Abstract: A remote lock assembly for vertically pivoting windows has two resilient catches mounted in the vertical stile of a window sash one above the other. Opposite the lower catch is a cam housing with a recess in which the lower catch is engaged when the window is in a locked position and containing a cam which, when rotated, rides against the catch to force the catch out of the cam housing to unlock the window. A flapper housing is mounted in the window jamb and has a recess for engaging the second catch. A flapper is pivotally mounted to the flapper housing and pivots between a locked position in which the flapper does not block the housing recess and an unlocked position in which it blocks the housing recess and forces the opposing catch out of the flapper housing recess. A link connects the cam to a bar which slidably extends into the flapper housing. The bar has a protrusion which engages the flapper, such that rotation of the cam operates to disengage both catches from the window jamb.

Abstract: A positive position indicator that is used on a variety of non-rotatable, cabinet slam-action pawl latches is disclosed. The indicator uses stored spring forces, stored in a thin, twin-leafed flat spring having a plurality of spring bends therein, to react against a latch keeper attached to the cabinet frame. The stored spring forces cause a spring tab to dislodge the latch pawl from an adjacent flat surface and move the latch housing and cabinet door away from the frame.

Abstract: A latch device including a latch element, latch element moving means for moving the latch element including a transmission arm and two relatively movable cam elements, and means for moving the transmission arm relative to the cam elements to cause selective engagement between the transmission arm and lobes of either or both of said cam elements.

Abstract: A lock for doors or the like with a case (8) having a longitudinal axis (9), a locking member (16) mounted in the case to be slidable parallel to the longitudinal axis, a bush (29) mounted in the case to be rotatable about an axis of rotation arranged at right angles to the longitudinal axis, and a drive having driving parts (35, 37, 21, 23) on the locking member and on the bush for converting rotary movements of the bush into sliding movements of the locking member, the locking member being slidable by rotation of the bush at least out of a locking position into a retracted open position. So that the driving parts and the bush can be made sufficiently stable even with a small over-all height or a small total cross-section of the lock, the driving parts are arranged both in the locking position and in the open position of the locking member (16) in a space in the lock case (8) located between the closing member (16) and the bush (29).

Abstract: An adjustable latch bolt mechanism is mountable on a door for aligning a latch bolt with an opening in a strike plate on a facing door jamb. The latch bolt mechanism comprises a latch body movable in one direction to a normal extended position causing a latch bolt supported by and slidably mounted at one end of the latch body to engage the opening in the strike plate. A coupling mechanism couples the latch bolt to the latch body for slidably adjusting the latch bolt for movement in a direction transverse to the one direction to a selected position in which the latch bolt is in alignment with the strike plate opening.

Abstract: A latch assembly for a lock adaptable for use with inswinging, outswinging, right hand and left hand mounted doors includes a latchcase assembly having a vertically extending slot. A bolt is mounted for sliding movement within the latchcase. A first rotatable cam having a hub is mounted within the vertical slot of said latchcase assembly for sliding the bolt between bolt engaged and disengaged positions. The height of the latchcase slot is larger then the diameter of the hub portion of the cam to accommodate limited vertical movement of the cam within the slot. The vertical position of the cam is shifted within the vertical slot to maintain the horizontal center line of the cam in a predetermined spaced vertical position relative to the horizontal center line of the bolt.

Abstract: This invention is a kind of tubular lock with an adjustable device for two-size setting. Changing the lock into two sizes is accomplished by the two different combinations of the U-shaped hole of an inside cylinder with a projected ball of an outside cylinder and the two different combinations of the U-shaped hole of a location tube inside a dead bolt with the teeth of a moving plate.

Abstract: This tubular lock has a device that can adjust its size into two kinds for fixing on a door. The device utilizes the movement of an extending plate and an auxiliary plate, changing their positions to either of the two sizes, but the lock still works in spite of the size change.

Abstract: A latching assembly particularly well suited for being mounted on the outside of an insulated door without having to disturb or reduce the insulating material, and which is concealed from view by a channel-like handle used for opening the door. The latching assembly includes a helical cam that rotates as the handle pivots and further includes a follower that is driven by the helical cam parallel to the axis of rotation. The latch bolt is attached to this follower, whereby pivoting motion of the handle is converted into translational motion of the latch bolt.

Abstract: An adjustable latch for a lockset for adjusting to either of two backset positions including a first cylindrical member having a first particular diameter. A second cylindrical member has a second diameter larger than the first diameter and with the first and second cylindrical members located in a telescopic arrangement for providing a telescopic adjustment between the cylindrical members. A first detent is interconnected between the first and second cylindrical members and has two detent positions corresponding to the two backset positions. A latch is located within the first cylindrical member. An actuating member is located without the cylindrical members at a position opposite to the latch for actuating the latch between open and closed positions. A second detent interconnects the latch and the actuating member and includes two detent positions corresponding to the two backset positions.

Abstract: An infant carrier and base are provided with locking features which include a spring-mounted bolt protruding laterally from the base and a hollow or aperture in the carrier which engages the bolt when the carrier is inserted into the base. The upper surface of the bolt is sloped so that the carrier forces the bolt inward (to a retracted position) as the rim of the aperture slides over the protruding end of the bolt. A spring snaps the bolt back into place once the carrier is fully inserted and the aperture is aligned with the bolt. The carrier contains a lever arm whose fulcrum is positioned adjacent to the aperture. A spiral cam protrudes from the fulcrum to engage a knob extending upward from the side of the bolt, so that when the lever arm is rotated the cam urges the knob backward, retracting the bolt and permitting removal of the carrier from the base.

Abstract: A latchbolt has an adjustable backset made possible by the selection of one of a plurality of insets to interfit with the latchbolt actuator stub. The insets provide a selection in the distance between the actuator work shoulders and the end of the stub. A sleeve telescopes over the latchbolt tailpiece to hold the inset in position.

Abstract: The backset of a deadbolt lock may be adjusted selectively between 23/8" and 23/4" by manually shifting a spring-loaded pin which extends through vertical slots in the lock bolt, U-shaped slots in the driver bar and inverted L-shaped slots in the lock case. The pin also connects the driver bar to the bolt and causes the bolt to move between extended and retracted positions when the operating spindle of the lock is turned.

Abstract: A tool-operated flush-mounted slam latch for a hinged door or panel comprises a slide, a cover, a cam connected to the cover, and a biasing spring for urging the slide forwardly toward a latching position. The slide is retracted to door-opening position by using a tool to operate the cam. The latch is quickly installed in a rectangular hole pre-punched in the door without use of any fastening means by merely pulling the slide rearwardly to a retracted position which is rearwardly beyond that to which the tool-operated cam is capable of retracting the slide. When installed, the cover of the latch is substantially flush with the outer surface of the door.

Abstract: A door latch mechanism for controllably securing a door, the latch mechanism of the type having a spindle and operating handles, comprises a fusible connecting member rigidly attaching the handle and spindle at room temperature, the fusible connecting member melting at elevated temperatures to permit relative rotation of the handle and spindle. The handle is mounted using a connecting member which is attached to the latch trim using a screwless connection. This is particularly applicable to latches using lever handles in that a positive positioning mechanism holds the handles at their selected positions, regardless of wear and age.

Abstract: A sash lock for sliding windows as for example in vehicles such as buses is provided. The lock has a minimum of moving parts (two), and great strength. The lock comprises a lock body having a projecting latch plate which is adapted to engage a slot in a track adjacent a sliding window. The latch plate has an upper unitary lip which is engaged by downwardly projecting members on the latch handle, and there is an associated spring normally urging the latch plate toward the slotted track. Pivotal movement of the handle, in either direction, causes the latch plate to be released from the slotted track so that the latch and its associated window may readily be moved along the track.

Abstract: In a door lock with spring bolt and dead bolt the lock follower body injection molded from thermoplastic synthetic resin is rotatably mounted in the lock case and resilient in itself without bias and without being influenced by any spring force when by radial movement of the lock follower body a plurality of legs extending therefrom bears against retaining pins and develops spring action by bending.The required spring load on the tumbler is effected by the provision of a free leg at the tumbler which rests unbiased against a stop pin and resiliently bends upon actuation by the key. The mounting of a door fitting at the door panel is facilitated by bores through sleeves provided in the lock case.The inexpensive fabrication permitting at the same time a maximum possible degree of dimensional precision is achieved by making both the lock case and the interior parts from thermoplastic synthetic resin containing no plasticizer. Preferably a polyacetal is used for the interior parts.

Abstract: Cam operated lock comprises a latch mobile against a spring along a tubular guide. The latch is operated by way of a cam which can be rotated against a spring by a manually operating member, preferably a handle. The handle needs to be turned through only a small angle for opening the lock. The lock can be fitted to both right hand and left hand opening doors with little adaptation, and in both these positions the lock is opened by turning the handle downwards.

Abstract: A reversible door latch particularly suited for use with narrow style doors. Door latch includes a housing mountable on a door, the housing having confronting side walls, each having an opening therein; a latch member having a latch bolt at one end, the latch member being mountable in the housing in either a first position in which the latch bolt is movable through the opening in one of the side walls or a second position in which the latch bolt is movable through the opening in the other side wall; and a handle rotatably secured to the housing and operatively connected to the latch member for retracting the latch bolt into the housing.

Abstract: A door latch particularly for use in mobile homes or recreational vehicles. A housing having a channel formed therein is mounted on one surface of a door overlying a passageway therethrough. A spring-loaded slidable latch engagement member is positioned within the channel for operating engagement with a striker plate mounted on the jamb of the frame against which the door abuts when closed. A latch retaining pin is positioned through the housing and has a shaft part extending within the passageway in the door for receipt on the other side of the door surface of an operating knob or handle secured thereon. Rotation of the operating knob actuates the pin to disengage the latch engagement member and thereby unlatch the door. A lockable abutment member may be positioned upon the door surface or an extension part of the housing to block the path of the latch engagement member when moved toward disengagement position and thereby prevent such disengagement.

Abstract: A mortise lock having an entrance and apartment function and including a spring projected latch bolt, a latch bolt retracting mechanism having an L-shaped retractor rectilinearly moveable in response to rotation of either an inner or an outer rollback hub, a snap action toggle operated stopworks for locking the outer rollback hub, and a deadlocking mechanism including a deadlocking lever controlled by an auxiliary bolt and moveable into and out of blocking relation with the latch bolt in its projected position. An abutment on the deadlocking lever cooperates with an abutment on the lock case when the deadlocking lever is in its deadlocking position to resist transmission of force applied to the latch bolt in a retracting direction.

Abstract: A door lock wherein a generally U-shaped body straddles a door edge, the U-shaped body carrying a retractable bolt, actuating knobs or the like, interconnecting means between the bolt and actuating means, and suitable locking and releasing means.