Abstract: The rear horizontal gate or tailgate of a truck is locked in a vertical or horizontal position by a pivoting horizontal bar. Fingers extend fixedly outward from the rear of the bed of a truck. The bar hinges are slit so that in the horizontal position they swing down over and grasp the fingers, holding the tailgate in a locked downward position. The tailgate is placed into an upward position by swinging the bar outward, freeing it from the fingers and raising the gate vertically. The weight of the horizontal bar swings down and the bar latches against the upper surface of the support fingers, holding the tailgate in a locked upward position. The tailgate thus can be locked in one of the two positions, up or down, while the truck is in motion without requiring the use of lock pins, simply by manipulation of the weighted horizontal bar and hinge member.

Abstract: A latch for securing together two relatively movable parts of a suitcase, pocketbook, or the like, has a latch housing secured to one of the parts and formed internally with a retaining guide, a strike secured to the other of the parts and engageable in the housing on juxtaposition of the two parts, and a button displaceable on the housing between an outer position and an inner position. The button is formed unitarily with a latching dog retainingly engageable with the strike when same is engaged in the housing and the button is in the outer position and with a retaining formation engaged inward of the retaining guide and preventing removal of the button from the housing. A spring is braced between the housing and the button and urges the button into the outer position.

Abstract: A locking device comprises a support attached to a door and a striker attached to an adjacent door jamb. A bolt carried by the support includes coplanar ends received in slot members of the support. A central offset section of the bolt carries a padlock which is movable between locked and unlocked positions. In the locked padlock position, the padlock body abuts a shoulder of the support, preventing the bolt from moving. In the unlocked padlock position, the padlock body moves downwardly to clear the shoulder and allow belt movement. The locking device is symmetrical about a vertical axis and accordingly can be used without modification on left-swing and right-swing doors. The support and bolt are designed to be made from simple stamped metal pieces.

Abstract: A sliding bolt locking structure has a housing which includes a back and right and left sides integrally formed with the back. A guide element is located on the housing between the sides. The guide element includes right and left side shackle holes for receiving the shackle of a lock. A member having right and left side panels is sized and shaped to fit in the housing between the respective sides of the housing. The left and right side panels of the member are spaced apart from one another a distance sufficient to allow positioning of a lock body between these respective side panels. The member includes a guide channel located in the side panels which fits over and slides on the guide element. The member slides on the guide element to position the shackle holes between the side panels of the member allowing for passing of a lock shackle through one of the lock shackle holes when the member is positioned with respect to the lock shackle hole. Bolt holes are formed in the respective sides of the housing.

Abstract: A burglar bar assembly mountable over a window or door opening in a building may be quickly manually released from an interior portion of the building. The manual release mechanism is actuatable without a need for keys, or the like, so as to allow a building occupant to escape through the window or door opening in an emergency situation.

Abstract: A latch assembly for recreational vehicle doors in which a closure door and a screen door are hinged about common axes includes a latch bolt which is adapted for mounting on a vertical stile of the screen door and is movable into engagement with a keeper plate. A latch bolt retainer is mounted on an inside surface of the prime closure door. The latch bolt retainer has portions which cooperate with the latch bolt on the screen door such that when the prime closure door is closed against the screen door, the retainer captures the latch bolt on the screen door and retracts it from the keeper and retains the latch bolt in a retracted position. The capturing movement is accompanied by alignment movement of the screen door latch bolt with respect to the retainer so that the screen door is held in a predetermined aligned position in the retainer.

Abstract: A bolt mountable on adjacent members, such as a door and a door frame, to hold the members lockably secure, comprises a bolt assembly on a first member and a keeper assembly on the second member. The bolt assembly includes a flat, elongated slide bolt slidably therein. The slide bolt has a locking pin opening at one end to receive and hold securely a locking pin of the keeper assembly, and a control stem at the other end extending through a slot in the bolt to the exterior. A pair of shoulders at the end of the slide bolt define a narrow passageway communicating with the locking pin opening. A narrow stem is connected axially to the locking pin and extends through an opening in the keeper assembly cover to the exterior of the bolt. A coil spring below the locking pin urges the locking pin toward the exterior.

Abstract: A safety lock mechanism for a cleaning wand. A three position slide switch alternately engages a pivotal trigger and/or a pivotal door on the end of the wand handle opposite the cleaning head. In the first position, the trigger is locked and the door openable. In the second position, the trigger and door are both locked. In the third position, the handle door is locked but the trigger is operable. Controlled engagement of the trigger and/or door with the slide switch prohibits unwanted loss or discharge of cleaning fluid.

Abstract: A door locking device is provided for securing a door with a dead bolt having a thumb knob on the inside of the door for throwing a dead bolt into a striker plate with the door jamb. The door locking device has a support body attached to the inside of the door, a dead bolt slide slidably engaged with the support body, and a keeper attached to the door jamb with at least one keeper hole lying in a plane substantially perpendicular to the plane of the door in the closed position. The dead bolt slide provides a second dead bolt locking function by engaging the keeper while simultaneously rendering the dead bolt lock within the door unopenable with a restriction means that restricts rotation of the thumb knob from its locked position.

Abstract: Security gratings covering windows of buildings are quickly and reliably opened only from the interior of the building by hinging the grating at a first end and having at the second end short end bars that extend through holes to the interior of the building. A locking bar vertically slideable in bushing members attached to the interior wall has hook portions that extend out and engage the end bars to prevent the grating to be hinged open. The lower end of the locking bars is locked against vertical movement by a quick release pin that engages the locking bar and a fixture attached to the wall near the floor and out of reach of an intruder reaching in the window. To open the grating it is only necessary to pull the pin and vertically move the locking bar to release its hooks from the ends of the end bars.

Abstract: Security gate apparatus for securing building openings in the nature of window and door openings are disclosed; and comprise a security gate including gate-carried locking means which, while of particularly sturdy construction and effective to render it extremely difficult if not impossible as a practical matter to open the security gate from without the building opening, are nonetheless virtually foolproof in operation, and which are very readily and conveniently openable from within the building, even by those of somewhat limited mental and/or physical capacities, in readily apparent manner to thereby insure virtually immediate exit from the building through the building opening for the building occupants in emergency situations.

Abstract: A locking mechanism for a bipartite keyboard housing the lower part of the keyboard has clearances at at least one side, preferably at the front side, hooks secured to the upper part of the keyboard extending into the clearances. A lock rail is displaceably disposed in a channel communicating with the clearances, being provided with obliquely upwardly bent contact tongues at the spacing of the hooks and with contact humps. A web is situated in the middle of the sides of the lower part of the keyboard, preferably at the front side, and an opening is situated in the lock rail, these being aligned with one another such that the lock rail is displaceable by means of a tool.

Abstract: A latching and locking mechanism for sliding doors such as patio screen doors and the like, wherein a latch hook engaging a keeper may be unlatched by operating either an inside or an outside slide member, and the latch hook may be locked by a locking mechanism operable only from the inside of the sliding door. The latching and locking mechanism is lengthwise functionally symmetric so that it may be utilized either in doors opening from left to right or doors opening from right to left. The locking function is performed by a locking bolt which is cammed into position by an angularly disposed cam slot of a bolt actuator.

Abstract: A lock for a horizontally sliding window including a base member attached to a window sill and a catch member slidably mounted on said base member for movement between a locked and unlocked position. The sliding catch member includes a window rail barrier portion for preventing horizontal sliding of a moveable window sash and a catch portion for preventing vertical movement of the slidable window sash to prevent removal of the entire window sash from the outside of a building.

Abstract: A surface bolt which is latched against retraction when in a latching position and requires movement transverse to its length in order to unlatch the bolt for retraction.

Abstract: In a goods transporting or handling receptacle or cart made of metal wire, the lateral walls are adapted to be folded on the bottom thereof and at least one of said lateral walls comprises a notch-like aperture having a shutter hingedly mounted at its bottom edge. Mounted on each side of said one wall is a locking device comprising a sliding bolt engaging a pair of lugs carried by a carrier plate rigid wth said one wall side and formed with a shoulder portion acting as a keeper to said sliding bolt.A resilient clamp is adapted to be engaged by a control member rigid with said sliding bolt for holding the latter either in an intermediate position, in which said shutter is locked in its closed position and said one wall is locked with respect to the adjacent lateral wall, or in a first end position in which said sliding bolt is released from said shutter to permit the opening thereof, or in another end position in which said sliding bolt is released from said adjacent wall.

Abstract: An external steel grating has seven vertical bars welded at their ends to upper and lower horizontal hollow cross bars, end portions of which cross bars are bent rearwardly and secured to a building so that the grating overlies a window opening and protects it against illegal entry.One end of the grating has a loosely hinged connection with the building and the cross bars are jointed near the opposite end of the grating and locked in assembled relation by a hidden bolt in one of the cross bars. A cable from said bolt extends through the last mentioned cross bar to the interior of said building, which cable, when pulled, withdraws the bolt from its locking position and frees the joints for separation by gravity allowing the major hinged portion of the grating to swing freely outwardly and affording a ready escape from the building through said window.

Abstract: A latching structure characterized as a member having a portion slideable along an edge of a hinged cabinet door, where, when in a fully operative or latching position, another portion thereof engages the frame surrounding the door opening, whereby the door remains in a closed position during transporting and installation to prevent unwanted opening and damage.

Abstract: The X-ray cassette consists of a substantially rigid lower section and a resilient cover which has a convex curvature relative to the inside of the cassette in its non-distorted state. The closure system is in the form of a snap-action closure system, consisting of a bar which is displaceable parallel to the front of the cassette in the lower section thereof and which is formed with beads or has cams rivetted or soldered onto it. When the cassette cover is pressed against the lower section of the cassette, these cams or beads engage in corresponding beads or cams on the end face of the cassette cover.