Abstract: A glove box and utility hook assembly for a motor vehicle. The assembly includes a tether having one end secured to a hook member and another end secured to a portion defining a glove box, such that the hook member is moveable between a stowed position located within the glove box and a use position located outside of the glove box. The hook member includes a lip portion for retaining and suspending items within a vehicle.

Abstract: An opening device with a handle for a door of an electric household appliance, which door rotates about a hinge axis between an open position, and a closed position wherein the door rests, with the interposition of a peripheral seal, against a front edge of a door opening of the electric household appliance; the device includes: a support fixed to the door, close to the front edge of the door opening; the handle, which is fitted to the support to rock in opposition to elastic elements, so as to be positioned, in use, to the front of the door and at a predetermined distance from an outer surface of the door; and elements which, in use, exert thrust on the front edge of the door opening to detach the door from the door opening and rotate it into the open position, when the handle is rotated towards the outer surface of the door, so as to open the door by pushing on the handle; an optional spring completes rotation of the door about the hinge axis.

Abstract: A latch handle assembly includes a bezel disposed within a panel and a handle having a center portion, a first grip portion, and a second grip portion. The center portion is disposed between the first grip portion and the second grip portion. The center portion pivotally mounts the handle within the bezel.

Abstract: In a door panel with an integrated door stopper disposed in a door rabbet wherein the door stopper comprises a stopper bolt movably disposed in the rabbet and a compression spring for biasing the door stopper in frictional contact with an underlying floor and an operating mechanism disposed in the door panel and including an operating member movable between two rest positions and connected to the stopper bolt for moving the stopper bolt out of contact with the under laying floor against the force of the compression spring, the operating structure for the stopper bolt extends from a housing accommodating the operating structure in such a way that no space is needed adjacent the side walls of the housing.

Abstract: A mechanical assist apparatus is provided for biasing an access cover relative to a housing. The mechanical assist apparatus comprises a user-engageable lever, an arm rotatably coupled to the user-engageable lever at a first joint, and a sled rotatably coupled to the arm at a second joint offset from the first joint, wherein the sled comprises a biasing member.

Abstract: A kit for selectively constructing a system for releasably maintaining a movable closure element in a predetermined position relative to a frame upon which the closure element is movably mounted. The kit includes a base assembly, a first mechanism that is operably attachable to the base assembly to define a first system having a first configuration that is operable in a first manner, and a second mechanism that is operably attachable to the base assembly to define a second system having a second configuration that is operable in a second manner that is different than the first manner. The first and second mechanisms are interchangeably operably attachable to the base assembly, one in place of the other, to allow a selection to be made by an assembler as to a desired configuration and manner of operation of a system.

Abstract: A door locking device including: a door being mounted to an object to be capable of opening and closing a storage space of the object; a door handle being provided on a external surface of the door; a rotating bracket being mounted inside of the door to combine with a shaft of the door handle and thereby rotate together with the shaft; a rotating latch being provided between the door and the rotating bracket to rotate with the door handle, and detachably coupled with the rotating bracket along an axial direction of the shaft; a lock assembly being provided inside of the door to selectively restrain a rotation of the rotating latch; and a locking pin member being provided inside of the door to interoperate with the rotating latch, and selectively bind the door to the object according to a rotation manipulation of the door handle is provided.

Abstract: Latch assembly of a keeper structure and a latch structure has a frame a frame recess, a guide pin received in said frame recess for oscillating rotation, the guide pin having a handle tab for rotating the guide pin and a dog projecting from said guide pin. A latch tongue is slidably mounted in a latch tongue guide and has a tongue dog cooperating structure for advancing and retracting the latch tongue responsive to rotation of the dog on the guide pin. The guide pin is spring biased to project the latch tongue toward the latch structure. The dog cooperating structure and dog are relatively proportioned to permit rearward movement of the latch tongue without commensurately moving the handle tab upon displacing engagement of the keeper structure and the latch tongue but to move the handle tab and latch tongue together in forward movement of the latch tongue into keeper structure latching engagement.

Abstract: A load floor latch that can be installed in a vehicle floor for storage having a biasing means for actuation but allows slam action closure. The latch comprises an actuation assembly that is attached to a housing or lid and is designed to accommodate a pawl member for engaging and disengaging a frame. The flat lid and out-of-way handle allow extra room within the vehicle and prevent damage or breakage of the latch.

Abstract: A locking device of a cover for closing an opening in a wall of a storing compartment. The locking device comprises a casing disposed within said cover, a handle pivotally mounted in said casing so as to be manually pivotal between an extended position and a retracted position in order to allow for lifting said cover from said opening and, respectively, inserting said cover into said opening, a locking bar slidably mounted in said casing so as to be displaceable between a locking position for locking said cover to said wall and an unlocking position for releasing said cover, a return spring for biasing said locking bar from said unlocking position towards said locking position, and latching means arranged to arrest said locking bar in said unlocking position when said cover has been lifted from said opening, and to release said cover when said cover has been inserted into said opening.

Abstract: In this side lock apparatus, a opening and closing member is fixed to a support unit so that the opening and closing member can be opened and closed, left and right latches being movably held on the opening and closing member, the left and right latches being urged by a pressure of a spring toward a lock hole formed in the support unit, a free end portion of the latches being moved back from the lock hole in the support member against the spring means by an operation of the operating handle, wherein the left and right latches are operatively connected together via a link lever supported rotatably via a shaft on the opening and closing member, the operating handle being provided with an operating portion engageable with the latch, at least one latch being provided with two contact surfaces engageable with the operating portion of the operating handle.

Abstract: An integrated mortise lock trim mechanism is provided for mounting on the surface of a door and has a handle turning a spindle that extends into the door to operate a lock mechanism mounted therein. The trim assembly is pre-assembled and has a retracting spindle that extends between the trim mechanism and the lock mechanism to accommodate varying door thicknesses. The preferred assembly utilizes a cover plate, spring and mounting plate assembly holding a pair of alignment through bolts. This assembly is fit onto a door handle and secured to the door handle by a cap nut. An elongated spring is disposed in the handle and is secured to a spindle which axially extends from the handle. The spindle is automatically retracted or extended to optimally fit into the hub of a mortise lock.

Abstract: A slam latch and strike assembly for latching together a pair of generally parallel relatively laterally displaceable support members, including a body adapted for connection with one of the support members, a latch member mounted for axial displacement between extended and retracted positions in a transverse opening contained in the body member, a spring biasing the latch member toward the extended position, and a strike member mounted on the other support member adjacent the free end of the latch member when the latch member is in the extended position, the strike and latch members carrying sets of strike teeth and latch teeth that are normally in engagement when the latch is in its extended position, the tips and valleys of the teeth of at least one of the latch and strike teeth sets having curved and convex transverse profiles, thereby to compensate for minor misalignment between the strike and latch members.

Abstract: Provided is a folding electric bicycle comprising a front frame section; a rear frame section comprising two bent arms individually having one end pivotably coupled to an axle passed rear wheel, and two auxiliary wheels rotatably mounted in open ends of the bent arms; a crossbar comprising a front end and a rear end pivotably coupled to the front and rear frame sections respectively; a latch detachably interconnected the crossbar and the rear frame section; and a down tube interconnected the front and rear frame sections. The rear frame section can either retract toward the front frame section about the unfastened latch for folding or extend from the front frame section about the unfastened latch for extending. The auxiliary wheels are either disposed above the ground when the bicycle is ready or rotatable and contact with the ground when the bicycle is folded for facilitating moving.

Abstract: A load floor latch that can be installed in a vehicle floor for storage having a biasing means for actuation but allows slam action closure. The latch comprises an actuation assembly that is attached to a housing or lid and is designed to accommodate a pawl member for engaging and disengaging a frame. The flat lid and out-of-way handle allow extra room within the vehicle and prevent damage or breakage of the latch.

Abstract: The description relates to a latch closure for walls, doors, shutters which are articulated at frames, housings or the like by hinges, wherein the frame surfaces, housing surfaces, door surfaces or wall surfaces which are connected with one another by the hinges are essentially flush with one another in the closed position, comprising a first closure housing which can be fastened to the frame or the like and which has a rear-engagement portion for receiving the latch of the latch closure in a locking manner and a second closure housing which can be fastened to the door or the like and in which the latch is arranged so as to be displaceable against spring force by means of a handle, wherein, according to the invention, the second closure housing forms a projection which contacts an end face formed by the first closure housing essentially parallel to the door plane when the door is closed.

Abstract: An improved door handle is provided with a housing having a plunger tunnel designed to dissipate stress forces, such as door seal loads and vibration. The plunger tunnel is D-shaped in cross-section, with a curved interior radius to preclude stress concentrations. The plunger has a complimentary D-shaped cross-section for sliding movement within the tunnel between extended and retracted positions to latch and unlatch the door.

Abstract: An anti-finger-catching system in which elastic sections are fitted to the edges of the leaves of doors and windows, and optionally to the edges of their frames to prevent the user's fingers from being accidentally caught between the frame and the leaf The leaf has, on its front edge, a closing mechanism, fitted with a retractable bolt, whose rear part has a slot running along it through which a driver passes transversely, the driver being connected to operating knobs. The bolt also has an intermediate stop with a spring acting on it and tending to keep it in its protruding position; and a front part that is longer than the thickness of the elastic section.

Abstract: A load floor latch that can be installed in a vehicle floor for storage having a biasing means for actuation but allows slam action closure. The latch comprises an actuation assembly that is attached to a housing or lid and is designed to accommodate a pawl member for engaging and disengaging a frame. The flat lid and out-of-way handle allow extra room within the vehicle and prevent damage or breakage of the latch.

Abstract: A latch assembly for a movable closure. The latch assembly has a housing with a front, a rear, and a first wall with a forwardly facing surface and an opening through the first wall. The latch assembly further has an actuating assembly including a paddle that is pivotably mounted for movement relative to the housing about a first axis between first and second positions. The paddle has a second wall with a rearwardly facing surface. The actuating assembly further has a post projecting rearwardly from the second wall into the opening through the first wall. The post has a third wall which fully blocks the opening through the first wall as viewed from the front of the latch assembly with the paddle in the first position.

Abstract: As assembly is provided for securing a door to a fixed object which allows the door to be locked from the outside with a conventional padlock, but which allows the door to be opened from the interior while the padlock is in place. The door has a first face, a second face and an edge. The fixed object typically includes an abutment. Means are provided for engaging the door to the abutment. The engaging means are disposed on the first face of the door proximate to the edge and are movable from an engaged position in which the door is engaged to the abutment, to a released position in which the door is disengaged from the abutment. Means are also provided for biasing the engaging means toward the engaging position. A flexible cord is attached to the engaging means. An active hasp is connected to the flexible cord distal to the engaging means and is disposed on the second face of the door.

Abstract: An automatic door latch is disclosed. In a preferred embodiment, the latch includes a dead bolt which is automatically moved from a partially retracted or trigger position to a fully extended locking position when a door in which the lock is mounted is closed. When a key is used to unlock the dead bolt from outside of the door, or a finger turn or key is used to unlock the dead bolt from inside of the door, the dead bolt is automatically reset to the trigger position. In a preferred embodiment, the dead bolt lock includes a multi-position switch mounted in the lock housing which engages a contact member mounted on the dead bolt. Retraction of the dead bolt into the housing causes the multi-position switch to engage the contact member and to secure the dead bolt in the trigger position. Subsequent retraction of the dead bolt into the housing causes the multi-position switch to disengage from the contact member, thereby allowing the dead bolt to extend from the housing to the locked position.

Abstract: An apparatus and method are presented for opening an access door having a latch opposite a hinge. The latch locks the access door in a closed position, and may include a pair of parallel locking pins and a connecting member joining the locking pins. The locking pins extend outwardly from the access door and into a pair of holes in an adjacent portion of a frame surrounding the access door. The latch may also include one or more resilient members (e.g., springs) urging the locking pins into the pair of holes. The connecting member and an adjacent fixed portion of the access door are separated by a distance d, and the locking pins extend a distance l into the pair of holes. The present method includes providing a prying member having a first lateral dimension s where s.gtoreq.(d+l) and a second lateral dimension w where w.ltoreq.d. Dimension w of the prying member is inserted between the connecting member and the adjacent fixed portion of the access door.

Abstract: A clamp for securing a removable cover on a screening machine is an over-center mechanical clamp which includes two distinct clamping force adjustment mechanisms. A first clamping force adjustment mechanism includes a plurality of clamping positions on a support bracket mounted on the cover. The clamp handle assembly is selectively positioned in one of the clamping positions on the support bracket to provide incrementally different clamping force levels. Additionally, irrespective of the clamping position, rotation of a threaded rod of the clamp adjusts the clamping force. A force level indicator is provided on the clamp to indicate the clamping force produced by the clamp.

Abstract: The present invention relates to an arrangement for a locking mechanism comprising a lock bolt spring-assisted in the intended direction of locking, which is contained inside a lock casing connected to a plate capable of attachment along the side of a door. An actuating arm projects laterally form said lock bolt and capable of actuation by means of a handle connection extending through a door of the intended kind and a handle projecting on either side of the door. A pivoting follower acts between said handle and actuating arm for the purpose of actuating the actuating arm and the lock bolt. The arrangement has a lock component capable of being caused to move in a linear direction arranged in such a way as to be capable of displacement by means of a pivotally mounted lock component carrier.

Abstract: A vehicle glove box door latch assembly includes a housing with a central opening formed therein and a latch handle positioned substantially within the central opening. The latch handle is operative to actuate unlatching of the latch assembly. A utility hook is positioned substantially within the central opening and pivotally connected to the housing for pivotal movement between a stowed position within the central opening and a use position extended from the central opening. The utility hook is pivotable independently of the latch handle.

Abstract: A glove box door latching assembly comprises a latching mechanism including three plastic molded parts and a spring. The mechanism includes an offset latch member which allows positioning of the mechanism closely adjacent a longitudinal end of a glove box door. The assembly also includes a lock tube formed integrally therewith for receiving a locking mechanism. The lock tube is flush with the front face of the mechanism to allow the lock tube to be covered by the glove box door if the locking feature is not desired. The universal latch assembly design is widely applicable to various glove box door assemblies.

Abstract: A new latch assembly for a vehicle glove box door, or other locking device, wherein the door is to be held in a flush position relating to an adjoining panel surface. The latch assembly includes a freewheeling locking feature, an actuator member which is not sensitive to the striker positional variance, improved low handle opening effort. The latch assembly also include improved lock cylinder loading, and improved closing efforts by use of a molded urethane bumper. The latch assembly also has improved styling with a single color throughout using no metal parts which need lubrication, and the latch assembly unit is fully enclosed so that no moving parts are visible and the scorpion tail has been not used.

Abstract: A locking apparatus, particularly desirable for modifying a "push/pull" latch apparatus for a hospital door, by which it may be released from a locked condition by manual effort applied from either side of the door, thus giving an unlocking effect to a door even though its locking has been caused by a manual locking effort applied by the person on the other side of the door.The apparatus has a particularly beneficial use in a large commercial installation such as a hospital, and provides that the lock-releasability may be achieved by a manual effort applied wholly on the outside of the door, as well as the person on the inside of the door being able to either lock or unlock the door; and, although the door may be locked or unlocked from either side, the unlocking component manually operable to lock or unlock the door from the outside is provided to be of such an inconspicuous nature that it would be realistically considered to not be a component with a door-unlocking effect.

Abstract: A retractable window latch for locking together a first and second window having interlocking meeting rails. The retractable window latch includes a latch body having a faceplate that is substantially flush with a first interlocking meeting rail. A retractable bolt disposed in the latch body extends outwardly through a slot in the faceplate. A handle is coupled to the bolt for retracting the bolt into the latch body. The bolt remains retracted while the first and second windows are open. A flexible release member is disposed behind the faceplate such that the flexible release member engages a second interlocking meeting rail when the first and second windows are closed. The second interlocking meeting rail engages the flexible release member in order to lift the retractable bolt from the slot in the faceplate. A spring forces the bolt outwardly from the latch body to secure the first and second windows together.

Abstract: A new latch mechanism for a vehicle glove box doors, or other locking requirements, wherein the door is to be held in flush position relative to an adjoining panel surface, said latch mechanism comprising, an injection molded plastic body, an injection molded plastic handle, an injection molded lock member or actuator member, with the previous parts being spring biased into their appropriate positions during operation of the latch mechanism, and with the actuator member being of sufficient width to provide a strong retaining force for the latch mechanism upon the event of a vehicle crash impact and also acting to provide a wide contact locking surface to thereby assist in preventing flex distortions between said door and panel surface.

Abstract: An adapter and method for retrofitting a round door knob with a lever attachment including a lever arm portion and a door knob receiving portion wherein the door knob receiving portion may be fitted to the door knob while the door knob remains in place on the door assembly. The door knob receiving portion of the lever attachment has first and second bores of different diameters which allows the door knob to be abuttingly received within the door knob receiving portion and fixed in place therein by securing elements which project through a plurality of bores provided in the door knob receiving portion of the lever attachment.

Abstract: A door locking assembly which facilitates removal and replacement of a damaged lockset without the need to remove the cylinder, levers or knobs, or the escutcheon plates, which includes a lockset mountable within a door, said lockset including a latch for locking the door, a spindle engageable with the lockset, said lockset including a bushing defining a spindle aperture for accommodating a first end of the spindle, said spindle being adapted to rotatably displace the bushing for actuating the latch, a handle for securing a second end of the spindle, said handle means defining a socket for withdrawing the spindle to remove the lockset from within the door.

Abstract: A lockset is adaptable for installation at more than one backset distance including a bolt assembly which has a latch member and a separable drawbar located within a housing assembly, a portion of which is also made up of two relatively movable portions. Operation of the lock is standard in so far as extending and retracting the bolt is concerned, while adjustment of the backset distance is accomplished by simultaneously adjusting the lengths of the bolt assembly and the housing assembly. Visual indication of backset distance is provided as is adaptability without the use of tools. Bolt throw disablement is provided when the lockset is in the transfer position for changing backset.

Abstract: A latch assembly for a door movably mounted on a frame is disclosed together with its method of operation, the assembly including a housing mounted on the frame adjacent an opening for receiving the door, a first pin mounted in a first passageway of the housing with a spring biasing the first pin into extended locking engagement with the door, a second pin being mounted in a second passageway intersecting with the first passageway, a spring biasing the second pin into extension for opening the door from the frame, retainers being interconnected with the first and second pins for securing each pin in a retracted position when the other pin is extended so that the first pin positively locks the door in a closed position retracting the second pin and the second pin positively opens the door when the first pin is retracted by the actuator.

Abstract: A mechanism actuator comprising a frame; a lever movable to actuate mechanism associated with the frame; a dog movable into and out of blocking relation with lever movement; and structure for selectively holding the dog in either of two positions between which it is movable, the dog in one of the positions blocking lever movement, and the dog in the other of the positions unblocking lever movement.

Abstract: A door lock apparatus includes a latch bolt which can be displaced from an operable position by actuating a door handle driver against the action of a biasing spring. A displaceable catch is provided for retaining the latch bolt in a retracted position. The catch is biased by a second spring into its catch position from which it can be displaced by an electromagnetic actuator, which in turn is connected to a wireless signal receiver. An alarm detector, remotely placed from the lock apparatus and connected to a wireless signal transmitter, is adapted to be activated when the detector detects a state of alarm, sending a signal which is detectable by the receiver at the lock apparatus for displacing the catch out of its catch position.

Abstract: A selectively self-locking deadbolt latch for incorporation into doors or the like. The latch can be preliminarily "armed" such that as the door closes the bolt will extend into the opening of the door strike. The latch mechanism includes a cam lever having a shoulder which loads against the bolt extension. A compression spring within the bolt urges the bolt towards the locked position once the cam lever is released from the bolt extension by closing the door. The temporary retraction of the bolt as it engages the door strike releases the bolt and cam lever. A beam spring acting on the cam lever urges the cam lever forward towards the locked position. The bolt is initially armed by turning the inner turn lever slightly or by depressing the end of the bolt which includes chamfered edges to allow the bolt to move past the door strike for release.

Abstract: A lock assembly (10) for mounting on a door includes a dead-locking element (31), movement of which is controlled by an electrically operated device (35) for mounting on the door frame and magnetically coupled to a linkage system (32,33) whereby the dead-locking element (31) is moved. The linkage system carries a permanent magnet (34) which interacts with the core (37) of the solenoid when the door is in its closed position, and when the solenoid is energised it repels the permanent magnet (34) thereby operating the linkage system to move the dead-locking element (31) away from its operative position, thereby allowing a locking member (12) to be withdrawn.

Abstract: A push door opening mechanism for use where protection from fire is sought. In operation the push handle causes a spring biased operating lever to rotate within the door opener. The operating lever pulls a bolt which allows the door to open. When the lever is in the return position, a cavity in the operating lever is positioned adjacent to a locking pin. That pin is held in the base plate and is longer than the depth of the cavity in the operating lever. The locking pin is also mechanically biased to move into the cavity. Once positioned in the cavity, the rotation of the operating lever is jammed because the locking pin is partially in the operating lever and partially held rigid in the base plate. However, during normal operation, the locking pin is retained out of the cavity by a low melting point fusible link pin. During a fire the base plate becomes hot, causing the link pin to melt which frees the locking pin.

Abstract: A safety device from a scaffold latch, providing a movable abutment arm which is supported to have two positions, a first position providing a blocking abutment which blocks latch-releasing withdrawal movement of the latch pin, and a second position in which it permits such latch-release movement of the latch pin, the abutment arm being co-operative with the release lever of the latch assembly to cause its movement to its second position automatically as the latch release lever is being actuated; and a spring automatically holds the safety's abutment arm in its first (pin-blocking) position unless the pin-release lever is being actuated.

Abstract: The invention relates to improvements for an adjustable dead bolt assembly which includes an adjustable bolt extension member connected to a bolt and an extension housing connected to a bolt casing for accommodating the bolt extension member, wherein the bolt is provided with a uniform height and width throughout the length of the bolt for reducing the cost of the material and simplifying the processing steps.

Abstract: An extra-long deadlocking door latch or longlatch is arranged to fit and operate within the normal latch bolt openings provided in a standard pre-cut residential or commercial door, in the presence of two transverse bolts which pass through the transverse hole in the door to hold inside the outside door knob assemblies securely against the door so that an intruder cannot pry off the outside assembly and thus gain entry. The longlatch is arranged to protrude at least one inch out from the door and into a latch holder in a door frame. Two springs are located above the transverse bolts and extend into the door beyond both transverse bolts. The two springs, or just one of the springs, can move the longlatch one inch or more from the fully withdrawn position to the fully extended position. The longlatch is brought to the fully extended position in precisely the same way as is done with a conventional deadlocking latch, i.e.

Abstract: A door set has its door knob engageable with a bolt pin through an eye which is formed in one piece with a screw threaded into a shank of the bolt pin to enable axial adjustment of the effective length of the bolt. The relative rotation of the shank and of the screw can be effected from within or even by rotation of the bolt, for which purpose flats can be provided on the bolt and on a sleeve in which the bolt is guided. The threaded portion of the screw can be provided on ribs which can pass axially along grooves in the internal thread on the shank of the bolt.

Abstract: The door latch construction is of the usual type wherein a bolt is reciprocal in a casing between extended and projecting positions with latch operating means forwardly operably connected to the bolt for causing such motion. In such latch construction, the longitudinal distance between the forward extremity of the casing and the operator axis constitutes backset. According to the present invention, the casing and bolt are each comprised of relatively longitudinally movable forward and rearward parts with a substantially helical slot on one of the parts and engaged by a projection on the other of the parts in each case. The slot and projection of each provides helical longitudinal movement for each of the determined same amount between a forward backset and a rearward backset, with interconnection means between certain of the bolt parts and certain of the casing parts for requiring substantially the same helical longitudinal movement of one upon such movement of the other.

Abstract: A door set has a bolt-guide sleeve which is adjustably connected to the escutcheons on which the doorknobs are journaled by a pair of toothed elements bridging the escutcheons and passing through slots in the sleeves which have complementarily toothed edges.

Abstract: A door installation and a locking device used therein. The door installation consisting of a door provided with the body of a lock a of the locking device, and frame members fitted with a receiving plate thereof. The body of lock has a bolt built-in. This bolt is held optionally in the half-projecting position between the wholly projecting position and the door-opening position by handling operating units. The bolt in turn puts a controlling means in motion, whereby it is possible to make an electric circuit operate automatically ON or OFF, which electric circuit is arranged to interpose in itself electric appliances, for example, such as lighting apparatuses being disposed indoors or outdoors, therefore giving practical effect to the simplification of operating the lighting on-and-off and to the power saving, and further contributing to the safety problem through preventing overheating and leakage caused by the possible neglect of not turning lighting off.

Abstract: A handle device for a door which is formed of an assembly installed in a door panel and has a handle grip connected thereto by a pivot pin. A latch is retractably mounted to the assembly and interlocked with the handle grip. A lock is disposed within the assembly and is provided with a cam secured to a rotor of the lock which checks the receding slide of the latch. The lock cam is formed in the shape of a disc and is closely fitted in a circular recess of the assembly.

Abstract: A lock comprising a day bolt (1) and a night bolt (2), said day bolt (1) being urged by a spring (8) to an extended locking position and being retractable by a handle-operated tumbler (5) to a releasing position, said night bolt (2) urged by a spring to a retracted releasing position, and being lockable both in an extended locking position and in the retracted releasing position by a packet of tumblers (14) adapted to be swivelled by means of a suitable key to a position wherein the locking of the night bolt (2) is removed, thereby rendering it freely slidable.

Abstract: A locking apparatus, particularly desirable for modifying a "push/pull" latch apparatus for a hospital door, by which it may be released from a locked condition by manual effort applied from either side of the door, thus giving an unlocking effect to a door even though its locking has been caused by a manual locking effort applied by the person on the other side of the door.The apparatus has a particularly beneficial use in a large commercial installation such as a hospital, and provides that the lock-releasability may be achieved by a manual effort applied wholly on the outside of the door, as well as the person on the inside of the door being able to either lock or unlock the door; and, although the door may be locked or unlocked from either side, the unlocking component manually operable to lock or unlock the door from the outside is provided to be of such an inconspicuous nature that it would be realistically considered to not be a component with a door-unlocking effect.