US863584A - Bolt for burglar-proof safes. - Google Patents

Description

No. 863,584. PATENTBD. AUG. zo, 1907. 'l G. E. BLEGHSUHMIDT.

IBOLT FoR-BURGLAR PROOF sAFEs.

AAAAAAAAAAAAAAAAAAA 20,1907.

UNITED STATES PATENT QEFIQE.

CHARLES E. BLECHSCHMIDT, OF CONNERSVILLE, INDIAXA.

BOLT FOR URGLAR-PROOF SAFES.

Specification of Letters Patent.

Patented Aug. 2o, 1907.

Application filed May 20.1907. Serial No. 374.669.

To all whom it may concern:

Be it known that I, CHARLES E. BLECHsCHMInT, a citizen ofthe United States, residing in Connersville, in the county of Fayette andState of Indiana, lia-veinvented certain 'new and useful Improvements in Bolts for BurglarfProof Safes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciagain to a normal position unshattered and in a normal condition. A 1

I have illustrated my improved bolt construction in connection with an ordinary circular manganese steel bank safe, butit will beevident that my improvement of bolt may be employed in the construction of any safe Where it is desired to obtain the resilient action hereinafter described:

In the drawings: Figure l is a front elevation of an ordinary circular bank safe. Fig. 2- is a central vertical section of same. Fig. 3- is a rear elevation of the door of the safe. Fig. 4- is an enlarged detailed View in perspective of asmall portion 'of the door showing one of my improved bolts. i

1 is the shell of the ordinary circular bank safe,

,usually constructed, in a singlepiece, of cast manganese v steel, say three or more inches in thickness, and provided with the standard 2, for a base,' with rollers 3-3 for convenience in moving the safe from place to place. A beveled circular opening is left in the front wall of the casting for access to the interior, and provided With a circular door -4 to fit the opening, and the joint between the door and the safe wall is usually a ground joint. The door is swung on an ordinary crane hinge consisting of a yoke h5, pivoted on the' pintle 6 secured .on the exterior of the safe at the side of the door opening, and the innerends of the yoke are pivoted on studs attached to lugs'7--7 secured toY the door.

For opening and closing the door in the construction illustrated, I provide a tapered arbor -8 controlled by handle `9 which passes through a central opening cast in the door and is secured to the circular plate 10 on the rear surface of the door. This plate 10 is pivotally connected by the curved links 11 to the bolts 12, these bolts passing through suitable slots in the bolt frame 13 which is cast, a ilange, iniegral Willi the door. The movement of the arbor and ille plato 10 is controlled by an ordinary permunuion lock actuated by the handle or knob lslin connection with the usual dial plate 15, or the bolts may be thrown by any other of the Well known devices controlled in any f other Well known Way.

It will be -understood'that the .particular kind of safe and the particular construction-of door and locks for controlling same, have no part in the present invention, Which relates to the construction of the bolt or bolts employed to` secure the door in place.

In Fig. 4, I have illustrated-this novel construction .of bolt, and it consists of a plurality of resilientrplates 1.6-16 of the proper size and shape to form when placed on top of each other, a substantial bolt or fastening device of thel size required. These plates 16 Which are preferably made of spring steel, are merely laid on each other without being fastened together except Where pivoted by the bolt 17 to the link 11. The bolt frame 13 is formed with the slot 18 through which the kspring plates are passed and by which they are held together. In order t0 obtain somewhat better results,

'I prefer to give a slight bend to these bolt plates as 4Shown at 18, although this may not be necessary in allV cases, and where it is not desirable to use the construction of bolt frame illustrated in the present case, with the slots through same for holding and guiding the bolt as an entirety the plates may be held together by a thin band oi metal. i

With bolts of the construction illustrated, the explosive orce of any charge oi' nitroglycerin or other high explosive pumped in around the door, for the purpose of'blowing the door open, causes the door to spring away from the safe Walls a short distance against the resilient force of the bolts Without shearing off or shattering the bolts, so that they immediately spring back to normal position holding 'the door locked. Such is the resilient effect of the bolts, that no charge of high explosive which-can be inserted around the door is sufficient to shatter the bolts.

.i Having thusA described my invetionn what I claim as new and desire to secure by Letters Patent, isz- 1. A'bolt for safes comprising a plurality of resilient plates of suitable material superimposed to form a resilient body of the size required for the pui-pose. specified. 2. A bolt i'or safes comprising a plurality of springl steel plates slightly bowed to give greater' resiliency, said platesbeing superimposed to form a resilient body of the size required for the purpose speciiied4 3. In a bolt construction for safes, the combination with the door, ol' a plurality of resilient plates of suitable material superimposed to form a resilient bolt with means for supportingl and holding the bolt in alinement on the door.

4. In a bolt construction lor safes, the combination with the door provided with a bolt frame on its inner surface, with slots in the frame, and a plurality of resilient plates of suitable material superimposed to form bolts, said bolts passing through and held in position by said slots. t 5. In a circular bank safe, the combination, with a circular door, provided with a flange on its inner surface to form a bolt frame, a rotatable plate mounted within said flange, with means for actuating same from ivthout the safe, a series of links pi voted on said plate; and a plurality of resilient plates of suitable material superimposed to `form bolts, with slots in the bolt frame through which said bolts pass and pivoted connegtion -for said bolts to the 'outer ends of said links, whereby said bolts may be thrownV

Images