| 摘要 |
<p>Improvements in the subject of patent no.520.125, relating to: "Improvements in automatic locking mechanisms for locks, and its first amendment no. 9302368", the mechanisms of which incorporate means for causing the latches (2) to withdraw from the inside of the door, the means of which include a rod (11) for activating the blade (3), an oscillating arm (12) driving the cam (4) of the cylinder (5) and a rocker arm (13) for activating the latch plate (6). The oscillating arm (12) is driven towards the cam (4) by means of a spring (27) mounted between said arm (12) and the rod (11).<IMAGE></p> |
