US1786976A - Gas-discharging device for safes - Google Patents

Description

Dec. 30, 1930.

H M. ANDERSON GAS DISCHARGING DEVICE FOR SAFES Filed Nov. 7, 1928 Patented Dec. 30, 1930 UNITED STATES PATENT OFFICE H MILLER ANDERSON, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE LAKE ERIE CHEMICAL COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO e GAS-DISCHARGING Application filed November into an enclosure such as a vault or safe.

Numerous other objects and advantages of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawings, discloses a preferred embodiment thereof.

In the drawings:

Figure 1 is a perspective view of an improved gas discharging mechanism constructed in accordance with the invention Fig. 2 is a front elevational view of the same;

Fig. 3 is a vertical section, partly in elevation, showing the parts of the poison gas bomb firing mechanism; and

Fig. 4 is a top plan view, partly in section, of the supporting bracket for the firing mechanism and the gas bomb.

One of the usual modes of application of the invention is to a vault door, a fragment of which is shown at 11 in Fig. 3. The vault door 11 is provided with the usual combination lock contained within the 60 x or casing 12, mounted on the inner surface of the door and controlling the operation of the usualbolt work, not shown, which is advanced into suitable keepers in the door frame to lock the vault and retracted to release the vault door for opening movement.

A common mode of procedure on the part of a burglar attempting to force an entry into a vault is to punch or blow in, or otherwise dislocate the combination box from the vault door. The illustrative gas discharging mechanism is shown as controlled in its operation by such dislocation of the combination box.

The various parts of the gas bomb discharging mechanism are supported by a bracket 13 comprising a vertically arranged plate member 14 provided with holes 15 whereby it may be secured to the inner surface of the vault door 11. The upper end of the bracket plate 14 is provided with an inwardly extending overhanging shelf or support 16, and the lownEvroE ron. SAFES 7, 1928. Serial No. 317,811.

er end of said plate 14 with a pair of inwardly extending horizontal supporting lugs 17.

Secured to the plate 14 and projecting inwardly therefrom are superposed supporting rods 18 and 19. The upper supporting rod 18 is made somewhat shorter in length than the lower rod 19, as shown in Figs. 1 and 3. These supporting rods 18 and 19 are respectively provided with alined vertical holes 20 and 21 constituting bearings for the passage of a vertical firing pin 22. The upper end of the firing pin 22 extends approximately to the lower surface of the shelf 16 and said pin is formed with a channel or socket 23 extending part way down from its top. The channel or socket 23 receives a coil. spring 24, the upper end of which engages the lower surface of the shelf 16 and the lower end the bottom 25 of the socket 23. When the firing pin is released, the spring 24, which is maintained normally under compression, will cause the firing pin to drop with a sharp blow and hit the cap or firing plunger of a poison gas bomb.

The firing pin 22 is released for operation by a trigger mechanism, as follows:

As shown in Fig. 3, the pin 22 is provided with an annular horizontal groove 26 located in that portion of the pin which is normally disposed within the bearing hole 20 in the upper supporting rod 18. A trigger pin 27 projects through a hole in the free end of the rod 18, in registry with the groove 26, and enters said groove normally to hold the firing pin in its elevated inoperative position. The 1 trigger pin 27 is secured at 28 in any suitable manner to the trigger operating bar 29. This bar 29 is provided with a yoke 30 at its lower end which embraces the squared end portion 31 of the rod 19. From the opposite wings of said yoke, ears 32 project parallel with the sides of said portion 31 and are pivoted thereto in any suitable manner, as shown at 33. -This construction permits a pivotal swinging movement of the trigger operating bar 29.

The trigger operating bar 29 is bent at 34 into the horizontal portion 35, which overlies the shelf 16, and thence is rebent at 36 into the upstanding end 37.

This end 37 is made I )ng enough to extend upwardly beyond the ottom of the combination box 12 and is seured by any suitable means, such as ascrew 8 to the rear face of the combination box. L leaf spring 39 bears against the trigger perating bar 29 and exerts pressure thereon thrust said bar outwardly. This leaf pring 39 is secured at its opposite ends 40 y screws 41 fast to the horizontal shelf 16. Vith the above described construction, disocation of the combination box from any ause, will impart a pivotal swinging movement, assisted by thespring 39, to the trigger vperating bar 29, in a direction away from he end of the rod 18. Such movement about he axis 33 will withdraw the trigger pin27 From the groove 26 in the firing pin 22 and )ermit the spring 24 to operate the firing pin n the manner hereinbefore described. The eaf spring 39 is made strong enough to in- :ure a quick, positive operating movement .0 the bar 29 whenever the combination box s dislocated.

As shown in Fig. 3, the groove 26 in the iring pin 22 may be made relatively shallow. Hence, very little movement is required to lisengage the trigger pin 27 from the firing in 22, and the action is therefore instantane- )us.

The gas bomb for discharging the poison gas into the vault or other enclosure is nounted in such position that the cap or )ther bomb operating device receives the impact of the firing pin 22. As shown in Fig-- ires 1 and 3, the firing pin 22 is provided at ts lower end with a point 42 for striking ;he cap or other operating device of the gas )omb to discharge the same. The gas bomb s indicated by dotted lines at 43 in Fig. 1, LIld is provided with a cap or other firing device 44. A supporting bracket 45 is provided For positioning the gas bomb 43 beneath the iring pin 22. This bracket 45 consists of a vertical bar 46 havin its lower end bent inwardly to provide a short flange 47 which ex- ;ends below the bottom edge of the plate 14 aetween the horizontal lugs 17. The upper and of the vertical plate 46 is provided with a. hole 48 by which the upper end is hung )n a pin 49 projecting inwardly from the oracket plate 14. There is also provided at the upper end of said supporting bracket 45 i collar 50 which embraces and supports the flanged top of the bomb 43. This construc' tion provides a simple and eflective support for the removable bomb 43.

If desired, the bomb 43 may be protected by a casing 51 supported at its lower end on the lugs 17 and extending upwardly to the shelf 16, as shown in Fig. 2. The casing, however, will permit the escape of the noxious fumes of the poison gas on the discharge of the bomb 43 and for this purpose is provided with an opening 52. A pin 53, insertable in a lateral hole 54 in the pin 49, may

be employed to prevent displacement of the bracket 45. This pin 53 is curved so as to be easily manipulated. If desired, the pin 53 may be also utilized for the purpose of locking the firing pin 22 against movement. In this case, the rod 18 is provided with a hole 55 located in one of its sides and in registry with the groove 26 in the firing pin 22. By-

the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

tion box, of a supporting bracket mounted ad acent thereto, a poison gas bomb carried by said supportin bracket, a firing mechanism for said bom also carriedby said supporting bracket, said firing mechanism comprislng, a? pair of pin guiding rod members, a firing pin guided thereby, said firing pin being provided with an annular groove disposed within one of said rodmembers, a

trigger entering the head of said rod member and engaging said firing'pin within said groove, aspring adapted whenreleased-to project said firing Ipin into bomb dischargmg engagement wit said bomb, a trigger op-. erating bar pivoted to the other of said pin guiding members and engaging said trigger,

said trlgger operating bar being secured to said combination box, whereby to releasesaid grigger on dislocation of said combination ox. i

2. The combination with a vault combination box, of a supporting bracket mounted adjacent thereto, a poison gas bomb carried by said supporting bracket, a firing mechanism for said bomb also earriedby said supporting bracket, said firing mechanism com prlsing, pin guiding rod members, a spring operated firing pin guided thereby, a trigger;

engaging said firing pin for holding the same normally inoperative, a trigger operating member for releasing said trigger on dislocation of said combination box, and a spring for throwing said trigger operating member 1. The combination with a vault combinato trigger releasing position on release thereof by said combination box.

3. The combination with a vault combination box, of a supporting bracket mounted ad acent thereto, a oison gas bomb carried by sa1d supporting racket, a firing mechanism for said bomb also carried by said supporting bracket, said firing mechanism com risin a air of pin guidin rod menibers, a firing pin guided therebg said firing pin being provided with an annular groove disposed within one of said rod members, a trigger entering the head of said rod member and engaging said firing pin within said groove, a sprlng adapted when released to project said firing pin to bomb discharging engagement with said bomb, a trigger operating bar pivoted to the other of said pin guiding members and engaging said trigger, said trigger operating bar being secured to said combination box, whereby to release said trigger on dislocation of said combination box, anda spring for throwing said trigger operating bar to trigger releasing position on release of said bar by said combination box.

H MILLER ANDERSON.

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