Abstract: An improvement for a safety lock is provided which is especially useful in a double cylinder lock having a longitudinally split lock web ring, wherein the ring has a releasable interlocking connection in the form of a hinge at one side and a pair of radially extending pegs on an opposite side which can be clamped together by a retainer in the form of a washer or a clamp to secure the two halves together. If a washer is used, the pegs may have to be swedged over, but if a clamp is used in the form of a resilient member surrounding a portion of the lock ring, no swedging is required.

Abstract: A magnetic bolt has a movable and electromagnetically operable locking member which, in conjunction with a locking part arranged on the rotor of a lock cylinder, blocks or releases the rotor, independently of the mechanical tumblers depending on whether the locking member is located in a free-running slot or a locking notch of the locking part. The magnetic bolt is arranged in a recess in the lock cylinder stator and provides an electromagnetic locking operation by energizing a field coil.

Abstract: The present invention relates to a safety lock including a cylindrical body in which is movably mounted a cylinder containing a safety mechanism which is constituted by pivoting blades meshing respectively with toothed wheels loosely mounted on an axis pin transversely connected to a cylinder and each provided with a notch adapted to be positively and drivingly connected to a catch for operating the lock mechanism, only after the notches are caused to coincide with the catch which initially is spaced from the wheels.

Abstract: A cylinder operated deadbolt lock in which a solid housing is provided with bores and apertures only to accommodate the lock components, such as the lock cylinder, the lock bolt, and the bolt moving mechanism. The lock bolt is provided with a rack and extends into the housing where it is thrown and withdrawn by a pinion mechanism.

Abstract: A compact push-pull right-angle lock especially suited for use on patio doors and on windows has a cylindrical bolt with rack teeth on its central section, a barrel lock assembly, and a rotatable disk all contained in a horizontally split case. The bolt can be extended in either direction by the right angled linear motion of the barrel lock assembly. Linear motion of the barrel lock assembly is transferred to linear motion of the bolt through a disk that is free to rotate some fifty degrees about a shaft. The barrel lock assembly is loosely linked to a crank pin set perpendicularly to the plane of the disk and the bolt rack is meshed with an arcuate section of a pinion gear on the disk located some ninety degrees from the crank pin. The bolt can be locked in either extended position by means of a cam lug which cna be moved from the barrel lock assembly housing into locking recesses in the case by rotational movement of the keyed barrel lock.

Abstract: A cylinder lock is provided with a coupling device connectable via a locking beam to an additional lock structure. The locking device comprises a coupling sleeve slidably mounted on an end portion of the cylinder core. The coupling sleeve is formed with an elongated radial recess engaging a radially directed snap pin in the cylinder core so that the core is rotatable over the length of the radial slot without carrying the coupling sleeve. The coupling sleeve is also formed with a bore for engaging in another angular position of the cylinder core the snap pin so that the coupling sleeve is jointly rotatable with the cylinder core. The coupling sleeve has an end wall having a central cross-shaped recess for receiving in a selected position a flattened end portion of the locking beam.

Abstract: The present invention provides a door lock assembly and method which will provide security for building owners and dwellers and will result in a reduction of property damage and loss by burglars. The door lock assembly includes a tumbler type cylinder which can be rotated by a key from the outside to lock a door or other closure to which it is fitted to a first position whereupon the handle inside the door cannot be used to unlatch the lock from the inside. Also, the door can be locked and thereafter the cylinder can be rotated by turning the key in the reverse direction whereupon the door remains locked but upon withdrawing the key the door can be opened from the inside with the handle. Thus, after locking, the key can be withdrawn in either of two cylindrical positions depending on whether the user wants the door to be able to be opened from the inside by use of the handle.

Abstract: The cap comprises attaching devices and key-actuated locking devices which are independent from the attaching devices. This enables the cap to be shifted by hand without use of the key if desired. The locking devices comprise a plurality of elastically yieldable strips which are part of a single member which is fixed to the body of the cap. The end portion of each strip is located in alignment with an aperture of the body and bears against the bottom of a cam groove of a member which is connected to rotate with a lock barrel receiving the key.

Abstract: A locking device for securing a bicycle or the like to a post or other fixture. The locking device features a replaceable lock cylinder, which in turn allows for both replacing merely the lock cylinder when the keys get lost and also allows for conforming the lock cylinder of the device to an identical lock cylinder used in the owner's home so that one key, preferably a flat key, services both the device and the home. The lock cylinder cannot, however, be removed when the device is locked and in use. The key, on the other hand, can only be removed when the device is locked.

Abstract: A steering lock for automobiles includes a check lever movable upon rotation of a key-actuated cylinder into locking engagement with a locking rod to lift the latter clear of engagement with a steering shaft. When the key-actuated cylinder is turned back and the key is pulled out, the check lever is pulled back out of locking engagement with the locking rod, which then locks the steering shaft. As the check lever is thus retracted, it depresses a spring-loaded control member into a key slot in the key-actuated cylinder. When the check lever is fully moved back, the spring-loaded control member is pulled out of the key slot. Thus, the key can be inserted smoothly into the key slot for releasing the steering lock.

Abstract: A lock assembly including a novel retaining strap for securing a lock cylinder within the assembly. The lock assembly is designed so that one of two different degrees of bolt extension can be chosen during assembly of the device. In addition the assembly incorporates a dowel pin to increase the strength of the joint between the lock bolt and a lock bolt extension connected to the lockbolt.

Abstract: An actuator assembly in which the actuator is usually the rotatable barrel of a key operated tumbler lock. The actuator assembly is connectable through a non-circular drive spindle to any conventional deadbolt assembly of the kind having a tubular housing securable to support, a lever rotatably mounted on the housing and a deadbolt slidably mounted within the housing and responsive to rotation of the lever. A body member of the actuator assembly is securable to the support separate from the deadbolt housing and the lock barrel is rotatable relative to that body member. A gear segment secured to the barrel for rotation therewith is engageable with another gear segment rotatably carried on the body member, but only during part of its possible 360.degree. movement from the rest or locked position of the barrel. The other or driven gear segment has a drive spindle secured to it and that spindle engages within a bore of the bolt assembly lever to transmit rotation of the driven gear segment of the lever.

Abstract: A lock for a pair of doors hung in a single door frame, usually an inner main door and an outer door which may be a storm door and usually includes glass or screen panels through which a caller may be observed and identified, the lock including a pair of bolts carried by the door frame and operable to be extended therefrom to engage sockets formed therefor respectively in the door edges to secure them against opening. The bolts are operated by a lock shaft carried in the door frame to unlock first the inner door, so that it may be opened to permit observation and identification of a caller, while the outer door remains locked, and then to unlock the outer door if desired, to permit ingress of the caller. The lock shaft may be operated from inside the doors by a manual lever, and from outside by a key mechanism.

Abstract: A lockset for a door has a strike on the door frame and a latch bolt on the door panel. The latch bolt is reciprocable and is projected by a spring and preferably has a deadlatch operation. The latch bolt is retractable by rotation of an inner knob or of an outer knob. The outer knob is locked by a key lock controlling an axially movable plate engaged with the outer knob and interengageable with an outer escutcheon adjacent the outer knob. The key lock can move the plate out of engagement with the outer escutcheon and into engagement with the inner knob. A turn button in the inner knob can also move the axially movable plate.

Abstract: A safety lock is provided with two plate assemblies, the first to be mounted on the outside of the door leaf and the second on the inside thereof. Each one of these plate assemblies comprises a first plate adapted to be placed on the side of the door leaf and having a first opening for receiving an actuating mechanism, a second opening housing a transmission gear mechanism, and corner holes for passing fasteners which hold the two plate assemblies together. A second plate is on the outer face of the first plate which comprises holes providing bearings for each gear of the transmission mechanisms as well as holes wider than the ends of the fasteners for housing the same therein. A third plate is spot welded on the outer face of the second plate and prevents access to the transmission mechanism. In the outer plate assembly, this third plate covers the ends of the fasteners and has only one hole, shaped in correspondence with the respective key hole opening of the cylinder lock.

Abstract: A cylinder lock chassis is composed of three self-contained subassembly units, namely, a central retractor assembly and two "face assemblies" such as inside and outside knob assemblies or others prepared to provide various different "functions" for the lock. The retractor assembly has a retractor held and guided in a frame by guide means, preferably a pair of guide lugs on low-friction shoes riding in guide slots in spaced walls of the frame. The unitary retractor assembly is clamped between end plates of selected face assembly units and interlocked therewith so as to hold the face assemblies in coaxial relation with each other and the retractor unit. This permits selective assembly of various lock chassis from stocks of different self-contained and unitary subassemblies to facilitate original manufacture of locks with different functions, and allows interchange of unitary subassemblies in field service.

Abstract: A doorknob has a neck in rotational bearing engagement on a knob sleeve and has a pair of inner recesses which open inward to engage a driver lug and open axially to be engageable with the lug by axial knob movement. The sleeve has a cross slot adapted to contain a torque-releasable driver, biased outward to engage its lug in a recess, but with the lug so shaped that it will be cammed out of the recess under excess torque on the knob and hence release the knob and prevent transmission of the excess torque to the knob sleeve. Alternatively, the sleeve cross slot may contain a positive driver such as one having end lugs engaged in both recesses, or may contain no driver so that the knob is freely rotatable on the sleeve. The knob has a large end bore closed by a face closure member retained in place by a buried snap ring.

Abstract: A deadlock of the customary type for locking and unlocking a dead bolt is equipped with a conventional cylinder having a cylinder plug rotating within it, the cylinder plug carrying pin chambers aligned with pin chambers in the cylinder for reception of pin tumblers when shifted in position by cut irregularities on the edge of the key. With chambers in alignment an appropriate key inserted in the keyway shifts the pin tumblers to positions coincident with a shear line to permit rotation of the plug to either locked or unlocked position. Unless the chambers are in alignment, the tumblers cannot shift and the key can be neither inserted nor withdrawn. For preventing withdrawal of the key on, for example, the inside of the door, when the dead bolt is locked, there is a detained key mechanism.

Abstract: A lock having a key-operated rotary plug supported within a shell. The rotary plug has an eccentric tenon which projects axially from the inner end thereof, which tenon is engaged within a transverse slot formed in the opposed face of the dead bolt to cause reciprocal slidable displacement thereof in a direction perpendicular to the rotational axis of the lock. The rotary plug also has a second eccentric tenon projecting axially from the inner end thereof, which second tenon is angularly spaced a substantial distance from the first-mentioned tenon. The bolt has a second slot which is closely adjacent but spaced from the first-mentioned slot. During rotation of the plug through a selected angle, such as 180.degree., one of the tenons engages one of the slots during only a portion of the selected angle to effect linear displacement of the dead bolt through a portion of its stroke.

Abstract: A removable core cylinder lock utilizing twisting tumblers and a latch bar provides maximum security. Both operating and control keys have at least one skew cut bit to operating the twisting tumblers. A centrally positioned cylinder retainer is rotatable with a control key to remove the lock from its shell.

Abstract: Retracting mechanism for a deadlocking latch bolt comprises a U-shaped frame extension for the latch bolt tube, having parallel side walls joined at the rear by an integral rear wall and held spaced at the front by out-turned tabs engaged in the tube and riveted to its end wall by spring guide pins. A two-piece rotatable retractor is trapped between the side walls with its hub ends rotatable in bushings in such walls, and has a pair of arms axially separated by a central cylindrical section. The latch bolt tailpiece has a wide rear yoke portion formed by spaced parallel side legs which straddle and are guided by such central cylindrical section. One such leg carries a cross pin drivingly engaged in the slots of the retractor arms which swing 80.degree. to retract the tailpiece through a long stroke. The rear yoke has forward stop shoulders which engage a stop face on the latch bolt tube to position the tailpiece for a full retraction stroke.

Abstract: A dead bolt lock set is designed to be key actuated on the inside as well as on the outside of the door. For the inside there is an inside tailpiece in engagement with a drive slot in the dead bolt hub. A lost motion circumferential recess on the inside tailpiece provides stops at positions such that when the key is inserted on the inside and turned to lock the dead bolt by action of a micro drive pin, the key cannot be returned in reverse direction to key release position without unlocking the dead bolt. Consequently, the key must remain captive in the inside keyway to keep the dead bolt locked because of being held in the cylinder by the pin tumblers.When the lock has been locked from the outside, the drive slot in the head of the tailpiece is rotated out of line with the inside key slot. Under this condition when unlocking from the inner trim, the tailpiece and washer are forced inward by the key tip compressing the conical spring and allowing full key insertion.

Abstract: A lock follower, particularly a handle or pressure follower, comprises a hub part consisting of a machined rod-like or tubular material and an arm part consisting of a punched sheet-metal material. The parts are rigidly joined together by flow of material from the arm part to a peripheral groove in the hub part. Preferably the hub part exhibits in the neighborhood of the groove a portion of smaller diameter than the main portion of the hub but of larger diameter than the hole for the hub part in the arm part. Said portion is pressed so far into the hole in the arm part while deforming the material defining the hole that the arm part abuts an abutment in the hub part. Further, the portion of the hub located between the peripheral groove and the abutment preferably has axially extending ridges around the periphery thereof to facilitate flow of material and rigidly securing the two parts together in both axial and circumferential direction.

Abstract: The control device for cylindrical locks includes a housing having on its inner surface longitudinal and annular guiding recesses, a cylindrical plug or core rotatable in the housing about its center axis and defining on its surface second recesses, at least one magnetic rotor supported in the plug for rotation about an axis transverse to the center axis and defining a third recess alignable with the second recess, control strap arranged for axial displacement on the plug and being rotatable therewith, and arresting elements projecting from the strap into the first and second recesses and being axially displaceable with the strap into engagement with the third recess in the rotary member when this third recess is in alignment with the second recess.

Abstract: An adaptation for a mortise lock having a double-ended primary lock "cylinder" of "keyhole" cross-section mounted through a conforming opening in the mortise lock case, provides for use of key-removable lock cores and increases security by preventing removal of the lock cylinder except after removal of a core with a special control key. Two key-removable cores are mounted in chambers at opposite ends of a housing which fits through the cylinder-receiving opening of the mortise lock case. A bolt-actuating cam between the chambers lies within the case and is alternatively engaged by shuttle throw plug members respectively moved to engaged position by thrust of a key in one of the cores and is operated by rotation of such key. The cores require a special control key for removal and are shaped or mouned so as to project laterally from the lock cylinder and thereby to block passage of the cylinder out of the conforming opening of the lock case until removed by a control key.

Abstract: Automobile door lock assembly of push-button type including a rotatable element axially movable with a push-button and an annular element co-axial with the rotatable element. The rotatable element is formed with an axially extending slot having a shoulder defined by a wide and narrow portions of the slot. The annular element has a lug adapted to be placed in the slot of the rotatable element so that, when the lug is placed in the position engageable with the shoulder, the axial movement of the rotatable element is prohibited but, when the rotatable element is rotated to place the lug out of the path of the shoulder, the axial movement of the rotatable element is allowed to release the latch in the lock assembly. The annular element has manually actuatable lever so that it can be actuated into locking position without using a key.

Abstract: A security type dead bolt for a door is arranged so that a key must be used on the inside, as well as on the outside, to extend the dead bolt to locked position, in that way to prevent an unauthorized person opening the door from the inside after surreptitious entry. To make certain that when the occupant is at home and with the latch bolt extended by the inside key to locked position, there can be no lost key situation blocking exit by the occupant in case of an emergency such as a fire, the dead bolt mechanism is arranged to trap the key in the lock whenever the dead bolt is extended to locked position, but to release the key when withdrawn. A yieldable mechanism permits unlocking the latch bolt from the outside even when a key is left in the lock on the inside.

Abstract: A lockset of the type having a bolt reciprocal from and to a door edge by an operating mechanism including a crank hub and locks at opposite door faces has tubular torque blades between the locks and crank hub for transmitting rotative motion from the locks to the crank hub and ultimately to the bolt for the bolt reciprocations. Both of the torque blades have tubular inner ends of D-shaped cross section with one extending axially a major part of a crank hub D-shaped cross section axial opening and telescoping the other within the crank hub. Outer enlarged tubular ends of the torque blades are telescoped by ends of lock plugs of the respective locks and have partially circumferentially extending slots formed therein receiving radial tongues of washer-like members positioned circumferentially over the lock plug ends. Thus, the torque blade inner ends are single position, rotative drive connected to the crank hub and outer ends thereof are lost motion drive connected to the locks.

Abstract: A cylindrically shaped lock structure adapted to receive an associated rod-shaped key is disclosed. The lock comprises a rotor case having an annular rotor member disposed therein. The rotor member contains a plurality of slidable pin members radially extending into a central key opening in the rotor member. The key opening is arranged and configured to receive the associated rod key such that when the rod key is inserted, the pin members retract into the rotor case and selectively render the rotor movable therein. A latch actuating system is coupled to the rotor member via an arm member whereby rotation of the rotor member causes the actuating system to render a latch movable from its initially closed position to an open position.

Abstract: There is disclosed an emergency key mechanism on a cylinder lock with a double locking cylinder and a locking coupling axially moveably fitted thereon.

Abstract: A cylinder lock comprises two barrels in axial alignment on either side of a web. Each barrel is formed as two opposed elements disposed in either side of a longitudinal plane in which the keyhole is formed by confronting surfaces of the opposed elements. The web is engageable with internal end parts of the barrel elements and each barrel comprises tumblers received in the barrel and operable by a key inserted in the keyhole. A one-piece lock block has a central recess through which the web passes and two rectangular parts on either side of the recess each having a narrow top surface contiguous with one of the barrels. Pins are received in bores in the lock block and the pins are spring-biased to lock the barrels when the key is absent. Two housing members each engage over one of the rectangular parts and the corresponding barrel to maintain the barrels in contact with these parts.