Abstract: A device for interconnecting two doors to hold the doors spaced apart in a standing, upright position so that the doors will stand in a stable condition with all sides of the doors being accessible for painting comprises an elongate connecting member having attachment members connected to the opposite ends of the elongate connecting member. Outwardly facing planar faces of the attachment members have a size such that they can be received flatwise within and attached to hinge attachment locations on the side edges of respective doors. The outwardly facing planar faces of the attachment members are oriented so that planes through the outwardly facing planar faces intersect each other at an included angle of at least about 15 degrees and up to 180 degrees.

Abstract: The fire protection of steelwork requires insulation material to be fitted around any exposed steelwork. Typical steelwork comprises I-section rolled steel members, but the flange thickness can vary considerably in thickness.The present invention aims to provide a single push-on clip which can be fitted to the most commonly used flange sizes providing a simple but effective means of attaching fire protection material to steelwork.Accordingly, the clip according to the present invention comprises a length of wire which is bent to form a first abutment disposed immediate the ends of the length of the wire and which is further provided with a pair of second abutments connected to the first abutment by respective connecting limb portions. The first and second abutments are adapted to engage opposite sides of a side flange of the steelwork. Twisting and/or bending of the wire allows the spacing between the first and second abutments to be adjusted to suit a particular flange dimension.

Abstract: A system for interlocking various computer peripheral enclosures to prevent them from falling off of desk tops or off of each other, to compactly organize them to save space and prevent disconnection or tangling of their connecting wires, to more easily and securely move them from one location to another, and to provide an attractive interlocking arrangement. L-shaped brackets are secured to the enclosures or housings, preferably at the enclosure bases, and extending up their sides. Interlocking devices have snap-in members at each end thereof. One member snaps into an opening in a bracket of one enclosure unit and another member snaps into an opening in a bracket of another enclosure unit, thereby the two units are securely held together in a side-by-side or one-on-top-of-the-other arrangement. Insertion of a narrow tool into an opening in the bracket allows for easy unsnapping or disconnect.

Abstract: A tube clamp assembly is provided having a one-piece clamp or casting with four clamping and aligning lugs projecting from each side of the casting. The four lugs on the first side of the casting are symmetrically arranged at the corner of an imaginary square and have two sets of clamping and aligning surfaces that lie in planes perpendicular to each other. The surfaces are spaced apart a distance equal to the distance between the faces of a first tube so that the casting can embrace the tube sides in either a first position or a second position rotated 90 degrees from the first position. On the second side of the casting, four lugs similar to the lugs on the first side project the opposite direction and also define two sets of clamping and aligning surfaces.

Abstract: An apparatus for supporting a heavy load above a tile roof without causing damage to tile members, comprising: an elongated base member adapted to lie upon the surface of the roof underneath a tile member; a lag bolt for securing the the base member to a rafter in the roof; a slidable carriage having a threaded hole therethrough, the carriage slidably engaging the base member; a threaded elongated shaft capable of being inserted through a hole in the tile member and into threaded engagement with the carriage so that the end of the shaft may be caused to engage the base member and thereby fixedly secure the shaft; and a means associated with the shaft for attaching a heavy load.

Abstract: An apparatus and method for rigidly joining construction elements to one another based on providing construction elements each having a connecting bore formed therethrough, positioning elements each having a connecting bore formed therethrough for aligning the connecting bores of adjacent construction elements, and partially expandable locking means dimensioned to extend through the aligned connecting bores of at least two construction elements and one positioning element. The construction elements and positioning elements are further equipped with engagement grooves and engagement ribs, respectively, for positioning adjacent construction elements in any number of predetermined angles. The locking mechanism has a radially expanding portion capable of locking the previously positioned construction elements in a rigid fashion.

Abstract: Modular clutch construction in which a clutch cover assembly, concentrically containing a pressure plate actuating a clutch disc assembly, is fixed to the flywheel of an engine as a modular unit. The construction improves the modular connection between the clutch cover peripheral wall and the flywheel; in particular through the use of pins to restrain the cover from whirling relative to the flywheel, and by a taking advantage of a method of starter ring-gear installation in which the gear is shrink-fitted over the flywheel with the clutch cover peripheral wall intervening, such that the circumferential end margin of the clutch cover is simultaneously clamped between the ring gear and the flywheel cylindrical surface. The clutch cover is thus secured onto the flywheel in an assembly stage of reduced steps, by comparison with methods employing bolts or other fasteners as the primary connecting means.

Abstract: Motherboards and cards (herein "boards") mounted in computer enclosures must be supported on X, Y and Z axes to resist shock and vibration. This requires that four edges of the board be supported. Because of the high cost of such boards their lengths are made as small as possible, and this dimension is the direction of insertion of the board. A guide is attached to the leading edge of the board having a depending foot which engages fasteners formed on the base of the chassis of the enclosure. Thus the inner edge of the board is supported along two axes. Two side edges of the board are held in tracks and the outer edge is held at the point of insertion.

Abstract: The invention provides a modular pedestal for a bank of vending machines, comprising a plurality of pedestal modules onto which each vending machine is mounted. Each pedestal module has a plurality of connecting posts disposed adjacent to edges of the top face at selected positions, so that when pedestal modules are placed side-by-side at least one post on the pedestal module is adjacent to at least one post on an adjacent pedestal module. A connecting member, having a plurality of openings spaced apart a distance approximating the spacing between adjacent posts of the adjacent pedestal modules, is placed over the adjacent connecting posts to connect the modules together, and retained in position by the base of the vending machine.

Abstract: A method of reinforcing a sandwich panel having opposed first and second skins spaced apart by a core having a thickness "F" in a manner to preserve the spacing between the skins, including the steps of boring an in-line hole through the panel to provide a hole in both skins and the core of a diameter "A", enlarging the hole in the first skin to a diameter "B", inserting a tubular sleeve into the in-line hole, the sleeve having a length substantially equal to "F" and having an external diameter greater than "A" and slightly less than "B", the first end of the sleeve contacting the inner surface of the second skin, and flaring the second end of the sleeve to an external diameter greater than "B" so that it engages the inner surface of the first skin, and inserting a bolt through the sleeve, the bolt having a head to contact the external surface of the first skin and applying a nut to the bolt to contact the external surface of the second skin so that the skins are held in fixed position by the bolt.

Abstract: A method of reinforcing a concrete made construction comprising the steps of provisionally disposing a reinforcement member onto a lower surface of a concrete made construction, forming holes at the lower surface of a concrete made construction, and inserting fixtures into the holes to fixate the reinforcement member onto the lower surface of a concrete made construction so that the fixture imparts tension force to the reinforcement member in a plane of the reinforcement member. For instance, a fixture includes a device for applying tension force to the reinforcement member in a plane thereof by moving at least a part of the fixture in a direction perpendicular to the reinforcement member. The invention ensures fixation of a reinforcement member onto a lower surface of a concrete made construction such as a bridge to which repeated live loads are always applied.

Abstract: A lamp base and a lamp base kit having component parts capable of being compactly packaged and quickly and easily assembled into a lamp base by a customer. The lamp base kit includes three separate connectors respectively having internally threaded openings therein and includes a pair of tubes respectively having externally threaded portions on the ends thereof which are adapted to respectively threadedly engage with the threaded openings in the connectors when the lamp base is assembled to establish a pole. The lamp base further includes a stand, and a lamp and shade holder which respectively have fixedly attached thereto one of the connectors. The stand includes three disconnected legs and a mounting hub. Each of the legs has a recessed socket and a hole through one end thereof. The recessed sockets of the legs are adapted to respectively receive pins which are fixedly attached to the hub. Each of the legs in addition has a hole therethrough.

Abstract: A bearing element for a substantially panel-like component having a support rail adjustably arranged thereon. The support rail may be connected to another bearing element of another component. The bearing element includes a recess in which the support rail is received at least in part. The bearing element includes a base member fastened by means of a pressure element to the component. The support rail may have a straight or angular shape and may include a hinge or joint in its central portion.

Abstract: A universal anchor for securing electrical connectors to a motor vehicle includes a body portion and a stem portion extending downwardly from the body portion. The stem portion is constructed and arranged for being secured in an opening in a motor vehicle. The body portion includes a first mount having a first upper surface and a pair of parallel, spaced apart rails disposed the lateral sides of the first surface. A first locking member is disposed on the first upper surface and between the rails for being engaged by locking means on a connector to be mounted thereon. The body portion also includes a second mount defined by an elongated portion projecting from the first mount and having a second upper surface formed thereon and a flange is mounted along each lateral side of the second upper surface. Second and third locking members are disposed on the second mount and spaced apart in a longitudinal direction.

Abstract: A belt fastener having an upper plate and a lower plate with holes which align with holes in a pair of belt ends, and bolts are inserted through the aligned holes of the plates and the belt ends, and nuts screwed onto the bolts, to connect the belt ends. A preassembled lower plate and bolt combination is provided in which bolts are retained in their respective lower plate apertures by washers disposed on the bolt shanks. The washers are disposed on the bolt shanks sufficiently close to the lower plate to maintain anti-rotational engagement of the bolts with the lower plate, and spaced sufficiently far from the lower plate to allow outward swinging of the bolts to an insertion position for insertion of the bolts through the belt holes in an outwardly swung position for subsequent drawing together of the bolt and belt ends.

Abstract: An assembly for mechanically hanging a glazing element to a supporting structure uses an articulated fixing system allowing the plate to tilt about its support point on said system. It includes a cavity defining element engaging the glazing element and a carrying element connectable to the supporting structure and having a portion fittable in a cavity defined by said cavity defining element so as to form an articulated connection with said cavity defining element. The articulated connection has a bearing region and supports the glazing element for turning with a pendular motion about the bearing region. This makes possible a bending movement of controlled amplitude of the glazing element.

Abstract: A tonneau cover assembly is provided having a rail system, a cover and one or more clamping mechanisms. The clamping mechanism includes a two-piece clamp. The first member is engageable with the rail, and includes an abutment mechanism thereon to contact the rail. The first member also includes a pivotable lever which can be used to exert a force on the second member. The first member includes an opening therein to receive the second member therethrough. The second member includes an extension having one or more teeth thereon. The extension is positioned through the opening in the first member, such that the teeth may engage a portion of the first member. The second member also includes a portion which is engageable with a vertical rail of the side wall of the vehicle. By actuating the lever, the clamp is positioned securely to the rail and the vehicle side wall.

Abstract: A clamping apparatus used for improving the fastening of a mounting projection between proximal and distal flanges of a clevis. The proximal flange of the clevis has a hole, an inner side facing the distal flange, and an outer side. The clamping apparatus includes a threaded clamping plug sized to fit in the hole in the proximal flange and to abut the mounting projection when the clamping plug is in the hole in the proximal flange and the mounting projection is between the two flanges. Another embodiment is an apparatus for fastening a mounting projection to a structure. The fastening apparatus includes a clevis attached to the structure, the clevis having a proximal flange and a distal flange. The proximal and distal flanges each have a hole, an inner side, and an outer side.

Abstract: A method of installing trim employs a Snap Tack fastener which allows the trim to snap on and off when needed. The Snap Tack includes a ball head screw which snaps into a small plastic receptacle. In a typical application, several ball head screws are screwed into the back side of some floor molding. The molding, with the screws in place, is pressed against a wall where the molding is to be fastened. Enough pressure is applied to have the ball screws leave small indentations in the wall. Holes are drilled at the indentations, and the receptacles are installed in the holes. The molding with its screws can then be snapped into place and later removed when needed.

Abstract: This invention involves a method and apparatus for joining wall segments together into a curved configuration. It is useful in constructing curved walls or domes, such as geodesic domes. More specifically, this invention involves triangular members for assembly into a geodesic dome.

Abstract: A connecting device for releasably interconnecting first and second bodies includes a housing which can be applied to a holding means, and a locking pin having a locking head which can be turned to and fro between a starting position in which the locking head can be introduced into a receiving opening in the holding means and a locking position in which the locking head engages under a support portion formed by edge regions of the receiving opening. A stressing spring arrangement is operable to urge the locking pin from an axially advanced position in the starting position of the device into an axially withdrawn position in the locking position, in which the pressure contact surface of the locking head is pressed by the spring arrangement against the support portion of the holding means.

Abstract: An end frame assembly includes an outer frame, a lower support attached to the outer frame, and a plurality of spindles attached between the outer frame and the lower support. Heat deformable connectors are disposed between the outer frame and the lower support subsequent to painting the outer frame, lower support, and spindles. A plurality of rivets are used to connect the outer frame to selected spindles.

Abstract: A portable electrical fan including a housing defining inlet and outlet openings for transmitting air; a fan blade disposed in the housing; a motor supported by the housing and rotatably coupled to the fan blade; a base for placement on a support surface and having a coupling for detachable connection to the housing, the base defining a base receiving portion; an elongated standard having one end detachably secured to the coupling and an opposite end detachably secured to the housing, the standard defining a standard receiving portion; an electrical control connected to the motor; an enclosure retaining the electrical control and removably receivable by either the base receiving portion or the standard receiving portion; and a retainer for securing the enclosure to either the base receiving portion or the standard receiving portion. Conversion of the invention into either a floor or table fan is easily accomplished.

Abstract: An apparatus for use in retaining spinal elements in a desired spatial relationship includes a fastener for engaging a spinal element. A longitudinal member is positionable along the spinal column. A connector member interconnects the fastener and the longitudinal member. The connector member has a mounting section with surface means defining a first opening through which the fastener extends. The longitudinal member extends through a second opening in the connector member. The axis of the opening through which the longitudinal member extends is perpendicular to top and bottom surfaces of the connector member. The mounting section has a side surface extending at an acute angle to the top and bottom surfaces. The connector member includes a surface that is parallel to the longitudinal axis of the opening through which the longitudinal member extends.

Abstract: A fastening system which may be used for fastening boards, particularly illuminated advertising signs, by the opposite edge thereof to a frame structure. In the fastening system, the fastenable edge of a board are (15, 16) are fitted with a fastening profile (8) having a substantially H-shaped cross-section. The fastening system includes a cross-sectionally substantially C-shaped locking profile (9) as well as fastener (10) for fixing the C-profile (9) to a tubular member (2), included in the frame structure and cooperating with the C-profile. The fastening of board edges (15, 16) to a frame structure can be effected by placing a leg (9a) of C-profile (9) in a groove between the legs (8a) of H-profile (8) extending away from the board in a manner that the H-profile settles against the tubular member (2). Thereafter, upon fixing C-profile (9) to tubular member (2) with fastener (10), the H-profile (8) is locked through the action of friction between the leg (9a) of C-profile (9) and the tubular member (2).

Abstract: A portable electrical fan including a housing defining inlet and outlet openings for transmitting air flow; a fan blade disposed in the housing; a motor disposed in the housing and rotatably coupled to the fan blade; and an elongated support having opposite end portions attached to the housing and an intermediate stand portion shaped and arranged to support the housing on a surface. Also included are electrical controls connected to the motor and retainer means retaining the electrical controls fixed to the elongated support. This arrangement provides a portable electric fan in an efficient, low cost configuration.

Abstract: A fastener extends through a bushing in a panel for joining the panel to a stationary frame. The bushing includes a tubular plug extending through the panel which includes a head, a shank, and a distal end. The bushing also includes a tubular sleeve extending into the panel and disposed around the plug shank, with an integral collar being fixedly bonded to a back surface of the panel. The panel is fixedly trapped between the collar and the plug head, and the plug distal end abuts the frame for predeterminedly spacing the collar from the frame.

Abstract: Supporting metal fittings for double beams comprising, double beams which are composed of two angles disposed in parallel with each other at a given interval, an upper metal fitting having notched portions in which the upper portions of the double beams are engaged, said upper metal fitting also having a tongue portion which engages between the double beams, a lower metal fitting having retainers by which the lower portion of the double beams is retained, said lower metal fitting also having a tongue portion which engages between the double beams, and a fixing member coupled to both the upper and lower metal fittings and inserted between the double beams for fixing them together, enabling the easy manufacturing of the supporting metal fittings for double beams for installing ducts, etc., using non-machined angles.

Abstract: A display accessory for rigid connection to a display panel of the type having an elongated longitudinal undercut retaining channel along one edge and having a narrow slot entrance to the retainer channel. The accessory includes a longitudinal tubular member of circular or polygonal cross-section and at least one pair of aligned longitudinally spaced apart connectors on the tubular member. Each of the connectors comprises a lock pin extending through the wall of the tubular member and having a large retaining head within the tubular member. The opposite end of the lock pin has a locking member having opposed flat faces. The shape of the locking member corresponds to the cross-section of the retainer channel of the panel to which the accessory is to be connected and the thickness of the locking member is such that it fits within the channel slot of the display panel.

Abstract: An apparatus for mounting a shearing blade specifically for use in a cut-off die set of the type used to cut tubing continuously emanating from a mill. The present invention is directed toward the shearing blade assembly used in conjunction with the notching blade of the cut-off die set. The subject device includes a mounting block fixed to the upper platen of the die set, a shearing blade mounted in a shearing blade cartridge, and a locking stud rotatably mounted on the mounting block which threadably engages and secures the shearing blade cartridge to the mounting block.

Abstract: A seamed metal roof is formed from an array of panels having lateral edges interconnected by rolled seams, and a plurality of clamps, each comprising a first elongate part having a mating surface, a longitudinal recess having dimensions like those of the seam, a second elongate part having a mating surface opposing the recess and the mating surface of the first part, and a fastener for drawing said parts together, to confine the seam in the recess.

Abstract: A pipe connecting structure for a pipe-type modular wiper apparatus includes: a first bracket to which a wiper motor is fastened; and a second bracket to which a wiper shaft is fastened and which is, via a pipe member, integrally connected to the first bracket to which a wiper motor is fastened. The pipe member is integrally fastened to the brackets by integrally inserting a pipe nut into an insertion hole formed at a position at which the pipe member is connected to the bracket in such a manner that a bolt is, in a threaded manner, inserted from the bracket side in a state where the bracket is brought into contact with a head portion of the pipe nut projecting over the pipe member. A recess-groove shape fastening groove portion is formed in a portion of the first bracket to be tightened by the bolt, and the pipe fitting groove portion has a depth with which the pipe member can be fitted by a degree larger than the half of the pipe member.

Abstract: A fastener installation for securing a composite member to a structure. The fastener installation includes a shear member adhesively bonded to a surface of the composite member, and a pin member extending through the shear member and composite member to engage a fastener bore of a structure member and a securing member. The pin member engages a bearing surface of the shear member in bearing contact, and extends through an opening in the composite member spaced from the composite member. Shear forces are transferred between the composite member and the pin member through the adhesive bond, the shear member, and the bearing surface, rather than by bearing contact between the pin member and the composite member. An end of the pin member engages the securing member and acts in cooperation with a head of the pin member to apply compressive force to the composite member, thereby securing the composite member to the structure.

Abstract: A workpiece holder apparatus for either panels or cabinets is disclosed. The holder can be used for either panels or the like or cabinets and assists workers in holding the workpiece, raising the workpiece, and precisely positioning the workpiece into place, thereby facilitating the permanent affixing of the workpiece to the ceiling joist or wall studs and in the case of cabinets installation, against the wall itself. Thereafter, the workpiece holder apparatus can be quickly disassembled after the attachment of the workpiece to the ceiling joist or wall studs.

Abstract: An adjustment mechanism for a button stitching machine includes a shaft rotatably mounted in a support block and having a threaded, forwardly extending portion and a rearwardly extending portion. The threaded forwardly extending portion threadedly engages a bore provided in a rear end of a rear tongue of the button stitching machine. Rotation of the shaft causes the rear tongue to advance and retreat accordingly. A potentiometer-type dial provides an inner scale graduated for indicating fractions of a turn and an outer scale which counts the number of turns.

Abstract: This invention provides a fastening system comprised of at least two pieces to be fastened together, the pieces exhibiting planar characteristics and each piece is characterized by having at least one slotted through bore in the material comprising the piece and, a fastener having a stem portion and orthogonally oriented cross bar portions at each of its ends to define an I-shaped configuration, the fastener interconnecting the pieces together in planar face-to-face orientation by having one of its cross bar portions passed through the slotted bore in one of the pieces and having the other cross bar portion passed through the slotted bore in the other of the pieces such that the stem portion is in a seated engagement within the bores of the pieces.

Abstract: A mounting assembly for fixing a panel to a space frame defining the general shape of an automotive vehicle that provides accurate, adjustable positioning of the panel with respect to the space frame and accommodates differential growth and shrinkage of the frame and the panel induced by temperature changes. The assembly includes a multi-piece fastener held axially and radially fast with respect to the space frame and axially and radially free with respect to the panel.

Abstract: A rubber-metal bearing element 1 comprises two parallel washers 2, 3 interconnected by a rubber block 4, from which extend threaded bolts, 5, 6 for screwing the bearing elements to the parts 9, 10 to be joined. To prevent the threaded bolt from being entrained by the nut 12 with the latter is tightened, the washer 3 is concave inwards so that only its circumference is in contact with the part 10. The friction torque between the washer 3 and the part 10 is greater than between the nut 12 and the threaded bolt 6. The nut 12 can therefore be tightened, without entraining the threaded bolt, until the washer 3 is flattened against the part 10.

Abstract: A modular roof panel assembly for a modular panel system used in constructing relocatable buildings. The roof panel assembly includes a first panel hingedly connected to a second panel for allowing the first and second panels to pivot towards and away from each other about a common axis. The first panel is hingedly connected to the second panel such that a plurality of apertures exist between the first and second panels proximate the common axis and for allowing the panels to be folded to a compact configuration to decrease shipping, handling and storing costs. The assembly includes a ridge cap for preventing water from passing through the apertures between the first and second panels. The ridge cap includes a top panel sized to cover the apertures and is positioned above the first and second panels proximate the apertures.

Abstract: The invention concerns quick release fastenening means particularly for coupling furniture parts.

Abstract: The present invention it to provide an angle iron for speedy pipe hanging, particularly is related to an angle iron requires no prior size measuring and boring during the construction of pipe hanging so to save man hours and is applicable to all tubular objects having the general specification that allos easy and facilitated use as its primary objective. The present invention comprises a set of angle iron and fastening components, which including U screws, nuts and packings. Essentially, it is characterized by pre-punching out on either plane of the angle iron a series of strip openings with each abutted openings having a certain spacing while both ends showing an arch respectively; then the processed angle iron requires no size measureing and boring when to be feastened to the tubular objects as to allow speedy construction, particularly is applicable to the fastening of pipe hanging of tubular objects having the general specification.

Abstract: An adjustable bracket incorporates a base member to be secured to a secondary member. The base member has an aperture formed in it and a plate member is mounted adjacent to the base member so as to be slidable relative thereto, the plate member engaging with the base member so as to be slidable relative thereto, the plate member engaging with the base member in the direction of sliding so as to restrict rotation of the plate member relative to the base member. The plate member has an elongate slot which is inclined relative to the direction of sliding and is co-operable with the aperture in the base member so as to define therewith a window of variable position. A fastening element passes through the window for securing the base member to the secondary member.

Abstract: A structural rack comprising a column and a beam, each made from a standard channel with a web and two tapered flanges, and a bolted connection between the column and the beam. The tapered flanges of the beam are notched so as to form an internal corner, into which an external corner of the column is fittable. The bolted connection uses a conventional bolt and a special nut, which has a flange-engaging surface conforming to a curved surface where one of the tapered flanges of the column meets the web of the column. Upon relative movement of the column and the beam as the bolt and the nut are tightened, the flange-engaging surface cams the last-mentioned flange against adjacent edges of the notched flanges, thereby to assemble the beam and the column with the external corner fitted tightly into the internal corner.

Abstract: A stop pin which has a forward end and a latching end is employed between spaced plates or walls having aligned apertures. The latching end of the stop pin has locking buttons formed on longitudinal faces of the stop pin and a shoulder spaced from the locking buttons by the thickness of the first plate. The forward end of the stop pin is inserted through the first aperture and into the second aperture. Additional axial force on the stop pin forces the lock button through the first aperture by rotating the latching end into relieved portions of the first aperture while the forward end of the stop pin opposes rotation. After the stop buttons pass through the first plate the pin straightens and is latched with the stop button and the shoulder on opposite sides of the first plates.

Abstract: A stacked array comprising at least one or more similar or dissimilar metals or composites and having either a tapered bore or a tapered sleeve. A tapered bolt adapted to be inserted into the tapered bore and having a taper that is different from the tapered bore. A method for selecting a greater or lesser taper on the bolt than the taper on the bore depending on the relative strength of the materials forming the stacked array as a means of reducing the installation force of the tapered bolt within the tapered bore.

Abstract: Road safety guardrails are constituted by vertical wooden posts carrying at least one horizontal rail made up of wooden logs which are connected end-to-end by pairs of metal straps which are interconnected by bolts, each passing through both straps and one or other of the logs. Each inter-log connection is reinforced by incorporating metal rods that run through each log and intersect the diametrical plane containing the bolts for interconnecting the straps.

Abstract: A structure for fastening a resin member to a base member typically composed of a metallic material with a threaded bolt passed through holes provided in the resin member and the base member, comprising a metallic sleeve through which the bolt is passed fitted in the hole of the resin member, the length of the sleeve being slightly shorter than that of the hole of the resin member. Therefore, when the threaded bolt is tightened, the inner circumferential wall of the hole of the resin member collapses upon a longitudinal end of the sleeve so that the threaded bolt may be securely tightened without damaging the resin member because the metallic sleeve bears a substantial amount of the stress produced by the fastening of the threaded bolt.

Abstract: An apparatus for attaching external stores or loads on a thin walled pole includes a first, open ended and externally threaded hollow sleeve defining a shoulder at one end, and a second, open ended and internally threaded hollow sleeve. An elliptical disk mounted to one end of the second sleeve defines a second shoulder. An other end of the first sleeve is threadable in an other end of the second sleeve to form a hollow sleeve assembly of variable length. The elliptical disk has an elliptical projection which fits in an elliptical hole of a thin walled pole when the hollow sleeve assembly is fitted therein. By using an external tool to relatively rotate the first and second hollow sleeves, one can tighten the hollow sleeve assembly to provide an expansive prestress and support for a bolt which passes through the hollow sleeve assembly for attachment of stores or loads.

Abstract: Staging particularly for use in group photography comprises spaced support assemblies 1, 2. Each support assembly comprises a rearwardly inclined truss member 3, 4 supported by a respective pair of legs 5, 6 arranged in an inverted-V configuration. Each truss carries a series of support brackets 14 to which decking members 15 are connected for pivotal movement in vertical and horizontal planes enabling the support assemblies to adopt different attitudes. The feet of the legs 5, 6 and the lower ends of the trusses swivellably stand on ground plates 13. The lower ends of the legs 5, 6 are pivotally coupled to a bracing bar 9 and their upper ends are pivoted together enabling the legs to be adjusted in length for coarse levelling of the support assemblies. A tie rod 11 joins the bracing bar 9 to the lower end of the respective truss 3, 4.

Abstract: A rivet installation method creates a preload on the workpieces being joined. The rivet shank is urged to resist compression during installation while a ring on the end of the shank is compressed against the workpieces. Withdrawing the compression releases the shank to provide the preload.