Abstract: One end of a stranded steel cable is attached to a cast zinc seal housing having a chamber in which a steel sleeve with a tapered bore is positioned. The sleeve in one embodiment is fixed to the housing in the chamber or may be displaceable and captured in the chamber in a further embodiment. A serpentine clip locking member captured in the housing chamber resiliently radially grips the a second end of the shackle inserted into the sleeve bore and wedges and locks to the cable and sleeve when the shackle is withdrawn. The sleeve precludes damage to the softer zinc housing by the locking member when the locking member is displaced in the housing chamber. Various embodiments are disclosed. In a further embodiment, the one end of the cable exits the housing in a plane different than where the second end enters the chamber to enhance ease of insertion of the second end into engagement with the locking member.

Abstract: An elongated channel protector has an end wall that precludes axial displacement of the protector along an elongated rail car plug door operating handle in one direction. Angle shaped members extend from the protector laterally for engaging a cover appurtenance on the door for precluding axial displacement of the protector in the opposite direction. A pair of legs depend from the protector side walls and have aligned holes for receiving a bolt seal. Tubular elements surround the holes to protect the seal head and locking body. The seal is seated beneath the handle which is covered by the protector locking the protector to the handle.

Abstract: One end of a stranded steel cable is attached to a cast zinc seal housing having a chamber in which a steel sleeve with a tapered bore is positioned. The sleeve in one embodiment is fixed to the housing in the chamber or may be displaceable and captured in the chamber in a further embodiment. A serpentine clip locking member captured in the housing chamber resiliently radially grips the a second end of the shackle inserted into the sleeve bore and wedges and locks to the cable and sleeve when the shackle is withdrawn. The sleeve precludes damage to the softer zinc housing by the locking member when the locking member is displaced in the housing chamber. Various embodiments are disclosed. In a further embodiment, the one end of the cable exits the housing in a plane different than where the second end enters the chamber to enhance ease of insertion of the second end into engagement with the locking member.

Abstract: One end of a stranded steel cable is attached to a cast zinc seal housing having a chamber in which a steel sleeve with a tapered bore is positioned. The sleeve in one embodiment is fixed to the housing in the chamber or may be displaceable and captured in the chamber in a further embodiment. A serpentine clip locking member captured in the housing chamber resiliently radially grips the a second end of the shackle inserted into the sleeve bore and wedges and locks to the cable and sleeve when the shackle is withdrawn. The sleeve precludes damage to the softer zinc housing by the locking member when the locking member is displaced in the housing chamber. Various embodiments are disclosed. In a further embodiment, the one end of the cable exits the housing in a plane different than where the second end enters the chamber to enhance ease of insertion of the second end into engagement with the locking member.

Abstract: A bolt seal protector includes a V-shape or trapezoidal shape set of side and front walls. A set of transverse walls are attached to the side walls in the interior space defined by the side and front walls and include bolt shank receiving apertures. The transverse walls are attached to the side walls by projections. Top and bottom walls may be provided to enhance security. Flanges may be attached to the side walls. The flanges may extend inwardly or outwardly relative to the interior space at the top and bottom side wall edges. The transverse walls are recessed for receiving the bracket of a hasp of a keeper bar assembly which hasp is received between the transverse walls. Slots are provided in the side walls to receive a keeper bar handle and to provide clearance for hasp bracket fasteners and the like. Different thickness walls and flange shapes are provided for a given security need. Different embodiments are disclosed including a tool for use with certain of the embodiments.

Abstract: An elongated channel protector has an end wall that precludes axial displacement of the protector along an elongated rail car plug door operating handle in one direction. Angle shaped members extend from the protector laterally for engaging a cover appurtenance on the door for precluding axial displacement of the protector in the opposite direction. A pair of legs depend from the protector side walls and have aligned holes for receiving a bolt seal. Tubular elements surround the holes to protect the seal head and locking body. The seal is seated beneath the handle which is covered by the protector locking the protector to the handle.

Abstract: One end of a stranded steel cable is attached to a cast zinc seal housing having a chamber in which a steel sleeve with a tapered bore is positioned. The sleeve in one embodiment is fixed to the housing in the chamber or may be displaceable and captured in the chamber in a further embodiment. A serpentine clip locking member captured in the housing chamber resiliently radially grips the a second end of the shackle inserted into the sleeve bore and wedges and locks to the cable and sleeve when the shackle is withdrawn. The sleeve precludes damage to the softer zinc housing by the locking member when the locking member is displaced in the housing chamber. Various embodiments are disclosed. In a further embodiment, the one end of the cable exits the housing in a plane different than where the second end enters the chamber to enhance ease of insertion of the second end into engagement with the locking member.

Abstract: A molded transparent thermoplastic housing has a programmable transmitting circuit for transmitting seal identifying serial number, seal location, container identification and other data to a local receiver. A door in the housing permits access to the circuit for programming the seal indicia and related data for transmission. A contact arrangement forms a switch upon insertion of a locking bolt into a locking mechanism in the housing and applies battery power through the bolt to activate the data generating circuit. A conductor along the bolt shank is connected to the circuit provides a tamper evident signal to the circuit when the bolt is severed. The circuit senses the removal of the bolt or severed bolt condition for generating a “tamper” signal which is transmitted to a local receiver/reader.

Abstract: Two mating L-shaped steel sheet casing members in one embodiment for sliding doors are secured to a corresponding door and have overlying front walls in the closed state. Each member has a plurality of corresponding locking keeper elements. In the closed state the keeper elements are in interdigitated juxtaposed and preferably welded to the casing members via through optional bores in the casing members, or extend through the side walls of the casing formed by side wall sections. The keeper elements in one subassembly are slotted to allow for misalignment with the other keeper elements for receiving a locking bolt seal shaft. The keeper elements optionally have tongue projections for engaging a gap between the closed doors. An angle iron member shields the rear of the chamber below the lowermost locking element to protect the seal locking body. Other embodiments are disclosed and include cast assemblies with no weldments and a single casing and hasp for use with swinging doors or a rail car plug door.

Abstract: A steel plate hasp is permanently fixedly attached to a door keeper bar, the bar for rotating about its longitudinal axis between door closed and open states. A casing has a plurality of walls forming a housing cavity in which the hasp is received through an opening in a housing wall with bolt seal shank apertures aligned in the hasp and housing. The casing may be permanently secured to the door by bolts or welds or may be selectively attached and removed from the hasp in a locked and unlocked state without fixed attachment to the door. A bolt seal has a shank with a head at one end wherein the head engages a housing wall and a locking body engages and locks to the shank other end and to a further housing wall. The shank between the head and lock body is fully enclosed by the housing and door to preclude access to the shank by tampering tools. The casing when secured to the hasp cooperates with the door to prevent the keeper bar from rotating open.

Abstract: A plurality of walls form a housing cavity in which a latch hasp is received. An opening in the housing receives therethrough the latch hasp, the latch enclosing the cavity. The bolt seal has a shank with a head at one end or with a U-shaped bight in a second embodiment. The head engages a housing wall and a locking body engages and locks to the shank at a shank end distal the head. The shank between the head and lock body is fully enclosed by the housing and latch to preclude access to the shank by tampering tools. In a second embodiment, the shank bight engages the received hasp of a latch. The shank distal the bight is locked to the housing by a locking body. The latch depends into and encloses the housing cavity open at the top. The shank between the bight and the locking body is fully enclosed in the cavity. Different housings are disclosed wherein the head may be enclosed or exposed for access by a shank breaking tool. A reusable bolt and locking body is disclosed for use with several embodiments.

Abstract: A steel bolt has weakening grooves at one end to which a head is swaged, the head having two frusto-conical portions at opposite ends. One end has a frusto-conical step for receiving a pair of jaws of a bolt breaking tool. A resilient spacer is attached to the bolt next to the head for limiting the depth of entry of the bolt head into a hasp hole, to provide access clearance for the tool and to permit the bolt to tilt to assist in breaking the bolt. The spacer is received in one hasp hole smaller in diameter than a second hasp hole to limit the depth of insertion of the spacer and the bolt head tapered end portion into the hasp. A seal with a conventional locking mechanism has a frusto-conical end region which partially engages the other hasp hole. The bolt and seal cooperate to lock the seal axially at different positions so the seal is engaged with one hasp hole and the bolt head engaged with the other hasp hole.

Abstract: A stamped hardened sheet steel tapered ferrule with cantilevered radially resilient fingers is wedged by a spring against a tapered bore of a hardened steel housing. The fingers bend radially inwardly to grip a stranded steel cable in the ferrule bore in response to the spring action. When the cable is slid in the ferrule in one direction, the ferrule gripping the cable is further wedged against the tapered bore and further grips the cable. The cable is released when it is slid in the opposite direction pulling the engaged ferrule away from the tapered bore of the housing. The cable has a flag at one end which with the seal lock a hasp therebetween limiting the relative motion of the cable in the opposite ferrule release direction. In a second embodiment, the ferrule is in interference fit with a rod or cable and the spring is not used forcing the ferrule to always grip the rod or cable.

Abstract: Locking seal including a rod which is spring-locked within a lock body includes channel structure within the lock body and in the rod surface to preclude removal of the rod even during relative rotation between the rod and the lock body.

Abstract: A bolt lock, for receiving and locking the end of a bolt having a head portion with a locking shoulder, said lock comprising a housing having internal jaws forming a central aperture, said jaws being expansible to allow the head of the bolt to snap through the opening so the the bolt shoulder latches behind the jaws. The jaws are retained in the housing above an aperture in the body which receives the inserted bolt head and below a bolt aperture in the upper portion of the housing, so that when the bolt is assembled, axial movement thereof causes the edges of the apertures to contact the internal jaws around and in spaced relation to the central aperture thereof. The jaws have upper and lower surfaces which are slightly inclined toward each other in relation to the axis of the central opening from the central aperture to the periphery of the jaws.

Abstract: A locking device is provided including a lock body and an elongate member which may be locked together. The elongate member includes a neck portion and on its end supports a head. The lock body includes a body member having an annular recess therein with a retainer having a hole therethrough and fixed to the body to overlie the recess. A pair of locking jaws are supported above the bottom of the recess and are biased together. In one aspect of the invention, the recess is tiered to define a shoulder upon which the locking jaws rest. An elastic O ring extends around the locking jaws to bias them together. In another aspect of the invention, a U-spring on the upper ends of its legs supports the locking jaws, and the U-spring is supported by a shoulder defined above the bottom of the recess.

Abstract: A lock slidable in one direction over a cable, while locking against motion in the opposite direction over the cable. The lock includes a lock body having an axial opening with the cable receivable therethrough, the body further defining three slots radiating outwardly from the opening with each of the slots having an outer wall tapered in the same direction. A disk is provided in each of the slots and is biased toward the direction of the taper of the slot outer wall. The outer periphery of each of the disks is beveled and/or has threads winding around the periphery.

Abstract: A security seal of the type which utilizes a stranded cable as a shackle. A seal body is provided with a pair of spaced apertures for receiving the end portions of a length of cable. A first cable end may be freely insertable into a shackle aperture, or may be staked therein so as to be non-removable, and the second cable end may be freely inserted into the second aperture, forming a cable loop at one end of the body forming a shackle. The second aperture leads to a cable channel which has a locking wheel and side walls retaining the wheel which cooperate to allow the cable to be inserted from said one end but lock the cable against retrograde movement after insertion.To prevent the release of the cable by twisting the cable to cause the cable to back out of the opening by reason of the thread-like effect of the cable strands, the wheel is provided with recesses around the peripheral surface which simulate a thread having the same pitch as that of the individual filaments of the cable strands.

Abstract: Tools for honing an exterior cylindrical reference surface and for honing an interior cylindrical surface concentric with but offset from the reference surface each have a cylindrical feed sleeve slidable axially along the outside of the tool body. As the sleeve is movable axially with respect to the tool body, a plurality of honing stones carried by the tool body moves radially with respect to the cylindrical surface being honed.

Abstract: Tools for honing an exterior cylindrical reference surface and for honing an interior cylindrical surface concentric with but offset from the reference surface each have a cylindrical feed sleeve slidable axially along the outside of the tool body. As the sleeve is movable axially with respect to the tool body, a plurality of honing stones carried by the tool body moves radially with respect to the cylindrical surface being honed.