LOCK FOR LOCKING DOORS Russian patent published in 1995 - IPC

FIELD: civil engineering. SUBSTANCE: lock for locking doors has secret mechanism 11 with rotary carrier 12, installed in casing 2, having shaped hole with a section oriented radially about the centre of carrier revolution, and main key hole 13 for a key. The lock has at least two locking bars installed for motion in two intersecting direction, and a unit to stop the lock in shut position. The carrier is linked kinematically only to one main bar 4 or 5. The carrier has hole 28 for the key of additional locking bar 3, located unsymmetrically about the centre of carrier revolution and oriented for the key of secrete mechanism 11. Dimension of above hole in radial direction corresponds to the dimension of mate section of shaped section in the casing. EFFECT: high reliability. 2 cl, 6 dwg