Abstract: A lock mechanism comprises a housing and a rotor mounted within a bore of the housing having a skirt, the rotor and skirt being rotatable by a knob. A lock opening and closing lever is rotatable between locking and unlocking positions and a rod is drivably connected to the lock opening and closing lever and serves for connection to a latching device.A securing and release lever drivably connected with the rotor through a drive tang and a slot permitting lost motion is movable by an actuator independently of the rotor.

Abstract: A motor-vehicle steering-column lock has a bush carried on the steering spindle and formed with a plurality of angularly equispaced axial ribs of the same thickness and having sides that define recesses each angularly twice as wide as the rib thickness. At least three elongated locking bolts lying in respective planes and sliding longitudinally independently relative to one another and generally radially with respect to the axis have generally identical and mutually parallel ends of a width substantially equal to the rib thickness. Thus in one locking position the ends of two adjacent bolts are received by one of the recesses while the end of the third of the bolts rests on an adjacent one of the ribs and in another locking position the end of a central one of the bolts rests on one of the ribs while the ends of the other two of the bolts straddle the one rib and are received in respective recesses flanking same.

Abstract: A lock mechanism comprises a housing having a bore therein, a sleeve located within said bore, means for indexing said sleeve within said bore at a selected angular disposition in relation to said sleeve, a rotor which is rotatably mounted and axially slidable within said sleeve, said rotor having a longitudinally extending key slot, pistons slidable within bores in said sleeve and rotor between a first position where said sleeve and rotor are coupled together for simultaneous rotation and a second position on insertion of a key in said slot, and a control element for effecting movement of mechanism to be controlled. The rotor is movable axially from a first position where it is disengaged from said control element and a second position where it drivably engages said control element.

Abstract: A cylinder lock comprises a cylinder core movable axially by the key and with at least one lock part in particular a lock bolt, which can be actuated by the cylinder core and which is movable via a transmission part by an eccentric member, cam or cam plate actuable by the cylinder core into the non-locking position. The lock part (8, 9) is held in the non-locking position by a tiltable dished plate (20) adapted for movement towards the cylinder core (1) axially against the pressure of spring (22) and disposed coaxially of the cylinder axis, until withdrawal of the key causes the cylinder core (1) to be moved back into the starting position, the plate (20) being withdrawn from the position which locks the transmission part (14). On the side remote from the cylinder core (1), the plate (20) has an inclined face (20b) along which moves a cam follower (18) attached to the transmission part (14), in order to move the plate (20) towards the cylinder core (1) against spring pressure.

Abstract: A lock with mixed mechanical and electrical control which utilizes a key device which includes mechanical notching for cooperatively engaging pistons carried within the lock stator and rotor and which also includes a signal emitter which is selectively alignable with a signal receiver which activates an electro-mechanical drive which is operatively connected to control the locking and unlocking of the lock bolt when the key device is at a position of the rotor which is different from the position at which the key device is introduced into the rotor.

Abstract: The lock cylinder (1) has in its widened head (2) a pivotable closing flap (4) which closes the insertion orifice of the key channel. One end (8) of a torsion spring (7) rests against the face of the closing flap (4) directed towards the key channel. Before assembly, the other end (12) of the torsion spring (7) projects above the outer surface of the cylinder (1) through a slit (13) in the head (2) of the cylinder (1), is bent round after assembly and interacts with a stop (14) connected to the cylinder (1). This design of the lock cylinder makes it easier to assemble it.

Abstract: A device for blocking the rotary movement of a steering column of a motor vehicle by means of a clamping lock acting in the two directions of rotation and having two sets of axis-parallel rollers which are guided in respective coaxial cages rotatable about the steering-column axis. The rollers of each set are clamped between a cylindrical running track and associated clamping surfaces inclined relative to the running track in a first position of the cage and run freely in a second position, one cage (9) with its rollers (7a) between the running track and the clamping surfaces serving for blocking the first direction of rotation, and a second cage (10) with its rollers (7b) serving for blocking the second direction of rotation. The two cages (9,10) are rotationally adjustable in opposite directions.

Abstract: An ignition lock for a motor vehicle has a cylinder provided with a recess into which the plunger of an electromagnet can project in the absence of energization of the electromagnet when the ignition switch is in the off position. A remote control circuit for operating the doors of the vehicle is independent of a second circuit for responding to the presence of an appropriate key in the cylinder while a control circuit is responsive to both of these previously mentioned circuits for energizing the electromagnet only when the appropriate signal is received from the remote control unit and when the proper key is inserted in the cylinder so that in the absence of the first-mentioned signal even the proper key will not cause retraction of the plunger to permit the ignition lock to be operated.

Abstract: The invention relates to a cylinder lock, particularly a steering-wheel lock for a motor vehicle, comprising at least one locking member which is adapted to be operated by a cylinder core and to be moved, directly or with the aid of a transmission member, by an eccentric, adapted to be operated by the cylinder core, into the non-locking position and is held there by a locking disc which is disposed at right angles to the axis of the lock and can be released only by the withdrawal of the key. The locking disc is movable in the direction of the axis of the lock, and in a first axial position lies outside the range of movement of the locking member or transmission member and in a second axial position lies within this range of movement.

Abstract: The invention relates to a device for locking the rotational movement of a steering column of a motor vehicle by means of a clamp locking mechanism with rollers (4) parallel to the axis, which rollers clamp the steering column in both rotational directions between a cylindrical track and clamping surfaces oblique to the track and are guided in a coaxial cage rotatable about the steering column. The cage can be carried along by the steering column in both rotational directions in each case into one of the two clamping positions and can be fixed in a central position located between the two clamping positions, in which central position the rollers release the steering column. All the rollers (4) are surrounded externally by at least one elastic ring (6) coaxial to the column (1), which ring elastically loads the rollers towards the steering column.

Abstract: A wheel lock for the steering system of an automotive vehicle can make use of the power-assist hydraulic cylinder whose piston is connected to the steering linkage. The device includes a slide valve connected between the distributor of the power-assist system and the power cylinder and has a slide plug which can be displaced between positions allowing normal power-assist functions and blocking flow to and from the power cylinder to lock the steering. A key-operated switch can energize an electric motor whose threaded spindle drives a nut connected to the plug to shift the latter when the ignition is turned off, into the wheel-locking position.

Abstract: The device consists of an inspection glass (3) inserted in the door (1), a semi-transparent mirror (5) which is arranged inclined behind the inspection glass (3) and which faces the inspection glass (3) with the semi-reflecting side (6), and an optical receiver (7) which is located in the axis of reflection of the mirror (5).The invention is used in the building industry.

Abstract: The invention relates to a steering shaft anti-theft device for a motor vehicle, of the type comprising a lock bolt interacting with at least one radial hollowed-out part of a sleeve integral with the steering shaft.The anti-theft device according to the invention is characterized by the fact that the said sleeve is hollow and has an external slit over its entire periphery, the interior of the housing thus formed in the sleeve containing a plurality of free rotary elements and a stop integral with the sleeve, the assembly consisting of the said rotary elements and stop not occupying the entire circumferential space of the said housing, the lock bolt being able to occypy an unlocking position in which it is completely outside the said sleeve and a locking position in which it penetrates the said housing of the sleeve via the said peripheral slit.

Abstract: The invention relates to a rotatable connection device for a driving part (1) to a driven part (2), wherein the driven part has a rotational play relative to the driving part. The driving part (1) exhibits at least two axial elastic dogs (3, 4) which end in radial teeth (5, 6) and cooperate with circular arcuate slots (8, 9) in the driven part (2), which exhibit enlarged regions (11, 13) for the passage of the radial teeth (5, 6), and with a securing part (14). This securing part (14) is provided with holes (15, 16) to receive the elastic dogs (3, 4), and a bendable strap (17, 18), which is present at each hole (15, 16), after being bent behind the dogs (3, 4), comes into abutment opposite the teeth (5, 6) at their ends. Any accidental disassembly is prevented by this means.

Abstract: A key operated locking mechanism comprises a cylinder housing, an axially displaceable cylinder core which rotates in a cylindrical opening in the cylinder housing and which is movable axially between a locking position and an unlocking position, a locking bolt movable by said core between locking and unlocking positions, and plate tumblers on said core which project, in the axially displaced locking position of the cylinder core, beyond the external surface thereof when the key has been withdrawn. In the cylindrical opening in the cylinder housing there is provided at least one contact surface, which is arranged so as to be transverse of the lock axis and is directed towards the locking bolt, for cooperation with a portion of at least one of said plate tumblers that surmounts the cylinder core surface at a point with which the surmounting portion is in abutting contact in that axial position of the cylinder core in which the locking bolt is in its locking position.

Abstract: The present invention relates to an electrically actuated lock of the type comprising a rotor pivoting in a body and capable of being locked in relation to the said body by locking members constituted by pairs of opposed pistons or by keepers. The locking members are displaced by notches of a key, coded to permit the rotation of the rotor by action upon the key head. In this invention the unlocking of the rotor is effected by electric means without any opening of the rotor to the external environment, thus ensuring perfect sealing and inviolability. The lock comprises a key shank provided with coded notches, the shank being connected in translation with the movable armature of an electro-magnet, the rotor being provided with a graspable head by means of which the user can rotate the rotor when unlocked by the key.

Abstract: The invention relates to security devices with which automobile vehicles are equipped, and more especially to a controlling connection between the anti-theft device locking an element essential to the driving of the vehicle (such as the steering column) and the safety belt the wearing of which is obligatory for the driver in most cases.In order to ensure his safety and respect regulations it is desirable that the driver should not be able to start his vehicle until he has fastened his belt.An anti-theft device according to the present invention comprising a cylinder lock operated by a key, a bolt controlled by said cylinder lock for locking an element essential to the driving of the vehicle, and a device for locking the lock cylinder in rotation, the device being arranged to be unlocked by the fastening of the buckle of the vehicle safety belt.

Abstract: A motor vehicle door lock comprises a ratchet locking mechanism, behind the preferably bolt-shaped catch of which there can engage the flanks of two locking teeth which are arranged one behind the other and which are arranged on a pivotable locking lever which is pressed into the locking position by spring pressure and which, upon a movement of the catch relative to the lever during the locking of the door, can be pivoted by the catch against the spring pressure. For the opening of the lock there engages in the locking lever (9) or is secured thereto, a driving member (28), by means of which the locking lever can be removed from the catch (2) to such an extent that the respective abutting tooth edge becomes disengaged.

Abstract: A device for reading coded notches on keys, the device comprising a magnifier having parallel lines marked on one face, the lines being spaced apart in accordance with the code and each line being indicated by a coding index, the magnifier having a groove for the reception of a key and an abutment to locate the key in a correct position relative to the lines.

Abstract: The invention relates to anti-theft devices for automobile vehicles in which such devices are fixed on the steering column of the vehicle and the aim of the invention is to provide anti-theft steering device which can be adapted to steering column of differing diameters while retaining the necessary security of the fixing. The device comprises a casing containing a locking bolt operated by a security lock and a base to which the casing is secured by means of screws with breakaway heads. The base has a half bore corresponding to the steering column to be equipped with the device and is secured by a flexible member whose first end is selectively fixed by a pin at one of several discrete locations and whose other end is secured to the base in an adjustable manner.