US1603547A - Method of making paper boxes - Google Patents

Description

Oct. 19 1926.

L. E. LA BOMBARD ET AL METHOD OF MAKING PAPER BOXES Filed Nov. 1925 //v TURSL zm/vf. A A 547mm HAL /;ZL w/v hi .5705 50 THAN 5 Fig.4.

Patented Oct. 19, 1926.

UNITED STATES 1,603,547 PATENT OFFICE.

LEON E. LA BOMBARD AND MELVIN SIDEBOTI-IAM, OF CHELSEA, MASSACHUSETTS,

ASSIGNORS T0 SPECIALTY AUTOMATIC MACHINE COMPANY, OFCHELSEA, MASSA- CHUSETTS, A CORPORATION OF MASSACHUSETTS. I

METHOD OF MAKING PAPER BOXES.

Application filed November 23, 1925. Seria1 No. 70,774.

overlapping portions or scctions together.

And it has been customary to so make boxes which are used to contain eggs.

Owing to the fact that the glued parts are liable to separate when subjected to a damp atmosphere, as when boxes of eggs are in refrigerators, it is desirable to employ metallic fastenings such as wire staples instead of glue. i

It has been proposed to fold the box blanks to the approximate form which they will have when the boxes are completed, then partly or wholly set them up, then drive staples through those overlapping sections which require to be connected, and

then collapse the boxes to flat condition for storage or shipment. This however is a slow operation and is difiicult to perform by machinery. So far as we are aware metallic fastenings have not heretofore been employed to unite overlapped portions during the operation of folding the blanks or after the boxes are completed and while they are in flat folded condition. This because there are other overlapping portions which must not be connected together, with those which are connected together.

The object of our invention is to provide, in an economical manner, paper boxes having metallic fastenings instead of adhesive,-

and we accomplish this object by successfully applying the fastenings after and while the blanks are completely folded to their final flat form for shipment, without having to partly unfold the blanks to get access to those parts which are to be socured together. In attaining this object we provide the flat blanks with small holes or openings in certain portions thereof which are never secured together, then folding the blanks in such manner that the holes register with each other, and then applying metallic fastenings through those portions which have no holes, in the locations exposed by the said holes.

The folding can be done manually but preferably we employ a machine such as illustrated in Letters Patent No. 1,488,756, is-

sued to us April 1, 1924, Figures 14 to 20 of which illustrate the type of glued box here inbefore referred to.

The prez'ent invention consists in the method of making the-box, substantially as hereinafter described and claimed.

Of the accompanying drawings:

- Figure 1- is a plan view of one form of blank utilized in carrying out our inven tion.

Figures 2 and 3 are opposite plan views of one end portion of'a similar blank which has been folded flat and the necessary sections secured together by staples.

Figure 4 represents a section on line 4-4 of Figure Figure 5 is a perspective view of one end of the box in nearly set up condition.

' Similar reference characters indicate Sim-- ilar parts or features in all of the views.

Referring first to Figure 1, the blank is cut and creased to provide a bottom section a, front and rear wall sections 6, c, a cover section (1 having a tucking flap e, and end wall sections 7, g, h. The blank is folded in the manner illustrated by the other figures of the drawing, detailed description of the order in whichthe different sections are folded being unnecessary because said order forms no part of ourpresent invention and is, moreover, well-known.

An important feature of the invention is that holes or slots in are provided in certain portions'of the blank. These are-conveniently. made when the blank is died out. They are in such locations of those sections which, when the blank is folded to box form,

are not themselves secured to ether butoverlap other intermediate sections which are secured together, in order to expose to the action of the tool or implement which applies staples y those t n-perforated intermediate sections which areto be secured together. In the illustrated embodiment of the" invention, the holes w are centrally located in the ends of the bottom section a, and in such locations of the sections a and g that when the blank is folded the holes will be in alinement, or will register, as illustrated by Figures 2, 3 and 4-. The other sections 7 and 7:. however, and a portion of section g, are then between or are over lapped by the portions having the holes, and.

a staple-applying element and a clinching element are readily adapted to fasten together those three (Fig. 4). c

From the above description and the drawings, it will be understood that the blank, having holes or slots such as illustrated, is so folded that the holes or slots register to permit a stapling tool to get access to intermediate sections to staple them together while the box is in flat folded condition.

lVh'en the box is set up for use (Fig. 5) it exposes sinallholes at the ends of the bottom a. and the ends of the rear Wall section 0, but in practice they are so small as not to interfere with the utility of the boxes for many purposes such as containing eggs. The holes in the corner sections 9 are 1nternally covered by the sections 7'.

intermediate sections Having now described our invention, we claim The method of making a flat folded box Without the employment of adhesive, consisting in forming holes in such locations of some portions of the blankthat the holes will be in alineinent when the blank is folded, then folding, the blank to collapsed condition with other non-apertured portions thereof located between those portions having holes, and then utilizing said holes to gain access to the non-apertured portions to unite the latter by non-adhesive fastenlngs.

In testimony whereof We have affixed our signatures.

' LEON E. LA BOMBARD.

MELVIN H. SIDEBOTHAM.

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