Door lock with semi-revolving bolt - has internal stationary bolt blocked by stop located cross bar with spring mounted between bolt cage and stop

摘要

The lock has a semi-revolving bolt which projects over the head of the lock body and an internal stationary bolt housed behind the first. A stop is attached to the body which limits the revolution of the first bolt. A cross bar is secured to the end of the stop which, when turned by the lock pressed down on the lock mechanism to block the stationary bolt by projecting over the lock head. The rear section of the bolt has a parallel cage which houses the revolving lock mechanism. The cross bar is spring mounted, the spring lying between the cage and the stop.