US426231A - Knockdown box - Google Patents

Description

(N0 Model.) Q

0. F. BOSWORTH.

KNOGKDOWN BOX.

No. 426,231. Patented Apr. 22, 1890.

UNITED STATES PATENT OFFICE.

CHARLES F. BOSIVORTH, OF MILFORD, CONNECTICUT.

KNOCKDOWN BOX.

SPECIFICATION forming part of Letters Patent No. 426,231, dated April 22, 1890.

Application filed February 24, 1890. Serial No. 341,434;- (No model.)

To all whom it may concern:

Be it known that I, CHARLES F. BOSWORTH, of Milford, in the county of New Haven and State of Connecticut, have invented new Improvements in Knockdown Boxes; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a perspective view of the box complete; Fig. 2, a top view, the cover being removed; Fig. 3, a portion of one side, end, and key, showing the parts detached; Fig. 4:, a transverse section on line a: or of Fig. 1; Fig. 5, a perspective view of the key detached; Fig. 6, a perspective view of the blank for the key, illustrating the method of forming the tongues; Fi 7, a modification in the formation of the key.

This invention relates to an improvement in the construction of boxes such as used for packing-cases, and in which the parts composing the box are detachably connected, so that the box when not required for use may be packed in a space substantially equal only to the bulk of the material of which the box is composed, this packing being convenient for storage as well as for transportation of the boxes, the object of theinvention being a simple and cheap construction, which will readily permit the manufacture of the box and shipment from the manufactory to the distant points in a compact shape, as also permit the storage of the boxes within asmall space; and the invention consists in the construction as hereinafter described, and particularly recited in the claim.

The boxes are composed of two sides .A B, two ends CD, a bottom E, and a cover F, the parts being made of a size, shape, and thickness corresponding to the purpose for which the boxes are designed to be used.

The angles between the sides and ends are mitered, as at a, Figs. 2 and 3, and as near as may be to the mitered edges of the sides and ends dovetail or undercut grooves b are formed parallel with the said edges and so that when the two edges are set together these two grooves will stand at substantially right angles to each other and as seen in Fig. 2. These grooves are cut alike at all the edges.

A key G is provided for each corner of the box, this key having upon its edges projecting tongues (Z (Z, as seen in Figs. 3 and 5, corresponding to the two grooves in the parts to be connected. The key is best made of triangular shape, so as to present in transverse section a right-angle triangle, the right angle being the outer edge and corresponding to the angle between the two parts to be connected. Then upon this right-angle edge a groove cis cut, as seen in Fig. 5, this groove presenting parallel sides and so as to form the tongues (Z d at right angles to each other.

The sides and ends of the box to be united are set together, as in Fig. 2, and then the tongues introduced and pressed down into the respective grooves, as seen in Fig. 2,which interlocks the sides and ends, so as to make them inseparable until the tongues are removed by the Withdrawal from the said grooves.

The bottom E and the corresponding sur face of the sides and ends are tongued and grooved, as at f, Fig. 4-. The sides and ends are set onto the bottom, the tongues and grooves interlocking, so that when the keys G are set in place the sides and ends firmly support the bottom Without other connection than that produced by the tongues and grooves. The one end (or may be one side) is made of less height than the sides, as seen in Fig. 1, and the sides and their ends and the corresponding edges of the cover are tongued and grooved, so that the cover may slide into place over the end D, as seen in Figs. land 4. The cover may then be secured by a nail or screw into the end G, as at g, Fig. 1.

The box being set up, and before the cover is applied, it is filled like otherboxes or cases, the cover applied and secured, when the case is ready for shipment, and after the goods are removed the keys may be drawn out and the parts readily separated, and may be packed into a space equal only to the bulk of the ma terial itself; This packing is convenient for shipment from the manufactory of the boxes,

for storage of the boxes, or for the return of the boxes after having carried their contents to their destination.

The box is of great strength and durability, so as to withstand many shipments.

The keys may be made of any suitable material, preferably hard wood or metal.

Instead of cutting the groove @into thekey, as I have described, the key may be formed, as seen in Fig. 7, by cutting a rabbet in each side, as at h h, which will produce the same tongues 01 cl, as first described, and the key will fit close into the angle of the box.

\Vhile I prefer to apply the cover as I have described, so that it may be interlocked with the sides and ends, the cover may be applied by screwing it to the upper edge of the sides and ends or secured in any of the known methods for securing the cover.

I claim- I The herein-described knockdown box, composed of sides and ends, the meeting edges of said sides and ends mitered and constructed with undercut grooves near each of said mitered edges and parallel therewith, combined with keys constructed with tongues corresponding to the two adjacent grooves at the respective angles of the boxes, the tongues of said key adapted to set into said grooves in the parts of the box and interlock therewith, with a bottom the edges of which and the corresponding surface of the box are tongued and grooved, so that said bottom may interlock with said sides and ends, substantially as described. 1

CHARLES E. BOSYVORTH.

WVitnesses:

LILLIAN D. KELSEY, FRED C. EARLE.

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