Abstract: A lock, particularly a mortise lock, with bolt (9) and preferably catch (43) and a step-up lever (27) which acts on the bolt (9) and is equipped with a closure engagement opening (30) and is pivoted below the axis of rotation of the closure bit, for the closing of the bolt (9) in forward and backward direction while obtaining a lengthening of the closing stroke; in order to optimize the design, it is proposed that the path of movement of the closing engagement opening (30) extend approximately over a quarter-circle (V) of the cylindrical head (7) of a profiled-cylinder insertion opening (4).

Abstract: A locking mechanism is adapted to be attached to the inside surface (31) of a safe door (30) or the like. A key lock (12) with a bolt (18) secures to the inside of the door. A lock pin body (14) has a ledge (22) to which are secured lock pins (24) and depending from the ledge (22) is an actuator section (20) have vertical guide slots (48 and 50). A slide plate (16) is designed for movement on the face of actuator section (20). The slide plate (16) is biased against bolt (18) and has two slots (80 and 82). To unlock the safe door the lock bolt (18) is retracted by key or combination so that the slide plate latch follows under spring tension. A shaft extending from the door exterior through actuator section (20) and one of the guide slots (50) is engaged by one of the slots (80) of the slide plate latch and when rotated moves the body (14) down to disengage the lock pins (24) from their locking elements in the safe casing.

Abstract: A latch has a housing, a main bolt displaceable in the housing between a fully extended position projecting fully from the housing and a retracted position generally withdrawn into the housing, and a spring engaged between the main bolt and the housing for urging the main bolt with a predetermined spring force into the fully extended position. At least one secondary bolt is similarly displaceable relative to the housing between an extended and a retracted position. A lockout mechanism in the housing connected between the main bolt and the secondary bolt prevents the secondary bolt from being displaced from its withdrawn into its extended position except when the main bolt is in its fully extended position. The bolt is engageable in a keeper provided with a spring-loaded flap that inhibits the bolt from extending thereinto into its fully extended position and that normally retains it in an intermediate position.

Abstract: A flush door latch assembly having a housing with a recess defined therein and a paddle within the recess. Pulling on the paddle causes a cam having a helical cam face to cooperate with a cam follower to cause rotation of a pivot plate that retracts the plunger bolt and permits a door, hatch or the like having the present door latch assembly to be opened. The plunger bolt travels towards the same side of the latch assembly that the paddle travels towards when the plunger bolt is being retracted.

Abstract: A convertible top latching mechanism in which blade shaped tangs each have a recess formed with a sloping cam surface mating with a surface on an associated sliding operating rod to pull the tang into an opening in a locking housing. A vertically swingable handle moves respective operating links horizontally to each cause sliding movement of a connected operating rod by a pin and slot arrangement.

Abstract: Interlocking sections for portable floors and the like have a floor section (10) having interlocking members set in molded urethane (15) for connections along the edges of the floor sections (10). The interlocking members latch a male member (50) and a female member (70) fitting into recesses along the edges of the floor section (10) and are molded into place. The female locking member (70) has a central slot (85) receiving a flange (60) of the male locking member (50). Slots (81a, 81b) and (100a, 100b) and springs (90, 91) guide motion of pins (80a, 80b) which engage the flange (60). A release mechanism (120) actuated by an Allen key wrench has a cam member (121) which engages the springs (90, 91) to release the male locking member (50).

Abstract: In accordance with this invention, a releasable clamping apparatus (10) is constructed having an opening or slot (14) within which a lifting handle (28 or 30) is clamped between retaining latch portions (62, 64) and a clamp assembly (34). The latch portions (62, 64) are supported by openings (56, 58) and are retracted and extended into a slot (14) by spring biased linkage members (78, 80). These members (78, 80) are acted upon by similarly profiled cam lobes (116, 116a, 118, 118a). Dissimilarly profiled cam lobes (126, 128) of the cam member (110) act upon the clamp assembly (34), clamping a handle (28 or 30) against faces (68) of the latch portions (62, 64). The cam member (110) is coupled to a shaft (162) having an operating handle (32), with the shaft (32) also being provided with a detent assembly (202). This detent assembly (202) locks the handle (32) and the shaft (162) in "locked" positions (38 or 40) in the surface (198) of the apparatus (10), which clamps a handle (28 or 30) as described.

Abstract: This automatic double-action casement bolt comprises a pair of locking bars urged by resilient return means to a locking or bolting position in which the bars engage corresponding keepers, these bars being retracted from the keepers and moved to their unbolting position by a set of angular levers fulcrumed at their vertices on the casement bolt casing, each angular lever being connected through one arm to one of the sliding bars, each angular lever comprising, at the end of its other arm, a notch engageable by a catch of at least one control rod movable in a direction across the bars and formed integrally with an operating and control handle urged by other resilient means to its inoperative position, the notch of the other arm of each angular lever being formed in the edge of this arm so as to provide an open clearance of which the bottom constitutes a striking edge adapted, when the casement bolt is unbolted, to co-operate with the catch of the control rod.

Abstract: A latching system for securing the header of a convertible top frame to the windshield frame top piece including a pair of laterally spaced latching mechanisms operated by a central rotary handle, each mechanism having a striker bar reciprocated between a locking and release position by a crank actuated pull bar actuating the striker bar. The striker bar is received into a recess formed in a striker block fixed to the windshield frame top piece when the striker blade is moved to the locking position and these elements coact to draw the header down to be securely latched. As the striker bars are advanced, downwardly inclined guide tangs are inserted in an inclined pocket in the striker block. As the top frame is positioned atop the windshield frame, the tangs draw the header forward into proper forward alignment with the windshield frame top piece.

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 combined key and combination lock herein having a housing fixed to a door which mounts a linear key lock mechanism including spring biased pins or tumblers displaced and aligned by a coded key and a rotary combination lock mechanism including notched or keyed disks selectively aligned by rotation of a numerical dial via a disk transfer mechanism. Shaft and gear members intercouple the key lock mechanism with combination lock mechanism with combination lock mechanism for cooperatively operating a latch bolt to a lock position while a resilient bias device returns the latch bolt to an unlock position. A clutch mechanism selectively disengages the key lock mechanism from the combination lock mechanism so that the numerical dial on the inside of the door may be used solely for unlatching the bolt from its lock position. A releasable stop plunger is spring biased on the housing for disabling both the key lock mechanism and the combination lock mechanism to retain the bolt in its lock position.

Abstract: A lock set including a latchbolt, a deadbolt and control mechanism for both bolts. Each bolt is operable through either an external or an internal (i.e., relative to an associated door) actuator and the two internal actuators are interconnected through drive means so that operation of one to cause retraction of its respective bolt also causes retraction of the other bolt. The drive means includes a lost motion connection so that the latchbolt can be retracted and extended at will while the deadbolt remains in the retracted position. Locking means is operative to hold the external actuator of the latchbolt against operation and the deadbolt actuators are connected to that locking means so as to deactivate the locking means as the deadbolt is retracted. Both deadbolt actuators may be also connected to the locking means so as to activate that locking means when the deadbolt is moved towards its operative position.

Abstract: A latching mechanism for a pair of relatively slidable overlapping window panels includes a pair of opposed fixed support blocks with bearing surfaces engageable with the outside surfaces of the window panels. A first wedging block is floatingly mounted between the window panels and has a bearing surface engageable with the inside surface of one window panel and a slanted wedging surface spaced from the inside surface of the other window panel. A latching lever, movable between operative and inoperative positions, is secured to a second wedging block which has a wedging surface engageable with the wedging surface of the first wedging block and a bearing surface engageable with the inside surface of the other window panel. In the operative position of the lever, the engagement of the wedging surfaces of the wedging blocks engages the bearing surfaces of the wedging blocks with the inside surfaces of respective window panels to wedge the panels against the bearing surfaces of the support blocks.

Abstract: A locking mechanism for security doors such as safes. A mounting plate is provided for attachment to the inner surface of the door. A cylindrical activating member is mounted on a pin for rotation about an axis normal to the inner surface of the door. The activating member contains a plurality of activating fingers and mounting posts for connecting to locking pin actuating mechanisms directly or through linkages. A groove is provided in the periphery of the activating member. A pair of sliding members are mounted to the plate. One sliding member is positioned to slide into the groove to prevent rotation of the activating member. The second sliding member is adapted to slide into abutment with the first member to prevent sliding thereof. Standard lock mechanisms of the combination or pin tumbler type for use with a key are mounted to the plate and connected to the two sliding members to control their movement.

Abstract: Extending a dead bolt into a locked position turns a crank that releases a lock release plate from an unlocked position which in turn releases a slide. Upon its release, the slide responds to springs and forces a tooth into a notch of an actuator to lock a latch bolt. To unlock the latch bolt and the dead bolt, the dead bolt can be directly retracted, whereupon the crank engages the lock release plate to move it back to its unlocked position. The lock release plate during this travel picks up the slide and withdraws the tooth from the actuator, freeing the latch bolt assembly. When locked, the latch bolt and the dead bolt can be simultaneously unlocked by rotation of an inside operator which produces rotation of a double-lobed cam. One lobe of the cam moves the slide against the force of the springs sufficiently to clear the tooth from the actuator.

Abstract: A lock of the type having a plurality of locking bolts, having outer ends extending through openings in the door and inner ends located close to one another inside the door, and having a disc member, with arcuate slots and operating pins extending into the slots, and connecting with the inner ends of the bolts so that rotation of the disc in one direction will cause outward movement of the bolts, and rotation of the disc in the other direction will cause inward movement of the bolts, the lock having an operating lever swingably mounted adjacent the disc, and having one end swingable towards and away from it and connecting means between one end of the operating lever and a point on the disc spaced from its center of rotation, whereby swinging of the lever in one direction will be transmitted to the disc as a rotary movement in one direction, and swinging movement of the lever in the other direction will cause rotation of the disc in the other direction, and having means urging the lever in one direction, the l

Abstract: A door lock for attachment to a door which can move into a position adjacent to a jamb having a door strike. The lock includes a support member formed from a pair of spaced, generally parallel sides and an end wall interconnecting the sides. The sides and end wall are adapted to enclose a recess cut in the edge of the door. A shiftable lock bolt is carried between the sides and movable through an opening in the end wall and into locked relationship to the door strike when the door is in a closed position.

Abstract: A gang locking system for use in furniture cabinets having a plurality of doors or drawers comprises a lock tube which rotates to move a lock bar from a disengaged or open position to an engaged or locked position. Rotation of the lock tube is effected by a lock cam attached to a lock cylinder. The lock cam is a generally rod shaped member having two offsets to constitute a "Z" or zig-zag shape and projects through a pair of slots in the lock tube. The slots in the lock tube have a width only slightly greater than the diameter of the rod-like cam so as to reduce any slack or "play" between the lock cam and the lock tube.

Abstract: The latch comprises a case, containing a mechanism for actuating a half-turn bolt, and a head plate. At least one half-turn bolt is provided which is mounted to be movable in a direction parallel to the plane of the head plate of the latch.

Abstract: A panic device actuator for a door includes apparatus for unlatching a door mounted in a door frame and which includes one or more elements movable for retracting one or more door latches normally engaged with the door frame for positively locking the door. The panic actuator includes a relatively large panel having an enlarged outer face responsive to pressure applied at any area thereon for unlocking the door without a key. A mounting system is provided for supporting the panel on the door for controlled movement in a horizontal direction in continuous parallelism with the face of the door in a direction normal to the door face. A linkage is provided for interconnecting the panel and the door latching element(s) for moving the same to unlock the door latches in response to pressure movement of the panel on the door.

Abstract: A panic-proof lockset includes a deadbolt and a spring latch. An interior escutcheon supports a knob for operating the spring latch and a second knob for operating the deadbolt. A crank is coupled to the second knob and a slide member is adapted to turn the crank either selectively clockwise or counterclockwise to a position generally corresponding to the open position of the deadbolt. The slide is in tension when acting on the crank to turn the crank to a position generally corresponding to the open position of the deadbolt. A cam means is provided for moving the slide member in response to rotary motion of the knob whereby the deadbolt and the spring latch are simultaneously retracted by turning the knob. This construction enables a user to rotate one knob to simultaneously retract the deadbolt and the spring latch, thereby providing easy exit in a panic situation.

Abstract: A locking arrangement is described particularly for safe doors including a dial combination lock and a locking-bar mechanism having a plurality of locking bars movable from an extended locking position to a withdrawn unlocking position with respect to the door, the combination lock comprising a rotatably-mounted dial ring circumscribing the rotary dial and coupled to the locking bars to move them between their locking and unlocking positions, the combination lock including a lock-bolt effect when in its locking position to immobilize the locking bars and the dial ring at their locking positions.

Abstract: An interconnecting lock assembly having simultaneously actuated, multiple security deadbolts, the central one forming part of the main lock subassembly, and the others being operated from the main lock subassembly through special mechanism.

Abstract: A lock housing is adapted to be mounted at the free vertical edge of the inactive one of a pair of hinged doors that have adjacent vertical edges when both doors are closed. Slidably mounted in the housing is an axially movable shaft that extends vertically therefrom and has a normally retracted latch bolt mounted on its outer end. Operatively connected to the opposite end of the shaft is the inner end of a rocker arm, the central part of which is pivotally connected to the housing on a horizontal axis. A cam pivotally connected on a vertical axis to the housing normally projects from it for engagement by the free vertical edge of the active door for swinging the cam into the housing to swing the rocker arm vertically in order to project the latch bolt from a horizontal edge of the inactive door. The rocker arm is so mounted in the housing that it will be moved by the cam bodily away from the free edge of the door if the shaft cannot move, whereby the mechanism will not be damaged.

Abstract: A pick proof money box featuring an inverted lock held proximate to the top surface of the coin operated device which is serviced by the money box. In conjunction therewith a structured characterized key is used for opening the money box. An additional feature is the integral flanges used for holding interlocking wings that are operated to lock and unlock the money box.

Abstract: A lock cylinder with dual driver whereby an independent drive for the dead bolt mechanism and the door latch mechanism may be achieved with a single lock so as to provide withdrawal of both the latch bolt and the dead bolt by rotation of the key inserted into the lock cylinder. The drive for the dead bolt actuating mechanism is a conventional lost motion drive extending from the rear of the cylinder assembly. In addition, a cam is coupled to the cylinder assembly threaded cap so as to provide a direct drive thereto, with a cam being coupled to the latch mechanism so that both the dead bolt and the latch bolt are retracted upon rotation of a key in the lock.

Abstract: A flush bolt mechanism is disclosed for latching the inactive one of a pair of swinging doors, the mechanism functioning to latch the closed inactive door in response to closing of the other door. The latch mechanism includes a bolt that is driven home by cam and spring assemblies. A heat-responsive mechanism is provided for retaining the bolt in its extended position when the heat-responsive mechanism is subjected to a temperature and for a time sufficient to melt one of its components. A release mechanism may be provided for retracting the extended bolt in response to a force of preselected magnitude applied against the inside of the inactive door.

Abstract: A lock of the type enabling panic exit, there being a unique drive arrangement from the inner knob to the latch bolt mechanism and the security dead bolt mechanism. This drive utilizes a vertically reciprocable slide at the inside of the door panel, biased in one direction, and shiftable in the other direction by rotation of the inner knob for retraction of both the latch bolt and the security dead bolt. The drive is not responsive to tampering with the spindle elements, e.g. after forced removal of the outside knob. The lock can be employed on either left or right-hand door arrangements, directly, without requiring handing.

Abstract: Lock knob control mechanism comprising a three-piece cam assembly made up of a central cam actuator and two outside knob guides that may be selectively assembled to make the two knobs at opposite sides of a door active or inactive. An inactive knob guide makes its knob nonrotatable. An active knob guide cooperates with the central cam actuator and a locking pawl that prevents rotation of its knob but may be rendered inoperative electrically from a remote point by authorized personnel or mechanically in response to actuation of the key for that lock. The knob control also includes a retainer for securing a knob in place on the door which can be released only when the door is open, with a rose for the knob secured to the door by screws that are covered by the knob so that with the door closed there are no visible means for removing the knob.

Abstract: A lock mechanism with disengageable knob whereby the locking of the mechanism decouples the exterior knob from the latch mechanism to allow the free rotation thereof without damage or detriment to the mechanism. The exterior knob is coupled to a cam member which actuates a spring loaded slide plate, which in turn may pick up a lock mechanism actuating member dependent upon whether the interior lock actuator is in the locked or unlocked position.

Abstract: A rotatable cam disc has connected thereto linkage means for operating latch bolts. The cam disc has an arcuate cutout in the edge portion thereof defining a pair of end shoulders. A lock actuator plate is rotatable coaxially of the cam disc, and has secured thereto a post member movable within the cam disc cutout. Upon rotation of the lock plate actuator, the post member is engageable with an end shoulder of the cam disc for effecting rotation of the latter and actuation of the linkage means.