US1779578A - Method of forming paper rolls - Google Patents

Description

Oct. 28, 1930. c. B. ANDERSEN 1,779,578

METHOD OF FORMING PAPER ROLLS Filed Oct. 24, 1929 v 2 Sheets-Sheet 1 illll 4 INVENTOR.

Wu 6 W 777M, v-m defl A TTORNEYS Oct. 28, 1930. Q B ANDERSEN 1,779,578

METHOD OF FORMING PAPER ROLLS Filed Oct. 24, 1929 2 Sheets-Sheet 2 5 IN VEN TOR.

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A TTORNEYS Patented Oct. 28, 1930 PATENT OFFICE CLARENCE B. ANDERSEN, OF MENASHA, WISCONSIN METHOD OF FORMING PAPER ROLLS Application filed October 24, 1929. Serial No. 402,142.

This invention relates to improvements in the method of forming paper rolls.

In the manufacture of paper rolls, the individual rolls are formed by cutting longi-- tudinally paper unwound from a large roll [0 her of yards of paper.

It has been found desirable in paper rolls to provide each roll with a tab or strip secured between the outer convolution of the roll and the next adjacent convolution to facilitate freeing the glued outer convolution when the roll is to be used. Due to the fact that the paper rolls, as above mentioned, are formed in a plural number, being cut and wound from a larger roll it has heretofore been difficult to expeditiously and inexpensively insert the tabs or strips in a manner so that the same will function correctly when the completed rolls are taken from the winding machine and are severed.

It is, therefore, the primary object of the present invention to provide an improved method for the forming of paper rolls, having particular reference to the insertion of' tabs or insert strips in an economical and eflicient manner and adaptable to machines for cutting and winding simultaneously a plurality of rolls.

The improved method also makes it possible to insert the tabs in the rolls as they are being wound very quickly and permitting the easy separation of the rolls, and providing each roll, whenseparated, from the ad joining rolls, with a projecting or offset portion of the tab or insert for manual manipulation when the roll is to be opened or the outer convolution freed.

A further object of the invention is to provide an improved method of forming paper rolls with ofi'set insert tabs which adapts itself to the practical manufacture of paper rolls and which will not add appreciably to the manufacturing cost of the rolls.

.A further object of the invention is to provide an improved method of forming paper rolls which is simple, is expeditious and is easily carried on by unskilled workmen, and is well adapted for the purposes described.

With the above and other objects in view the invention consists of the improved method of forming paper rolls with individual ofi'set insert tabs, and its parts and steps as set forth in the claims, thereof.

In the accompanying drawings in which the same reference characters indicate the same parts in all of the views:

Fig. 1 is a side view of mechanism for cutting and rolling a plural number of narrow paper rolls from a large roll;

Fig. 2 is a plan view thereof;

Fig. 3 is a detail sectional view taken on line'33 of Fig. 1;

Fig. 4 is a detail sectional view taken on line 4.-4 of Fig. 2;

Fig. 5 is a detail plan view of an elongated perforated strip such as is used in formin the inserts or tabs for a plurality of rolls;

Fig. 6 is a view illustrating the manner in which the perforated strip shown in Fig. 5 has its adhesive surface applied to a device ior moistening portions of the adhesive surace;

Fig. 7 is an enlarged fragmentary plan view of the roll cutting and winding mechanism showing the manner in which the adhesive strip shown inFigs. 5 and 6 is applied to the cut paper from the large roll on the mechanism, so as to be wound .into the rolls between the two outermost convolutions thereof and caused to adhere therein, with the portion of the strip for each roll having an offset portion, which oflset portions form the projecting tabs when the rolls are finally separated;

Fig. 8 is a detail sectional view taken on line 88 of Fig. 7

Fig. 9 is a detail perspective view showing the spindle removed from the cutting and winding mechanism and having thereon a plurality of completed wound rolls provided with insert strips; and

Fig. 10 is an enlarged detail perspective view of a completed paper roll formed with an insert tab or strip.

Referring now more particularly to the and all equivalents are journaled the end portions of a shaft 13 on which is mounted, on suitable plugs 14, a

large roll of paper 15. The paper from the large roll 15 is adapted to be unwound and it is stretched around and over a guide roller 16 which is mounted at its end portions in arms 17 extending angularly from a pair of spaced apart supports 17. An elongated spindle 18 has its end portions removably mounted in bearing portions formed at the upper ends of the spaced apart supports 17 and one end portion of the spindle 18 1s positively engaged by a hub-like rotative member 19 which carries a sprocket wheel 20 and is driven through a chain 21 by an electric motor 22. The spindle 18 is adapted to contain thereon a plurality of individual spools 23, and the width of each spoolis the ultimate width of each paper roll being cut and Wound from the large roll 15.

There is also extended between a pair of.

projecting arms 17 on the supports 17 a transverse bar bearing a plurality of spaced apart upwardly projecting knives 2st. As clearly shown in the drawings, in the tormation of a plurality of individual narrow rolls from a large roll the paper 15 from the large roll is extended around the guide roller 16 and is wound onto the spools 23 on the spindle 18, the spindle 18 being driven so as to wind the paper thereon as it isbeing unwound from the large roll 15. While the paper is being wound onto the spools on the spindle 18 the stretch thereof between the guide roller 16 andtthe spools 23 1s taut and moves against the various spaced apart knives 24 which knives are spaced apart the width of the spools on the spindle and cause the moving paper to be cut into a plurality of strips just prior to reaching the spools and individual roll or spoo therefore the cut strips are wound on the spools forming individual narrow rolls 25.

The operator of the machine Wlll determine when a sufiicient amount of paper has been wound on the individual spools 23 and will then stop the machine. At this point it becomes necessary for the operator to 1nsert an elongated strip which will ultimately provide the insert tabs for the individual paper rolls.

An insert strip such as is used is shown in detail in Fig. 5 and is designated by the numeral 26. Said insert strip in practice is a length of paper tape, the length of which corresponds to the total width of all of the rolls of the spindle and said strip 26 is provided with a plurality of spaced apart transverse rows of perforations 27, which rows of perforations are spaced apart the width of each The perforated strip has one. surface coated with an adhesive medium and for the purpose of moistening areas of said adhesive coating so that the strip 26 will adhere to the paper of the rolls when applied, said strip is placed on a device shown in Fig. 6 with its adhesive surface lowermost. The device shown in Fig. 6 includes an elongated base 28 on which are mounted a plurality of spaced apart sponges 29, which sponges are moistened. As the sponges are spaced apart approximately the distance between the mid-portions of the areas of the strip 26 separated by the lines of perforations, only the mid-portion of each section of the strip 26 would be moistened for adhering purposes. I

The strip 26, when prepared as described, is next placed on the stretch of paper in the stopped machine slightl outwardly of the rolls, as shown in Figs. 7 and 8. Care must be taken in the lengthwise disposition of the strip 26 and it is important that it be placed so that one end thereof projects outwardly of the side edge of the sheet or stretch of paper and this will cause each of the rows of perforations 27 to be offset slightly from the lines of cut of the stretch of paper designated 30 in Fig. 7. The operator of the machine will then run a brush of glue over the uppermost surface of the stretch of paper between the guide roller 16 and the rolls-25 and then will cut the paper transversely just outwardly of where he applied the glue, separating the wound rolls from the large roll. The machine is then started again for a moment, which will cause the severed portions to which the elongated strip 26 is applied to be wound tightly onto the rolls 25 and the extreme end portions of the severed strips which have had glue applied thereto are caused to adhere to the rolls. The result will be that the spindle 18 will then contain a plurality of individual narrow rolls wound on individual spools 23 and extending across all of said rolls between the two outermost convolutions of the same,

and adhering between the same, will be the elongated strip 26, described.

The spindle 18 containing the spools with rolls thereon is then removed from its bearings and the machine and when the rolls thereon are rapped with a mallet the lines of perforations 27 on the strip 26 will easily separate or cause severance ofthe strip, with the result that the individual rolls, each on its spool, may he slid off the spindle, with the result shown in Fig. 10. As there illustrated the portion 26 of the strip 26 remaining in each roll provides the improved insert strip or tab and the offset portion 31 severed from the adjacent portion of the entire strip 26 provides a projecting tab by which means, when the roll is to be opened or unwound, the outer convolution can be torn transversely to the roll to free it and to permit unwinding of the roll.

positioned as heretofore From the foregoing description it will be seen that the improved method of forming paper rolls provides a very sim le, expeditious and inexpensive manner 0 formmg a plurality of individual rollswith ofiset insert strips.

What I claim as my invention is:

1. The method of forming material rolls with insert strips which consists in simultaneously winding a plurality of narrow strips of material onto a plurality of rolls arranged in end-to-end relation on a single spindle disposing an elongated transversely scored strip upon-the strips of material lengthwise of the row of rolls with the scoring ofl'set slightly from the longitudinal edges of the material of the rolls, then causing said strip to be wound into the rolls and secured between outer convolutions of the same, and finally separating the rolls and severing the scored strip at the various lines of scorin with a portion of said strip being retaine within each roll.

taneously winding a plurality of narrow 2. The method of forming material rolls with insert strips which consists in simultaneously winding a plurality ofv narrow strips of material onto a plurality of rolls arranged in end-to-end relation on a single spindle, disposing an elongated transversely scored strip upon the strips .of material lengthwise of the row of rolls with the scoring offset slightly from the longitudinal edges of the. material of the rolls,. then causing said strip to be wound into the rolls and secured between outer convolutions of the same, and finally removing all of the rolls from the single spindle and separating the rolls and causing the scored strip to tear at the various lines of scoring.

3. The method of forming material rolls with insert strips which consists in simulstrips of material onto a plurality of rolls arranged in end-to-end relation ona sin le spindle, disposing an elongated strip 0 a length substantially equal to the combined width of the individual rolls with transverse scored lines separated from one another a distance equal to the width of each roll upon the strips ofmaterial lengthwise of the row of rolls with the scoring oflset slightly from the longitudinal edges of the material of the rolls, then causing said strip to be wound into the rolls and secured-between outer convolutions of the same, and finally separating the rolls and severing the scored strip at the various lines of scoring with a portion of said strip being retained within each roll.

In testimony whereof, I aflix my signature.

CLARENCE B. ANDERSEN.

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