plurality of mating ridges. A first of the mounting strips is secured on one side of the skylight panel opening with the serrations exposed for mating with a mounting clip. A second of the mounting strips is secured on an opposite side of the skylight opening with the serrations secured against the adjacent ceiling panel.

Abstract: A strip-type door having a plurality of individual strips arranged in overlapped relationship one to another comprises a series of swingable supports on which the individual strips are vertically suspended when the latter take a vertical position. A mounting element connected to a lintel over the door opening has a mounting portion, a supporting bar and an arcuate wall defining an arcuate channel. Each of the supports is formed with a curved portion insertable into the channel in the mounting element to form with this wall a hinge about which the supports carrying the individual strips can swing relative to the mounting element between a plurality of positions. The curved end portion may be inserted into said channel in only one of these positions so that the inadvertent falling or removal of the supports out of the channel when the strips are in their working swingable positions is prevented.

Abstract: A sliding folding door of double-walled construction with the sliding door including a plurality of leaves interconnected by shaped connecting rails. The doors are adapted to be foldable or pivotable about vertically extending pivots disposed inside the connecting rails. Each of the connecting rails includes two cylindrical walls that have a quarter-circle cross section and extend along the connecting rail, with center points of their radius of curvature being arranged in the pivots. Each cylindrical wall has opposed thereto a crosspiece that extends along a long side of the respective door leaves.

Abstract: A closure includes a plurality of vertical panels suspended from an overhead support and successively joined to one another by interlocking, alternate outer and inner pivot elements attached to the panel lateral edges. When the closure is collapsed the panels are folded about the pivot elements into a stacked, parallel diposition. Improved articulation between the panels is achieved by means of unique outer and inner pivot element components including respectively, a curved groove and a curved arm, both describing an arc of approximately 270.degree.. Female elements on the base of each pivot element cooperate with mating male elements joined to each panel lateral edge to allow ready assembly therebetween, with the panels themselves comprising either metal and/or a plastic composition.

Abstract: A vertical blind having a blind head with a tilt rod, a cap mounted to one end of the head and including a bushing, a sleeve connected to the tilt rod and rotatably supported in the bushing, and a worm gear located within the cap and connected to the sleeve, and a worm on a shaft accessible from outside the cap and operatively connected to the worm gear for rotating the same by means of a wand. Alternatively, a sprocket wheel is located within the cap and connected to the sleeve, and a bead chain accessible from the outside passes over the sprocket wheel for rotating the same.

Abstract: A folding door having panels pivoted about vertical axes, top and bottom pivot assemblies, the bottom assembly comprising a bracket mountable beneath the door. The bracket defines a track along which a pivot block is guided. A sleeve is mounted in a vertical opening of the door and a pivot pin threaded into the sleeve, which pin is vertically adjustable relative to the door. The block has a vertical opening therein and the pivot pin has a lower end thereof extending therethrough. The pin and block have vertical teeth which are engaged when the pin is moved relatively downward onto said block and are disengaged when the pin is moved relatively upwardly. The pivot block and the bracket have vertically engageable teeth such that when the block is moved downwardly onto the bracket, the teeth are engaged, and when moved upwardly, the teeth are disengaged.

Abstract: An environmental curtain constructed of flexible, transparent plastic strips suspended in an opening to function as a thermal barrier. The plastic strips are arranged in a partially overlapping relationship. Each strip is defined with one end having each corner cut out to an extent for producing a central solid portion. The solid central portion of the strip may be provided with a row of spaced apertures arranged adjacent one end of the strip. An inner row of spaced apertures are arranged in vertical alignment with the outer row to permit a temporary suspension loop for the strip to be defined when the inner and outer rows of apertures are aligned in overlying relationship and secured together. The strips may include side flaps adjacent the central loop that extends below the strip suspension means and allow the relative position of the adjacent strips to be changed while still suspended by the suspension means.

Abstract: A valance comprising a support for at least one elongated strip on the front side of an upwardly opening, channel-shaped headrail for a venetian blind. The support includes a U-shaped clip having downwardly extending front and rear arms and a generally horizontal flange projecting forwardly and upwardly from the front arm. A relatively flat strip holder has a horizontal slot in the rear side thereof, the flange on the clip being receivable into and releasably held within the slot. The strip holder has two or more hook elements extending from the front side thereof which engage the lateral edges of at least one elongated strip to support the strip. Cooperating means on the clip and holder oppose relative movement thereof in the horizontal direction parallel with the headrail.

Abstract: An adjustable handlebar system includes handlebar means to provide handle grips for a vehicle that are adapted for movement with respect to the vehicle. At least a pair of unidirectional clutch means control movement of the handlebar means. Each clutch means is engaged with the handlebar means and is connected to a part of the vehicle. The handlebar means and clutch means are interconnected to prevent movement in two opposite directions and to hold the handle grips immovable in the absence of operation of the clutches. One clutch means is operated to permit infinitely variable movement of the handle grips in one direction and the other clutch means is operated to permit infinitely variable movement of the handlebar means in the other direction.

Abstract: A folding closure having an emergency folding door therein which has a height less than the height of the closure. A folding top closure section is provided in the closure above the folding door. Means detachably connect the folding door and the folding top closure section together. The arrangement allows the folding top closure section to guide the folding door about corners when folding or unfolding the closure.

Abstract: Energy losses from market refrigerated display cases, which are normally open, can be dramatically reduced by the use of the shield assembly of the present invention. The shield assembly comprises of plurality of transparent and resilient panels, each panel being adjacent to at least one another and having an overlapping relationship with the adjacent panel. The panels are mounted in a rigid frame and allow access therethrough by stretching and bending one or more of the panels along the overlap. The plurality of panels are fitted in a specifically configured mounting means such that they are held in place across an aperture of the display case. Retaining means are disposed adjacent the other end of the panels to keep the shield assembly in proper position.

Abstract: A slat from which door or window shutter may be composed is made of two identically profiled strips, defining between them a concavity.

Abstract: End structure for an elongated traverse rod having side-by-side parallel channels, one thereof opening downwardly and the other opening sidewardly. An elongated flexible element in one of the channels effects movement of a master carrier along the rod. The end structure has a pulley housing which is securable to the traverse rod by guide structure and has plural, downwardly opening compartments. A pair of pulleys are rotatably mounted on a first shaft and respectively within two of said compartments, such pulleys being engaged by the elongated flexible element. A second shaft is rotatably supported on the pulley housing and extends parallel within the other channel of said traverse rod. A drive pulley is secured to an end of the second shaft and is disposed in one of said compartments. Manually operable pulls engage the drive pulley for effecting rotation thereof.