A lock, in particular a brake disk lock for motorcycles, comprising a lock housing and a bolt lockable thereto; with the bolt having a stop member, a bolt head and a bolt neck arranged therebetween, and with the lock housing having a receiving region to receive the bolt head of the bolt, a lock cylinder and a latch movable by a rotary actuation of the lock cylinder to lock or unlock the bolt head inserted into the receiving region. The lock housing further has at least one conversion element, by...

A lock has a rotatable member (24), a latch member (22) operatively connected to the rotatable member for movement between locked and unlocked positions when the rotatable member is turned, a key stop (38) having an end facing toward an exposed end of a casing (10) that defines, together with the end of the rotatable member facing toward the exposed end of the casing a dead-end wall. Key stop (38)is mounted for axial reciprocation in, and for combined rotation with rotatable member (24) and has ...

A mechanical lock comprises a cylindrical stator, a main rotor constituting the lock cylinder and being mounted for rotation in the stator and an auxiliary rotor mounted in the main rotor. A key carrying information can be inserted into the keyhole of the main rotor and turned to rotate the same between angular positions corresponding to an open and closed lock position through an intermediate latched position. A differential drive couples the auxiliary rotor to the main rotor for effecting rela...

A lock includes a case having a shield, a locking member housing contained in a first chamber of the case and protected by the shield, a locking member contained in the locking member housing, a locking rod also contained in the first chamber of the case and moved by the locking member in locking and unlocking, and a deadbolt having a press portion and a rod portion with an annular groove for the end of the locking rod to engage in for locking. The locking member has a single or a double pin tum...

A removable lock primarily designed for bicycles or the like which is incorporated in the tubular head or sleeve and extends interiorly into the tubular steering stem or post, the lock including tumblers, a stationary housing and an interiorly positioned rotary shaft associated with said tumblers including a pair of spring arms which wind around the shaft in inoperative position and extend outwardly in operative position through said housing interiorly of said stem to prevent rotation of the ste...

To prevent the unauthorized unlocking of van doors equipped with safety rod locks, the lever of the safety rod lock is held to the door by a retainer clip. The retainer clip has an extending tongue with apertures in it that passes through the door into the van. In the van, there is a dead bolt which may be actuated by a key cylinder inserted from outside the van through the door to cause the dead bolt to enter an aperture and lock the extending tongue of the retainer and hold the retainer in pla...

A lock having a hand-slideable lock-bolt. A lock body has a transverse bore passing therethrough and in which the lock-bolt can be mounted. The lock-bolt is movable between locking and unlocked positions. A retention element located in the lock body but externally operable prevents the lock-bolt when in the unlocked position from being removed from the lock body. By externally manipulating the retention element the lock-bolt can be released for complete removal from the lock body. A key operable...

A safety or "dead-bolt" lock includes a lockably releasable sliding bolt assembly of a first magnetic polarity. The keeper element, which is adapted to be mounted on to a jamb is of a second or opposite magnetic polarity to magnetically attract the bolt. A key lock assembly is used to release the sliding bar from movement. A cover is slidably movable over the entire lock assembly to prevent unauthorized dislodgement.

A lock for a railroad switch or the like, which comprises a housing providing a socket at one end and an elongated shackle having an enlargement on one end and a recess on the other end for cooperating with locking balls in the housing socket to be received in locking engagement therein, in which the operating means for the locking balls in the housing is a rotatable member having an enlarged head disposed in a recess at the end of the housing opposite the socket end, the interior of said recess...

A combination lock, particularly a domestic door lock, comprises a rotatable and axially movable plunger, a plurality of axially displaceable pins disposed around the plunger, a rotary ward disc carried by the plunger and co-operating with slots in said pins to allow rotary movement of the plunger only when selected ones of the pins are axially displaced, relative to the remainder, to have slots therein aligned with the ward disc, and a member carried by the plunger and capable of moving the pin...