Abstract: Axially-extending troughs in a bark of an internally-threaded collar receive setting balls of a driver that apply a torque to the collar through the balls bearing on the walls of the troughs. At a predetermined pre-load, the balls fail the bark and plow through it to develop circumferential furrows, and the torque application on the collar ends. A second torquing with balls at a different axial position fails the bark again at the same pre-load to compensate for any relaxation after the first torque application.

Abstract: A metal blind rivet assembly having a plurality of ribs with flutes between them located about the circumference of the barrel of the rivet sleeve. The ribs are arranged in a helix and at an angle so that during the setting operation a twisting motion takes place to scrape the workpiece so that contaminants such as dirt or varnish are removed to provide electrical contact with the workpiece.

Abstract: A quick acting threaded fastener assembly using two identical half nuts with alternating internal threaded and grooved portions which are either threadedly engaged or slidably aligned with a threaded rod which has corresponding alternating external threaded and landed portions. The screw and nut combination provides quick release and tightening features which facilitate opening and closing clamping jaws or pads on vises, clamps, adjustable wrenches and other devices otherwise requiring many turns of long screws.

Abstract: An anti-rotation locking device for threaded fasteners which secure rotating parts subject to vibration, shock and the like. The device comprises a strap member and one or more retainer members. The strap member is positioned under the fasteners and the retainer members each have a toothed opening which is installed over the matching wrenching surface of the fastener. Each retainer member also has an arcuate slot which is positioned above an arcuate tang on the strap member. The tang is lifted, passed through the slot, bent about the bottom of the slot and folded back over the top surface of the retainer member to thereby restrain the loosening of the fastener.

Abstract: A nail having a head and a shaft and a plurality of flutes extending from the head down the shaft and projecting outwardly from the axis of the shaft for a distance equal to the radius of the head. The nail is favorably employed in a device for automatically delivering the nail to affix soft material, particularly drywall, foam board and the like, to solid surfaces without disintegrating the material. The lower end of each flute is spaced from the nail head a distance substantially equal to the thickness of the soft material.

Abstract: A latch mechanism for the hingedly mounted glove compartment cover of a vehicle glove compartment includes a pair of latching members reciprocably mounted in the glove compartment cover and having a locking rod at the outer end thereof adapted for introduction into a recess in the glove compartment to latch the door in the closed position. Each latching member has at the inner end thereof a cylindrical surface with a right-angled triangular shaped groove having walls which are perpendicular to each other respectively arranged parallel and perpendicular to the longitudinal axis of the locking rod and the wall perpendicular to the longitudinal axis of the locking rod located toward the outer end of the locking rod. A handle is pivotable about a bearing axis disposed on the cover and in parallel relationship with the pivot axis of the cover.

Abstract: A fastening assembly comprises a first internally open member such as a collar, and a second internally open member such as a bifurcated plug which is slidable realative to the collar to an assembled position in which the plug is located at least partially within the collar, at least one protrusion provided between the collar and the plug causing the plug to be deformed when in said assembled position, so as to create at least one inwardly directed jaw or fang for use in fastening engagement with a workpiece such as an externally threaded stud located at least partially within the plug, the advantage being that the amount of driving force which is transmitted in the driving direction to the stud through means of the fastening assembly can be minimized, so that the fastening assembly can have a knock-on/screw-off capability even if the stud is resiliently mounted on compressible foamed material.

Abstract: A fastener plate for use in association with a fastener in a roof structure is described. The fastener plate includes a disc-shaped plastic member that has a depending central portion extending from its lower planar face and a depending peripheral flange. A metal insert seated in an opening within the plastic member contains an opening through which the fastener can be threaded.

Abstract: A rotary welding member made of synthetic resin material comprising a post portion, and a disk-shaped flange portion integrally mounted on one end of the post portion and having at least one groove in the mounting surface thereof for permitting air to flow therethrough with respect to an exterior periphery surface portion of the flange portion whereby excess frictional heat generated during the rotary welding process is effectively dissipated.

Abstract: A push-on type fastener (40) is provided for securing a cylindrical member such as a stud shank to an object. Fastener (40) includes generally axially aligned entrance opening (4) and exit aperture (6) surrounded by a resilient hollow projection (2) having a circumferentially continuous side wall. Aperture (6) is a non-circular opening defined between at least two retaining edges of projection (2) that are operative to provide engagement with the cylindrical member enabling the member to slide axially through exit aperture (6) from entrance opening (4) but inhibit movement in the opposite direction and which respectively include warped arcuate sections (3) adjacent the intersection between the respective extermities thereof that are operative to provide a stiffener for the retaining edges for smaller shank diameters and to stretch and prevent the retaining edges for splitting for larger shank diameters.

Abstract: A decorative capped wheel nut for holding a wheel on a motor vehicle where the capped wheel nut is exposed to view and to the environment. The nut has first and second ends, the first end to engage the wheel of the automobile, and a circumferential edge intermediate the first and second ends. The cap includes a side section to cover the sides of the nut insert and a top section, joined to the side section, to cover the second end of the nut insert. The opposite end of the side section terminates in a free edge, flare or flange which contacts the circumferential edge of the nut insert. The cap and nut insert are welded together at the contact between the circumferential edge of the nut insert and the free edge of the cap.

Abstract: A positionally bistable domed annular disc includes a projection which engages a transverse through hole or a recess in a shaft to be retained. The disc fits concentrically about the shaft and is concave in different directions when in its two stable positions, respectively. In a cotter pin embodiment the projection extends from the outer rim of the disc and is bent to fit solidly in a transverse hole in the shaft. The projection is inserted when the disc is convex toward the hole and not surrounding the shaft. When switched to be concave toward the hole the disc surrounds the shaft to preclude longitudinal and rotative movement of the projection. In a retainer ring embodiment the projection is a plurality of fingers extending from one or both rims and arranged to engage the shaft or the bore in which the shaft is retained in its closed position. In a shaft coupling embodiment the projecting fingers engage two or more shafts in a manner which tolerates axial, radial and angular shaft misalignment.

Abstract: The invention relates to a door fitting with at least one door operating unit, such as a doorknob, a door handle or the like, and at least one cover plate to cover the opening provided in a door, a window sash or the like for the door operating unit, in which the cover plate has at least one round opening for the door operating unit. Primarily in order to secure the door handle against being pulled off, but also in order to help secure the door handle against canting, the invention provides that the door operating unit for such a door fitting has a cylindrical circumferential groove in the area going through the opening in the cover plate when installed, and that the cover plate consists of at least two parts with curved recesses having inner shoulders that are adapted to the groove and which can be inserted into same, and that the curved recesses combine to form a circular opening in the cover plate when the pieces are combined.

Abstract: A bumper assembly is provided employing a fastener device which is received in a slotted opening formed in a sheet or plate. The fastener device is constructed such that an elongated flange is inserted through the slotted opening, and the fastener may be rotated through one quarter turn at which point it reaches a stop position and is locked in position. Upon reversal of rotation of the fastener through one quarter turn the rotation reaches a stop position at which point the fastener is easily removed from the slotted opening.

Abstract: A locking pin formed from an elastic material having in its longitudinal direction a symmetrical cross-sectional configuration having two opposite outlines (3,5), one of which (3) is formed by two straight lines extending from the ends of the pin and meeting between the ends to form an obtuse angle and a peak height (12) measured from an opposite straight line (13), which connects two end points of the second outline of the locking pin, the peak height (12) being larger than the diameter of the bore (14), into which the locking pin is to be inserted. The thickness of the pin at any point is less than the diameter of the bore, whereby the end points are positioned on a shoulder (6,7), which is formed at each end of the pin.

Abstract: Fastening device for fixing a screw or the like in a hole or opening in plaster board, or the like. It comprises a sleeve with a flange placed at one side of the board and a nut fixable against the back of the plaster board. A mounting screw is passed through the sleeve and the nut. The sleeve has an inner cone and the nut has a corresponding cone which extends into the inner cone. As the nut and sleeve are drawn together, the cones engage and spread the sleeve. The sleeve is provided with at least one pair of slits defining longitudinal tongues which are spread. A screw inserted through the sleeve into the nut pulls the cones together. The nut itself is provided with wings which may be bent out against the back surface of the board. The tightening of the nut on the screw thereby results in anchoring the nut against the back surface of the board and pulls the flange of the sleeve against the front surface and spreads the slit sleeve.

Abstract: A high-speed lock nut, especially for attaching a vehicle wheel to the clamping shift of a balancing machine, has a casing or body in which at least one threaded segment is positioned in a radially movable manner. Manually actuating means serve to move the segment radially. The actuating means engage with the segment by means of a radially-acting connecting link guide comprising pins on the segments and cooperating oblique slots in a coaxial disk. By means of the connecting link guide, the segment can be activated easily and securely, even under high contact pressures, for example, with contaminated threads. Furthermore, the thread segment is automatically locked in closed position against the threaded shaft of the balancing machine by the connecting link guide. The construction is very simple.

Abstract: An improved latching arrangement for selectively latching two members together to prevent relative movement there between in first directions. The two members may, for example, be the fixed and sliding windows of a sliding window. The improved latch means of the latching arrangement of the present invention is pivotally mounted on the moving member and is resiliently biased towards the fixed member. The latch means has a lip means that is engagable with a shoulder means on the fixed member when the latch means is in the latched position. The latch means is pivotally moveable away from the fixed member so that the lip clears the shoulder to allow relative movement of the sliding member with respect to the fixed member. The latch means is also provided with a swivel cam extending outwardly from the latch means into a channel in the second member in a locking condition thereof.

Abstract: A fastener snaps through aligned apertures in two work pieces. The shape of the aperture in the first work piece is such that the fastener cannot be withdrawn from it. However, the aperture in the second work piece is so shaped that the fastener can be rotated for removal of the fastener from the second work piece. The work pieces thereby can be separated, but the fastener remains in substantially permanent association with the first work piece for reuse of the work piece and the fastener.

Abstract: An apparatus for securing a rotatable trailer door is disclosed. The apparatus includes a fluid actuated cylinder having a free end and a fixed end with the fixed end being rotatably connected to the trailer; a control member, rotatably connected to the trailer, locks the door in its closed position; a control link, having a first end rotatably connected to the control member and a second end rotatably connected to the fluid actuated cylinder free end; and, an adjustable link, having a fixed end rotatably connected to the trailer and a free end rotatably connected to both the free end of the fluid actuated cylinder and the second end of the control link.