| 摘要 |
Dead-bolt locking apparatus includes a door-carried dead-bolt mechanism having oppositely projecting dead-bolts on dual aligned slides, and a key-controlled cam-lock unit receivable in a cavity in the dead-bolt mechanism. The cam-lock unit is inserted into the cavity with the lock of the cam-lock unit "unlocked", developing balanced outward thrust on the door-securing dead-bolt slides. Locking the cylinder lock then secures the cam-lock unit against removal and thereby locks the dead-bolt apparatus. |
