FIELD: locking devices. SUBSTANCE: this relates to devices giving interlocking and secrecy to locks used for locking doors of railway cars, containers, storages, apartments, garages, etc. Body of device has vertical blind holes for accommodation in them of freely lowering by gravity coding detents with working and false circular grooves. Installed perpendicularly to aforesaid holes in body slot for free longitudinal displacement and free rotation is cylindrical span-piece with leading head having circular grooves which form protrusions. These protrusions have longitudinal chamfers to create radially located stops to locate detents in working recesses. Opening of device is effected by action of pressure key columns on coding detents. EFFECT: high efficiency. 6 dwg
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