US1058777A - Shipping-box. - Google Patents

Description

0. MITCHELL.

SHIPPING BOX. LPPLIOATION FILED snPT.21,1911.

1,058,777. Patented Apr. 15, 1913.

r MMWQICMMMr/aq COLUMBIA PLANOURAPH COUWAIHINGTON. D. C.

UNITED sTATEs PATENT oEEICE.

OLIVER nITCHEIiI., or BOSTON, MASSACHUSETTS, AssIeNoR "ro THE IIINDE a DAUCH rArEn COMPANY, or SANDUSKY, oIIIo, A CORPORATION or oHIo.

SHIPPING-Box.

Specification of Letters Patent.

Patented Apr. 15, 1913.

To all whom it may concern Be it known that I, OLIVER MITCHELL, a Citizen of the United States, residing at Boston, in the county of Suifolk and State of Massachusetts, have invented new and useful Improvements in Shipping-Boxes, of which the following is a specification.

My invention relates to shipping boxes made from three separate sections, the material of which is what is known in the paper box trade as cellular board which is a material made by corrugating a sheet of Manila or other suitable board or paper and pasting a sheet of plain paper upon one or both faces of the corrugated sheet to hold the corrugations in place. Such material is strong and stiI against pressure applied to t-he ends of the eorrugations or upon the face of the material across the corrugations which in eect, owing to their shape, form semi-cylindrical struts or girders to resist pressure, so that the material has to be crushed or torn before it will yield.-

My invention consists in so disposing the corrugations of the material o f which my new box is made, that 'the maximum strength 0f the box is manifested and Concentrated in opposition to the stress which it will be called upon t0 endure in use'.

In the drawings: Figure l is a p erspec` tive view of the box ready to be assembled by closing down the cover flap C and pushing the tube A over the parts B, C. Figs. 2, 3 and 4 show the three strips of which the box is made up, upon a reduced scale, these strips being broken away in part to show the direction in which the corrugations of 4the material run.

In the drawings I have Shown a box of rectangular Shape and also the parts or Strips from which the box is made up, but it is obvious that the size and proportions of such a box and its parts will be varied in accordance with the uses for which it is de` signed.

The box is made from three strips of cellular material, each of which is creased and folded to extend to four sides of the completed rectangular box, two of said strips being preferably joined at their ends by gummed tape in the well-known manner to form open-ended rectangular tubes and the third strip left in strip form. One of these strips 1s creased for folding along the direction of the corrugations which extend across the length of the strip, the other two strips are creased for folding across the corrugations which run lengthwise of the strip. The eifect of this is that when the three parts are assembled, each part crossing the other two parts at right angles, as shown in the drawings, to form a six-Sided doubled wall box, it will be found that each of four opposite sides is composed of two plies of material in which the corrugations are par` allel and ytwo opposite sides which may be considered the top and bottom will have the corrugations of the two plies of material crossed. This method of cutting and creasing the several strips thus produces a box, in which the corrugations are disposed in the completed box in the manner best adapted to give maximum resistance to pressing strains in one direction and which are especially adapted to use in shipping articles such as eggs, for example, which are boxed in small quantities, but shipped in quantity, one box piled upon the other. In such a case the boxes are shipped with the four sides, in which the co-rrugations of the two plies are parallel, in vertical position, with the result that the maximum resistance to superimposed weight is provided with the bes-t disposition also of the top and bottom plies to give cushioning effect by the crossing of their corrugations and resistance to side pressure from any direction.

The outer tube is marked A, its four divisions being marked respectively, 1, 2, 3 and ai. The inner tube is marked B, its four divisions being marked respectively, l, 2, 3 and A. The strip is marked C, its four di visions being marked respectively, l, 2, 3 and Il. The crease or hinge lines are marked X and the corrugations X2. The ends of the two tube strips A, B, are secured to gether by gummed tape, X, to form tubes and these tubes may be pressed iiat for storage or shipping in knockdown form, the parts of the box thus iiattened forming a very compact package. "When the box is assembled as indicated in the drawing the Sections G2, C4 will be adjacent to sections B3, B1, the eorrugations in the adjacent sections being parallel to one another, while the sections B2, B4 will be adjacent to sections A2, A4, the corrugations in adjacent sections being parallel to one another so that when the box is filled and shipped the four sides of the box will each present two plies of material each ply having its corrugations vertically disposed. The top and bottom respectively of the assembled box will be made up of sections A1, C1,-A3, C3, the corrugations in these plies crossing at right angles to give the maximum cushioning effect and resistance to side pressure from any direction.

I have described the box as made of three strips, two of which have their ends secured together, but it is obvious that this is not essential as a useful package would be produced if the parts were assembled in crossed relation and then secured by stout twine or paper, or if the outer strip were secured as to its ends by gummed tape or otherwise.

l. A box comprising three strips of cellular board of uniform Width throughout their lengths each being folded to provide three integral one-piece strips meeting at the edges of the sides of the box, securing means for the ends of two of the strips, said folded strips being telescoped to provide a box with six sides of double thickness, the strip with free ends being innermost and having its free side locked in position by the outer folded strip.

2. A box comprising a strip of cellular board formed to provide an integral onepiece top, a one-piece bottom and one-piece sides, the strip having its ends free and meeting at the abutting edges of the top and the side of the box a second cellular board strip folded about the first strip to provide integral one-piece sides and ends and admitting of the upward swinging of said top, the ends of said second strip meeting at the abutting edges of one of the sides and one of the ends and being permanently secured together, and a. third strip folded about said first and second strips to provide an outer one-piece top and a one-piece bottom, and outer one-piece ends, the extremities of the third strip meeting at the abutting edges of one of the ends and the top and being permanently secured together whereby the outer top holds said first top closed.

3. A box comprising a strip of cellular board folded to provide an integral top, bottom and sides and having its ends meeting at the top edge of the box, a second cellular board strip folded about the first strip to provide integral sides and ends and admitting of the upward swinging of said top, the ends of said second strip being permanently secured together, and a third strip folded about the first and second strips to provide an outer top and bottom and outer ends, the extremities of the third strip being permanently secured together whereby the outer top locks said first top closed.

In testimony whereof, I have hereunto subscribed my name this 19th day of September, 1911.

OLIVER MITCHELL.

Witnesses HAROLD EvERET'r Unsnrrfr, ANNA B. LINDSAY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. i Washington, D. C.

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