DE90852C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 68: Locksmith.

Patented in the German Empire on June 25, 1896.

The subject of the present invention is a security lock with electrical Noise device in which the device is struck, that when the lock bolt is pushed forward one or two lobed double-armed levers form a second lock, while when turning back the Locking bolt knock back the levers resiliently so that they make contact with an electrical Establish a line and thereby put the noise device into action.

The aim of the arrangement is that it becomes impossible to open a door without third parties knowing about it; it consists of a fixed to a Thürflügel in the usual manner Castle of a, the bolt b, the ¹ lower end of the double-armed lever in the closed condition c rearwardly urges, the hook end of the other lever arm that after the front into the recess of the Thürleiste e accesses. In this state, therefore, a double Verschlufs is made and ff occurred at the same time triggering the Contacte.

As soon as the bolt b goes back when unlocking, the. The lower arm of the double lever c is free and driven forward by the spring g , so that the nose d hits backwards and thereby establishes the contact of the electrical line at f and thereby activates the noise device.

So that the noise device does not stay open for the entire duration of the door Activity remains, a switch-off device is attached at some point.

For further security, a latch device h is attached, which also holds the double lever c in the lock when it is unlocked and can only be turned by means of a socket wrench so that the nose-shaped part d of the double lever c can strike backwards and thereby establish contact with the line i .

The pawl h is pressed down on the front lever arm by a spring k so that it engages in one of the notches in the double lever c when the bolt b is pushed forward.

Means by triggering the pawl h socket wrench or the like. As a result, rotational movement of the nose h ', the spring f is pressed against the spring f and already prepared by a contact of the line i.

In the accompanying drawing, FIG. 1 shows the released pawl h with a receding bolt b ; it can be seen here that the nose d as well as the pawl h itself press the spring / against the spring f and thus the contact is brought about in the line i .

In Fig. 2, the position of the pawl h is marked with a single advance of the bolt b ; Although the nose d has given way to the spring /, the contact still remains due to the connection of the spring / with the spring / 'through the nose h' .

A complete release of the contact springs // 'is only achieved when the bolt b has come into the double closing position, whereby the pawl k can fall into the last notch, as FIG. 3 shows.

Claims (1)

Patent claim: Security lock with electrical noise device, characterized by the fact that is the advancing of the bolt (b) mounted on Schlief sheet of resilient, a repeated Verschlufs-producing rotary bolt (c) rotated in the Verschlufslage and locked by a resilient latch (h); so that even after the retrogression of the bolt (b) opening the Thür is only possible after the resilient pawl (h) has been turned by a key or the like. Only then is an electrical contact established by a nose (d) of the rotary bolt (c). For this purpose ι sheet of drawings.