US98608A - Improvement in safes - Google Patents

Description

IUNITED STATES WALTER K. MARVIN,

PATENT rrcE.

or NEW YORK, N. Y.

IMPROVEMENT IN SAFES.

Specification forming part of Letters Patent No. 98,608, dated January 4, 1870..

To all whom t may concern Be it known that I, WALTER K. MARVIN, of the city, county, and State of New York, have invented certain new and useful Improvements in Safes; and Ido hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings.

My invention is directed, rst, to the mode of `attaching to safes the angle-irons, by which their edges and corners are protected and, secondly, to the construction of the an gle-irons themselves.

j It has been usual to place angle-irons upon the edges of safes in order to protect the joints formed at the junction of the sides; but when such irons were first so placed their edges were left unprotected, as shown at ct, Fig. 1, so that by inserting tools under them the angle-irons could be forced off with comparative ease, thus leaving the joints lof the safe uncovered. To remedy this diliiculty the panels formed by the angle-irons were illed up by plates, which were made flush with the irons, and then riveted to the walls of the safe, as shown at b, Fig. l; but this arrangement, also, is defective, for experience has shown that by means of apunch or drill rivets can be removed, thus enabling the burglars to take off the panel-plate and pry oli', as before, the angle-irons.

My object, therefore, is to obviate this difliculty, and I do so by making the exterior plates of the safe of the full thickness of the main plates and panel-plates under the old arrangement, and then planing down, or otherwise reducing, the safe at the edges, so as to form angular recesses, `in which the angle irons have their seats. Thus the spaces formerly filled by the riveted panel-plates are lilled by metal, which is in one andthe same piece with the safe body.

My invention further consists of a solid corner for safes, composed of iron or steel, or of iron and steel welded together, and showing no joint whatever, as will be hereinafter described.

In the drawings, Figure l represents the old methods of arranging the angle-irons and panel-plates, as above mentioned. Fig. 2 represents the angle-iron and sides of the safe, combined in accordance with my invention.

Fig. `3 is a representation in cross-section of one form of my improved angle-iron. Fig. 4 is a perspective view of one portionof the angle-iron, which is used to form the solid corshape. Fig. 5 is a like view of a inished corner.

ln Fig. 2, c d are the solid exterior plates of a safe, which, at their junction, are planed down, or otherwise reduced, so as to form the angular recess, in which the joint-protecting angle-iron f has its seat. The angle-iron is secured to the safe-body by means of rivets or conical bolts, which are put in about four inches apart, and in ordinary safes have a diameter of at least one ,inch at the head. It will be seen that the solid wall c' d occupies the spaces between the angle-irons formerly lilled by the riveted panel-plates b, as shown in Fig. l, and that, therefore, the edges of the angle-iron are fully and completely and permanently protected.

The angle-iron I prefer to employ is represented in Fig. 3. It is composed of the two exterior layers of irons g and central layer of steel L, all welded and rolled together into the proper angular shape.

The angle-iron may, however, be composed of twoor three or more layers of welded iron and steel, and the order in which the layers are placed may be varied as circumstances require. A very strong and durable iron is thusproduced, which is admirably adapted to protect the edges of the safe.

clearly in Figs. 4 and 5. rJhe material of which it is formed may be either iron, steel, oriron and steel in welded layers, as above described. The corner is formed of -a strip of angle-iron, from one side of which, at the point at which the corner is to be formed, a triangular piece is cut out, the apex of the triangle being an angle of ninety degrees, if the corner is to be square, and each side h of the cut making an angle of forty-five degrees with the line of bend t' of the iron. After this is done the iron is bent by suitable means, solas to bring the two sides h in contact, which are welded together, as indicated at k, and a solidV corner is thus formed. To this corner is welded, in any suitable manner, the angle-iron Z, which is to protect the edge of the safe not protected by the two angle-iron strips m n, so that from ner before it has been bent into its ultimate The con struction ofthe solid corner is shown the-solid corner v'radiate the threen'gle-irons which cover and shieldy the three edgesoffthe 'to secure by Letters'Pitent, is-

1. The' combination, in a safe, of the angleirons, with the solid exterior., plates plened down or otherwise reduced at the edges of the safe, so as to form recesses in the solid metal, for the reception of said angle-irons, as shown mid set forth.l

2. .Asafehaving the enge-iron'mfwhch meet y at the. corners 4upon itsfexteror `formed lend united substantially as described, so as to constitute solid corners, as set`forth.

In testimony whereof I have signed my .name to this speitcation before two subscribingwi-tnesses.

WALTER K. MARVIN.

v Witnesses H. A. CooK, fr L.- G.y WILSON.

Images