Abstract: A safety hasp (10) is attached to a door (14) and a door frame (16) of a walk-in cooler by threading a rod (35) from inside the cooler, through a bore (34) in door (14) into an aperture (37) of a hasp hinge plate (25) or staple plate (29). The trailing end of rod (35) has a handle (38) which can be turned to release hasp (10) for unlocking door (14) from inside the cooler. Handle (38) has a disc portion (39) including an illuminator (40) for providing temporary "emergency" lighting.

Abstract: An openable rotatable shell which is positioned on and encloses a conventional key lock door knob. The shell freely rotates and prevents exerting a turning force on the knob. Since the keyhole on the knob is covered by such shell, the door cannot be opened until a second lock provided on the shell is opened allowing the shell to be removed from the knob.

Abstract: A swell latch assembly is mounted in an aperture formed in a first member for releasably retaining the first member against a corresponding second member and in a latched position. The swell latch assembly includes a handle which is adapted for pivotal rotation. A shaft is included comprising a unitary member which is connected with the handle. The handle is adapted to facilitate axial movement of the shaft as the handle is pivotally rotated between open and closed positions. A bushing is provided on the shaft which is adapted for axial movement corresponding with movement of the shaft. The bushing is adapted to releasably retain the second member in engagement with the first member when the handle is in its closed position. A retaining member is also included in connection with the shaft which is adapted for securing the bushing in its mounted position on the shaft.

Abstract: A ratchet type vehicle closure latch is secured to a vehicle door by a pair of bolts. One is located in proximity to engaged teeth of a rotatable ratchet and pawl and the other is located in proximity to engaged portions of the ratchet and a striker. The closure latch has a plastic housing that includes a thin integral plastic sleeve that breaks away in service to provide a sleeve bearing that eliminates metal-on-metal contact between the rotatable ratchet and a ratchet stud. The ratchet stud and a pawl stud hold several parts of the door latch together. The door latch has several non-metallic parts and an insert molded ratchet for minimizing the metal-on-metal engagement, operational noise and lubrication requirements. Some parts are non-handed and other parts are identical to reduce manufacturing costs.

Abstract: A pawl latch that provides an integral gripping feature to facilitate opening panels and a visual indication of latch closure. The front portion of the latch has two pieces. In the open position, the two pieces are positioned with respect to each other so that the top piece reveals a colored face of the bottom piece. The colored face of the bottom piece can be observed at great distances from the latch. In the closed position, the top piece totally covers the bottom piece so that no color is visible on the latch. Further, in the open position, the front piece is at right angles to the bottom piece, and the front piece is positioned away from the panel so that it can be easily grasped with two fingers to allow the opening of an attached panel. Also, the latch is designed to be attached to a surface of the panel that is not horizontal to a frame to which the panel is to be secured to by the latch.

Abstract: Methods and devices for locking the door or flap of a typical pick-up shell closed from the interior of the shell employ a substantially rigid member which is selectively secured to moving parts of the existing latch mechanism to prohibit such moving parts from moving and, to, thereby, selectively prohibit the latch mechanism from unlatching or unlocking the door or flap of the shell. In order to lock the shell door or flap, the substantially rigid member is abutted against and secured to moving parts of the latch mechanism from the interior of the shell. In this manner, a person inside of the shell and pick-up bed may secure the flap or door in a closed position and prohibit the flap or door from being opened by prohibiting movement of the moving parts of the latch mechanism.

Abstract: A single handleset 10 with an adjustable retracting mechanism 11 includes a handle 20 and thumbpiece 32 which operates a rack 48. A pinion 70 is in mesh engagement with rack 48 at all times. A spindle 84 is connectable to pinion 70 in either of two positions determined by the righthand or lefthand orientation of a door 18 to which assembly 10 is mounted. Spindle 84 is adjustable without decoupling pinion 70 from rack 48 to insure proper orientation of the spindle relative to the pinion for effective operation of a latchbolt assembly 140.A double handleset 210 with the adjustable latch retracting mechanism 11 includes a pair of handle units 212 and 234 and also provides the versatility of adjusting spindle 84 independently of pinions 70 to accommodate either a righthand or lefthand orientation.

Abstract: An apparatus secured to a framework of a sliding window or door framework to receive a frame flange therewithin and provide an abutment plate to effect abutment and prevent unwarranted opening of a sliding framework relative to the fixed framework. The rigid body includes a slot to receive the framework flange therewithin, with an abutment flange mounted to a top wall of the body providing abutment for the framework slidably mounted relative to the fixed framework. A modification of the invention includes a plurality of rigid bodies mounting an abutment housing, with the abutment housing including an actuator rod displaceable relative to the abutment housing to effect actuation of a signal member defined as an inflation balloon upon deflection of the actuator rod relative to the housing.

Abstract: A method for repairing or protecting doors which includes a kit having the components to form, when assembled, a single U-shaped unit which when installed covers the area around the door latch. The repair kit comprises a multi-component system including front and rear panel pieces; one or more edge panel pieces of varyng widths, and a strike plate large enough to cover any damaged areas. The repair kit is designed for use on standard thickness doors.

Abstract: In order to keep the latched condition of a door lock proper even when the associated door is considerably deformed due to a vehicle collision or the like, the outside lever extending from the door lock proper is provided with a pointed portion which is directed toward an outer panel of the door. Upon deformation of the outer panel, the pointed portion is forced to stick into the deformed outer panel establishing a locked engagement therebetween and thus preventing the door lock proper from taking the unlatched condition.

Abstract: A shoe for slidably and rotatably mounting a door latch control rod on a vehicle door includes a molded plastic body rotatably mounted on the door and having a slot formed therein for receiving the rod. The slot is defined by first and second conical converging walls projecting into the plastic body and intersecting one another to define a C-shaped edge circumjacently engaging the rod in slip fitting rattle free relationship therewith so that the rod may slide through the shoe upon operation of the door control rod by the occupant.

Abstract: A control cover device is supplied in kit form and to be assembled and fitted by the user to a piece of equipment having a front control panel and opposite side walls projecting rearwardly from opposite ends of the control panel. The device comprises a cover which is pivotally, or otherwise moveably secured to the apparatus by means of mounting members which are attachable to the opposite side walls of the equipment casing, and to which the opposite ends of the cover are suitably attached.The mounting members are each provided with a catch for releasably retaining the cover in a control-covering position. The cover includes an elongate screen piece which can be cut to a length suitable for the particular equipment, and the mounting members are of plate-like form.

Abstract: The pushing in of the push-button of the cylinder lock is detected by detecting the associated motion of the locking rod. An electronic signal is provided upon the detection of such motion. In specific embodiments, the detector consists of a switch mounted on either the locking rod or locking rod cylinder, and an associated cam mounted on either the locking rod cylinder or the locking rod.

Abstract: An extension unit for a door lock in which it is possible to readily change the backset of the door lock unit to accommodate standard backsets of 23/8 inches and 23/4 inches. The extension unit comprises an extension element, a connector element and a housing element, all of which, in combination, permit the backset to be easily and readily changed.

Abstract: An adjustable deadlatch for a lockset for adjusting to either of two backset positions. First and second cylindrical members are located in a telescopic arrangement for allowing a longitudinal telescopic adjustment between the cylindrical members. First longitudinal adjustment structure is interconnected between the cylindrical members and includes a first vertical slot and a first pin member located within the first vertical slot and includes a first rotatable member supporting the first pin member at a radial position. A deadbolt, located within the first cylindrical member includes a longitudinal opening. An actuating member includes a longitudinal portion located within the longitudinal opening. Second longitudinal adjusting structure is coupled between the deadbolt and the actuating member and includes a second vertical slot and a second pin member received within the second vertical slot and mounted on a second rotatable member at a radial position.

Abstract: A lever adapter for use with door knobs for aiding arthritic patients in rotating the door knob. The lever adapter is attached to the door knob by a concave, arcuate member having a layer of adhesive. Pulling upon on or pushing down on the lever adapter will cause the simultaneous rotation of the door knob in one direction or the other, whereby linear motion is converted to rotary, in order to obviate the pain and discomfort associated with the turning of a door knob by arthritic persons.

Abstract: An improved latch bolt is disclosed that has a single sliding tail with two pairs of prominences permanently fixed to the tail that the latch bolt has variable driving pin depths.

Abstract: An elongated handle having an interior coil spring and a flexible jacket positioned over the spring is screwed into a terminal portion of a conventional automobile door lock actuation mechanism. The application of lateral forces to the handle by a thief will cause the handle to be bent owing to its high lateral compliance in directions transverse to the longitudinal axis of the handle, to prevent a thin, manually actuated tool from grasping the handle to a sufficient extent to enable the lock to be "popped" open.

Abstract: A device for centering and securing a pair of door handles in a door having hole of circular cross section and a mortise lock with a square door handle mandrel. The device consists of 2 sets of three plate-shaped bodies engaging one another, the outer one having a hole for the bearing of a door handle and being larger than the door hole, a central body having essentially the same diameter as the door hole, and an inner body smaller than the door hole, all having a central hole for passage of the mandrel. The inner body and the outer body are clamped together by screws which pass through recesses in the central body. Consequently, the inner and outer bodies can be shifted in relation to the central body to compensate for any lack of alignment between the mandrel and the door hole prior to tightening of the screws. Then the screws are tightened so that the outer body and the inner body are clamped together around the central body and then the 2 sets are clamped to each other.

Abstract: An auxiliary lock has a base, an extending shell and a linking arm that, through holes, slots and projections disposed thereon connect adjustably together for lengthening or shortening the assembly while maintaining constant the length of the dead bolt exposed out of a cylinder into a faceplate.

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: A latch assembly includes a hook having an opening engageable to a keeper. A side plate having a straight slot and an angle slot is mounted to the hook via posts. A spring is provided to bias the plate so that it partially overlaps the opening. The plate prevents a latch handle from being moved into its closed position unless the hook is fully engaged onto a keeper.

Abstract: This auxiliary lock has a main cylinder, an extending cylinder, a linking plate, a dead bolt, an assembling plate and a fixing plate that, through the screwed notch and a fixing pin can connect selectively together in a short or long position and is therefore able to change the distance between the fixing plate and the assembling plate.

Abstract: An exit device primarily designed for outwardly opening doors comprises a rigid plate member having mounted thereon a latch-bolt assembly anchored to a door member and a strike assembly mounted on a door frame member in operative association with the latch-bolt assembly, wherein the plate member includes projections positioned to be on each side of the latch bolt of the latch-bolt assembly, and wherein the strike assembly includes recesses for receiving such projections. The recesses in the strike assembly are configured in relation to the projections to allow limited vertical movement of the projections within the recesses. When the device is subjected to a major force such as in a fire the projections will restrict linear growth of the frame member in the latch area by engagement of the projections, with the walls of the recesses thereby preventing excessive strain from occurring on the latch bolt which can lead to disengagement of a latch bolt from the strike.

Abstract: An operating handle mechanism for remotely actuating a closure latch including a handle mounted on a housing by a pivot. A coil spring anchored on the pivot has a first end seated on the housing and a second end seated on the handle to bias the handle to a normal unactuating position. A yieldable plastic button member mounted on the housing projects into the path of movement of the second end of the spring during actuating movement of the handle. During movement of the handle to the actuating position the second end of the spring is carried into engagement with the yieldable plastic button member and is temporarily unseated from the handle, and then snaps past the button member to again seat on the housing during further movement of the handle to the full actuated position, thereby providing a perceptible audible and tactile signal to the operator confirming actuation of the handle and the remote latch actuated thereby.

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 latchbolt slide extension for a cylindrical lockset which comprises a spring-loaded latch and a cylindrical body. The slide extension is connected to the spring-loaded latch and the cylindrical body so as to make such cylindrical lockset with a shorter backset latch to be installed to a door with a larger backset.

Abstract: This invention relates to a tubular door lock which mainly includes a basic shell, an extending shell, a dead bolt, two assembling plates, a safety bolt, a locking plate and an unlocking plate. Through apertures, notches and holes disposed thereon, it can connect seletively together in a short (60 mm) or long (70 mm) position, and is therefore able to change the distance between the knob and the faceplate of the lock via adjustment of the extending shell.

Abstract: There is described a fire-break door comprising a swivelling leaf provided with at least one lock with draw-bolt which can be controlled by an operating member, said leaf cooperating with a door-closer allowing to swing said leaf back automatically to the closed position thereof, in which means are provided on the one hand to retain the lock bolt in a recessed or withdrawn position when the door leaf lies in closed position, and on the other hand to let the bolt be released and enter the keeper of the lock with an abnormal rise in the temperature adjacent the door.

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: A control button assembly for positioning an operating rod to "lock" and "unlock" a vehicle door lock includes a sleeve member and a button member. The button member has a hollow stem portion for threading onto an upper end region of the operating rod. The sleeve member is a tubular part that surrounds the stem of the button member. The sleeve member is mountable on a window sill of a vehicle door structure, with portions of the sleeve member extending through a sill opening to surround the threaded upper end region of the operating rod. The sleeve member has a plurality of integrally formed, resilient fingers that depend from the sill as they extend alongside the stem of the button. The fingers have inwardly turned tip portions that frictionally grip outer surface portions of the stem. The frictional grip of the fingers on the stem acts as a detent to assist in holding the button in its lowermost or "locked" position.

Abstract: A spindle assembly is provided for retracting a latch bolt of a lock set having separate independently rotatable inside and outside latch bolt-retracting hubs. The spindle assembly includes an inside spindle for operating the inside hub, an outside spindle for operating the outside hub, and a connection member for rotatably interconnecting the inside and outside spindles. The outside spindle includes an inner spindle portion for engaging the outside hub, an outer spindle portion for supporting a lever handle or the like, and a frangible portion interconnecting the inner and outer portions. The frangible portion is configured to transmit spindle-twisting torque from the outer spindle portion to the inner spindle portion in response to application of a torque in excess of a first predetermined amount.

Abstract: A leaf spring bent at its midsection to form operating legs spaced about 120.degree. apart. The legs can be compressed together with finger pressure and the spring then inserted over a defective coil spring of Corvette door latch/handle assembly. When fully inserted the spring functions in the same way as the original spring before same became damaged.

Abstract: A flexible flap, having an elastic memory, which flap is used to normally cover a lightwave connector so as to prevent laser radiation emissions from the connector. The flexible nature of the flap allows the forcible deflection thereof, so that a mating connector can be attached to the normally covered one, and yet when the mating connector is removed the flap will automatically return to the covering position. In addition to preventing the emission of laser radiations, the flap can reduce contamination materials, such as dust, from covering the end of the fiber optic material.

Abstract: An improvement for a dead bolt assembly having a dead bolt mounted movably in a bolt casing and a crank plate mounted in an extension housing at the rear side of the bolt casing to move the dead bolt upon actuation of a lock, comprises an adjustable bolt extension member which has a fixed plate member and an extensible channel member pivoted to the fixed plate member, and a crank plate mounting means which is mounted movably in the extension housing to hold the crank plate in a movable position so that the crank plate can be kept in a cooperative relationship with the extensible member.

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 latch bolt assembly of this invention features a novel cam activating assembly which permits election of one of two door knob spindle backsets which are in standard usage without the need for substituting different operating assemblies or reversing door knob or spindle components. The cam activating assembly features two intersecting rotatably mounted cams which operate about two separate and parallel axes which are the centers of the two spindle backset in common industry usage and further the two cams form a common intersecting aperture for accepting the door knob spindle in one of the two predetermined backset positions. Each cam is capable of independently operating the latchbolt in either direction of rotation through radially extending cam ears which coact with the latch operating plate to convert the rotary motion of the cams to the reciprocating motion required to retract the bolt.

Abstract: Herein disclosed is a door latch operating device which comprises a stationary member fixed to the door, a first movable member movable from a first position to cause the door to be locked to a second position to cause the door to be unlocked, a second movable member hingedly connected to the stationary member, and a third movable member having one end hingedly connected to the leading end of the second movable member and the other end pivotally connected to the first movable member. With this arrangement, the movement of the second movable member induces the movement of the first movable member, and vice versa.

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 lever for controlling a lock of an automobile door is mounted on the door and projects from the door. A shield is fixed to the door, and lies parallel to and inward of the lever so that the lever lies behind the shield as seen from the automobile passenger compartment. The shield extends forward of the free end of the lever to prevent access to the control lever when the door is in its closed position.

Abstract: A vehicle includes a side body defining an opening. A sliding door covers the opening when the sliding door is in its closed position. One of a lock frame and a lock strike is fixed to the sliding door, and the other is fixed to the side body. A device serves to prevent the lock strike from directly contacting the lock frame when the side body and the sliding door in the closed position relatively approach each other out of their normally positional relationship.

Abstract: A device for keeping a door, a window, a shutter, etc., in a closed position. The device comprises operating elements housed in a casing attachable to a bar. The operating elements are connected to an element maneuvering at least one bolt.A lock part of the device is formed as an insert of a predetermined dimension having a lock of an optional lock type therein and arranged for being inserted directly into the housing within a space of a corresponding dimension.

Abstract: A clip for retaining the door operating lever of the bulkhead door on a ship includes a generally rectangular polyethylene body for mounting on a bracket on the door frame. A keyhole-shaped recess is provided in one side of the body for receiving the lever. A slot in the same side of the body adjacent to the recess facilitates flexing of the sides of the recess so that the lever can enter the circular inner end of the recess.

Abstract: A bolt unit for providing different amounts of backset has a bolt housing detachably joined to any one of several subframes made up of pairs of identical side plates of different length. A bolt, reciprocable in the housing, is actuated by mechanism supported on the subframe, that mechanism including one of a selection of hooks of different lengths corresponding to the different backset lengths.

Abstract: A bolt is movable in a door-mounted casing between extended and retracted positions relative to the door edge by a latch operating mechanism including a transverse half-round spindle. The spindle actuates the latch operating mechanism by engagement with a longitudinally forward engagement surface of an insert assembled with the latch operating mechanism in spindle forward backset position, the motion being transferred longitudinally rearwardly by the insert into the latch operating mechanism and then forwardly to the bolt. The insert is in motion transferring connection with rearward projections of the latch operating mechanism retained in assembly partially by a casing rearward extension and partially by a casing telescoping removable sleeve.

Abstract: A replacement hasp for a railroad sliding door lock mechanism, a kit for making the hasp, and method for making the replacement using the kit are disclosed in two embodiments. The kit includes a member which partially defines an eye, sized to fit loosely about the existing hasp-retaining link on the car, and an eye-completion member arrayed to mate with the first member and form a replacement hasp when affixed thereto, as by welding with shear welds. In the first embodiment, the first member is generally U-shaped and the second member includes a tongue portion which mates between the ends of the partial-eye-defining member such that the two can be "telescoped" together to form a replacement hasp of different lengths to accommodate changes in the door or door jamb of the railroad car. The two main members include furrows extending along the parting lines between them so as to aid in welding the main members together and to form a stronger affixture than is possible under the prior commercial practice.

Abstract: A safety latching apparatus for a cover of a machine enclosing a round rotatable member. The apparatus includes a latch member, and an elongated flexible control element for sensing the motion of the rotatable member to automatically prevent opening of the cover when the member is rotating. The control element is movable longitudinally so that one of its ends can be brought into contact with the rotatable member and the other end connected to a latching mechanism located adjacent the machine cover. When the rotatable member is stationary, the end of the control element brought into contact with it remains generally rigid to a force in the longitudinal direction allowing the latch member to move to an unlocked position.

Abstract: A door locking knob which has a knob body including an engaging hole perforated in non-circular cross section, and a rod for insertion into the hole and including cutout surfaces formed therealong and engaging portions at the ends for securely engaging the knob body upon turning of the knob. The knob body has a leg portion, and a pair of guide grooves formed axially on both side surfaces of the leg portion. When the rod is inserted into the engaging hole of the knob body and is turned at 90.degree. to engage the rod with the flat inside surfaces of the engaging hole of the knob body to securely implant the rod at the engaging portions into the side surfaces of the engaging holes of the knob body, so as to eliminate the necessity of internally cutting screw threads in the knob body, mounting of the door locking knob is simplified.

Abstract: An anti-tamper fastening screw has an actuating head which can be accessed only by a special tool and can thus be used effectively in a locking system provided for use with removable automobile roof latching mechanisms. The threaded screw has a specially keyed and tooled head adjusted to be inserted through two holes and held in position by mating threads to retain a roof component in locked position. A special tool is provided which is operatively engageable with the keyed head of the fastening screw to prevent unauthorized removal of the detachable roof without utilizing the special tool.

Abstract: A latch suitable for use on the door of a walk-in refrigerator can be opened from the exterior thereof and in addition from the inside of the cabinet as well as by means of an electrical signal. The latch is provided with a vapor barrier to prevent flow of water vapor along that part of the mechanism by means of which the latch is operable from the interior of the cabinet, flow of water vapor presenting the danger of frost-formation in said mechanism which could adversely affect the operation thereof. Optionally, the latch is provided with a switch which is closed on operation of the latch to activate an external device such as a vent port or an alarm signal.