DE453491C - Security lock with secret setting and noise shot - Google Patents

Description

GERMAN EMPIRE

ISSUED ON DECEMBER 10, 1927

REICH PATENT OFFICE

PATENT LETTERING

M 453491 CLASS 68 a GROUP

Reinhold Depold in Breslau.

Security lock with secret setting and noise shot. Patented in the German Empire on May 19, 1926.

The invention relates to a safety lock in which an unauthorized opening attempt by a noise shot and, if desired, also indicated by an electrical signal system S will. According to the invention, the lock has a sliding hand bolt in it conceals a hinged lid that usually hampers access to the latter, which is held in the closed position by a pivoting bolt. To the Rotation of this latch serves a stack of adjustable slices that follow each one previous setting coupled to a certain point by pulling the rotary bolt can be. If only one of these disks is not properly adjusted, so is pulling them out and coupling them with the bolt is impossible. If you try to open the lid by force, so are two noise-shot cartridges, with their tear-off device the swiveling bolt is engaged, brought to discharge. With the locking button of the noise shot cartridges the contact of an electrical signal system can then also be connected, which is also the case when attempting to open it is closed. To prevent the scanning of the correct setting of the discs a protective grille with circular recesses is also provided, in which the coupling pins with the; Adjusting washers connected toothed washers when turning the latter around and simultaneous axial shifting.

The invention is illustrated in the drawing in eight figures :

Fig. Ι the lock case 1 with opened Cover 2,

Fig. 2 an adjusting knob with the associated toothed disc,

Fig. 3 the barrier,

Fig. 4 and 5 two further adjustment knobs with the toothed ones connected to them Discs,

Fig. 6 the noise shot cartridge 6 with contact and power connection spring,

Fig. 7 the lock built into the door, of which only the closed box lid is included the adjustment knobs (on a smaller scale) is visible,

Fig. 8 a section through the adjustment device with the inwardly pressed, d. H. knobs detached from the turning bolt.

The lock has a bolt 3, which is on the rear wall inside the box Ί out and can be operated by hand with the lid 2 open; the lid of the box is provided with a secret lock. This secret lock consists of one Swivel lock 8 and a number of adjustable discs. This is made up of several Signless buttons 9, 10, 11 arranged one above the other (Fig. 8), their stem-like Approaches in each other / rotatable, namely

so that the handle of each button always sits in the one behind it. The handle of the rearmost button 9 has a nose-shaped extension 16 at its end, the other handles carry disks io ^a , ii ″, which are provided with coupling pins 17, 18. The edge of the disks is formed with arched teeth; Leaf springs' which give perceptible or audible signs when the buttons are turned. These pins correspond to 8 holes ij ", i8 ^a in the swivel lock the buttons can be pulled forward by pushing the pins into the corresponding holes of the bolt. Only those who know the setting can effect the correct setting of the disks 9 to 11. The unauthorized scanning of the correct button setting is intended to be done by a locking grille 12, which lies above the swivel lock washer, can be made impossible The lock can only be opened by unauthorized persons by breaking the cover 2, with noisy shots and electrical noise signals are triggered. As a result of the engagement of the nose 16 and the pins, the rotary knobs 9, 10, ii are coupled to the swivel bolt 8, so that the rotary movement of the discs is transmitted to the swivel bolt 8. The noise shot cartridges 6, 6 " are conveniently attached to the left and right of the box floor;" They consist of ordinary revolver cartridge cases which are filled with blasting compound and each provided with a pull wire. The ignition wire is passed through the mushroom-shaped locking button of the cartridge, which is provided with a groove, and is held in place by a screw in the cap. The swivel bolt 8 engages in the groove under the head of each mushroom-like button at its two curved ends. 4-5 The setting symbols can be changed by moving the coupling pins into the. Toothed ^{disks io ff} , ι i ^a and the disks themselves on their square, can be changed as desired by using swivel bolts with different arrangements of the nose recess and by rotating the adjustable locking grid 12. The drawing shows the lock 1 with the cover 2 opened. On the rear wall of the box is the sliding bolt 3, which is held in the locked position by a leaf spring 4 attached to the right-hand box wall. Under the locking bar 3 on the inner box wall there is a fork S and 5 ^a on the right and left, into which the cartridges are inserted from above. In the same height of the closure heads of the cartridges stops 7 and j "are on the side walls of the lock case arranged, into which the pivot bolt 8 engages, closes the box lid 2 and 6 and 6 ^a coupling simultaneously with the tear-off cartridges. The opened lid 2 shows the swivel bolt 8 without adjustment buttons and locking grille, the adjustment buttons 9, 10, 11 with the associated toothed disks g ^a , io ^a , n ^a , the teeth of which are formed like an arc, reproduce the setting device in disassembled parts Cover 2, the toothed washer ψ is placed on the square and the swivel bolt 8 is pressed onto the end of the stem-like extension of the button 9, which rotates on its own axis 13 °, for which there are holes in the cover 2 under 22 and 22 ". The column 13 is inserted into hole 22; this is attached to the spring 23, which engages in the toothed disk ψ and cuts off with the lower edge of the disk g ^a. The 13 ° column goes into a 22 ° hole. The barrier grille 12 can be rotated to the right or left by means of two arcuate slots 20, 20 ^tt , whereby the setting options can be increased.

The springs 24 and 25 are arranged on the column I3 ^a above the barrier 12 and engage in the toothed disks io ^ä and ii °.

The barrier grille 12 is provided with slot-like recesses 21, 2 I ^s , which are arranged in a circle and are intended for the coupling pins 17 and 18 to pass through. The recesses are dimensioned in such a way that after coupling with the swivel bolt, a rotary movement of the button disks to the right or left until it stops is sufficient to close or open the cover 2.

The nose 16 of the button 9 circles over the Swivel lock washer 8 at the same height as the ends of the coupling pins 17 and 18, which move over the barrier gate 12.

Coupling pin 17 engages through the inner circle of the recesses 2i ^a and pin 18 through the outer circle 21.

The knobs and lock washers form a closed whole, which makes it impossible to scan the setting, unless that an unauthorized person should make the three settings at once. The tooth lock washers are so strong that when you pull out the buttons 9, 10 and 11, -by which the Coupling is made with the swivel bolt, not by the associated adjustment knobs fall off. -Button 10 is through

Button 9 passed through, and the gear disk ίο «is placed on the square of the button io; the same is repeated in a corresponding manner with button 11 or gear disk ι i ^a . At the end of the button 11, a leaf spring 14 is also placed, which gives the setting a firmer hold. The noise cartridge 6 is equipped with a contact and a power connection spring.

The mode of operation when opening and closing the lid is as follows: If the closed box is to be opened, all rotary knobs must first be brought into the rest position, which can be felt through a stop or two recesses in the corresponding toothed lock washers. The buttons 9 and 10 find their rest position when they are turned to the left or right, while button 11 may only be turned to the left as far as the stop iy . Then the button disks 9, 10, 11 are to be turned to the right up to the conscious sign and to be pulled forward, whereby the coupling with the swivel bolt occurs and the swivel bolt 8 is swiveled out of its locking and coupling position by a further clockwise rotation, whereupon the cover then moves 2 can open and the sliding bolt 3 is accessible. The lid is closed by turning the adjusting knobs to the left, whereupon they are pushed inwards and turned into another position as appropriate. In locks which are used to secure living spaces, the sliding bolt 3 is designed so that it can be used as a night bolt. The lock is screwed to a steel plate on the back of the door.

Claims (4)

Patent claims: 1. Security lock with secret setting and noise shot, characterized in that that the one to be moved by hand lock bolt (3) sheltering Lock housing (1) is provided with a hinged cover (2) whose pivotable bolt (8) through a stack of adjustable discs (9, 10, 11) is twisted, which after its setting by pulling out with the pivoting bolt (8) by means of a nose (16) and pins (17, 18) are coupled and so form the twist grip of the bolt (8). 2. Lock according to claim 1, characterized in that the pivotable bolt is coupled in its operative position with the tear-off device of noise shot cartridges. 3. Lock according to claim 1 and 2, characterized in that the circuit an electrical signaling device, known per se, arranged as an additional fuse on the head of the noise shot cartridge is appropriate. 4. Lock according to claim 1 to 3, characterized in that between the Swivel bolt (8) and the adjusting disks (9, 10, 11) coupling with it '' Barrier (12) with the coupling pins (17, 18) corresponding circular recesses (21 °, 21) is attached. For this purpose ι sheet of drawings. 6ERUN. PRINTED IN THE