MECHANICAL CODE LOCK Russian patent published in 1996 - IPC

FIELD: lock production. SUBSTANCE: lock has a cross bar, a jig for withdrawal the cross bar from cylindrical part, and blocking system that has immovable body, carrying movable body, and a sleeve. Movable body has a flange. Immovable body, sleeve and flange have radial openings originated at equivalent spacing over the circuit. The openings are used for placing push rods and spring loaded real and false blocking members to interact with the push rods. Blocking system is provided with a ring with an opening and indicator. The jig for withdrawal of the cross bar from cylindrical part is made in the form of a disc adjoining the indicator. The disc is installed on immovable body kinematically linked to the cross bar and provided with a pin for interacting to ring opening. EFFECT: high reliability. 4 cl, 7 dwg