Abstract: A combination lock for luggage cases, comprising a frame, to be mounted on one part of the luggage case, a lock plate provided with a plurality of lock lugs, a plurality of lock wheels each having a slot to be selectively engaged with a corresponding one of the lock lugs, the lock wheels each being provided with a dial wheel, the dial wheels being laid flat side by side on the frame and having an upper surface carrying a group of code figures arranged in a circle. The lock plate is further provided with a hook means for engaging and disengaging a hasp member provided on another part of the luggage case. When the lock wheels are rotated to align the slots with the lock lugs, the lock plate is free to move so that the hook means can be moved toward and away from the hasp member.

Abstract: A detachable guard or cover for preventing access to the keyhole of cylinder type locks in the face of a wall or locked door of a tool cabinet is combined with openings in the wall on each side of said keyhole. The guard comprises a generally U-shaped body having a pair of anchor legs joined at one end by a shouldered rivet. The free terminal end of each leg has a right angular tongue which fits into one of the openings in the wall when the guard straddles the keyhole to anchor the guard against the rear face of the wall. A locking leg journalled on the rivet fixes the guard when in closed position. The anchor legs and the locking leg have holes, which register when in closed position, to receive the shackle of a padlock. Alternatively, a lock set or cylinder lock may be built in to the anchor legs, with its pawl positioned to immobilize the locking leg until turned by a key to unlock.

Abstract: A padlock having a permutation mechanism and a key mechanism, either of which can be operated to actuate a locking mechanism to lock and unlock the padlock, wherein the key mechanism is an integral part of the locking mechanism.

Abstract: A rivet nail for forming a nailed joint to join parts together. The nail has a shank with a longitudinally-extending opening formed therein in the shape of a rhomb defined by two congruent triangles with an imaginary common base line. The widest portion of the opening is defined by the base line. The length of the opening is at least three times as long as the largest width of the shank, and the length of the shank between the end of the nail and the opening is at least one-fourth as long as the length of the opening.

Abstract: This invention relates to a screw type fastener having a radially enlarged driving head and a thin walled head conforming cap having a skirt which is designed to be folded inwardly beneath the head in a lapped condition beneath the head to conceal the exposed edge of the skirt between an exposed clamping surface of the cap and the under surface of the head of the fastener.

Abstract: A drive cavity for a threaded fastener which is compatible with a variety of wrench drivers having hexagon-based profiles. The drive cavity is a prismatic projection of a multi-, primarily flat-sided, profile having its radially inner margins defined by the mid-sides of a common base hexagon and its radially outer margins defined by six trapezoid sectors each centered on and outlying the corners of the base hexagon.

Abstract: A panic exit door actuator and locking bolt mechanism of the rim type adapted for mounting in a horizontal position extending generally between the hinged edge and swingable edge of an exit door, wherein the locking bolt comprises a rotatable star wheel with a plurality of circumferentially spaced radial arms that are successively movable by rotation of the star wheel in one direction into salient bolted positions in which they are retained against reverse rotation to an unbolted position by a spring biased latch. The plane of rotation of the star wheel is traversed by the path of relative movement of a bar type strike mounted on the associated door frame, during closing movement of the door, whereupon the strike will engage one of the arms and rotate the star wheel to bring a following arm into a latched, bolted position overlying the strike.

Abstract: A security plate for entrance doors adapted to be secured by tamper resistant fasteners to the stop member of a door frame. The plate is elongated to extend above and below the lock area of the door. The plate has a relatively thick flat edge that abuts a closed door and the plate is formed with a concave portion adajcent the thick edge and connected thereto by a smooth tool-deflecting ramp.

Abstract: A pair of nail shank pieces are united face to face through the intermediary of a strip metal, and the tip parts of both nail shank pieces are tapered so that both nail shank pieces may be gradually opened as the nail is driven in. The metal strip is subjected to a compressive deformation to support the nail shank pieces from inside, thereby helping in their maintaining an opened state. Both nail shank pieces engage the base material in a dovetail fashion and in this way, the countering force against the nail's coming out is reinforced. A clamping ring fit around the outer circumference of both nail shank pieces to hold the metal strip therebetween such that both nail shank pieces are prevented from opening at the base material surface, and moreover, the opening made by the nail at the base material surface is protected from widening, while aiding in both nail shank pieces entering deep into the base material.

Abstract: An improved and simplified lock housing assembly for positioning and retaining lock or latch assemblies in cutouts in glass doors provided for that purpose which, outside of standard components such as screws, uses extrusion produced components so that the requirement for heavy machining and complex manual assembly is eliminated. The assembly includes a pair of spacers cut from the same extrusion which nest against an extruded elastomeric, channel shaped grommet about the cutout and position the lock assembly. The spacers are retained in the plane of the door by lengths of extruded plate which are fastened by screws to the opposite sides of the spacers and extend over upper and lower portions of the grommet. The screws and the grommet portion still exposed are in turn covered by extruded cover plates which include channels which slide over and dovetail with chamfered edges of the screw plates.

Abstract: An add-on locking mechanism for a vehicle hood is provided in addition to a standard hood locking arrangement. The locking mechanism includes a mounting plate which is mounted on a support plate of the locking arrangement, and a locking latch that is pivotally mounted on the mounting plate. The locking latch engages and disengages a hasp which is mounted on the hood and with which a pivotable catch of the locking arrangement also cooperates. The locking latch is operated by a Bowden cable which is connected to a key-operated lock situated in the passenger compartment of the vehicle. The cable core of the Bowden cable is connected to the locking latch, while the jacket is mounted on a mounting bracket that is mounted on the mounting plate.

Abstract: The mechanism, designed especially for use in an earth compacting drum, comprises a pair of concentrically-arranged, eccentrically-weighted elements, which are rotated in unison by means of a hydraulic motor. The mechanism is housed within an earth compacting drum, and the one eccentrically-weighted element is translatable, axially, and disengageable from a splined coupling, in order that it may be indexed to different rotary positions relative to the other eccentrically-weighted element. In this manner, vibratory amplitudes may be increased or decreased.

Abstract: The one legged fastener is for securing an object to a wall. The one legged fastener has a body with one leg which has a prebent knee that permits the leg to be easily inserted through a desired hole in the wall. The fastener body is made of a bendable material and has a tab portion and a foot portion at the opposite ends of the leg. The tab has a hole in alignment with a threaded hole in the foot portion. By placing a screw through the tab portion hole and turning it through the threaded hole in the foot, the one legged fastener bends at the knee and is secured to the wall to secure an object.

Abstract: A combination lock monitoring system for recognizing and indicating electronically the condition of operation of the lock, the recognition being achieved by photo sensitive means responding to the light reflecting quality of areas on the lock bolt mechanism, the lock drop arm and a combination wheel of the combination lock, the electronic circuit responding through a binary code to the condition of the photo sensitive means, and the indication including a visual display.

Abstract: A trunk lock including a latching plate for attachment to the upper section of a trunk, a hasp member hinged to an attachment plate to be affixed to the lower trunk section having a free end portion to overlie a keeper opening in the latching plate, a hollow cylindrical bolt housing projecting rearwardly of the hasp to nest in the keeper opening and having a pair of spring biased latching bolts to interlock behind the bounding edge of the keeper opening, a bolt actuator disk and key barrel member in the housing, and a throw away key captured in assembled relation with the bolt housing having a blade including a major leg extending substantially along the center axis of said key barrel and having a bendable end tab protruding rearwardly of the housing and bent behind the rear of the housing to retain the key therein.

Abstract: A fastener assembly for attaching articles to a penetrable surface such as drywall material found in the interiors of buildings. The assembly is comprised of a fastener, which fastener has a threaded shank with a pointed end and either a head or a second threaded end and an anchor member piercedly captured by the threaded shank of the fastener. The anchor member is held in a position substantially parallel to the axis of the threaded shank with the pointed end extending beyond the anchor member by a retaining means while the assembly is piercing a surface; as the assembly pierces the surface, the retaining means slips from engagement with the anchor member and, as the anchor member passes through the rear side of the surface penetrated, spring means on the anchor member urge the anchor member to a position substantially oblique to the axis of the threaded fastener.

Abstract: A clinch type nail having a generally flat shank with a pair of spaced penetrating portions having inner and outer walls that are disposed in angular relationship with each other and intersect along a generally straight line. The outer walls offer more resistance to penetration than the inner walls when the nail is driven which causes the penetrating portions to clinch inwardly toward each other and capture a plug of the material into which the nail is driven.

Abstract: A threaded fastener capable of recutting damaged screw threads during installation in a threaded opening has an axial opening in its leading end intersecting a transverse opening whose ends extend through the screw threads of the fastener. The fastener is provided in its periphery at least in one location thereon with a longtiudinal recess of greater depth than the screw threads which intersects the transverse opening at right angles thereto and extends longitudinally of the fastener away from one side of the transverse opening which is remote from the axial opening. A thread cutting surface is produced by the recess and thread cuttings pass therefrom into the transverse and axial openings during installation of the fastener.

Abstract: A screwed safety assembly capable of being assembled and disassembled at a distance and under immersion, in which the screw head comprises a deformable cylindrical ferrule (15) and in which the seating (4) of the screw head comprises widened portions (6) into which the ferrule partially penetrates when it is deformed by expansion. The seating (4) of the screw head further comprises, at the level of the upper edge of the ferrule (15), a circular groove (10) between the widened portions (6) and leading into these.

Abstract: A pivotal rivet assembly for use in swingably securing a riveted member to a companion member, comprising a pivotal rivet member having a rivet shank portion for pre-riveting, and an integrally-formed, cylindrical head, an outer portion of which head is provided with a pair of diametrically-opposed lugs the under-surfaces of which lie in a common plane perpendicular with respect to the axis of symmetry of the rivet and in spaced, parallel relation with respect to the annular shoulder defined by the juncture of the rivet shank portion with the rivet head. The companion member to be swingably attached is provided with a through opening, the peripheral size and shape of which opening is complemental with the outer peripheral shape of the pivotal rivet head and its integral lugs to permit passage therethrough of said rivet head upon assembly or disassembly.