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Publication numberUS1026207 A
Publication typeGrant
Publication dateMay 14, 1912
Filing dateFeb 3, 1911
Priority dateFeb 3, 1911
Publication numberUS 1026207 A, US 1026207A, US-A-1026207, US1026207 A, US1026207A
InventorsPierce X Johnson
Original AssigneeJohnson Bradford Safe Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Burglar-proof safe.
US 1026207 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

P. X. JOHNSON. n BURGLAR PROOF SAFE. y l `APPLIAIIN FILED FEB. 3, 1911, 1,026,207. Patented May 14, 1912.





1,026,207. V111161111111May14,1912.




BUneLAa-rnoor sans.

Patented May ia. 1era.

appiication med February s, 1911. 'serial No. 606,312.

To all whom z'tmay concern.

' Be it known that I, Pinnen X. Jonsson, a .c itizen of the United States, residing in the city and county of Denver and State y'of Colorado, have invented certain new and useful Improvements in Burglar-Proof Safes; and Ido declare the followingto be a fulhclear, and eXact description ofthe invention,l such as will enable others skilled in the art to which it appertains t-o make and use the same, reference being had to they accompanying drawings, and to the charf acters oi .reference marked thereon, which form a partof this specication.

My invention relates to improvements in safes, my object .being to provide a safe which cannot be blown open. a

The principle employed in my present in- A vention consists in perforating the walllof the safe in such a manner that'the vforce of an explosive cannot be suiioiently confined to seriously injure the safe.

I prefer to construct the wall of the safe4 of a number of members suitably spaced to form intervening air chambers, each member being perforated, the perforations of the adjacent members being staggered.

As illust-rated in the drawing the wall is composed of three members, the material employed being preferably manganese steel, which is so hard that it is practically imf possible to drill, -bore orotherwise mut-ilate it by the usual instruments employed by safe burglars.

The perforations employed in connectionl with the walls of the safe are preferably elongated and relatively thin. By providing intervening air chambers, the nitroglycerin, the usual agent employed in b1owing safes, is in liquid form and if injected through the narrow perforations of the outerv wall, it will run downwardly in the air chamber adjacent the wall and either explode before any considerable amount has collected, or will run out'l through other,` perforations either in the lower part of the wall or in the bottom, of the safe, which is also perforated. e

Within the wall composed of the perstruction forated members is located a ireproof vlinmay be ofordinary coning or box which Having briefly outlined my improvedcow struction, I will proceed to describe the4 same in detail, reference beingr mada tothe accompanying drawing in which is illus` trated an embodiment thereof.`

In this drawing: Figure his a YYcrt-ical section taken through a. safe eqiiipped with my improvements. This.' section is -taken through the safe on a plane parallel' with the door when the latter is closed, the sec# tion being indicated on the line 11,Fig.

2. Fig.V 2 is: a .horizontal 'section taken through the safe on the lie 2-2, Fig.

Fig. 3 is an inside view of the door, two Yof the three wall/members of which the-.door

is composed being p artly brol'en away to disclose the outer member. Fig-4 is a perspective View of my improved. safe. Fig. 5 is a perspective view in detail of a spacing bar employed innconneotion with/the separaped telescoping members lof my'improved sae.4 .Y

The same reference characters indicate the same parts in all the views.

`Let the numerals 5, (i and@ respectively designate three wall members et a sate, the said members constituting the top, bottom, sides and rear walls of the safe, in other words, forma conlplete inclosure except in front where the door 8 is employed.

The numeral designates the outermost member of the wall', the numeral `6 the intermediate member; and the numeral 7 the innermost member. Each of these members isproyided with pertorations 9 which may -be of any suitable formation, I prefer that they consist of narrow elongated openings and that they be sutliciently numerousto make it impossible to suiiicientlyr conne explosive orce within or between the wall members, to seriously injure the sate by the use of the high explosives ordinarily employed for .this purplose.

As illustrated in the drawing the wall members are separated by spaces l0, a simii lar space 12 being left between the innen suitable manner. As illustrated in the draw,-

ing angle-shaped spacers 14 are employed, both for spacing the perforated wall members and also for spacing the innermost perforatedwall member from the fireproof box or lining. These spacers may be either continuous from the front to the rear of the safe, or they may be broken or separated, whereby an explosive introduced' into the spaces bet-Ween the wall members may pass downwardly and out at the bottom of the safe through the perforations formed therein.

As illustrated in the drawing it is assumed-that the wall members are made complete and of manganesevsteel.` In assembling the said members, the spacers 14 are placed in the lowermost corners of the outermost member 5. The member 6 is then inserted, being moved from the front rearwardly, its corners engaging counterpart recesses in the spacers 14. This member is pushed rearwardly as far as it will go. Spacers 14 are then put in position in the' lower corners of the member 6, after which the member 7 is moved into place in the same manner; and finally the other spacers 14 are placed in position in engagement with the member 7, after which the ireproof boxor lining 13 is inserted.

The door is hinged to the outer wall member of the safe as shown at 15. This door as illustrated in the drawing is composed of three members to harmonize with the members 5, 6 and 7 constituting the top, bottom, side and rear walls of the safe as heretofore explained. These members of the door are respectively designated 16,17 and 18, 16 being the outer member, 17 the intermediate member and 1S the innermost member. The areaof these members diminishes as they extend inwardly. and their edges are beveled to fit correspondingly beveled edges formed on the. wall members of the safe. For instance, the vertical edges of the wall .members 5, 6 and 7 extend inwardly as shown at 19, 20 and 21, to form shoulders adapted to be engaged by the outer extremities of locking bolts or bars 22 which are located in spaces 23 and 24 left between themembers 1G and 17 of "he door. These bars 22 engage lugs 25 whit-,h are recessed to receive the bars, the lugs thus forming guides for the said bars. The inner extremities of these bars are enlarged, these enlargements being provided with openings 26, which as illustrated in the drawing are somewhat elongated in a vertical direction. Through these openings of each pair of bars 22 is passed a manipulating spindle 27 having cam projections 28,one of said projections being-adapted to engage the enlarged inner extremity of one bar 22, and the other cam the corresponding inner extremity of the other bar 22. These cams are oppositely disposed so that as the spindle is rotated the bars are moved in opposite directions. That is to say, both bars are either thrown outwardly into engagement with the shoulders 19 and 20 of the wall members Stand 6, or drawn inwardly whereby they are disengaged from said shoulders, depending upon Whether it is desired to open or lock the door of the safe. As illustrated in the, drawing there are two spindles 27, each of which is employed to manipulate two sets of bars 22, .one'set being interposed between the outer and intermediate members of the door, whilethe other set is interposed between the intermediate and innermost -door members.

Each spindle 27 is suitably journaled in the door of the safe, whereby it may be employed to manipulate the locking bars. The door members are further connected by. projections 29 formed on the\ outermost member and protruding through openings formed in the other two members of the door. These projections are surrounded intermediate the` door members by spacing washers 30. The inner extremities of these projections protrude beyond the innermost member of the door and are .provided with openings 31 adapted to receive locking keys, whereby the door members are properly maintained in the assembled relation.

The outer extremity of each spindle 27 is shouldered as shown at 32 and provided with a'hand manipulating knob 33; while its inner extremity is equipped with a retaining key 34.

In order to space the wall members of the safe in the rear,the spacing bars 14 are provided with rearwardly located shoulders 4, these shoulders being located far Venough from the wall member against which the bar abuts, to properly space the wall members,

atthe back of the safe.' It willbe understood that as the telescopingmembers are put in place, they cannot be moved rearwardly beyond the shoulders 4 of the spacing bars 14.

Having thus described my invention, what I claim is:

1. A safe whose walls are' composed of a number of telescoping members suitably spaced and perforated, for the purpose set. forth.

2. A' safe having a wall composed of a plurality of perforated members arranged in parallel relation and separated by air spaces, forv the purpose set forth.

3. A safe having a plurality of walls, each provided with a multiplicity of narrow slots, for the purpose set forth.

1,026,207 I, Y f 3` 4. A safe havingl a Wall composed of ran ed in staggered relation, substantially -10 number of members separated by a-ir spaces, as 'escribed each member being provided "with a multi- In testimony whereof I aixmy signature l. lfolicily of narrow slots, for the purpose set in presence of Atwo witnesses. ort

5. A safe Whose Walls are composed of a PIERCE X' JOHNSON plurality of telescoping members suitably n Witnesses: spaced and provided with perforations, thev ELMER D. BRADFORD, 4 perforations of'adjacent members being ar- A. EBERT OBRIEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, ZD. C.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2427566 *Nov 9, 1943Sep 16, 1947Youngstown Steel Door CoLifting device
US3241870 *Apr 4, 1963Mar 22, 1966Rhodes Inc M HLatching mechanism
US4178859 *Aug 30, 1977Dec 18, 1979Bochumer Eisenhutte Heintzmann Gmbh & Co.Door-like closure
US5216965 *Jun 15, 1992Jun 8, 1993The United States Of America As Represented By The Secretary Of The NavyRelocatable explosives storage magazine
US6702230 *Jun 4, 2002Mar 9, 2004The Boeing CompanyBallistic resistant flight deck door assembly having ventilation feature
US8424443Jan 31, 2011Apr 23, 2013The United States Of America As Represented By The Secretary Of The ArmyVented armor V structure
US8459167Feb 14, 2013Jun 11, 2013The United States Of America As Represented By The Secretary Of The ArmyVented armor V structure
U.S. Classification109/27, 292/37, 109/78
Cooperative ClassificationE06B5/12