Abstract: A rotatable magnetic tumbler apparatus for a magnetic lock comprises at least one rotatable magnetic tumbler, whose rotary orientation is adjustable by a magnetic key corresponding to a preselected magnetic code, and which is contactable by a contacting element of the lock. The rotatable magnetic tumbler is movable in the direction of the rotation axis of the tumbler, and the contacting element is suitably mounted in the magnetic lock for making contact with the rotatable magnetic tumbler in a predetermined position on the rotation axis.

Abstract: A lock cylinder comprises a cylinder housing and a cylinder core having at least one rotatable magnetic tumbler supported therein, in which at least one axially slidable locking element is provided. The locking element has projections thereon directed toward the exterior. The locking element has a contacting slider having contacting elements projecting toward the rotatable magnetic tumblers, and a locking slider engaged with and fit together with the contacting slider, on which are mounted the projections. The lock cylinder is also provided with a pressing member fixed with respect to the cylinder housing, by which the locking element in the O-position of the cylindrical core is held against the force of a compressible spring engaged to the locking element, and is pushed into an unlocking position on rotation of the cylindrical core.

Abstract: The lock cylinder comprises a cylinder housing and a cylinder core having at least one rotatable magnetic tumbler supported therein, wherein in the cylinder core at least one axially slidable bolt member is provided, whose slidability is controlled by the rotatable magnetic tumblers. The bolt member has two control tips positioned at opposite ends thereof, which are guided with two control surfaces mounted, so as to be nonrotatable with respect to the cylinder housing and positioned opposing each other. Thus a positively actuated control of the bolt member is provided, which is independent of the sliding force, which would be provided by a spring. One of the control tips is slidable against an elastic restoring force, whereby, after a certain limiting force has been exceeded, a relative displacement between the control surfaces of the bolt member occurs so that a subsequent rotation of the cylinder core without collateral axial displacement of the bolt member is made possible.

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: A closure device has a cylinder core turnable in a housing and a key insertable into a key channel in the core. A ball provided in a circumferential groove in the inner wall of the housing cooperates with an edge portion of the key. A pin is arranged in the same plane and 180.degree. away from the ball.