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: A manhole cover assembly comprises a seating ring which can be inset in a street or roadway surface and which is formed with a pair of lateral compartments in which respective latches of the plug-like cover can be received. According to the invention, the cover has a pair of opposing radial projections adapted to be received under respective projections of the ring upon rotation of the cover relative to the ring in bayonet action. Each of the latches is in the form of a pawl pivotal about a respective pin on the radial projection and adapted to swing so that a surface of the pawl substantially completely closes the compartment, flush with the upper surface of the ring and an end wall of the pawl abuts or is juxtaposed with the wall of the compartment to prevent rotation of the cover. The pawl can have flanges which, when the pawls are swung upwardly, form handles enabling the cover to be lifted from the ring.

Abstract: A security gate for a window or other aperture of a building includes a grille which is hingedly mounted at one side to a frame member which is secured within the aperture. The ends of the bars of the grille opposite the hinge enters slots in part of the frame and are secured therein by a locking bar. The arrangement provides a secure closure for the opening yet permits egress from the interior of the building in the event of fire or other hazard.

Abstract: An arm assembly (10) having first and second arms (20,22), a first apparatus (26) and an adjusting element (24) is used to adjustably hold open a door (18), window, or the like on a work vehicle (12), for example. In the harsh environment of the work vehicle (12), the door (18) must be securely held open. The first apparatus (26) pivotally connects the first and second arms (20,22). The second arm (22) has an opening (46) alignable with an opening (44) of the first arm (20) in response to moving one of the arms (20,22). A member (48) has a first end portion (50) and is connected to the first apparatus (26). The member (48) is movable between a first position (54) at which the first end portion (50) is positioned in the openings (44,46) of the first and second arms (20,22) for maintaining the door (18) in an open position and a second position (56) at which said first end portion (50) is spaced from the second arm opening (46) for changing the door position.

Abstract: A quick opening latch arrangement for hinged vehicle windows in which the window opening that is defined by the vehicle side wall has a sash frame assembly hinged to the window framing at the top of the window opening, and the sash frame assembly along its lower rail is equipped with a latch and release bar hinged thereto for cooperation with a keeper bar in parallelism therewith that is adjustably mounted on the window frame sash subframe. The keeper bar is formed with an elongate bead of cylindrical configuration that is snap fitted in a similarly contoured socket formed in the latch and release bar, to latch the sash frame assembly in its closed position, with the latch assembly being arranged to effectively resist opening under pressures acting outwardly of the window and the sash assembly, while providing for quick release of the latch under a light manually applied pulling action on the latch and release bar.

Abstract: An apparatus for locking a door leaf comprising a turnable shaft secured to the door by an arm to drive the door in opening and closing movements under the action of a piston-drive which produces slight axial movement of the shaft as the door approaches the closed position. A first locking element is fixed to the door frame and a second locking element is fixed to the door, the locking elements having wedge-shaped noses which interengage and lock the locking elements when the door is closed and the shaft is lifted. The locking element on the door frame includes an axial extension overlapping the nose of the locking element on the door to form an abutment to limit the degree of angular closure of the door. The axial extension can carry a friction-reducing insert to facilitate relative movement between the noses when the door is lifted at the end of the closure movement.

Abstract: A livestock detaining gate preferably constructed of steel, having a gate latch system for locking gate panels into a closed position, and for permitting the panels to rotate into either a forward or rear open position. The latch system is preferably comprised of two cylindrical pipe sections suspended from parallel bars, which are also parallel to the upper edge of the closed gate panels, and are positioned slightly above said upper edge, with one cylinder to the front and one to the rear of the closed gate panels. An additional parallel rod is positioned slightly ahead of the forward cylinder, with another parallel rod positioned slightly behind the rear cylinder. The cylinder may swing inward upon contact with the closing gate panel top, allowing the gate panel to close. However, the extreme forward and rear rods prevent either cylinder from swinging outward, thus locking the gate panels in the closed position. A cantilever lift system is connected to the cylinder supporting rods.

Abstract: A security guard for mounting to a frame of a window opening in a building includes an elongated channel bar having a plurality of mounting pins secured to one end thereof and a key actuated lock visible and operable only from the interior of the building mounted within the confined flanged area of the bar at the opposite end thereof, the mounting pins and the retractable dead bolt of the lock cooperative with adjacent window frame structure to securely but releasably retain the channel bar in position next to the window on the interior side thereof. The spaced pins prohibit the bar from being rotated and an additional lock cover member mounted to the bar substantially coextensive of the lock protects the lock from external tampering. Suitable grill work or the like may be mounted to and supported by the channel bar.

Abstract: A metallic anti-intruder type gate, particularly adapted for use in windows offering access to a fire escape. The gate includes an outer frame element permanently installed within a window frame, and a hinged gate element supported by the frame and maintained in locked position relative thereto by a sliding bolt. The door is formed to include a rectangular peripheral frame and metal lattice which avoids adequate ventilation and light consistent with mechanical strength. The sliding bolt is shielded to permit access thereto for operation only from that side of the door facing the interior of the building in which it is installed.

Abstract: An apparatus for use in elevating the movable end of the a swinging gate and for supporting and maintaining the end of gate in a predetermined position, whereby the locking drop rod of the gate may be selectively and cooperatively received by the apparatus to thereby lock the gate from further swinging movement.

Abstract: A railway car having an end opening includes a swingable folding door assembly provided with a keeper mechanism carried by the door assembly and the adjacent side wall of the railway car. As the panels of the door assembly are folded from a flat, closed position overlying the car end opening to a collapsed, open position disposed substantially longitudinally extended away from the end of the car side wall, a guide rod carried by the door assembly is arcuately displaced to simultaneously horizontally shift a vertical locking pin to a position overlying an aperture in a lock plate whereupon gravity concurrently drops the connected rod and pin to secure the open door assembly in a fixed position.

Abstract: A mechanism for locking the lock straps of railway car hatch covers includes a pivoted lever which is clamped over the tongue of a lock strap. The clamping is achieved by means of a pivoted keeper member having a mouth portion engaging the ends of the lever in locking relation. The keeper member is pivotally supported and is positioned by an overcenter toggle action in a receiving or locked position by means of a leaf spring assembly. The locking and unlocking action may be accomplished by hand or foot operation.

Abstract: A retainer plate is pivotally mounted on a panelboard cabinet door lock housing, which carries a latch for locking the door. A detent on the plate engages in a rabbet opening to enable limited opening movement of the door in response to the pressure developed by arc gases generated by fault currents passing through a tripped circuit breaker in the panelboard cabinet. For ordinary opening movement, the lock latch is manually operated to pivot the retainer plate and disengage the detent from the rabbet opening.

Abstract: An apparatus for releasably maintaining the door of a cabinet in the closed position. The apparatus is comprised of a strike and a latch member which are releasably engageable. The latch is rotatably mounted and spring biased towards the strike. The apparatus has substantially smooth surfaces and is made of non-porous metal so as to resist capturing deposits of dirt and food. The apparatus is configured to be easily opened and to be free of crevices or pockets to prevent the accumulation of dirt and debris. In operation, the latch member is released from engagement with the strike upon being struck on its upper surface.

Abstract: A locking mechanism for a horizontally swinging gate bar, for locking the end of the bar to a vertical post. The vertical post has a cap member threadedly mounted eccentrically thereon, said cap member having a cavity to receive the end of the gate bar. The cap member contains a locked linkage, one of whose links includes a locking projection engaging in a slot in the post, whereby to lock the cap member in a non-rotatably held condition lockingly receiving the end of the gate bar. The linkage includes pivotal connections formed by the shackles of padlocks. By removing at least one of the padlocks the linkage can be disconnected to allow withdrawal of the locking projection from the post slot, to thereby allow the cap member to be rotated sufficiently to enable the end of the gate bar to be swung out of the locking cavity. A stop member depending from the floor of the cavity cooperates with a horizontal lug in the post to prevent unscrewing of the cap member from the post.

Abstract: A fireplace stove comprising a generally rectangular metallic housing adapted to extend into a fireplace opening, with penetration being limited by a flange around the housing which engages and seals against the face of the fireplace. A metallic inner fire shell is closely spaced within the inner surfaces of the housing to provide airflow passages between them. An air inlet with a blower is located at the lower end of one side of the housing and a narrow, hot air outlet extends across the top. Air is directed to flow almost completely around the fire shell for maximum heating. An air inlet with a blower is located at the lower end of one side of the housing and a narrow, hot air outlet extends across the top. Air is directed to flow almost completely around the fire shell for maximum heating. An access door is held in sealed engagement by a spring latch and a combustion air duct in the door extends into the interior so that the air entering thereto is preheated before actual contact with the fire.

Abstract: An access panel assembly for a suspended ceiling comprises one or more access panels pivotally mounted on an outer frame. The panel or panels can be raised to lie flush with the frame and with a suspended ceiling, or lowered to an access position. The pivotal mounting is provided by one or more pivot pins on the outer frame engaging guide slots in brackets on the one or more access panels. Each guide slot preferably comprises a generally horizontal portion for receiving its pivot pin when the panel is in its raised position and a portion extending downwardly and to one side of the access panel.

Abstract: A removable sunroof panel having a frame extending around an opening in the roof of a vehicle is disclosed. The panel has a pivoted arm assembly which is movable from an overcenter closed position to an overcenter vented position wherein the rear edge of the panel is raised above the roof of the vehicle creating an opening. The rear edge of the panel is moved from its closed to vented position by a 2 part fastener having a releasable latch assembly attached to the frame and the pivoted arm assembly pivoted to the panel. A pivoting link has one end pivotally attached to the arm and the other end pivotally and releasably connected to the releasable latch. Sliding a latch slide in the releasable latch releases the rear edge of the panel from the releasable latch.

Abstract: Latch lock hardware for a window having a latch-lug that is insertable into a latch pocket in the casing for tilting purposes. The latch lock hardware comprises a pair of vertically-spaced cams located on the casing above the latch-pocket and a pair of vertically-spaced elements mounted on the window. The upper element is located beneath the upper cam to prevent removal of the window for a small tilting angle of the window and the lower element is located beneath the lower cam to prevent removal of the window for a relatively larger tilting angle of the window.

Abstract: A lid for a glove compartment of a vehicle, or the like, comprised of an upper and a lower injection molded lid half, which halves are secured together, a lock for the glove compartment lid, including a swiveling lock bar, which is held to the lid, and a cam carrying tumbler which is moved to position cams for swivel opening the lock bar when the tumbler is pushed in, the lid halves are shaped with various recesses, holes and shapings for being supported in relative positions and for receiving and holding the lock.

Abstract: A safety vent preferably for use in a high rise building for permitting the escape of smoke and fumes and comprising a fixed frame accommodated by an opening in the building, a movable frame pivotally secured to the fixed frame and means for biasing the movable frame to an open position. In the preferred embodiment the movable frame includes panel means and pivots at its lower end. A latch mechanism maintains the movable frame in a closed position while a release mechanism, operated either electrically or pneumatically, can be energized to permit opening of the vent. Limiting means in the form of shock absorbers or snubbers interconnect between frames for limiting the open position of the vent.

Abstract: Guard apparatus for a window or the like in a building characterized by a guard element that is hingedly mounted to a wall adjacent the window and adapted to prevent entry into the window from the exterior and having a releasable fastener that is releasable interiorly of the building without tools to allow emergency egress through the window but resists force exteriorly of the building. The releasable fastener has a lock housing that is inaccessible from outside the building when the lock bar on the guard element is inserted into its normal latched position. Also disclosed are specific structural details and preferred embodiments of the releasable fastener.

Abstract: A latch control for an explosion relief panel is described in which the panel of relatively rigid construction, is normally retained in place by an arm pivotally mounted at one end, a pivotally mounted fork assembly at the other end of the arm which includes a magnetically responsive keeper which is loosely attached to the fork assembly, a magnet carried by the arm normally holding the keeper firmly to prevent rotation of the fork assembly about its pivotal axis. A plurality of springs exerting the desired force are interposed between the panel and the arm. The door carries a rigid post, adjustable in length, for movement with the panel against the force of the springs to apply a releasing force on the keeper to release the keeper and move the fork assembly to a release position so that the arm rotates and releases the panel.

Abstract: A burglary proof door, especially for a residence, comprising a frame formed of metal hollow sections or profiles and a door faced with coverings and assembled together from metal hollow sections or profiles. In its closed position the door is guided both at its hinge side and lock side throughout its entire height in substantially U-shaped guides provided at the frame. The door part guided at the lock side in the frame comprises two rails movable transversely with respect to the direction of opening of the door and extending over the entire door height. The hinge side outer edge of the door is bevelled or tapered throughout its entire height and the substantially U-shaped guide provided at the hinge sideframe part is accommodated to such shape.

Abstract: A flexible seal member is secured to the periphery of the body of a coke oven door that is shaped to the contour of the receiving door jamb of the coke oven body. A seal edge of the seal member contacts the jamb in sealing relation. A plurality of spring pressing elements secured to the periphery of the door exert a constant sealing pressure on the seal member to maintain the seal member in sealing relation with the jamb. A plurality of stop mechanisms arranged on the periphery of the door maintain a preselected distance between the fastening point of the seal member to the door and the sealing surface of the jamb. A plurality of latching mechanisms positioned at selected regions on the door and secured to the coke oven body are operable to bend the door according to the contour of the jamb as the door experiences deformation during the coking operation. The bending of the door is also enhanced by reducing the moment of resistance of the door by providing longitudinal recesses therein.

Abstract: A readily removable closure panel for an opening in a roof or wall of a vehicle and including a quick release hinge means for permitting partial opening of the panel and for rapid disengagement and removal of the panel from the roof. An adjustable hinge construction for a panel wherein the hinge construction includes a resilient yieldable hinge member which provides a hinge edge for releasable pivotal engagement with a cooperable frame portion of a frame member defining an opening in the roof. The hinge edge engagement provides a hinge axis beneath or interiorly of the panel margin and the hinge edge is adjustably spaced therefrom for causing the panel edge margin to press against a resilient gasket on the frame member in both closed and partially opened position of the panel.

Abstract: A moulded plastics pet door for relatively large animals comprising a rectangular frame for attachment to the sides of an aperture in a main door, a second U shaped frame engaging a frame on the rectangular frame and a flap engaging a frame on the second frame both the frame and the flap being pivoted on a rod extending transversely of the rectangular frame, shielded magnets being provided on the second frame and the flap to engage shielded keepers on the second frame and the flap. The flap is moulded with hollow reinforcing ribs and with slots in the rear side to receive bolts for locking the second frame and flap to the rectangular frame to prevent use of the pet door.

Abstract: A door keeper for double swing doors that retains the doors against partially opening due to wind forces. The keeper includes a permanent magnet that is mountable to a door frame. The magnet includes a flat surface that may be positioned flush with the adjacent surface of the door frame. A roller formed of magnetic material is mounted on brackets to the door in close proximity to the magnet when the door is in a closed position. Brackets mount the roller for free rotational movement about its axis and limited transverse movement toward and away from the permanent magnet surface. Therefore, when the door is in a closed position, the roller is engaged with the magnet by magnetic attraction, which retains the door in a closed condition against reasonable wind force. However, the roller is capable of rolling over the magnet surfaces when the door is subsequently moved by someone wishing to leave or enter the associated building.

Abstract: A latch for releasably holding two members together. The latch includes a stud adapted to be mounted in fixed position on one of the members and a receptacle adapted to be mounted in fixed position on the other of the members and located to engage with the stud when the members are brought together. A coupling on the stud and receptacle automatically couples and holds the two members together. A release on the stud and receptacle which is exposed for actuation acts to uncouple the latch and permit the members to be separated. The coupling includes at least one flanged finger on the stud resiliently displaceable and a fixed rim on the receptacle so that when the stud and receptacle are engaged the flanged finger will displace and engage the rim to close the latch. The release includes a surface to direct the resilient finger away from engagement with the rim and release the latch when the release is actuated.

Abstract: A ventilator hatch assembly for vehicles, watercraft and the like, which is characterized by having a hatch member, which is interconnected to a mounting frame restable within a ventilation hatch opening for pivotal movements between alternative open ventilating and closed, latched, non-ventilating positions. The hatch cover and mounting frame are interconnected by separable hinge means and separable flip-action or snap-action latch means which operably cooperate to accommodate rapid opening and closing movements of the hatch cover and also to facilitate complete and rapid removal of the hatch cover from the hatch opening to permit the latter to serve as an emergency exit from the vehicle or craft.

Abstract: The heavy iron gratings for a burglar-proof window are pivotally mounted on one side. The other side is provided with a latch type locking mechanism using a plunger having a ramped surface to hold a set of ball bearings in locking engagement with a matching cylinder. A small carbon dioxide container is mounted within the latch and is spring loaded with a detent arranged for actuation from within the home which is being protected. When the detent is released, a spring-loaded plunger punctures the carbon dioxide container, and a ramped latching plunger is moved to release the locking ball bearings, and then the iron grating or barrier is then vigorously swung open by the pneumatic pressure from the punctured container.

Abstract: A pipe rail and gate system of uniform metal constituents and simple design utilizes extrusions to form accessory units such as hinges and stop plates to fit the pipe structure, the units being cut from the extruded sections. The shapes of the units and the expedients for fastening the units in place are blended in and function with the rail structure, outlines of the units and their working parts being confined within the dimensions of the rail structure with a minimum of protuberances.

Abstract: A self-draining, leak-resistant boat window comprising a frame body having a continuous mounting flange for engagement with the hull of the boat, and a spigot wall connected with the flange and adapted to extend through an opening in the hull. A transparent molded plastic window pane is hingedly carried on the body; latches are provided to secure the pane in a closed position. The mounting flange has a peripheral groove into which a rib portion of an extruded, hollow sealing gasket is pressed. The rib portion has longitudinal barbs which frictionally engage the walls of the groove, thereby holding the gasket captive without cement. The gasket is oval in cross-section and is stretched an extent when installed on the window to thereby prevent buckling at the corners. When it is pressed between the flange and window pane it flattens a considerable amount by virtue of its oval shape, forming a tight seal.

Abstract: A horizontal pivot window construction. The window includes a window frame having a sill, a head, and a pair of upright jambs which interconnect the ends of the sill with the ends of the head. The window sash is mounted within the frame and the sash includes upper and lower rails and upright stiles which interconnect the opposite ends of the upper and lower rails. Means are provided for supporting the window sash within the window frame for movement of the sash between a closed and locked position and an open and unlocked position. The supporting means includes means for pivotally mounting the sash within the frame for movement about a substantially horizontal axis so as to make the normal exterior side of the window accessible from the interior of the room in which the window is located. The supporting means also includes a member for vertically moving the sash between an upper position and a lower position when the stiles and the jambs are substantially coextensive with each other.

Abstract: A window safety system for a window having a frame with a head, a sill, and side jambs defining a sash receiving opening, and a sash member mounted in said opening for pivotal movement about a vertical axis between closed, opened and reversed positions relative to said frame, said safety system including a releasable latch assembly spaced intermediately of said pivot axis and one of said jambs for selectively interconnecting said frame and said sash for limiting the initial opening movement of said sash out of said closed position to a ventilating position, said latch assembly being key releasable for permitting further free swinging opening movement of said sash member toward a fully reversed and latched position for window washing.

Abstract: A foolproof mechanism for operating a multi-positioned window is disclosed for general use, but is particularly suitable to institutional, commercial, industrial and other buildings with unrestricted ingress, and the window has a handle capable of allowing it to be in a tilt, swing, or closed position. Means are provided to lock the handle in each of the positions, when the window assumes the desired open position.

Abstract: A frame extending around an opening in a vehicle roof is adapted to support the perimeter of a curved glass panel to close off the opening. A pair of bayonets projecting in spaced relation to the underside of the forward edge of the panel mates with an aperture in the frame when the panel is inclined with respect to the roof to act as a pivotable hinge allowing motion of the panel between a closed position and that inclined position. A two part fastener for the rear edge of the panel includes a handle pivotably connected to the underside of the panel and a tongue pivotably connected to the handle and adapted to be retained in a lock member in the frame. The handle acts as an over-center linkage to bend the panel against its curvature, forcing its perimeter into intimate engagement with the frame or may be extended to maintain the panel with its rear edge tilted upwardly away from the opening.

Abstract: A pivoted window frame is disclosed having an outer fixed frame and an inner pivotable frame together with a pivotable channel guide for a blind. An actuating mechanism on the movable frame can act to lock the movable frame in a closed position in the outer frame together with the channel guide or to release the movable frame for movement with or without the channel guide. The drive mechanism also actuates means for determining any one a plurality of pivoted positions of the movable frame and a sealing mechanism for urging resilient sealing lips into contact with the movable frame only when it is in its closed position.

Abstract: A door latch arrangement is disclosed to prevent a door from popping open when the door is subjected to pressure from the inside. Means are provided to restrain movement of the door latch until the door and latch have moved partially open, thereafter the door is free to manipulated to a fully open position.

Abstract: A door hold-open mechanism operatively connected to an upper door hinge member and including a combination latch wheel and detent plate, a detent plunger operable with the detent plate and a latch segment operable with the latch wheel, the arrangement adapted to provide a conventional two-position opening operation upon partial actuation of a door handle, or a predetermined number more than two hold-open positions upon full actuation of the door handle.

Abstract: A double door astragal is provided which comprises a rigid support member securable to the vertical edge portion of a normally inactive door, a rigid cover member securable in a plurality of positions relative to the rigid support member and mounted on the rigid support member with a U-shaped portion having an outer leg extending into the swinging path of the active door, and a flexible sealing member secured to the rigid support member and extending into the opening formed by the U-shaped portion of the cover member so as to contact the outside surface of the active door when the vertical edge portions of the active and inactive doors are in abutting relation, to provide an adjustable seal against weather.

Abstract: Door apparatus having spaced panels forming a closure and hanging in a vertical closing position and hung to swing back and forth as a unit, a latch mounted on the inner surface of each panel near the lower edge thereof and engaging a stop to prevent movement of the panel away from the other panel while permitting movement towards said other panel, and operating means on each panel operatively connected to the latch thereof. When either panel is swung towards the other panel it engages the operating means of the latter to operate the latch thereof to disengage its stop, thereby allowing the panel unit to swing out of the closing position.This invention relates to door apparatus which is normally latched in a closed position and which is unlatched to allow the door apparatus to move in either of opposite directions to an open position merely by the application of pressure against either of the two outer faces thereof.

Abstract: A door closure mechanism provided with a frame and a door adapted to be closed into the frame in a manner so as to provide RF shielding. The door is provided with a closure mechanism having a motor-driven threaded shaft mounted on a floating platform adapted to have several degrees of freedom with respect to the plane defined by the door. The frame includes a threaded receptacle adapted to receive the threaded shaft. Electrical switches are provided with respect to the door such that the threaded shaft will rotate uon reaching proximity with the threaded receptacle, thereby securing the door to the frame.

Abstract: A sheet of tempered glass, laminated glass or clear plastic forms a frameless window panel. Hinges and catch plates and pull handles are bolted adjacent the perimeter of the sheet through shock absorbing bushings with the sheet sealing against flexible sealing means secured around the window opening thus eliminating all frame members for the panel and reducing the weight of a conventional window by approximately 35% to 40%.

Abstract: The method of converting a jalousie-type window to a safety-type window, the steps comprising removing the hinges for each of the panels except one, removing the operating mechanism, interconnecting the panels to make a single unitary window, and adding operating means for activating and locking the single panel.

Abstract: A door is provided with an air-operated lock including a base structure mounted on the door adjacent the free vertical edge thereof, a bolt pivoted on the base structure for movement between retracted and extended positions, and an air cylinder between the base structure and the bolt for moving the bolt to its extended position. The air line from the lock passes from the door to the frame through a hinge capable of transmitting pressurized air.

Abstract: A locking cam plate for awning windows having a flat body portion adapted to be secured to the side wall frame of the awning window, slots formed on the body portion for pivotal and swinging movement of links connected to the awning window, an open slot formed on the forward edge portion of the body portion for receiving a locking pin mounted on the vent, the open slot forming a lip portion engaged by the locking pin when the vent is in a locked position and wall means connecting the lip portion and the body portion for strengthening the lip portion whereby the vent is prevented from being forcibly opened without actuating the operator.

Abstract: A security lock which secures a building entrance against unauthorized entry by linking together the outer and inner doors against their respective door frame stops. This invention comprises link members wherein one member thereof is anchored to the outer door and the other member is a hinged link which passes through the inner door and is prevented from being withdrawn by a manually operated latch. When the security lock is not in use, the hinged link is pivoted out of the way.

Abstract: A door for closing an opening through a pet confining wall in a building, kennel, pen or the like, said door having a peripheral frame for mounting in the wall opening, a door member having its upper edge portion hinged to the frame on a horizontal axis for swinging movement of the door in either direction from a vertical closed position within the frame, and a spring tensioned slide acting between the frame and a cam on the upper edge of the door to yieldably retain the door in closed position.

Abstract: A door hinged in a frame at one edge has a pivotal locking element along its other edge, with a longitudinal groove cooperatively receiving a counter-locking projection on the frame. The locking element includes a rotation stop to prevent the rotation of the door beyond closed position. The locking element is sufficiently rotatable about its pivotal mounting that its groove is disengaged from the locking projection for opening the door. A spring interconnects the locking element and the door for biasing the locking element in open or closed position. Grips are fastened respectively on one side of the door and to the locking element on the other side of the door. The rotation stop has an angularly arranged plate extending into an opening in the door with a projection on its free edge registerable with a corresponding projection on the door to limit opening pivotal movements of the locking element.