Abstract: A combination lock includes a housing, amount upon which is mounted first and second slide members, and a spring plate. The first slide member carries a stop stud that engages a closing lug as the first member shifts under spring bias in a plane from an open to a closed position. The second slide member is coupled with the first member and shifts in a plane substantially parallel with that of the first member. Additionally, the second member contains recesses capable of accommodating a tumbler disc that enables shiftable motion of the second member only when a cam on the tumbler is aligned with grooves in the mount. The tumbler disc connects with toothed structure on a combination setting wheel, and the spring plate contains respective fingers for biasing the setting wheel against the tumbler and for engaging catch recesses on the setting wheel. The spring plate further contains a finger for biasing the locking lug for ejection from the housing.

Abstract: A lock possesses a lock housing which is connected with a cover plate protruding above the lock housing at all sides. Fastening clips which abut at the corresponding side walls of the lock housing and protrude beyond the rear or rear side thereof are arranged at at least two oppositely positioned sides of the lock housing. The lock is fastened to a flat object by inserting it into an opening through the flat object and bending over the fastening clips on the rear side of this flat object. A substantial simplification of the manufacture of the lock and its fastening in an opening of the flat object is possible due to this form of construction.

Abstract: A permutation lock has at least two lock stopping devices each including an arresting disc provided with an intake recess and cooperating via a multipoint arresting device with a setting disc. A lock adjusting slider biased against the arresting disc is provided at one end with an arresting tongue which is engageable with the intake recesses. The other end of the lock adjusting slider has a projection which so cooperates with the actuation slider that when the arresting tongue disengages the intake opening and the actuation slider is in its closing position, the projection on the arresting slider engages a recess in the actuation slider. If the actuation slider is in an opening position, the projection bears on an abutment portion on the actuation slider and the arresting tongues cannot be displaced from the intake openings.

Abstract: The permutation block comprises a locking slider normally biased for movement in a locking position, a control slider normally biased for movement in the locking direction and being manually controllable for movement in an opposite direction toward holding discs of a plurality of interlocking devices determining the unlocking code for the lock, a coupling member arranged between the locking slider and the control slider, the coupling member being shiftable transversely to the direction of movement of the sliders from a normal coupling position in which it transfers the movement of the control slider to the locking slider, to a holding position in which it decouples the control slider from the locking slider to allow the control slider to enter notches provided in the holding discs when the latter are aligned in a code setting position.