US268819A - And belated devices - Google Patents

Description

3 Sheets-Sheet 2.

(No Model.)

J. ,H. NOLAN.

FIRE PROOF CHEST.

Patented Dec. 12, 1882.

INVENTEI R rgggmzs. Pnm-mwmwr. Washington a. c. l "q. l

AND RELATED DEVlCES.

-r f r v? (No Model.) 1 3 Sheets-Sheet 3. J. H. NOLAN.

FIRE PROOF CHEST.

No. 268,819. 7 Patented Dec. 12, 1882;

allo armies DEVECES.

UNITED STATEs JOHN H. NOLAN, or BOSTON, MASS,

PATENT OFFICE.

ASSIGNOR, BY lllESNE ASSIGNMENTS,

FIRE-PROOF CHEST.

SPECIFICATION forming part of Letters Patent No. 268,8f9, dated December 12,1882.

. Application filed March 21, 1882. (No model.)

To all whom it may concern Be it known that'I, JOHN H. NOLAN, of the city of Boston,in the county of Suffolk and Stateof'Massachusetts, have invented a new and useful Improvement in Fire-Proof Chests or Boxes, of which the following is a full, clear,

. and exact description, reference being bad to the accompanying drawings, in which like letters indicate corresponding parts.

Figurel is a perspective view of the box with cover lifted. Fig.2 represents a crosssection of the boxmidway of its width, at point indicated by p,in which the top plate, E, and bottom plate, A, are shown. It also represen ts the general arrangement of the sheets of incombustible fire-proof material overlaid with the carbonizable material-,as usually constructed byme. Fig. file a corner section of the metal plates and tire-proof material enlarged. Fig. 4 is a side and end elevation of a sheet of thecarbonizable material, showi-n g the general manneriof its use in overlapping the non-combustible tire-proof material shown in Fig. 5. I Fig. 5 representsthe fire-proof material, which is formed in layers or sheets, and which is placed inside'the .carbonizable material, as shownin Fig. 4. i Fig. 6 represents a sheet of themetal as cut out preparatory to being folded and lapped togetherto form the cover to the box. Fig. 7 represents themanner of folding the sheets forthe'cover and the device employed to secure the folded laps at the corners. Fig. '8 represents a section of the box and cover,in.which are shown a modified formof securing-the metalplateswhen heavy material is use.d,-also the'mode. of securin g thefire-proof lining by the use of metallic flanges or angleirons sustained in place by bolts or appropriate rsecuriing devices. v v

The object of my inventionis to furnish a substan' tial fire-proof box or chest for the holding-of papers andother "valuables,made from metalrplates fastened andconnected in a new and improved manner, and combined with a liningofindestructible fiber incased in carbonizable fiber, making alight, strong, and convenient lire-proof box or chest, and which can be made at a much lesscost for material and labor than the ordinary boxes or chests used for a similar purpose.

This invention is intimately connected with my former inventions upon analogous subjects, particularly to my improvement in fireproof material for which my application for Letters Patent of the United States was filed zl ebruary 23, 1882. The fire-proof material' -..therein described I intend to use in this improved box which forms the subject of this present invention. Of course a lining could be used other than the one described in my ap-' plication just referred to. Forinstan co, the fireproof lining described in the Fowler magnesocalcite patent, or other similar non heat-conducting fire-proof lining, could be used.

By reference to Fig. 1, A is the box; A, the front sheet; A the end sheet. E is the cover; I), a rim which sets over the top edge, e, of the box and rests upon the molding b. The metal plates of the box are turned in at rightangles at the top edge to give additional strength, prevent warping, and to protect the fire-proof .lining. This turned or folded upper edge or top is shown by c c, and is an important part of my present invention. Theedge ofthe cover b, which sets over the box at 0, also tends to prevent the warping and twisting of the ends or sides by the heat, and the molding or bead sets over. Where light plates are used this form is quite important. The edges or corners of the sheet E composing the cover-top are held together by the small pieces d d, which are slipped into slots left for the purpose and fastened in place by rivets, (represented byX X.) The part aof the cover is fastened to the top. by rivets and'cement or other suitable means, and when the lid is closed fits closely inside the top of the chest, (represented by a.)

'By referring to Fig. 6 a sheet of the metal will'be seen, in which E is the sheet itself. b b b are edge flaps, which lap over and form the joints and edge of the cover, as shown in b*, Fig. 1. d is a piece which comes out from the waste metal. The plate is cut into the form shown in Fig. 6, and after the plate E is folded, as shown in Fig. 7, the parts or flaps b b b take the position as therein shown, and the holes or slits (represented by d in Fig. 6) come togetherin the corner of the plate, and the piece d is hen-t to an angle of forty-five degrees and slipped into the hole or slit (1 as shown in Fig. 7.

upon which the top rests protects the top as it The dotted lines in Fig. 7 indicate the way the box-cover is constructed and the manner of introducing the corner-stays d, as already described. The piece d is secured'i'n its place by a bolt or rivet,X. (Shown alsointhe cover of the box, Fig. 1, X.)

The box proper is formed'of five plates of metal-A A the sides, A A the ends, and A the bottom plate. The side and end plates to are united at the corners bylap-joints, and thebottom sheet, A, being folded in its edges, is also lap-jointed to the side and end sheets, as shown at Fig. 2. In order tosqnare out the corner upon the outside, the corner-piece 0, Fig. 3, is soldered or riveted on. This also finishes the box and makes the symmetricallyformed panels, as shown in Fig. 1. The box and cover-plates are further strengthened by a small angle-iron placed in the corner of the edge of the plates, Fig. 1, b b c c, and this iron or brace is held in place by rivets or bolts X X X X. One of the small angle-irons is shown in each corner edge of the cover, and indicated ;by.d:d. When heavier plates of metal ai'e'used in constructing the box, the

'warpin g or twisting can be prevented by placing braces or ironsinside, near the top, extending all around thebox, and which will be understood by reference to'Fig. 8, hereinafter more particularly explained.

In Fig. 8 I show a section of a moditieclconstrnctiou of the cover and box in which the angle-irons e e e e are represented, and which are so connected with the outside metal plates 3 5 as to make a. very strongand' substantial box,

, .but still of exceedingly light weight. The outside frame-plates of the box are bolted to the inside-work, as shown'in Fig. 8. The bolts or large rivets are represented by mm. The space o allowed'for expansion is also shown, and is in- (limited by h h... The angle-irons or metallic flanges e e e 6 protect the ends of the combinedfire-pioof material F D. A metal piece, 7c, Fig. 8, is placed .beneath the edge of the 5 cover-plate E, and which also extends under the edge of angle-iron e e andtends to support it. The piece. It is secured to plate E by belt or rivet n, spacebeing left for expansion, as

already described.

so The front of a the plate to the box is represented by A. upon the top of which rests the cover-plate E. This construction is used with heavy plates and when the cover to the box does not overlap, as shown in Fig. 1, but sim- V ply rests on the top of the box, as shown in the section, Fig. 8.

, The form of the non-carbonizable or tire-proof material is shown in Fig. 5. It will be seen that it is made to conform to the shape of the on metal plates out of which the box is constructed, the holes or slits d being made in such a position that in folding, when placed between the sheets of the carbonizahle fiber, a tight joint will be formed without creasing or overlapping, and the sheets of carbonizahle fiber thus inclosing the non-carbonizable fire-proof 7 material thus nicely fit inside the outside metal plates.

The manner of wrapping the carbonizable fiber about the non-carbonizable fire-proof material is shown in Fig.4, and the position of both as laid in the metal sheets of the box is fully shown in, the sections, Figs. 2, 3, and 8,

% cal construction of the top edge of the box and lot the cover to correspond withwthe varying thickness of metal plates used.

In either case the box can he made safe, strong, and light, of elegant appearance, and at u very moderate cost.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent-of the'United States, is-

1. In a fire-proof box,,.the plat-es A .A -A united by lap-joints, andthe plate E, 1'nrming the cover E, combined with sheets of fire-proof material D F, substantially as and for the purposes set forth. p

2. A fire-proof box formed of platesA A A, with bead b, a cover, E having an overlapping edge formed of the plate E, with laps b b and openings or slits d", tolded, joined, and secured at the corners of the plate by the pieces d d andvthe rivetsX X, alt. combined with a fire-proof lining, as and for the purposes set .forth. Y

3. In a fire-proof'box, the plates A A, with top edges, 00, formed by the folding or'lapping of the upper edge of the plates, the bead b, and corner-pieceso 0, all combined substantially as and for the purposesset-forth.v

4. In a fire-proof box, a cover formed of the metal plate E, arranged by doubling the edge of the, metal sheet by foldsbb to. make the overlapping edge b and secured in position by the insertion of bent pieces 01' d. and the rivets X X, all substantially as and for the purposes specified.

JOHN H. NOLAN. Witnesses:

F. F. RAYMOND, 2d, Bownom S. PARKER.

IIC

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