US1090593A - Method of forming boxes and tubes. - Google Patents

Description

- a ai /m6 R. -s. BOLGER. METHOD OF FORMING BOXES AND TUBES.

APPLICATION FILED FEB.1,1912. r Patented Mar. 17, 19M

8 SHEETS-SHEET 1.

WITNESSES INVENTOR R. S. BOLGER, METHOD OF FORMING BOXES AND TUBES.

I APPLIUATION FILED FEB. 1,1912 1 ,.090,593. Patented Mar. 17,1914.

, 3 SHBETBBHEET 3.

5OURCE OF ADHESIVE WIT/M85958 zw aflww 7%, 714 44% ROBERT s. IBOLG-ER, on NEW YORK,

N. Y., Ass'IGNoR or ONE-HALF T0 CHARLES LEFFLER 8: COMPANY, 'A CORPORATION OF NEW YORK.

METHOD. OF FORMING BOXES AND TUBES.

Specification of Letters Patent. Pat t 7, 1914, Application filed February 1, 1912. Serial No. 674,697.

To all whom it may concern Be it known that I, ROBERT S. BOLGER, a citizen of the United States, residing at the city of New York, in the borough of Queens and State of New York, have invented certainnew and useful Improvements in Met-hods of Forming Boxes and'Tubes, of which the following is a fulhclear, and exact description.

This invention relates to a novel method of forming paper andcardboard tubing or boxes such as are used for example for the preservation and shipmentof incandescent mantles, bottles, and like fragile articles.

Heretofore it has been customary to wrap paper, fiber, cardboard, ,strawboard, or like material, upon mandrels in forming mailing v tubes or boxes, the paper being fed to the mandrel in the form of-a strip. Thereafter for the purpose of stiffening the tube or box and also for the purpose of providing cushioned walls for the same, it has been customary to insert longitudinally a cylinder of corrugated paper or cardboard; the corrugations extending usually longitudinally of the cylindrical box or tube. This method of constructing devices of this character involves several steps and consumes time and labor which it is the purpose of my present invention to obviate. I furthermore aim to improve the quality of the product, both in strength and appearance. These and other ob'ects'of my invention will .be hereinafter referred to and the novel method and means whereby they may be attained will be more particularly set forth in the claims appended hereto.

I am aware that my novel process may be .efi'ectuated in a variety of ways without departing Ifromthespirit of'my invention and that the product may be modified to a can siderable extent within the purview of the said inventiomand hence desire to be limited views, I have exemplifie claims.

only by. the scopeof the said appended In the drawin which formapart hereof and in which HE: reference characters designate like parts throughout the .several certain preferred forms of product and a preferred method of Referring to thedrawingsiz 1 is a perspective view of a double-back cylindrical which en ages box constructed in accordance with the principles of my invention, port-ions of the structure being broken away for the purposes of lllustration.

Fig. 2 is a vertical median section of .the device shown in Fig. 1. Fi

Fig. 1, the section being taken on line VV of Fig. 2. Fig. 6 is a similar section taken on line VIVI of Fig. 3. Fig. 7 is a blank or web from which is made the body of the double-back box shown in Fig. 1. Fig. 8 is an edge view of said blank. Fig. 9 is a blank or web for the single-back tube shown in Fig. 3. Fig. 10 is an edge view of said blanl. Fig. 11 is a blank for a double-back tube. Fig. 12 is an edge view of the same. Fig. 13 is a perspective view of the said double-back tube. Fig. 141's a vertical median section ofthe same. Fig. 15 illustrates a step in the process of forming a box or tube. Fig. 16 illustrates a second step in the said process. Fig. 17 illustrates the step of completing a single-back box or tube, and Fig. 18 illustrates a portion of the method of making a double-back box or tube.

Referring first to Figs. 1, 2 and 5, it will be observed that the box therein shown comprises preferably a plurality. of outer layers of non-corrugated material. Within these outer layers is an intermediate cylindrical wrapping 2 which is' corrugated longitudinally in the direction of the axis of the box and within this corrugated wrapping is a layer 3 of preferably plain -or non-corrugated strip material. The corrugated and inner plain portions respectively designated 2 and 3 are, in this particular form of the device, of somewhat less height than the plain outer-portion or layers 1, so

that as seen in Figs. 1 and 2 space is afforded at the bottom of the box for the insertion of an inverted cup-shaped bottom 4 the plain cylindrical inner wall of .t e outer layer 1. provided a space A due to the fact that the upper edge of the corrugated and interior There is also portions do not reach the upper edge of the layers 1, which permits of inserting'a droplight Welsbach mantle into the box and supporting the same upon the upper edge of the inner wrappin 3. The usual cap 5 may of course be app led to the tube .of the box to afford a closure therefor, but since this cap forms no part of the present in vention it has been merely indicated in dotted lines in Fig. 2.

The tube shown in Figs. 3, 4 and 6 is of.

very similar construction to the box shown in Fig. 1, save that in this instance there is no bottom 4 nor inner wrapping 3. The

- outer layers 1, of which there are two in a box or tube is formed from a single strip.-

Referring to Figs. 7 and 8, I have shown a blank from which the body of the box may be wrapped. This blank is in the form of a single, somewhat elongated strip and by reason of-the product sought in this, particular instance, to wit, a box for incandescent mantles, thls strip is made narrower along a portion of its length, the wide portion,

designated 1, corresponding to the material designated 1 in Figs. 1 and 2, while the corrugated and somewhat narrower portion 2 corresponds tothe corrugated portion 2 in said first mentioned figures; while similarly the narrow plain portion 3 corresponds to the inner lining of the box. The blank from which the tube shown in Figs. 3 and 4 is formed, is shown in Figs.,9 and 10. The I blank is, in this instance, of uniform width,

corresponding with the uniform width of the several layers, corrugated and plain, in

the said tube. .Hereagain the plain outer. wall-forming portion has been desi ated 1 and the corrugated portion 2. If it is desired to form a double-blank mailing tube such as'is shown in Figs. 13 and 14, the

blankwill assume the-form shown in Figs. 11 and 12 Herein again the outer wrappings have been designated 1, the corru-' gated section 2, and the inner plain layer or lining 3'. Since all parts of the body of the box or tube, as the case may be, are inte ally united or connected together, it is possible-to wrap them around a mandrel, one on top of the other, and thus assemble said body in practically one operation. While the corrugated portion of. the strip may be formed in the b ank and before attempting any wrapp ng operation of the same I preferto form this corrugated section durmg the procedure of wrapping the strip upon the mandrel. As-shown in Fig.

35. 15, two rolls, respectively designated 10 and ing the present process, since it is obvious that it may be efiected manually, although.

in practice of course a suitable machine wlll be provided for carrying it out.

As shown in said Fi 15 the rolls have I been moved substantia y into engagement with each other so as to firmly press the strip,'broadly designated 13, therebetween and the said rolls'have been in this case rotated through almostv 360, thereby corrugatin'g a ortion of thesaid strip 13 in the manner s own. -While the rolls are bein rotated, adhesive material may be applied to the outer surface of the corrugated portion, this material being supplied from some suitable source of adhesive, as forexample the paste brush '14. It it be desired to form a single-corrugated layer or wrapping, the

rolls will be stopped wlienrthev-have been advanced butslightly farther than the position shown in Fig. 15. Thereafter one or the other of these rolls may be moved away fromits engagement'with the co-acting roll, as shown in Fig. 16, wherein the roll marked 11 has been dropped out of engagement with the strip 13. T ereafter the roll 10 is ro tated in the same direction in which it had previously been rotated, while the paste or other adhesive is applied to the outer surface of the strip 13 .s'o that the plain or-non-cor-. rugated portion. of the strip which is wrapped around the corrugated section, which we may here identify, as 2',=forms the non-corrugated or outer layers 1, previously referred to. During this operation pressure may be applied to the outer surface of the plain section ofthe strip as by. means ofa pressure'roll 15 or in any other suitable manner, to insure proper engagement between-theseveral contacting parts. When the strip 13 has been almost completely wound into position, the paste brush, if this be the [source of adhesive employed,

may be removed, as shown in Fig. 17, and

the end of the strip may thenbe rolled by .means of the pressure-roll 15 around into firm engagement with the adjacent layer or wall 1, completing the tube. .The. tube is then removed from the mandrel, and .pre-

sents substantially the appearance of that shown'in Inshapm a box such as 4 is shown in ig. 1, the proce ure is the same,

save that ,roll '11 is not drawn up into engagement with the roll'10 untilafter 'a plain section 3 ofthe body has been wrapped around the mandrel. If it be desired to have but asingle layer 3; after the mandrel has 11, are adapted for engagement with" each been .rotate'd through asingle turn,the corthe manner shown in Fig. -18. Herein-the adhesive is applied 'as by means of a paste brush 14 to that portion ofthe strip between the mandrel 16 and the roll -10. The roll 10 in this arrangement is rotated by means of the handle 12 and the lower roll 11 is slidably journaled as at 17, a'lever 18.

serving to affect the upwar displacement of said lower roll when desired, 'the roll fallin by gravity when the 'hand is remove from the lever 18. a

It is obvious ofcourse that the box or tube may have the cushioning or cellular portion thereof formed other than corrugated, and I hence do not desire to be limited to such particular for-In or disposition of the mate rial of which such sect-ion IS composed. I

have hence applied the term waved to this surface, the significance of theterm being that portions of said surface are struck uplaterally so as to form aseries of cush ions, no matter how disposed. v

Having described my invention, I claim: 1. The method of forming bodies for .boxes, tubes and the likeconsisting in pressing lateralprojections into limited 1 ortions of a continuous, strip of sheet material leav- 'ing the remainder of the stri plain and then Wrapping orrolling sai strip upon itself to form at least one complete layer of plain material and at least one complete layer ofthe projection bearinwlaterial sub-' stanti'ally as described.

2. The method of forming bodies for boxes, tubes and the like, conslsting in cor-- rugatin the middle portion of a continuous strip 0 material leaving the end portions plain, then wrapping or rolling the strip substantially as described. a

a In witness whereof, I subscrlbe my signature, in the presence of two witnesses.

I v ROBERT S. BOLGER.

Witnesses:

WALDO M. CHABIN,

I JAMES DANTQNIO.

said cushions may be upon itself thereby superposing alternate layers of plain and corrugated. material,

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