US1485363A - Safe construction - Google Patents

Description

March 4 1924.

D. H. BELLAMQREv ET AL SAFE CONSTRUCTION Filed Il? 16 1922 lgri,

rrrrr fr INVENTOR.

ATTORNEY Patented Mar. 4, 1924.

UNITED STATES PATENT OFFICE.

DAVID H.'BELLAMORE, OF NEW YORK, N. Y., AND CARL BARTELS, OF HAMILTON, OHIO, ASSIGNOR-S TO THE MOSLER SAFE COMPANY, OF HAMILTON, OHIO, A CORPORA- TION OF NEW YORK.

SAFE CONSTRUCTION.

Application led May 16, 1922. Serial No. 561,454.

To all whoml t 'mf/2] concevoir.'

Be it known that we, DAvm H. BnLLAMomi and CARL BAn'rnLs, both citizens of the United States, residing, respectively, in the borough of Manhattan, city, county, and

State of New York, and in the city of Hamilton, county of Butler', and State of Ohio,

have invented certain new and useful Improvements in Safe Constructions, of which 1o the following is a specification.

Our invention relat-es to the construction of safes, and more particularly relates to a joint or seam for use in the manufacture of safes built up of sheet metal plates and drawn or rolled steel sections.

Herctofore ins'afe construction thev joining of two adjacent parts has been accomplished by providing a U-shaped portion on one of the parts forming a groove or rabbet 2o into which the edge of the other part may be locked and welded. This U-shaped formation has been provided by bending the metal in sharp 'angles which tend to produce cracks. The joint thus formed is not resilient, and should one or both of the parts become distorted or expanded as aresult of being tampered with or subjected to the action of heat, the metal is apt to crack at the angles and to gap open.

One of the objects of our invention is to provide a safe having parts joined together in a joint or seam which is so constructed as to avoid the format-ion of sharp angles which would tend to produce crac-ks or gaps during the process of manufacture, or thereafter. Another object of our invention is to provide a resilient 'oint or seam for firmly and permanently joining together adjacent p'arts of a safe, but at the same time permitting a certain amount of distortion of the parts and functioning to decrease the tendency of the joined parts to produce cracks or gaps at the joint when the parts are tampered with or expanded under the influence of heat. Other objects will be in part obvious and in part pointed out hereinafter.

In 'accordance with our invention we provide a locking rabbet or groove by means of a member which is substantially U-shaped in cross section and in which the bottom portion of the U curves into its two sides, instead of fashioning this member, as formerly, in such a way that the bottom portion of the U makes sharp angles with its side portions.

f groove.

The edge of an adjoining safe part is adapted to be received and locked within the This curved formation of the walls of the groove avoids the formation ot' sharp angles, thus lessening the tendency to produce cracks, and moreover provides a resilient joint which permits of a substantial. degree of expansion or movement of the two joined parts without producing cracks or gaps at the' joint. Obviously, this construction of joint may be embodied in any one of a number of different types of safe and it is to be understood that our invention is not limited tothe specific embodiment illustrated in the accompanying drawings to which we now refer, and in which Fig. 1 represents a sectional view of a portion of a safe embodying our invention; Fig. 2 is a fragmentary view, partly in section and partly in elevation, of a safe embodying our invent-ion. Similar reference characters refer to similar parts throughout both views of the drawings.

Referring to the drawings, the safe comprises a construction which, except for the joints or seams, is believed to be well known. The construction comprises an outer safe A and in inner safe B. The outer safe has outer walls 1 and inner walls 2 formed by sheet metal plates, the outer plates 1 being joined to sheet metal corner boxes 3. The corner box 8, where it is joined to the margin of plate 1, is provided with an integral U-shaped portion forming a rabbet or groove t in which the margin of plate 1 is received and locked, the opening of the U- shaped portion being presented toward t-he plate 1. The U-shaped portion of the corner plate 3 comprises the inner flange 5, bottom portion 6 and the outer flange 7 the flanges 5 and 7 respectively comprlsing the two sides of the U and the connecting portion 6 curving into the two sides. The outer surface of side plate 1 is overlapped by the flange 5, as shown. The flange 7 is preferably extended beyond the flange 5 and is welded near its outer end to the inner surface of the plate 1, as at 8. From the foregoing itjwill be readily apparent that the formation of sharp angles at the joint is avoided, and, moreover, since the portion 6, which constitutes the bottom of the groove, is curved, a resilient joint is formed and a substantial degree of expansion and distortion is permitted to the plate 1 and to the corner .boX 3 Without producingpcracks or gaps at the joint. Added resiliency lis obtained lby means'of the extension of the outer flange 7 ofthe grooveandby staggering Lthe contact of the inner flange 5 With plate l in respect to the contact of the eX- tended outer flange 7, as shown. v Y

As many changes could be made in the above construction and `many apparently VWidely different embodiments of this invention could be made Without departing from the scope thereof, it is intended that all matter contained in the above description or shown inthe accompanying drawings Vshall be interpreted as illustrative and not in a limiting sense.

What We claim is: Y l. In safe construction, in combination, a safe part having an inner flange and an outer lflange extend-ing beyond said inner flange and having a resilient curved bottom connectingy said flanges, and a safe Wall having a straight flat portion seated between' said flanges, Vsaid zWall porti-on contacting said linner flange, and contacting said outer flange vat la pointbeyondirts'point of contact With said inner flange; y I

2.111 safe construction, in combination, a flat Wall member and a safejpart having an inner flange and an outer flange in staggered relation and having a distended,

curved, resilient, bottom portion connecting said flanges, said flanges abutting a straight 'fiat portion of-saidfwall member'onf opposite sides. p

v3. In safe construction, a resilient -joint formed by a safe part'having an integral resilient portion substantially U-shaped in ycross section, the bottom of said U-shaped portioncurving into the sides` thereof, and a safe vWall having a straight flat marginal portion interlocking with said -U -shaped portion and secured thereto in staggered contact With the sides of said U-shaped portion.

14,. 'In-safe construction, a resilient joint comprising in its construction, a corner box having a resi-lient, integral, marginal portion substantially U- shaped in cross-section,

Zthe bottom oit said U-shaped'portion curv ing into the sides thereofl and one'of'the vsides Vextending"beyond .the other, said U- shaped portion being adapted to receive between its sides the edgeof a Wall plate withy the extended side of the U-shaped 4portion 'abutting against'and Welded'to one surface of said plate and the "other side o'f'thelU- shaped member abutting I against Vthe opposite surface 'of'said plate. p

This specification 'signed and witnessed this 3rd 'day of `March, Y1922.

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