Abstract: Disclosed are apparatus and corresponding and/or associated methodology for door barricade systems which may be activated from inside an enclosure (or room) while still maintaining controlled serviceability or access to the enclosure from outside of the enclosure. Per some embodiments, bolts passed through a doorframe as a retrofit feature may support an interior plate which has a channel or passage for receipt of a manually removable door block member. The bolts are secured by an exterior plate and custom nuts which have customized drive surfaces. Corresponding custom drive head features interface with the custom nuts for either installation or removal of the door barricade system, even if the door block member is in place. Corresponding hole features on the custom nuts match with custom drive head pin features to provide an effective keyed entrance, which is hardened against forced entry if a person outside the secured room does not have the appropriate custom drive head.

Abstract: A hatch lock cover includes inner and outer flanges, with a keeper and a handle positioned between the flanges. The handle is rotatable with respect to the flanges to move a batten bar contacting surface into and out of engagement with a batten bar or a hatch cover tab of a hatch cover. A downwardly extending portion of an arm of the keeper may define an aperture and/or include a projection for securing an adjustment plate or extension piece to the arm to provide an alternative batten bar contacting surface. Alternatively, a mounting bracket may be provided to secure the hatch cover lock to a railcar, with the mounting bracket accommodating the hatch cover lock in different positions having different elevations. Such configurations allow the hatch cover lock to be adjusted for use with a batten bar or hatch cover tab having a gasket that has become worn out.

Abstract: A fitting includes a functional lock part with a restraining area for a door element, and first and second fitting elements. Each of the fittings includes at least sectionwise a locating portion, which includes an intermediate layer able to contact the door element. The fitting elements delimit the restraining area. The functional lock part includes a third fitting element disposed between the first and second fitting elements. The fitting further includes an adjusting mechanism disposed between the fitting elements, with which a position alignment of the functional lock part can be performed.

Abstract: A door latch system (1) comprises a latch (10) and rose bases (60A,B) which clamp together against a door panel through a cross-drilling in the door panel by screws 80 engaging in bosses (94) above and below the latch body (12). The latch body is supported in the cross drilling by an adaptor (40) which in turn supports sleeve extensions (90) of the rose bases to prevent the rose bases from turning on operation of the handle knob/levers attached to the rose bases. The sleeve extensions are open, (that is, C-shaped in section) so that the diameter of the parts of the system within the cross drilling can be minimised, whereby the diameter of the rose bases can likewise be kept within desirable limits of size.

Abstract: A door assembly having an anti-theft device is provided. The assembly includes a door component defining an internally protruding cavity. A locating tab extends from the anti-theft device and is insertable in the cavity in the door component, thereby locating the anti-theft device relative to the door component. The door component includes a locking tab attached or integrally formed on the door component and adapted to snap into an opening in the anti-theft device, thereby securing the anti-theft device relative to the door component. The anti-theft device may be a shield and the door component may be a latch mechanism.

Abstract: A locking arrangement for the latching of a door to a counterpart has an upper part and a lower part. The upper part has at least one base section, a first side section which is angled with respect to the base section, a cover section which is angled with respect to the first side section, and a securing section which is angled with respect to the cover section and has a securing opening. The lower part has at least one base section and a securing section which is angled with respect to the base section of the lower part and has a securing opening. A holding means for the holding of a hoop lock is provided at the upper part or at the lower part. The upper part and the lower part can be positioned in a position of use relative to one another such that the securing opening of the upper part and the securing opening of the lower part are arranged in alignment to be able to secure the two securing sections to one another by means of a lock hoop.

Abstract: Button comprising a nut (1), a support (3) and a cover (5) fitted on the aforesaid support (3) defining a chamber (6) and having at least one window (51, 52) for an indicator for at least one position chosen from a first position for the button roughly corresponding to a minimum tightening torque for the nut (1) and a second position for the button corresponding to a lower tightening torque than the tightening torque for the first position, with the aforesaid indicator (30) being connected to a plate (13) by a means which ensures that a rotation of the plate (13) is translated into a rotation of the indicator (30).

Abstract: An anti-break lock includes a body and two rods respectively extend from two ends of the body. Two rings extend radially from the body. The body has a passage which communicates with one of the rings and the ring is engaged with an engaging block. The engaging block has a recess in which a pad is received. The passage has a resilient member and a stop pin received therein and the stop pin has a first shoulder and a second shoulder formed in two ends thereof. A contact portion extends from the second shoulder. The body has a room which communicates with the passage. A resilient piece and an engaging member are received in the room. When the lock is damaged, the contact portion is inserted into the recess and stopped by the engaging member so that it cannot move back to its initial position. The lock cannot be unlocked.

Abstract: A base assembly for a lock installed at a lock module includes a base, a connection member, at least one fixing member and an escutcheon coupled to the connection member. The base is coupled to the lock module, and the connection member is coupled to the base via the at least one fixing member. The connection member is located between the base and the escutcheon, and a portion of the connection member covers the base. The base may couple with different shapes of escutcheons via the connection member.

Abstract: A door lock assembly for a door. The door lock assembly includes a handle assembly, a latch bolt assembly disposed within a portion of the handle assembly and a mounting assembly that movably couples the handle assembly to a door panel member. The latch bolt assembly includes a movable latch bolt that translates relative to the handle assembly between an extended position and a retracted position.

Abstract: A lock mounting structure for mounting a lock to a part of a container is disclosed. The lock mounting structure comprises an outer part adapted to form an outer portion of the container part and an inner part adapted to form an inside portion of the container part and having a first surface for facing towards the inside of the container. The inner part includes a mounting structure for mounting the lock thereto. The mounting structure extends outwardly from the first surface. The structure also includes an aperture for accessing a key receiving end of the lock. The lock mounting structure is formed as an integral piece.

Abstract: The reversible mortise lock of the present invention can be installed on either the left or right side edges of a door opposite the door hinges. The lock includes a housing with a live bolt pivotally and slidably mounted in the housing. The live bolt slides between an extended position beyond the housing and a fully retracted position within the housing. When fully retracted, the live bolt can be rotated 180° so that the beveled face of the live bolt can be reversed. A finger pivotally mounted within the housing blocks full retraction of the live bolt when the mortise lock is installed in the door.

Abstract: A lock structure for an electronic device includes a housing, a securing element, an entering portion, and a lock body. The housing has a cavity and a first through hole. The securing element has a retaining portion and an extension portion extending out of the housing by the first through hole and together forming a T-shaped structure, wherein the retaining portion has a length and a width. The entering portion is capable of moving back and forth with respect to the housing and the securing portion, and is parallel to an axis of the extension portion. When the lock body is in an unlocked status, the entering portion is moveable along the extension portion; when the lock body is in a locked status, the entering portion extends out of the housing and is fixed beside the extension portion.

Abstract: An enclosure for a lock mortise has parallel opposing side panels, parallel opposing upper and lower panels, a rear panel, and a forward opening for receiving the lock mortise. The panels are made of a suitable metal. Where the edges of two panels intersect, a tab is provided along the edge of one panel and a notch is provided along the edge of the intersecting panel wherein the tab of the first panel is received in the notch of the second panel.

Abstract: A lock mechanism includes a cover plate positionable over a plurality of pin chambers in a cylinder housing wherein one or more of the pin chambers include an internal threaded portion. The lock mechanism includes one or more pin assembly caps that are operative to secure the cover plate to the cylinder housing of the lock by threadably engaging with threaded pin chambers. The pin assembly caps include an internal cavity sized to receive at least a portion of a pin assembly, such that threaded pin chambers and unthreaded pin chambers have substantially the same dimensions without substantially increasing the dimensions required for the lock mechanism. The pin assembly caps include a socket (e.g., a hex socket, a Phillips-type socket, or the like) that allow users to selectively remove and secure the cover plate to the cylinder housing common tools.

Abstract: The invention relates to a handle (e.g., a fixed handle, rotary handle, or swivel lever handle) particularly with a lock insert or the like or escutcheon for mounting in a preferably thin wall (e.g., a sheet metal cabinet door leaf, sheet metal drawer front, or sheet metal box lid). Wherein the handle has a longitudinal extension at whose ends is arranged at least one fastening means (e.g., a screw, nut, hook fastening or clip-in fastening). The lock insert includes a housing with a collar in the vicinity of its front end, and a receiving space for the front end of the housing with the collar is provided at this end of the handle in the vicinity of the fastening means proceeding from the contact surface contacting the thin wall, this receiving space passing through the handle to the front side of the handle while changing in cross section.

Abstract: The present invention provides a burglarproof lock using with a portable apparatus which has a slot. The burglarproof lock includes a lock apparatus and a protection portion. The lock apparatus has a housing, a first contact surface, and an engaging portion. The lock apparatus is disposed inside the housing. The first contact surface is formed on a side wall of the housing. The engaging portion connects with the lock apparatus and penetrates through the first contact surface. The protection portion has a second contact surface and a flange portion. The protection portion is disposed corresponding to the first contact surface, and an area projection of the flange portion is protruding from the first contact surface, wherein the engaging portion further penetrates through the second contact surface.

Abstract: A cylinder lock includes a cylinder lock casing comprising an axial cavity, two opposite lengthwise grooves on the cavity, and an upper riser including aligned upper holes being in communication with the cavity; a cylinder lock core releasably fastened in the cylinder lock casing and comprising a key hole, top lower holes, and a side slot being in communication with the key hole, a locking tumbler comprising cylindrical lower tumbler elements slidably disposed in the lower holes, each lower tumbler element partially extended into the key hole and including an outer longitudinal trough, and spring depressible upper tumbler elements in the upper holes and partially disposed in the lower holes to contact with the lower tumbler element; and a spring depressible side bar in the slot and comprising inner ribs and a longitudinal outer protrusion in one groove.

Abstract: A lock device for use with a key is disclosed. The lock device includes a locking spindle including a plurality of locking spindle bores and a passage extending axially along an axial length of the locking spindle, and a driver structure including a plurality of driver structure bores. An interface between the driver structure and the locking spindle forms a shear line. The lock device also includes a plurality of combination pins in the plurality of locking spindle bores, and a plurality of driver pins in the driver structure bores in the driver structure, the plurality of driver pins being respectively associated with the plurality of combination pins.

Abstract: There is provided a security cover for a cylinder lock. The security cover may comprise a top wall and a peripheral side wall and may be adapted to be secured over an end of the lock and may include a key slot extending through the top wall and positioned to align with the lock cylinder when the cover is secured over the lock. There is also provided a key for use with the cover and a method for securing a cylinder lock.

Abstract: A tracking device is incorporated into a band, such as a watch band or bracelet. The tracking device appears as an ordinary band, but cannot be removed by the individual wearing it. If necessary, the location of the tracking device can be determined by a central server and reported to the authorities or to the individual's family.

Abstract: An unlocking device includes a casing mounted to a side of a lock. A movable body is movably received in the casing along a first axis and has an opening. The lock has a keyhole in an extent of the opening. A key receiving seat is movable along a second axis perpendicular to the first axis between a first position received in the movable body and a second position at least partially outside of the movable body. A linking rod is extended into the movable seat. A key can be placed into a key receiving hole of the key receiving seat in the second position and then moved into the movable body to engage with the linking rod when the key receiving seat moves to the first position. The key is movable into the keyhole by moving the linking rod along the first axis and rotatable for locking or unlocking operation.

Abstract: An unlocking device includes a casing mounted to a side of a lock having a keyhole. A movable body is rotatably received in the casing about an axis. The movable body has a closed end having a hole. A key receiving seat is received in the movable body and has a key receiving hole. The keyhole is normally blocked by the closed end of the movable body. The movable body can be rotated to align the hole with the keyhole and the key receiving hole. A block is fixed to the movable body and includes a through-hole extending along the axis. A manually rotatable linking rod extends through the through-hole and has an engaging portion for coupling a key received in the key receiving hole. The key can be moved into the keyhole by moving the linking rod along the axis and can be rotated for locking or unlocking operation.

Abstract: A device for re-keying a lock that frees the locksmith from having to handle individual tumblers. A magazine is provided for each tumbler in the lock. Each magazine is numbered or coded to indicate the size of the tumblers within. The magazines fit into the top of a housing that temporarily holds the plug portion of the lock to be re-keyed. Upon alignment of the magazines with their corresponding holes in the plug, the tumblers fall into place and the lock has effectively been re-keyed. The plug is then removed from the housing and ready to be placed back in its original lock assembly.

Abstract: A lock cylinder including a housing defining a cylindrical cavity, and a plug disposed in the cylindrical cavity and rotatable between a locked position and an unlocked position. The plug includes an inner pin chamber aligned with an outer pin chamber of the housing when the plug is in the locked position. An inner pin is housed in the inner pin chamber and is engageable with the outer pin when the plug is in the locked position, and includes an outer surface having a non-axial groove. The non-axial groove has a curved surface that defines a substantially semi-circular cross-section. An engagement member is supported by the plug and has a substantially semispherical end portion extending into the non-axial groove such that the semispherical end portion is substantially engaged with the curved surface.

Abstract: An improved lock mechanism comprising an anti-pry shield having a hollow body with a first end and a second end, and a cylindrical shield at its first end; a knob-set cylinder having a plug with a key end and a driver end; a monolithic cylinder guard having a body with a beveled exterior side wall between a first end and a second end, the second end having a bore, a cylinder receiver having a cavity open to the first end, the cavity adapted to receive the knob-set cylinder from the first end, the cavity open to the bore in the second end, the bore adapted to receive the key end of the plug; and a cover having a beveled exterior side wall between an open first end and a covered second end, the decorative cover permanently secured to and covering the beveled exterior side wall and the second end of the monolithic cylinder guard, the covered second end of the cover having a bore coaxial with the bore in the second end of the monolithic cylinder guard and the plug of the knob-set cylinder.

Abstract: A personal property securement device mountable to a vehicle may comprise a cable housing with a safety port that defines a passage extending from internal to external the housing. A cable may be threaded through the passage with one end fixed to a cable retention knob external the housing and the other end fixed to a reel that may be disposed for rotation within the housing. A power spring may present a torque on the reel to enable retrievable winding and tensioned unwinding of the cable. The property securement device may further comprise a ratchet mechanism in cooperation with the reel to release tensioning of the cable at given incremental extractions.

Abstract: This invention involves a lock device, including housing with a center through hole and a core that matches the center through hole. There is a center through hole engagement groove in the wall of the center through hole and there is a core engagement groove opposite this center through hole engagement groove. The lock includes a fitting ring and elastic part. The fitting ring and elastic part are between the center through hole engagement groove and the core engagement groove, within the core engagement groove. The advantages of the aforementioned lock are that assembly is convenient and use is not easily affected by assembly.

Abstract: An electrical operating unit for a motor vehicle with a shaft for retaining an emergency key is described, wherein the emergency key is movably arranged in the shaft between a storage position and a usage position. A locking mechanism is provided for locking the emergency key and the movable battery compartment lid. As a locking mechanism, the battery compartment lid itself or a locking element which is mechanically connected to it is provided, and the battery compartment lid is movable into a position as a result of which the emergency key can be locked in the usage position and/or the storage position. The movement of the battery compartment lid is used to move the battery compartment lid or a locking element which is formed on it between the locking and unlocking position.

Abstract: A locking device and a method for unlocking the locking device are provided. The locking device includes a stationary plug having a first aperture extending therein configured to receive a key. The stationary plug further includes an outer surface, an inner surface defined by the first aperture, and at least a second aperture extending from the outer surface to the inner surface. The locking device further includes a housing having an outer wall disposed around at least a portion of the stationary plug. The outer wall has at least a third aperture extending therethrough. The locking device further includes a bolt member operably coupled to the outer wall of the housing. The locking device further includes a locking mechanism disposed in the third aperture of the housing and extending into the second aperture of the stationary plug. The locking mechanism is configured to allow rotation of the housing about the stationary plug when the key is inserted into the first aperture.

Abstract: The present invention features a system and method for operating or operably connecting an American locking cylinder with a Profile mortise lock, wherein the American locking cylinder functions with the Profile mortise lock in place of a Profile locking cylinder. Essentially, the present invention provides a door lock cylinder conversion adapter that converts an American cylinder to be operable with a Profile mortise lock. The door lock cylinder conversion adapter functions to actuate the internal locking mechanism of a Profile mortise lock much the same way a standard Profile locking cylinder would, only with an American locking cylinder providing the means for effectuating the actuation.

Abstract: Locks for luggage, travelcases, briefcases and the like that can be operated by setting a combination or by using a key include an indicator to provide a signal in response to use of the key. The locks retain relatively movable components in latched engagement when locked, and permit relative movement of the components when unlocked. In some embodiments, the indicator provides a visual signal if an associated travelcase has been opened for inspection by unlocking the associated lock using a key; and, in some embodiments, the indicator can be reset upon entry of a proper combination.

Abstract: A locking device and a method for unlocking the locking device are provided. The locking device includes a stationary plug having a first aperture extending therein configured to receive a key. The stationary plug further includes an outer surface, an inner surface defined by the first aperture, and at least a second aperture extending from the outer surface to the inner surface. The locking device further includes a housing having an outer wall disposed around at least a portion of the stationary plug. The outer wall has at least a third aperture extending therethrough. The locking device further includes a bolt member operably coupled to the outer wall of the housing. The locking device further includes a locking mechanism disposed in the third aperture of the housing and extending into the second aperture of the stationary plug. The locking mechanism is configured to allow rotation of the housing about the stationary plug when the key is inserted into the first aperture.

Abstract: A device for actuating a lock on a vehicle door has a support mounted on a vehicle door. A lock cylinder mount, or a decoy, is mounted on the support. A screw secures the mount when mounted on the support. The mount has a shoulder engaging a counter shoulder of the support at least partially in the mounting position of the mount. The screw has an actuating end for moving the screw into a release position and a locking position. In the release position, the mount is removable from and mountable on the support. In the locking position, the mount is secured. The mount has a threaded receptacle for the screw so that the screw is part of the mount. The support has a screw support surface against which the actuating end of the screw rests in the locking position of the screw for securing the mount.

Abstract: A door lock includes a cylinder with a core installed in a door. A flat finger is connected with the core. A latch is movably provided in a latch hole of the door and the flat finger extends through the latch. An inner cover is provided at an interior surface of the door opposite to the cylinder and has a plurality of sink holes defined therethrough for a plurality of first screws extending through the sink holes and engaged in the threaded holes. An outer cover is provided outside the inner cover to conceal the inner cover. A knob is provided outside the outer cover and has a hollow shaft extending through the outer cover and the inner cover and connected with the finger. Whereby, when the knob is turned, the latch can be extended or retracted to lock/unlock the door.

Abstract: A structure for reinforcing doorjambs wherein first and second reinforcement plates (32 and 42) are located between the doorjamb (16) and the structure frame (34). Reinforcement plates (32 and 42) are arranged in overlapping fashion and are provided with respective bolt holes (26 and 48) that are in registry with a bolt hole (26) of the doorjamb (16). The overlapped reinforcement plate structure provides improved strength and greater flexibility for ease of installation.

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

Abstract: A lock mechanism includes a lock housing having an upper surface with a pair of opposing L-shaped ears, a lower surface with a pair of opposing L-shaped ears, and a front surface with an orifice therethrough. A lock plug cylinder has a face with a key slot therethrough, the lock plug cylinder received within the lock housing through the orifice in the front face. A mounting bracket has a front face with an orifice, a pair of laterally disposed flanges projecting from the front face, and a pair of retaining flanges projecting substantially perpendicularly from the front face. The lock housing is received between the retaining flanges in such a way as to have the retaining flanges received by respective upper and lower opposing ears.

Abstract: A keyed knob assembly (10) having a knob portion (12), a knob insert (14) partially received within a bore (18) formed in the knob portion (12) and a shank portion (16) partially covering the knob insert (14) is disclosed. A throughbore (48) formed in the knob insert (14) is provided which operably supports a locking cylinder assembly (42). An axial channel (50) formed in the shank portion (16) terminates at a radial slot (52) to provide a means for releasably coupling the knob,assembly (10) of the present invention to a catch (54) of a lever catch subassembly associate with the chassis of the lockset.

Abstract: The invention concerns a multipoint electric lock, comprising at least two mutually spaced locking devices, a rod assembly directly connecting the locking devices together, integral with a housing, which slides in the housing, guided thereon by means of the locking devices, an electric motor constituting an actuating device, integral with the housing, and a transmission mechanism which ensures the transmission of movement between the actuating device and the rod assembly.

Abstract: This vehicle security device (40) is a metal plate (38) bolted to a door handle unit inside a vehicle door to prevent unauthorized unlocking of a vehicle door by jamming a thin tool into a vehicle door. And, device (40) prevents unauthorized unlocking of a vehicle door by inserting a thin tool between the seam between the window glass and the flexible molding around a door window frame of a vehicle door. When installed, the device (40) blocks access to the inner end of a lock cylinder (10) by preventing the insertion of thin tools directly to the inner end of the lock cylinder (10). This device (40) is comprised of a configured metal plate (38), angled on its upper end to extend horizontally toward the inside of a vehicle door; one or more bolts (43); one or more spacers (42); and one or more lock washers (41). The metal plate (38) has a rectangular-shaped cut out (45) to accommodate placement adjacent to the key-turnable inner end of a door lock cylinder (10).

Abstract: A locking device for control cabinet doors has a plate with a depression attached to an outwardly facing side of a door leaf. The pivot lever is positioned in the depression. A projection is connected to a face of the plate facing the door leaf, the projection extending through a cutout of the door leaf past an inwardly facing side of the door leaf. A cap is connected to a free end of the projection, wherein the cap and the projection define a receiving chamber. A lock for locking the pivot lever when folded into the depression is provided. A housing matching the design and size of the lock is provided. The lock is enclosed and secured in the housing. The housing is exchangeably positioned in the receiving chamber. The plate has a receiving opening for providing access to the lock. The receiving opening has a periphery matching the shape of the housing.

Abstract: A lock in which a key can neither be turned nor removed with the lock is open, is disclosed. The lock body is formed from two identical sections, the inner surface of each being provided with formations which accommodate the moving parts of the lock. The lock cylinder is provided with a plug which is operatively engaged to an extension. The lock shackle is engaged by a lock bearing which is held in place by the extension. Turning the key turns the plug and thus, the extension. This disengages the lock shackle as the lock bearing is no longer held in place. After it has been retracted, the contour of the lock shackle abuts the lock bearing, causing it to engage the extension, thus preventing the extension, the plug and the key from being turned.

Abstract: A locking device is used for doors of cabinets or cupboards and, more parularly, for doors of modular cupboard systems. In order to create an operationally reliable, inexpensive locking device which is suitable for narrow counterstops and which permits an installation independently of the fixing side, as well as an inexpensive conversion when the fixing side is changed, the locking device is given a bipartite construction with a handle positioned in the vicinity of a door plate and a bolt mechanism operable by a tumbler. The device has a first door plate area receiving the handle and a second door plate area. A locking movement, initiated by the handle, is subject to a deflection, preferably of approximately 90.degree., in the direction of a counterstop and a closed or open position of at least one locking element in a cabinet or cupboard-side receptacle is obtained.

Abstract: A method is provided for attaching separable mounting tabs to a mortise lock housing, including the steps of providing a hollow mortise lock housing in the form of a rectangular parallelepiped with a first side adapted to lie in a door edge and to provide at least one opening for a bolt, providing one slot at each of top and bottom edges, as installed, of the first side of the lock housing, the slots providing narrow openings for capturing mounting tabs at top and bottom corners of the lock housing, providing two mounting tabs, each having a first end portion for mounting an end of the faceplate and a second end for capturable insertion in the slots in the lock housing, the tabs further having a substantially right angle bend between the first end and the second end, orienting the mounting tabs such that the first ends are substantially parallel to the first side of the lock housing and project above and below the top and bottom corners of the first side of the lock housing, respectively, and the second ends

Abstract: Unlocking of a vehicle door by insertion of implements other than the door key into the door is prevented by a guard housing within the door into which the key turnable inner end of the lock cylinder extends and which also encloses an otherwise vulnerable portion of the linkage which interconnects the lock cylinder and the door latching means. In a preferred form of the invention, the housing has an extension which extends below the lock cylinder and which is angled to extend to the outer shell of the door and then downward along the inner surface of the shell and which extends between the shell and the side impact beam of the door. The guard may secured in place by the same bolt that secures the handle assembly to the door and is wholly within and concealed by the door.

Abstract: A musical door lock comprises a generally rectangular housing having enclosed therein door lock, an electric door bell and a battery chamber. When a push-button on the outer periphery is pressed to actuate a sound generator inside the housing, the combined electric door bell will release a musical melody or the sound of bird chirps inside the door. A second example provides a frequency regulator instead of a sound generator incorporated with a movable wireless door bell that offers more convenience to the house owners. In addition an anti-burglar device combine with the lock mechanism for releasing a warning signal which may be received by a portable radio receiver. This disclosure is characteristically providing an economical utility of space in a door lock as well as its variety of functions.

Abstract: A bolt-operated, vertical-lift lever lock having a lockcase or lock base and a lock cap, provided with a lever housing attached to at least one of the lockcase or lock base and lock cap and, wherein the lever housing is so constructed that the, or each, lever may slide within the lever housing and be protected against unauthorized lateral or longitudinal forces applied to the bolt.

Abstract: An adaptor 16 is formed with a pair of cylinders 22 and 24 which are in axial alignment, of different diameters and extend from opposite sides thereof. One of the cylinders 22 and 24 fits in complementary fashion into one of a pair holes 14 and 12, respectively, to preclude any movement in a radially lateral direction of adaptor 16 relative to the axis of the hole. The other one of cylinders 22 and 24 fits, respectively, into a groove 44 formed in a face 42 of a guard collar 18 or into a cylindrical opening 36 of the collar. The cylinders 22 and 24 are joined by integral links 26, 28 and 30 so that the precluding of radially lateral movement of the cylinder 22 or 24 within its hole 14 or 12, respectively, prevents radial movement of collar 18 relative to the axis of the hole.

Abstract: A structure is provided to prevent access to the latch pin of a dead bolt or latch lock. For dead bolts, a sleeve is provided which is received over the bolt frame in which the latch pin reciprocates. The sleeve is secured to the frame in such a manner that the latch pin cannot be accessed without removing the sleeve. For latch locks, a sleeve is provided with an extending tongue, which tongue covers the ears of the latch pin and denies access to the ears.