Abstract: A plastic casement windows operator has a plastic housing, a plastic sliding tounge and a plastic operating lever. The housing has a plastic main body and a plastic cover with complementary peripheral steps and peripheral energy directors and inward extending receivers and pins with energy directors for joining the cover and main body after the plastic sliding tounge and plastic operating lever are installed. The main body has an inward extending cylindrical bearing opening, which holds a cylindrical bearing integrally formed between an operating handle and an activator arm. An activator cylinder at a remote end of the arm moves in an oval groove in the sliding tounge. Wings on the tounge support opposite jugs and cylindrical guides which slide along inner guides on the cover and main body. An extension on the flat body tounge has a U-shaped opening for connecting a window linkage. Integral rims extend around the tounge, the U-shaped opening and the oval groove.

Abstract: An intruder-resistant latch useful for latching an aircraft flight deck door includes a damper for reducing noise while the door is being operated. The latch also includes a driver member having coated pins that reduce noise while the latch is in operation. The latch allows a flight deck door to be operated with minimal disturbance to a flight crew at work and/or crew members who may be resting. The latch is fabricated of ballistic impact-resistant material(s).

Abstract: A commercial vehicle, rail or bus vehicle entry door comprising: a grip recess; a door lock; a closing device; a latching mechanism having at least one latch; a lock carrier area; and a latching mechanism carrier; wherein the door lock is held on the door and the closing device acts upon the latching mechanism in order to move the at least one latch of the latching mechanism into a closed or opened position; and wherein the lock carrier area can be fastened on the door and which, together with the grip recess, forms a one-piece basic component on which the latching mechanism carrier carries the latching mechanism in a detachable and reversible manner for the optional mounting of the door lock for a door hung by one of a right side mounting and one of a left side mounting.

Abstract: In an apparatus for transmitting and method a movement which, as a function of a first, translational movement of a first coupling element to which a first component can be coupled, produces a translational movement of a second coupling element to which a second component can be coupled. The invention provides that the first and the second coupling element are connected to one another, such that they can move by a first rigid element, and in that the first coupling element is connected to a first lever which is mounted in a fixed position, and the second coupling element is connected to a second lever which is mounted in a fixed position. When a movement is being transmitted, the arrangement thus results in the capability first of all to retard the movement of the second component and later to accelerate it again in a corresponding manner, or vice versa.

Abstract: Anti-panic opening system for doors in which a lateral spring latch bolt (3) is actuated by means of an actuator assembly (10) including a first and a second movable actuating member (19, 20) designed to operate respectively in a first position in which the spring latch (3) protrudes from one side of a covering case (9) and in a second position, turned over by 180° relative to the first position, in which the spring latch (3) projects from the opposite side of the covering case (9).

Abstract: An intruder-resistant latch useful for latching an aircraft flight deck door includes a damper for reducing noise while the latch is in operation. The latch also includes a driver member having coated pins that reduce noise while the latch is in operation.

Abstract: A commercial vehicle, rail or bus vehicle entry door comprising: a grip recess; a door lock; a closing device; a latching mechanism having at least one latch; a lock carrier area; and a latching mechanism carrier; wherein the door lock is held on the door and the closing device acts upon the latching mechanism in order to move the at least one latch of the latching mechanism into a closed or opened position; and wherein the lock carrier area can be fastened on the door and which, together with the grip recess, forms a one-piece basic component on which the latching mechanism carrier carries the latching mechanism in a detachable and reversible manner for the optional mounting of the door lock for a door hung by one of a right side mounting and one of a left side mounting.

Abstract: A slide rod locking system, especially for locking the door of a switchgear cabinet, having a handle which is coupled to a control element by a control mechanism. The handle can move around a pivotal axis running perpendicular to the plane of the cabinet door. The control element can move in a parallel position relative to the plane of the cabinet door as a result of the movement of the handle. The slide rod locking system transmits powerful locking forces and at the same time can have a low-height design structure by arranging a lever on an articulated joint of the handle at a distance from the pivotal axis. The lever enables the force introduced into the handle to be transmitted to the control element and can modify its angle position with respect to the handle when moved.

Abstract: An actuator having a housing with a pivot opening therein. An actuator handle has a pivot pin extending from an end thereof for connecting the handle to a crank which includes a drive pin. The handle is assembled to the housing with the pivot pin extending through the pivot opening. A bushing may be disposed between the pivot pin and the pivot opening to take up tolerances between the parts and provide smooth handle rotation. The drive pin on the crank extends into a drive slot on a slider which translates within the housing to actuate a window locking mechanism. The drive slot is generally pear-shaped with, preferably symmetrical, opposed curved sidewalls along which the drive pin rides during rotation of the handle. The slider may further include a pair of fulcrum tabs disposed on a top thereof adjacent opposite sides of the drive slot for contacting a side surface of the crank during rotation of the handle to provide mechanical advantage at the handle.

Abstract: A Storm Shelter which meets FEMA criteria and can be assembled from the inside, within an existing room of a house. The shelter includes connection members which are not joined to one another at their ends, and panels having C-shaped channel members which have apertures for bolting to the connection members and to each other. A reinforced door formed of a panel having C-shaped channels on its sides is mounted to swing inwardly whereby providing entry and exit.

Abstract: A control mechanism for operating a latch. The control mechanism has a frame and a first arm attached to the frame for pivoting movement relative to the frame around a first axis between first and second positions. The first arm has a first edge and a first connecting portion. The first connecting portion is connectable to a latch to effect operation of the latch connected to the first connecting portion as an incident of the first arm moving from the first position into the second position. An actuator assembly is translatable relative to the frame between normal and actuating positions along a line that is transverse to the first axis. The actuator assembly engages the first edge and causes the first arm to move from the first position into the second position as an incident of the actuator assembly moving from the normal position into the actuating position.

Abstract: A casement window utilizes a multi-locking system having a pair of spaced keepers and a tie bar with a corresponding pair of rollers. In the locking action the rollers ride against the inclined and straight vertical surfaces of the keepers. A lifting block is located immediately above the lower roller when the locking system is in its locked condition. The lifting block prevents sagging and supports the sash in the locked condition. The provision of a lifting block in combination with the known multi-point locking system takes advantage of the locking system components to prevent sagging.

Abstract: An apparatus is disclosed for engaging locking elements to secure and lock a window sash to a window frame. A force transmitting device may be included with a guide forming a channel for an elongated tape transmits a horizontal movement provided by an operator mechanism into a vertical movement at a locking mechanism. The operator mechanism may include a removable bezel and a removable handle to facilitate access to the operator mechanism. A lockbar retainer of a compact construction guides a lockbar that actuates the locking elements.

Abstract: A holdback dog for a mortise lock including a holdback dog slidably mounted to a tab on the mortise lock locking link. The holdback dog is activated by first retracting the latchbolt using the inside handle and then unlocking the lock using either the key cylinder or the inside thumbturn. When the lock is unlocked, the locking link moves downward, placing a tab on the holdback dog slide in confronting engagement with a corresponding tab on the bolt slide. After the inside handle is released, the holdback dog tab holds the bolt slide, and therefor the latchbolt, in the retracted or "dogged" position. For normal or "undogged" operation, the slidable mounting of the holdback slide allows the bolt slide tab to engage the holdback dog tab and push the holdback dog slide out of the way, when the lock is unlocked and either handle is operated, thereby permitting normal operation.

Abstract: A movable wall comprises individual suspended door and/or wall elements. The individual elements are automatically locked both to one another and in the floor. For this purpose, in a base profile which is fastened to the underside of the elements, there is structure which effects an automatic locking of the elements to one another and in the floor, when two elements come together.

Abstract: A latch for a thrust reverser duct on an aircraft engine. The latch accomplishes work during both the closing stroke and the handle folding stroke. An outer handle 100 release trigger 112 can lock an outer handle 100 to an inner handle 60 to fix the relative position of the outer handle 100, the inner handle 60, an idler link 80, a rocker link 78 and a secondary link 75. While they are in fixed position, the parts act as a closing handle unit 125 during the closing stroke. Once the closing stroke is completed, the inner handle 60 is locked into a fixed position with hook arm 40 and a primary link 70. The outer handler release trigger 112 can then be disengaged and the secondary link 75, the rocker link 78 and the idler link 80 work to provide mechanical advantage during the folding of the outer handle 100.

Abstract: A locking device for doors, intended for connection between the dead-bolt of the door and the drive means of the lock including a hinged arm which is connected to the dead-bolt or its extension, a wheel or pin being arranged at the other end of the hinged arm and designed to tumble into a recess formed in a pivotable cam-disc, or to be disengaged from this recess by means of a link mechanism, whereupon in the latter position, the cam-disc is arranged to block the dead-bolt in the first position and upon tumbling into the recess to release it, the dead-bolt has an inclined surface designed so that upon pressure against the door, the bevelled surface assists in opening of the door.

Abstract: An apparatus is disclosed for progressively engaging a plurality of strikes with a corresponding plurality of receivers to secure and lock a window sash to a window frame. A force transmitting device may be included with a guide forming a channel for an elongated tape transmits a horizontal movement provided by an operator mechanism into a vertical movement at a locking mechanism. The operator mechanism may include a removable bezel and a removable handle to facilitate access to the operator mechanism.

Abstract: A non-handed actuator for window locks, including a base securable to the window frame, a handle secured to the base for pivoting about a first axis through an angle of approximately X degrees, an oppositely extending drive link secured for pivoting with the handle, and a connecting link securable to the lock control member of a window lock. The connecting link is pivotable relative to the drive link and includes a spacing member and a connecting member. The connecting member is securable to the lock control member and pivotable relative to the spacing member between limit positions approximately 180 degrees apart. Tabs on the spacing member abut the connecting member when the connecting member is at either of the limit positions, with the connecting link being pivotable relative to the drive link through an angle of approximately 2X degrees, where X is between 140 and 180.

Abstract: A safety door lock comprises follower member turned with an inside door knob or an outside door knob to move a latch bolt between the locking position and the unlocking position, and a clutch controlled by a push block between a first position where the outside door knob is coupled to the follower member and a second position where the outside door knob is disconnected from the follower member.

Abstract: An operator for a multi-point locking system for a casement window is provided. The operator includes a handle having two opposing legs that pass through side walls in the escutcheon thereby leaving the outer wall of the escutcheon intact. Due to a delay between movement of the handle and the first link which indirectly imparts movement of the handle to the tie bar, the handle can be rotated a full 180.degree. between the open and the closed positions while the first link is rotated through an angle of less than 180.degree.. As a result, the handle lies in a flat position with respect to the inside window frame surface in both the open and closed positions. Because of the handle design which employs two opposing legs disposed on opposite sides of the escutcheon, the operator can be used both on the right side and the left side of a window frame. The legs of the handle include inwardly extending shafts which are accommodated and supported by braces disposed on opposing sides of the base.

Abstract: A high security deadbolt assembly for a door which bolt has a housing extending from the edge of the door inwardly of the transverse bore between the door surface. A deadbolt is reciprocable in the housing and has a recess at its inner end. A cylindrical drive member is rotatively supported in the housing and is located with or is aligned with the deadbolt recess. The drive member carries a stop and is connected to the bolt by a linkage. When locked, a substantial portion of the length of the bolt remains engaged in the bolt housing and door so that attempts at forcing the bolt to the unlocked position are resisted by the stop which stop engages an internal surface of the bolt recess. The components are made from high strength materials and the deadbolt assembly may be retrofit to existing lock cylinders with a minimum of installation modifications.

Abstract: A window lock actuator including a link assembly rotatably mounted on the window jamb, the link assembly operably securable to control movement of a cam into and out of engagement with a keeper for locking a sash to a window jamb. A handle is detachably secured to the link assembly for rotation therewith, and has two legs cradling the link assembly when the handle is secured thereto. Two tabs on the link assembly and two recesses on opposite inner surfaces of the legs engage when the handle is secured to the link assembly. An escutcheon has a spring secured on one side, which spring is biased outwardly against one side of a jamb cavity to frictionally secure the escutcheon in the cavity.

Abstract: A dead bolt actuating assembly capable of moving a dead bolt between a retracted position and an extended position includes a latch arm having an end portion mounted on a rotating shaft. The latch arm is movable in response to the rotational movement of the shaft between a first position in which the dead bolt is in its retracted position and a second position in which the dead bolt is in its extended position. A link having an elongate body is pivotally connected to the opposite end portion of the latch arm at one end thereof. The link has a foot portion at the other end of the body extending in a generally perpendicular direction from the body. The foot portion is releasably engageable with the dead bolt for selectively moving the dead bolt from its retracted position to its extended position upon movement of the latch arm from its first position to its second position.

Abstract: According to the invention there is provided a security device for removable attachment to the bottom edge portion of a door to securely lock the door in a desired position. The device has a J-shaped bracket which confronts both sides of the door and extends underneath the door. An over-center linkage connected to a plunger and controlled by a handle provides a downward clamping effect engaging the floor surface. The plunger has an adjustable foot to accommodate various spacings between the door and floor surface. A supplemental sleeve on the plunger and a support post extending outwardly from the J-shaped bracket provides improved strength to the device.

Abstract: Disclosed herein is a latch mechanism which can be easily opened by disabled individuals. On one side of a door or panel is a knob which can be pushed to unlatch the door by urging a plunger from an extended position to a retracted position. Further pushing on the knob moves the door to an open position. On the other side of the door is a knob which can be pulled to unlatch the door. Further pulling on this knob moves the door to an open position. Each knob is substantially flush with the door so that the latch is not opened by accidental bumping, and so that, prior to installation, the door can be stacked with other like doors or panels for storage or transportation.

Abstract: A door locking system for attachment to an outwardly opening door which engages the door frame and which has a panic bar movable towards the door for disengaging the locking system. The locking device includes an outer sleeve fixedly mounted to the interior surface of the door and extending over one side of the door frame. An inner sleeve is provided within the outer sleeve which is pulled outwardly to a door frame engagement position, wherein the inner sleeve extends over the other side of the door frame to prevent the door from being opened. Movement of the panic bar towards the door causes the inner sleeve to retract into the outer sleeve, thereby allowing the door to be opened. A reset system is provided for automatically resetting the lock when the door is closed.

Abstract: A tractor-mounted loader includes a yoke member having legs joined by a bight member that carries a latch that is L-shaped in cross section and is pivotally mounted for movement between a closed position, wherein a first leg of the latch extends generally horizontally above and is engaged with a front-end weight bracket of the tractor carrying the loader, and an open position wherein the first leg is located in a generally upright position forwardly of the bracket. A control rod extends along one of the legs of the yoke member and has its forward end connected to the latch so that rearward and forward shifting of the rod respectively moves the latch to and from its closed position.

Abstract: A security lock assembly for mounting on a door to cooperate with at least one slot associated with either door frame side comprising a mountable and adjustable unit structural assembly including a pivotable handle, reversible locking bar structure alignable and cooperable with either door frame side associated slot, a counter register, and mechanical linkage structure connecting the pivotal handle with the locking structure and with the counter register.

Abstract: A toggle tilt latch for a tiltable window assembly which comprises a base adapted to be mounted to a window sash, a handle pivotally mounted to the base and a plunger operatively associated and movable with the handle. The plunger has a free end which protrudes from the base and engages the window frame when the window sash is in its normal vertical position. The plunger is retracted into the base by rotating the handle away from the base. This will allow the window sash to tilt inwardly relative to the window frame. The handle portion not only gives a ready visual indication of whether the plunger is retracted or not but also can be used as hand holds by a user to facilitate tilting of the window sash relative to the window frame.

Abstract: A clutch system for use in the door locking arrangement has a drive member. A latch acutating member and a permutation lock reset member are disposed on either side of the drive member. The drive member is operatively connected to the actuating means, for example a door knob or a lever handle, so that the drive member drives the latch actuating member, to retract the latch member of the door locking arrangement, when a correct combination has been inserted into the permutation lock of the door locking arrangement. When an incorrect combination has been inserted, the drive member drives the permutation lock reset member to reset the permutation lock. A linkage operatively connects both the latch operating member and the permutation lock reset member to the control shaft of the permutation lock.

Abstract: A latching structure defined by a mount, a handle pivotally mounted to the mount and linked with a latch pin slidably mounted in the mount. The linkage between the handle and the latch pin includes first parallel links pivotally mounted to the handle and pivotally mounted to the latch pin. Second links are pivotally mounted to the first links and to a spring block slidably mounted on the latch pin. A spring is placed in compression between a shoulder on the latch pin and the spring blocks. Consequently, the linkage mechanism operates to actuate the latch pin with the handle and create an overcenter mechanism to bias the entire mechanism to either a fully opened position or a fully closed position. A gasket is provided on a flange associated with the handle to seal the latch mechanism when the mechanism is strongly biased by the spring into the closed position.

Abstract: Latch mechanisms for latching two bodies in both tension and shear. A longitudinally extending latching bolt is associated with a latching assembly having an overcenter link mechanism controlled by a lever. The overcenter link mechanism includes a slot cooperating with a pin to provide two effective lengths to the fully extended linkage. A laterally extending notch provides a shoulder intermediate the ends of the slot to receive the pin. A keeper is slidably associated with a keeper assembly to engage the longitudinally extending bolt to prevent its withdrawal from the keeper assembly. Inclined surfaces between the latching bolt and the keeper function to engage or disengage the spring biased keeper with movement of the latching bolt in a preselected direction.

Abstract: A latch operating mechanism comprises a body part (10) for mounting on the frame of an openable glazed panel, a rotary handle (13) mounted on the body part by a spindle (28) a rack member (33) slidably mounted with respect to the body part and driven by a gear (30) within the housing which gear operably is connected to said handle. The rack member has a part (34) projecting from said body part for insertion through a slot in the frame and adapted to engage a part of an espanulette. The body part includes primary attachment locations (11) by which it is adapted to be secured to said frame, in which at least one primary attachment location is provided adjacent each end of the path of movement of the rack member.

Abstract: A deadbolt lock mechanism for a door comprises a lock cylinder secured to a lock housing and having a movable locking tab connected thereto, a lock bolt slidably mounted within a channel in the housing, a disk rotatably mounted within the housing having a transverse pin extending therefrom, and a lever having an opening therein within which a portion of the transverse pin is disposed, the lever being pivotally mounted at one end to the housing and connected at the other end to the lock bolt. Upon rotation of the locking tab, the disk is rotated through actuation of the pin, and the lever is pivoted by the transverse pin engaging the sides of the opening within the lever to slide the lock bolt into an extended locked position or a retracted unlocked position, the lock bolt being deadlocked in position by the detent feature created by the geometrical relationship between the transverse pin and the sides of the opening within the lever.

Abstract: A hatch assembly has an annular seat, a hatch cover and a plurality of latching units. Each latching unit has a slidably supported locking bolt movable generally radially inwardly with respect to the annular seat into a hatch cover locking position and generally radially outwardly into a hatch cover releasing position. In the hatch cover locking position at least one length portion of the locking bolt extends over the hatch cover for maintaining the hatch cover on the annular seat. Each latching unit further has a rotary crankshaft, an operating handle torque-transmittingly connected to the crankshaft for applying a locking torque and an opposite, releasing torque thereto; and a coupling mechanism for connecting the crankshaft with the locking bolt and for converting rotary motion of the crankshaft to linear motion of the locking bolt. The coupling mechanism has a spring for transmitting the locking torque from the crankshaft as a radially inwardly oriented resilient force to the locking bolt.

Abstract: An improved deadbolt lockset is provided in which one of two different backset distances is facilitated in a single latch assembly. At least one planar side plate coupled to a deadbolt extension is provided and is slidably contained within a hollow latch case. Movement of the side plate determines the distance from the face plate of the assembly to the axis of an actuating assembly. The latch case includes slots formed therein for positioning the actuating assembly and to allow movement of the side plates.

Abstract: A positive deadbolt locking system having a spring-biased deadbolt normally biased toward a retracted unlocked position or selectively and alternatively toward an overcenter locked position. The deadbolt is selectively in the fully unlocked or fully locked position of the locking system.

Abstract: The invention comprises the essential operating mechanism for a vertical latching assembly for a closure. It provides adjustment screws, accessibly disposed, externally of the closure (door), for adjusting the effective lengths of the elongate, latch bolt-actuating elements. A centercase, which is mounted externally of the door, has attachment blocks slidably coupled thereto. The blocks carry limbs, of the top and bottom bolt-actuating elements, or rod connectors, and the adjustment screws are threadedly engaged with the limbs for moving them, selectively and adjustably, axially of the centercase.

Abstract: An improved deadbolt lockset is provided in which one of two different backset distances is facilitated in a single latch assembly. At least one planar side plate coupled to a deadbolt extension is provided and is slidably contained within a hollow latch case. Movement of the side plate determines the distance from the face plate of the assembly to the axis of an actuating assembly. The latch case includes slots formed therein for positioning the actuating assembly and to allow movement of the side plates.

Abstract: The present invention pertains to a foldable bicycle including a main frame comprised of a front frame portion and a rear frame portion, a handlebar structure, a removably, adjustable seat structure, and two removable wheels. The two wheels include a front wheel and a rear wheel both of which are removably mounted to the bicycle frame by quick-release lock mechanisms. Upon removing the bicycles adjustable seat structure and the front wheel and rear wheel, the main frame may be folded by rotating the front frame portion oppositely with respect to the rear frame portion. Upon such folding, the two frame portions form a triangularly shaped unit which lies in three parallel planes.

Abstract: A rotatable crank hub has a crank arm slot pivotally connected to the rearward ends of a pair of driving levers, the forward ends of the driving levers being pivotally connected to a longitudinally slideable bolt. Rotation of the crank hub in opposite directions moves the bolt through the crank arm and driving levers forwardly to bolt extended position and rearwardly to bolt retracted position during which a transverse driving pin between the crank arm and driving lever rearward ends moves into forward vertical slots of the latch frame in the bolt extended position and into rearward vertical slots of the latch frame in bolt retracted position. A cam projection on the crank hub is slideably resiliently engaged at one side approaching and in bolt extended position and the other side approaching and in bolt retracted position by a forward leg of a U-shaped spring, a spring rearward leg being engaged with the latch frame.

Abstract: A latching mechanism for a window or door closure hingedly mounted on a fixed frame comprising a control cam and catch fixed to the hinged side of the frame, a driving rod slidably mounted on the closure, a dog mounted on one end of the driving rod for latchingly engaging the catch, and a cam follow mechanism connected to the opposite side of the driving rod for engaging the control cam so that the dog is moved by the driving rod in latching alignment with the catch when the closure is moved to the closed position relative to the frame.

Abstract: The present invention relates to a door handle lock and latch mechanism for a corrugated roller shutter door wherein the door handle is situated some distance up from the bottom of the door.The door handle and lock is situated in a corrugation which is open to the front face of the door and the latch mechanism is located in an adjacent corrugation(s) open to the rear face of the door. The latch mechanism attaches to the lock mechanism through an opening in either or both of the top or bottom wall of the corrugation in which the lock is situated.

Abstract: A lock in which a bolt is slidable by rotation of a pivoted handle connected to the bolt by a toggle link pin-connected to the bolt and handle. The handle is channel-shaped in cross section, and conceals and protects the bolt and toggle link in the locked position. The handle moves through 180.degree. between locked and unlocked positions. A key operated barrel lock has an exterior detent through which the bolt passes, in the release position of the barrel lock, and the bolt has a recess which receives the key-operated barrel lock in the locked position thereof.

Abstract: An adjustable keeper for pin latches, particularly suited for doors or panels mounted in flush relation to the external surface of an aircraft and thus subject to extreme air loads incidental to flying; one or more of the adjustable keepers being positioned for engagement by a corresponding pin latch, and including a screw assembly for adjusting the position of the keeper, the screw assembly having a tool engagable head exposed through a small perforation in the door or panel or adjacent thereto and thus accessible, when the door or panel is closed, to adjust the keeper so as to apply a preselected force to the pin latch which is transmitted to the door or panel to retain the door or panel in its flush condition.

Abstract: A pin latch structure primarily intended for aircraft and arranged to be flush mounted. The latch includes a reciprocable latch pin arranged to be received in a conventional latch socket. The latch pin is retracted or extended by a handle and trigger assembly.Connected to the latch pin is an overcenter biasing means urging the latch pin into its latch socket and the handle and trigger assembly toward its closed condition when the biasing means is in one direction past center; and urging the latch pin to its retracted position and the handle and trigger assembly to its open position when the biasing means is past center in the opposite direction.

Abstract: A dead bolt lock for doors, and the like, having an axial shaft extendable from the bolt and a bolt catch mounted in the door jamb adapted to be actuated by said shaft when the bolt is moved into extended position, and to engage and lock said bolt, until said shaft is retracted.

Abstract: Latching mechanism for releasably securing a closure panel or door member to an open side of a cabinet structure, in which latching means in the form of a latching bar is mounted on the outer surface of the closure for reciprocable rectilinear movements into and out of engagement with a plurality of aligned keeper members fixedly mounted on the cabinet, movement of the latching bar being in response to selective movements of a swingable handle having a linkage connected with the latching bar. Coacting camming surfaces at each of the keeper members, responsive to movement of the latching bar to its latching position, operate to generate high load forces of engagement between the closure and the cabinet structure, the closure thereby serving to structurally strengthen and rigidify the associated closed side of the cabinet structure.

Abstract: A bolt is reciprocally extended and retracted in a door by a latch driving mechanism operably connected to exterior and interior operator assemblies projecting from a mounting opening between faces of the door. A pair of inwardly dished reinforcing plates edge abut the door faces spanning the door opening and the exterior operator assembly is secured inwardly against its respective reinforcing plate by primary fastening screws engaged with a lock frame of the exterior operator assembly, through the latch driving mechanism and end secured in the opposite interior reinforcing plate.