Abstract: A door lock assembly is provided for secure multipoint locking of a door. The lock assembly comprises a main lock cartridge in combination with one or more remote secondary lock cartridges mounted at one side edge of a door, with the main lock cartridge having an actuator for manipulating a plurality of lock members. In one preferred form for use with a hinged or swinging door, the lock members comprise a plurality of latch bolts movable to a first extended position for normal door latching, or to a second and further extended position to function as multiple deadbolts. In an alternate preferred form for use with a sliding door, the lock members comprise headed latch pins for engaging keeper plates on the adjacent door jamb.

Abstract: Lock comprising a spring-latch and a bolt, the spring-latch being actuatable against the biasing action of a spring by means of an external lever (knob) or an internal lever (handle), the levers being rotationally rigidly coupled to respective coaxial hubs rotatably supported at the sides of an element for opening the spring-latch which is pivoted coaxially to the hubs and is intermediate thereto; the lock further comprises teeth for pulling the element defined on the hubs, the teeth being able to pull the element only in the direction for opening the spring-latch by actuating one of the levers, a spring for the elastic return of the hubs when the levers are released which acts on tabs of the hubs with the interposition of a block guided tangentially to the hubs; the block can be orientated and is shaped so as to provide abutment only to the tab of the hub to which the inner lever is rigidly coupled.

Abstract: A door latch having an adjustable backset position which allows it to be used in doors having either a 23/8" backset or a 23/4" backset. The latch includes a latch housing having two longitudinally spaced apart openings in communication with each other via a passageway. A cam is movable between the two openings through the passageway to adjust the backset. The cam cooperates with a retract slide which is engaged at its front end with the latch bolt to retract the latch bolt. The retract slide contains two sets of teeth at its back end, one set of teeth being engaged by the cam when it is in a first backset position and the second set of teeth being engaged by the cam when it is in a second backset position. The door latch also has a burglary deterrent feature comprising a dead bolt bar assembly which is in a retracted position when the door is closed and in an extended position when the door is open.

Abstract: The lock strike device is used with closable openings and is electrically connectable to an electrical monitoring circuit so that the presence or absence of a latch or deadbolt in the device can be automatically detected. The device includes a strike box having spaced sidewalls and a closed rear end. The first sidewall and adjacent portion of the rear end define an elongated cutaway portion through which an elongated blade trigger is spring biased into the strike space. The trigger is hinged at its front end to a box connected to the front of the sidewall. The rear end of the trigger is a head which urges a spring loaded lever arm of an electrical switch mounted on the exterior of the housing rear end into an open circuit position. A movable tab extends transversely into the space from the trigger. The tab senses the presence of a latch to provide a signal to an indicator.

Abstract: A locking device for a door (3) of a container that is pivotable around a hinge with a first locking part (5) arranged stationary on the container, and a coupling pin (7) connected to the door (3). The coupling pin acts together with the first locking part (5) in an interlocking manner. Such that a simple adjustment of the door (3) is possible, it is provided that the first locking part (5) is attached outside the container on a mounting plane (6) which is integral with the container in the over-lapping area of the door (3), the coupling pin (7) is stroke-changeably mounted in a pin holding device (25), and that the coupling pin (7) has a first adjustment device (27) on its top end pointing to the rocker arm (18), with which, by action of an adjusting tool, which can be inserted into the locking piston (13) from the rocker arm, the depth of engagement of the coupling pin (7) into the first locking part ( 5), which determines the play between the container and the door (3), is changeable.

Abstract: A remote control latch assembly includes a fork-bolt and detent style latch carried on the moveable deck lid of a vehicle. A key actuator is spaced from the latch and receives a standard key for unlatching the deck lid from a covered position over the trunk compartment. The key actuator includes a frame attached directly to the moveable deck lid, and a rotor supported in the frame and turned by the key. An involute track is formed in the frame having the rotor as its theoretical base cylinder. A core element operatively extends between the rotor and the latch. A conduit guidably surrounds the core element and includes a flange adjacent a terminal end portion thereof slideably received in the involute track. The angular orientation of the conduit is adjusted relative to the key actuator frame without relative lengthwise movement between the core element and the conduit by sliding the flange in the involute track.

Abstract: A safe and taper resistant safety lock system for the top of sliding glass doors and consists of a metal bracket fastened to the top edge of the door, positioned on the door with a screw which is normally found in each door, and then permanently fastened to the door with a second screw. A top, horizontal section, is formed by bending a first end of a metal plate, and extends over the top of the sliding door. The safety lock system is adjusted to reduce the gap between the top of the door and the top of the upper track to prevent lifting of the door out of the bottom track.

Abstract: A self-adjusting lock has a keeper stud with a base that is mounted in a recess in a keeper assembly so that it can slide in four directions. As the bevelled keeper stud is pressed into an opening in a latch assembly, the stud self-adjusts in the necessary direction to achieve alignment. A spring pressing the base against a surface causes the base, and so the keeper stud, to be frictionally held in its new position. The keeper stud has a series of spaced ratchet teeth, axially separated from one another, any of which can interengage with the latch mechanism. Thus, the lock is adjusted in this direction each time the lock is closed, resulting in a lock self-adjustable in six directions.

Abstract: A dogging mechanism for a bulkhead door on a ship, which uses a rotatable handle connected to a four bar parallel linkage to pivot a plurality of rollers over a plurality of wedge shaped lugs to tightly close the door and make it water tight when used with a double directional gasket.

Abstract: A locking mechanism for a closure such as a window comprises a body containing a gear wheel that is rotated by a handle. This rotation is converted to a locking action by actuating members which are provided with a helical thread which engages helical teeth on the gear wheel. Rotation in one sense throws the members out of the body to perform a locking action and reverse rotation retracts the members into the body in an unlocking action. The position of the members can be altered simply by screwing the members into and out of the body.

Abstract: A magnetic catch comprises a magnetic assembly and a catch plate. The magnetic assembly includes a magnet flanked by two pole shoes. The magnet and pole shoes are biassed against a casing portion by an abutment feature provided integrally on a support member which is retained by resilient clips extending from the casing. The localized nature of the abutment feature provides a gap between the pole plates and the support member. This gap allows the pole members to move relative to the magnet so that they can align themselves with the catch plate to provide optimal physical contact therewith. Nevertheless, the biasing arrangement holds the magnet in a fixed position which helps to prevent the magnet and pole shoes from rattling.

Abstract: A door lock mechanism that allows either tool operable locking or padlocking of a handle and escutcheon assembly. The lock includes a tool operable insert inset in the lock base and adapted to receive any one of number of standard tools. Such tools are used in industry to restrict access to specific groups of craft persons. For applications desiring padlock capability, the tool operable access can be disabled. A pawl coupled to the tool operable insert, is operable between first and second positions. When the pawl is biassed toward the first position, corresponding to the locked state, it will engage the latch, thereby effecting locking, whenever the latch is brought to the latched position, by turning the handle to a vertical position, and the use of the tool operable insert is enabled for disengaging the pawl from the latch and the pawl. When the pawl is biassed toward the second position the pawl is prevented from engaging the latch, thus disabling the tool operable lock to provide for padlocking.

Abstract: A door latch having an adjustable backset position which allows it to be used in doors having either a 23/8" backset or a 23/4" backset. The latch includes a latch housing having a pair of aligned openings comprising two longitudinally spaced apart openings in communication with each other via a relatively narrow passageway. A cam is movable between the two openings through the passageway to adjust the backset. The cam cooperates with a retract slide which is engaged at its front end with the latch bolt to retract the latch bolt. The retract slide contains two sets of teeth at its back end, one set of teeth being engaged by the cam when it is in a first backset position and the second set of teeth being engaged by the cam when it is in a second backset position.

Abstract: A security door bar adapted to prevent the opening of a door by intruders and comprising a resilient metal bar which carries a polygon shaped block through which pressure is applied to the door. The metal bar being adjustable to the width of the door and the polygon shaped block being rotatable on the bar to adjust for door thickness and amount of pressure to be applied to the door. The metal bar is adapted to the door by use of a metal screw hook which is screwed into a wall stud on the knob side of the door and pressure is applied to the door from the metal bar through the polygon block and a pressure distribution sheet attached to the door.

Abstract: A concealed exit device for mounting vertically within a door to cooperate with a threshold latch plate and an overhead latch plate in a door opening for latching and unlatching the door within the door opening. The concealed exit device includes a manually actuated member for mounting in a central portion of the door for manual movement from one side of the door between a normally biased position and an actuated position, upper and lower latching mechanisms for mounting in upper and lower ends of the door for movement between extended latched positions in cooperating latched relation with the overhead and threshold latch plates respectively and retracted unlatched positions out of cooperating relation with the latch plates.

Abstract: A door locking mechanism for use on the inside of a pair of outswinging doors mounted in the opening of a frame in which the doors are hinged at opposite edges and having free edges adjacent each other and free to be moved between the opening and closing of the doors. The mechanism comprises extended members U-shaped in cross section mounted on the doors. One end terminates substantially flush with the free edge of each door. A latch plate is mounted for sliding movement within one U-shaped member. The latch plate is provided with a handle extending through a slot in the U-shaped member which can be employed to move the latch plate. The latch plate is moved between a closed position wherein the latch plate extends past the free edges of the doors to overlap the second door and an open position where the plate is entirely within the width of the first door. A lever is provided to clamp or unclamp the latch plate in either the open or closed positions.

Abstract: An adjustable latch assembly used in a lever lock comprises a shell, a shelf, a rotator, an actuating arm, a positioning and pulling assembly, and a bolt. The shell is attachable to a door. The shelf has a first position and a second position within the shell. The rotator is mountable on the shelf. The actuating arm co-operates with the rotator, so as to be actuated by the rotator when the rotator rotates. The positioning and pulling assembly positions the shelf in the first position or the second position and pulls the bolt inward. The adjustable latch assembly has a first backset when the shelf is at the first position and a second backset when shelf is at a second position.

Abstract: A cylindrical lock assembly (20) includes an inside subassembly (22) and an outside subassembly (24) which are assembled with a door (326). Each subassembly (22,24) includes a rose liner (26,38), a return spring cassette (28,40), a rose (30,42), a lever (32,46) and a lever insert (34,48). The inside subassembly (22) also includes a turn button (36) and the outside subassembly (24) includes a cylinder lock (44).The lever inserts (34,48) are each formed from a plastic material with a first element (400) and a second element (414) which are integrally joined by a plastic ribbon (426). In one instance, the first and second elements (400,414) are separated from the ribbon (426) and are joined to form structure which fills voids in the exterior of the levers (32,46). The voids are necessary for the insertion of the cylinder lock (44) which contains, for example, six tumbler pins. In another instance, only the first element (400) is used where the cylinder lock (44) contains, for example, seven tumbler pins.

Abstract: A universal connector is provided which is especially well suited for connecting the free ends of gates of a double gate. The connector includes a yoke rotatably attached to a base portion which may be a flat plate for attachment to a post by bolts or the flat plate may be bent into a second yoke wherein the two yokes are rotatably connected in a back to back relationship for interconnecting a pair of items such as the free ends of gates in a double gate.

Abstract: A cylindrical lock assembly (20) includes an inside subassembly (22) and an outside subassemlby (24) which are assembled with a door (326). Each subassembly (22,24) includes a rose liner (26,38), a return spring cassette (28,40), a rose (30,42), a lever (32,46) and a lever insert (34,48). The inside subassembly (22) also includes a turn button (36) and the outside subassembly (24) includes a cylinder lock (44).A pair of sleeves (168,170) extend from opposite sides of the chassis (50) and are each formed with three slots which facilitate mounting of the levers (32,46) and the cylinder lock (44) thereon.

Abstract: An armature assembly for use with an electromagnetic door holder has a ball stud pivotably connected at one end to a mounting bracket and at the other end to an armature plate. The mounting bracket is mounted on a first structural member, a mounting body is secured to the bracket and connects with the ball stud, and the armature plate coacts with and is held against an electromagnet which is mounted on a second structural member. The pivotable attachments at both ends of the ball stud provide an almost universal adjustability to the armature assembly and, thus, accomodate complex misalignments between the first and second structural surfaces.

Abstract: A door security system has a floor contacting foot pivoted on a prop itself pivoted on a locking system adjustably attached to a door support removably mountable on a door by a detachable bracket. The system is simple to install. A door so equipped can be opened a slit for conversation but insufficient for entry, then locked in position. The bracket has opposed spaced apart face walls joined by edge wall to receive a door corner, the door support is attachable to the bracket by a wingnut. The hand releasable locking system has saw teeth engaging saw teeth on the door support. Prop mountings on both foot and locking system restrict the angle of the prop to the floor. This angle may be from 60 to 70, and conveniently is 65. The device may be installed permanently or temporarily, on a door, it is far more effective than a door chain. Both bracket and door support can be permanently fastened to the door by screws.

Abstract: A latching mechanism for the split-ring tire cover of an automotive vehicle. The latching mechanism includes a latch handle pivotally connected to a hooked tongue that is engageable with one end of the tire cover to releasably secure the two ends of the tire cover together. A key-operated lock is interposed between the latch handle and the tongue.

Abstract: A striker plate assembly having a striker plate attachable to a door jamb and provided with a curved impact segment projecting forwardly of the jamb and a central opening for insertably receiving a sliding bolt. The striker plate further includes a mounting flange normal to the plate with securement slots and a pair of apertures located at the joint of the flange and the plate. A pair of adjustment plates form fit to a jamb shoulder and include spikes for penetrating the jamb and jamb shoulder for securement of the assembly. Recessed fastener openings are provided in the plates for positive fastening of the plates to the door jamb. The adjustment plates include angular cross-over slots for fastening adjustment to the width of the jamb shoulder.

Abstract: A door handle assembly including an escutcheon plate, a handle secured to the outer face of the escutcheon plate, and a turn lever mounted on the outer face of the escutcheon plate. The turn lever includes an actuator portion which passes through a transverse slot in the escutcheon plate and through an actuator hole in the door for access to the actuator of a latch assembly so as to move the latch assembly between latched and unlatched positions in response to turning of the turn lever.

Abstract: A single handleset 10 with an adjustable retracting mechanism 11 includes a handle 20 and thumbpiece 32 which operates a rack 48. A pinion 70 is in mesh engagement with rack 48 at all times. A spindle 84 is connectable to pinion 70 in either of two positions determined by the righthand or lefthand orientation of a door 18 to which assembly 10 is mounted. Spindle 84 is adjustable without decoupling pinion 70 from rack 48 to insure proper orientation of the spindle relative to the pinion for effective operation of a latchbolt assembly 140.A double handleset 210 with the adjustable latch retracting mechanism 11 includes a pair of handle units 212 and 234 and also provides the versatility of adjusting spindle 84 independently of pinions 70 to accommodate either a righthand or lefthand orientation.

Abstract: A gate latch, using neither gravity nor springs, is forceably opened and closed from either side of the gate by a handled lever that passes between the gate and gate post an into an arcuate cam slot. When the lever is lifted, it forces open the latch to eject a gate pin and, when lowered, forces the latch to close on the gate pin.

Abstract: A protective door device for anti-aircraft installations and nuclear power stations has a door opening in a wall preferably designed as a concrete wall. The opening is surrounded on all sides by the wall and can be closed by means of a protective door which overlaps the wall. The protective door has a central lock and a bowl-shaped metal door leaf reinforced by ribs, from which one-piece support arms project. Two bearing bolts on which two door hinges are mounted are inserted in the wall near the door opening and pockets for adjustable engagement of lock bails of the central lock are arranged in the intrados of the door opening.

Abstract: A self attaching strike plate (20) with removable anchor teeth (34) for doors (46) with spring bolt latches (54). The anchor teeth (34) by repeatedly bending can be completely removed. Adaptable to a variety of door conditions including wood to metal door jambs (60). Easily installed and removed by tapping surface plate (22) and removed by prying off. Adhesive (44) may be substituted for screws (32).

Abstract: A solenoid actuated self-compensating latching apparatus adapted for use in motor vehicle applications. The latching appartus includes a solenoid assembly having an armature movable between a first and second position. A latch mechanism is secured to the solenoid assembly and includes a latch member coupled to the armature for lockingly engaging a striker when the armature is in one position and releasably disengaging the striker when the armature is in the other position. The latch mechanism is self-compensating to align the latch member relative to the striker, prior to engagement therewith, to compensate for alignment variation between the latch member and the striker.

Abstract: A motor-vehicle door latch for mounting in a door having an outside panel has a housing fixed in the door, a latching fork pivotal in the housing, and a latching pawl pivotal in the housing and engageable with the fork. An outside door handle is displaceable on the outside door panel between an outer actuating position and an inner rest position. A linkage includes an outside-handle lever coupled to the outside door handle and movable thereby, a latch lever pivoted on the outside-handle lever and engageable with the pawl to operate same and release the fork, and a releasable coupler including a bolt for coupling the outside-handle and latch levers together for joint pivoting and for decoupling them for relative pivoting. Thus when these levers are decoupled the outside-handle lever can move between an operating position and an installation position.

Abstract: A remote latching mechanism comprises connecting member, preferably a cylindrical rod, an actutor assembly for rotating the connecting member about its longitudinal axis, and a latch assembly connected to the connecting member for movement between latched and unlatched conditions in response to the rotation of the connecting member. The latch assembly comprises a crank, at least one link member having over-center action, a pawl support and a pawl, all inter-connected so that upon rotation of the crank, the pawl is pivoted and slid relative to a latch housing between latched and unlatched positions. The actuator assembly comprises an actuator fixedly connected to the connecting member. In one embodiment, the actuator comprises a pivotable handle. In the other embodiments, the actuator comprises a substantially cylindrical member to which torque is applied by a tool or a lever to rotate the connecting member.

Abstract: A remotely actuated solenoid latch apparatus adapted for use in motor vehicle applications is disclosed. The solenoid latch apparatus includes a solenoid having an armature movable between a first position displaced from a pole piece to define a working air gap therebetween to a second position attracted toward the pole piece. A solenoid winding encircles the pole piece and the armature for attracting the armature toward the pole piece upon energization thereof. A latch member is associated with the movable armature for lockingly engaging a striker bar when the armature is in one position and releasably disengaging the striker bar when the armature is in the other position. The present invention is self-compensating to align the latch member relative to the striker bar, prior to engagement therewith, to compensate for alignment variation between the latch member and the striker bar.

Abstract: Vertical concealed rods are attached to the respective ends of the slider of an exit device by adjustment bolts and bracket assemblies. Each bracket assembly is held adjacent the head of its adjustment bolt by a retainer. Once the cover of the latch mechanism is removed, the bolts are readily accessible from the outside of the door.

Abstract: A tubular latch housing having a plurality of projections on its outer periphery for keeping a ring fitted around said housing between said projections and a face plate combined at the outer end of said housing so that said housing can rotate to adjust its position for combining with a lock set even after said housing is mounted in a door.

Abstract: This mechanism (3) for linking an opening handle (4) to a lock pin (2) comprises a calliper (6) interacting with the handle (4), a rod (11) engaged so as to slide in only one direction in a sleeve (13) at the lower end of which the pin (2) is inserted; the sleeve (13) is equipped with a ring (19) which is slidably fitted around the sleeve and can be moved during set-up from a first position at the base of the flexible arms (14) to a second position situated at the ends of the arms nearest the calliper (6), in which position the ring (19) clamps the arms (14) around the rack (12) and is held in place by suitable means (23, 24). The ring (19) prevents the arms (14) and their inner teeth from coming away at all from the rack (12), thereby guaranteeing the total irreversibility of the mechanism in both directions of the link.

Abstract: An improved latch with preload indicator for securing together a pair of hinged cowlings surrounding an aircraft engine. The latch comprises a hook which engages a keeper attached to one of the cowlings, a handle attached to the other cowling and mounted with the hook along a common pivot, and a hook-handle spreader spring with a free end that moves relative to and extends through the handle to provide indication of latch preload. The visual indication of the preload eliminates the need for maintenance personnel to measure the handle closing force during installation, rigging or maintenance of the cowlings.

Abstract: A wedge shaped security door block having a door engaging side raked at a low angle with respect to a planar floor engaging side. A device is provided at the apex end of the wedge for manually and selectively truncating the wedge so that it can be used with doors of different thicknesses and doors hung at different spacings between the lower edge of the door and the floor. When the floor is uncarpeted, the door engaging side is preferably inclined at an angle between about 5 and 7 degrees with respect to the floor engaging side and when the floor is carpeted, the angle is preferably between about 7 and 10 degrees to prevent the lower edge of the door from passing over the wedge too far, or passing over it entirely.

Abstract: A door opening limiting bar having an elongated rigid member mountable between a first bracket attached to the inner face of a hinged door and a second bracket attached to a wall confronting the inner face of the door at approximately the same height as the first bracket and with the bar extending diagonally between the brackets. The bar is axially expandable and contractable for adjusting the position of the door relative to its frame.

Abstract: An electromagnetic surface lock comprising an electromagnetic adapted to be mounted to a door frame and an armature adapted to be mounted to a door and attracted to the electromagnet and lock the door in the frame, said armature comprising first and second plates of magnetic flux permeable material, the plates being secured together in surface contact, a device for mounting said armature to a door and having headed portion with a socket therein and, having a shank portion adapted to be received in and secured to the door, a recess is defined in the first of the plates, and receives the headed portion, the second plate has an opening therein for receiving the shank portion whereby the headed portion is captured between the plates, and a small passage is defined through the first plate to the socket in the headed portion for receiving a turning tool whereby the headed device may secure the armature to the door, the second plate greatly increasing the rigidity of the armature.

Abstract: A shackle seal housing has a separate plug that is snugly received in its entirety within one end of the housing, the housing having an inwardly extending circumferential ridge and the plug having a groove in its outer wall which receives the ridge when the plug is seated. The inner end of the plug has a cavity which snugly receives the shackle end thereby preventing inward compression of the plug when it is seated within the housing. The housing may have a non-circular configuration, to prevent twisting of the shackle within the housing. The shackle strap may have a variable width border provided by an opening to permit selection of its breaking strength.

Abstract: A hatch assembly that includes a hatch cover adapted to seal a hatch opening defined by a raised combing of a deck. A locking arm having a hinge end and a latch and extends across and beyond the hatch, and has a hatch clip adjacent each end to floatingly connected the locking arm to the hatch cover. A latch is mounted to pivot arms to engage latch engagement structure on the locking arm with a force dependent on the height of the pivot arms from the deck. An adjustment member includes tool bearing surfaces to enhance the rotation of the adjustment member and thereby adjust the force. A latch handle includes a stiffening member to strengthen the handle against forces tending to rotate the latch handle about the pivot arms. A pair of hinge bracket walls are mounted to the deck and define a hinge bracket space between them. A stop is affixed to the bracket walls to prevent the hatch cover from contacting the horizontal deck surface.

Abstract: Door lock control apparatus includes a rotary input part adapted to be rotated by a handle or knob; a rotary output part adapted to operate a lock mechanism; and structure coupling the input part to the output part, including a pinion gear coupled to the output part; a member having first and second lengthwise extending racks thereon and bodily shiftable between a first position in which the first rack engages the pinion, and a second position in which the second rack engages the pinion, that member also being bodily movable in the length direction of the racks; and a mechanism operatively coupled between the input part and the member to have that member in the length direction in response to rotation of the input part; the racks located to alternately engage the pinion in such first and second positions so that in the member's first position the output part is rotated clockwise when the input part is rotated clockwise, and in the member's second position the output part is rotated counterclockwise when the i

Abstract: A dual backset latch bolt assembly includes at least one pair of cam members mounted on at least one side plate of a latch housing. The latch bolt assembly is provided with positioning holes and engaging notches so that the assembly can be used in combination with a lock having either positioning female screws or guide plates for attachment. The latch bolt assembly may be arranged such that two pairs of cam members are mounted respectively on two side plates of the housing, thereby permitting the latch assembly to cooperate with a lock having either a single rotary spindle or two rotary spindles which are respectively associated with two parts of the lock operable from the outside and inside of a door.

Abstract: A security latch assembly for a door and window in which the door security latch assembly configuration will prevent the door from an unauthorized opening when the assembly is in a secured locked position. The window security latch assembly configuration will prevent the upper and lower sashes of a window from an unauthorized opening when the assembly is in a second locked position.

Abstract: A T-handle latch in which a housing is designed for reception in an opening of an item to be latched. A shank of a handle is rotationally disposed in the housing, and an actuating member of the latch is fixed on the end of the shank. The shank may be received in a shank-receiving opening of the actuating member, the opening being elongate so that the actuating member may be fixed in any of a plurality of discrete transverse positions with respect to the shank. Keying elements on the shank and in the shank-receiving opening define the discrete positions and are useful in achieving initial adjustment of the latch, in preventing the latch from slipping out of adjustment during use, and in helping to prevent relative rotation of the shank and the actuating member. Return springs bias the handle toward a neutral, home position. The return springs may be housed completely within the body of the latch, thereby protecting them from accidential damage, dislodging or loss during use, installation or shipping.

Abstract: An externally accessible, clutching adjustable latching mechanism is provided having an adjusting assembly which permits the latching mechanism to be mounted over a greater range of depths than conventional adjusting mechanisms and controls the amount of pre-load which is possible by the adjustment feature, and protects the aircraft skin from being damaged during such adjustment. An internal clutching mechanism insures the accomplishment of proper, minimum preload on the structures connected by the latching mechanism. The adjusting assembly includes a two-part driver (14a, 14b) and a drive unit (15) which translates rotational movement of the driver into linear movement of a connecting element (10), allowing infinitely small, non-incremental adjustment of the position of the connecting element (10) relative to the structures joined by the mechanism.

Abstract: A pivoting adjustment screw for mounting the bolt of a latch to provide vibrational damping along with increasing preload as the contact point of the adjustment screw to the mating structure shifts in a shock or vibrational environment. The adjustment screw includes a pivoting portion which permits the screw to pivot which allows a rotating rather than a scraping or abrading movement in response to the relative movement between the elements being connected.

Abstract: An adjustable deadlatch for a lockset for adjusting to either of two backset positions. First and second cylindrical members are located in a telescopic arrangement for allowing a longitudinal telescopic adjustment between the cylindrical members. First longitudinal adjustment structure is interconnected between the cylindrical members and includes a first vertical slot and a first pin member located within the first vertical slot and includes a first rotatable member supporting the first pin member at a radial position. A deadbolt, located within the first cylindrical member includes a longitudinal opening. An actuating member includes a longitudinal portion located within the longitudinal opening. Second longitudinal adjusting structure is coupled between the deadbolt and the actuating member and includes a second vertical slot and a second pin member received within the second vertical slot and mounted on a second rotatable member at a radial position.

Abstract: An elongated bolt extension member is coupled to the bolt head of a door latch, and a pivotally mounted latch cam engages the elongated bolt extension member to slide the latch into and out of its retracted position. The elongated bolt extension member has a top surface with two spaced openings corresponding to two different backset distances. The latch cam extends into one or the other of the openings to adjust the backset distance.