US2320656A - Web roll changing - Google Patents

Description

June 1, 1943.

o. c. ROES EN WEB ROLL CHANGING 2 Sheets-Sheet 1 Filed July 22, 1941 BY Y f 4 ATTQRNEYS o. c. ROESEN 2,320,656

WEB RoL'L CHANGING.

Filed July 22, 1941 Jun 1, 1943.

2 Sheets-Sheet 2 4 INVENTOR Qatar 6. 72066622 H ATTORNEYS Patented June 1, 1943 WEB ROLL CHANGING Oscar C. Roesen, Scarsda le, N. Y., assignor to Wood Newspaper Machinery Corporation, Plainfield, N. J., a corporation of Virginia Application July 22, 1941, Serial No. 403,515

27 Claims.

it runs to the press mechanism. These webs .must be replaced periodically during the printing of each edition of the newspaper or other printed matter, and it is, of course, essential in modern high speed printing practice that the web roll replacement be made without interruption of the press operation. Accordingly, the new or replacement web roll must be accelerated to a speed at which its surface velocity is the same as or very closely approaches the speed of the web running to the press from the expiring roll. The'ieading edge of the new web roll must be removably fastened to the roll surface and must carry a strong and tacky adhesive, and the two webs must be pressed together after the proper new roll speed is attained and only at such point in the rotation of the new roll that the adhesivecarrying leading end of the new roll is approaching the surface of the running web. The last mentioned condition is essential to prevent the partial sticking of the adhesive-bearing leading end of the new roll to the running web, whereby a loose adhesive-bearing flap would be carried into the press.

In the past, the above described web splicing operation has been successfully performed either by slowing down the running web, with consequent decrease in output, or by the use of complicated and expensive apparatus. Thus it has been necessary to provide high speed splicing or "paster" equipment such as roll spindle driving mechanism or surface driving belts capable of being operatively connected with each new roll in turn to accelerate the same to the required speed, and further to provide mechanism timed in accordance with the angular position of the leading edge of the web on the new roll for properly governing the critical operation of pressing the running web against the new roll surface, and thereafter severing the web from the expiring roll.

With the above and other considerations in mind, it is proposed in a cordance with the present invention to provide an improved and highly simplified method of splicing the web from a new roll to the web running at high speed from an expiring roll without the use of any auxiliary apparatus such as new roll speed-up means of the belt or spindle drive type or timed web pressing or severing means. The invention also embraces an improved roll of web arranged formaking a splice according to my improved method,

and'certain novel elements whereby a conventional roll of paper web may be readily converted into a roll prepared and arranged for use in accordance with my method.

The invention will be described in connection with a typical application thereof, namely, in the splicing or replacement of a paper web running into a printing press. It should be understood that the method and apparatus described is also applicable to the replacement of webs of fabric and other material and paper webs fed to mechanism other than printing presses.

In describing the invention. in detail, reference will be made to the accompanying drawings in which certain typical embodiments thereof are illustrated. In the drawings:.

Fig. 1 is a perspective view of a paper web roll prepared for use in accordance with the invention;

Fig. 2 is a sectional view on a larger scale of the inner or core end and outer or leading end of ing the use of distinctively colored end portions;

the web for a similar roll;

Fig. 3 is a sectional view similar to Fig. 2 of a web with the leading end formed as a separate section attached to the main body portion of the web;

Fig. 4 isa sectional view similar to Fig. 2 showto the roll core;

Fig. 5 is a perspective view of the web illustrat- Fig. 6 is a diagrammatic side elevation of a web roll reel and tension belts for use in practicing the invention in the position in which the web is running from one roll prior to the .time when rcplacement thereof by a new roll is required;

Fig. 7 is an elevation similar to Fig. 6 showing the reel in the position it occupies while the new web roll showing the arrangement of the tension belts.

Referring to the drawings, and particularly to Figs. 1 through 5, a new paper web roll [2 of the type used to supply high speed printing presses and incorporating certain features of my invention is illustrated. The leading or outer end l3 of the web on this roll is preferably removably secured to the roll surface by any suitable known means. In the disclosed embodiment, frangible gummed tabs l8 are used for this purpose, but a weak adhesive, sticking the leading end I3 to the surface of the next course of the web on the roll, may be substituted in accordance with known practice. The opposite ends of the tabs l4 illustrated are respectively stuck to the outer surface of the leading end -l3 of the web and to the surface of the next course of the web on the roll, and'a weakened portion such as a line of perforations l5 separates the tab ends so that the tabs tear along this line and release the leading end of the web when it is spliced to a running web and pulled away from the roll. Frangible tabs of this type are described in detail in Wood Patent No. 1,996,497.

In accordance with my invention, the opposite surfaces of the web on each new roll are prowhich adheres to the web when applied, and.

when dried its surface coheres to a like or similar adhesive surface but does not adhere to an uncoated web surface.

An adhesive suitable for the purpose described may comprise any one of a number of known non-vulcanizing rubber cements. In general, these cements comprise raw unvulcanized rubber, usually subjected to a small amount of hot milling, dissolved in a suitable solvent. Solvents employed in such cements include gasoline, benzene, ethylene dichloride, carbon tetrachloride, varnish makers .and painters naphtha, and a special rubber solvent comprising a petroleum distillate having an initial boiling point of from about 120 to 180 F. and an end point of from about 250 to 288. F. The amount of rubber in such cements runs up to 8% or 10%, and known solvent diluents such as isopropanol, ethanol, butanol, amyl acetate, butyl acetate, acetone, or

vmethyl ethyl ketone are-sometimes added. A

commercial rubber cement suitable for the described purpose is available on the market under the trade name "Best-Test white rubber paper cemen and is made by the Union Rubber and Asbestos Company of Trenton, New Jersey. Al-

though the above described rubber cement are suitable self-sticking adhesives, it should be understood that the use of similar adhesives having this self-sticking property is not precluded.

. As shown in Fig. 1, a layer It of self-sticking adhesive is applied across a relatively narrow area on the outer surface of the web at or adjacent its leading end l3. This adhesive is applied in fluid form and is thereafter dried, by

' the core 2| to form the roll l2.

heated or dried air currents or otherwise until its surface will not adhere to an uncoated web surface, but will adhere to a similarly dried surface of the same or a similar self-sticking adhesive layer.

A similar layer I! of self-sticking adhesive is similarly applied to the web adjacent its inner or core end on the opposite surface thereof from that bearing the leading end layer I6. Thus in the illustrated embodiment, the inner or core end layer I1 is on the inner surface' of the web. Although the core end layer may be applied directly to the web 26 as shown at ii in Fig. 3, it is generally preferable that the adhesive layer I! be applied to a separate end section H which is later spliced to the web 26 bysuitable means such as a strong adhesive, as indicated at 20 in Fig. 2. The tail end of the end section 19 is preferably left bare for a distance sumcient to permit the application of several uncoated courses 25 thereof to the core 2|, as is customary in winding paper web rolls. These initial turns tend to smooth out any irregularities in the core or the web end. For a purpose hereinafter explained, the layer l1 of self-sticking adhesive is applied along a longitudinal section of the inner web, surface which is at least as long as the circumference of the finished roll l2. .The roll circumference does not vary greatly in different rolls wound for use in the same presses,

and accordingly it is feasible to adopt a length of core end adhesive layer which will completely encircle any new roll encountered.

It is not in all cases essential that the selfsticking adhesive layer l I extend continuously across the web surface. The amount of adhesive used for this layer may be reduced by applying it in a, plurality of longitudinally extending strips, as indicated at 22 in Fig. 5.

The core end layer I! of self-sticking adhesive is applied to the web section l9 or the web 26 and dried thereon as explained above in connection with the leading (and adhesive layer I6. With the core end adhesive layer applied directly to the web or secured thereto on a separate end section, the web may be wound up on The paper web rolls used by newspaper and other presses are very large and heavy, and accordingly the central layers are subjected to considerable pressure from the weight ofthe overlying courses. To

insure against any possibility of adhesion between the surface of the core end adhesive layer and the outer web surface engaging the same in the wound roll, I may provide an adhesive repellent on the opposite side of the web section simple-exposure to the air, by mild heat or by I9 or web "from the adhesive layer I1 or H. This adhesive repellent may comprise a. wax

, coating of known composition on the web surface or a strip of thin waxed paper or like adhesive-repellent sheet laid along the surface, both of which expedients are illustrated at 23 in Figs. 2, 3 and 4. When used, the adhesive repellent should be coextensivewith the adhesive layer laterally of the web and should extend beyond the adhesive layer toward the core end a distance at least as great as the circumference of the core 2| or of the courses comprising the web tail 24 wound thereon. With this arrangement, sufficient adhesive repellent is provided to completely protect. the tail of the web from engagement with the selFsticking adhesive layer I! or II wound over it.

To effect or assist web severance, the web sect on I9 or web 26 is weakened transversely along a line below the core end adhesive layer in some suitable fashion as by the perforations 25. In certain cases it may be desirable to firmly se cure the web tail 24 to the core 2| below the line of perforations 25, and this may be accomplished by sticking successive layers of the tail to each other with a strong adhesive, as illustrated at in Fig. 4.

It may be preferable to apply the self-sticking adhesive layer I6 directly to the leading end of the web on the roll l2 in the press room or other point where the splice is' to be made. Thus in Figs. 1 and 2, the adhesive layer I6 is shown applied directly to the web 25. The leading web and may, however, comprise 9. Separate web section 21 spliced to the web 26 at 28 by a strong adhesive or equivalent means as shown in Figs. 3 and 5.

In order that the section of the web in which the splice is made maybe readily located in and discarded from the printed matter or other product, at least one of the self-sticking adhesive-bearing ends of the web may be given a color distinct from that of the main central web portion. This expedient is illustratedin Fig. 5 where both the leading end section 21 and the core end section l9 are colored red or some other distinctive color, the central web 26 being assumed in this instance to be white. Since the 'core end is larger and in many cases is the only separable web section, it is usually most convenient to apply the color to this section only.

The operation of splicing a web in accordance with the invention has been illustrated in Figs. 6 through 10. In these figures I have illustrated a conventional three-roll reel at,3l. As shown in'Fig. 6, the reel 3!, which turns about a central axis 32, carries three spindles 33, 34 and 35. The spindle 33 is shown carrying a roll 35 from which the running web 37 passes over an idler roller 38 and to the press or other web-consuming equipment; not shown. New rails 39 and Ml are shown mounted respectively on the spindles 34 and 35. All of the rolls here illustrated have been prepared for splicing as described in detail above. A set of tension belts tacts the running web, but since. as described above, this adhesive is dried to a point at which it does not adhere to the uncoated web surface. neither the acceleration of the new roll nor the normal running of the web 31 are impeded.

After the new roll has attained the proper speed, the running roll continues to run off until the adhesive layer l'l adjacent its core end approaches the new roll 39. During this interval. or during acceleration of the new roll, the brushes 50 may be lowered to cooperate with the belts in applying pressure through the running web against the new roll surface across the entire width of the webs. It should be understood that the use of the brushes is in no way essential-to the operation. When the core end layer ll of selfsticking adhesive on the running web 31 engages the cylindrical surface of the new roll 39, it moves along this surface until it comes opposite and presses against the self-sticking adhesive layer 16 at the leading end of the new web, and thereupon the two adhesive layers cohere and secure the webs tightly together. This mutual engagement of the adhesive layers is insured by the fact that the layer I! on the running web is as long as or longer than the maximum circumference of the new roll. Immediately after the webs are thus Q! extends parallel to the roll surfaces around the idler rollers 32, 43, d4, 45, 4B and 41, and a weighted or otherwise biased idler 48 maintains these belts at the desired tension. The belts ll are preferably driven at a speed substantially equal to that of the runniig web 31 by suitable means such as a shaft 49 connected to the press or other web-consuming apparatus. The belts l! are preferably of the narrow type, spaced apart transversely of the web as shown in Fig. 11, and brushes 58 of known construction, supported by suitable means to swing about the pivot 5| and arranged to engage the web 31 between the belts ll opposite the new roll 39, may

be provided if necessary or desirable.

When it becomes necessary to replacethe web running from an expiring roll such as 36 with that from a new roll, the reel 3! is first rotated clockwise from the position shown in Fig 6 to that of Fig. 'l in which the cylindrical surface of the new roll 35 engages the surface cf the running web 31 and presses this'web between its surface and thebelts ll. The rapidly moving web 31 quickly accelerates the new roll 38 to a speed such that its surface velocity equals or approximates the velocity of the running web 31. During this roll acceleration, the self-sticking adhesive layer l5 at the leading end of the web on the new roll repeatedly conspliced together, the leading end 13 of the web from the new roll is pulled away from the roll surface, the tabs 14 or other web and fastening means on the new roll being separated. The new roll web then becomes the running web, and the reel 3| may be further rotated clockwise to increase the wrap of the straps 4| about its surface during its run as may become necessary. The brushes 50, if employed, may be retracted after the splice is made.

At the time that the splice is made or shortly thereafter, the line of perforations, or equivalent weakened portion 25 of the web or its core section, runs off the expiring roll. At this point, the pull of the web severs it along the perforations, as indicated at 52 in Fig. 9. This web severance may be expedited by fastening the tail of the web to the core, as explained above and illustrated in Fig. 4. In this case, an increased tension is imposed on the web when it has run off to the point. that it is fixed to the core, whereupon the web breaks along the line of perforations 25. Instead of so securing the web to the core, severance along the weakened line may be expedited by imposing.

1 causes severance as the line of perforations 25 runs off the expiring roll.

If desired, the old web may be severed 'after the splice by a knife 154 or other web-severing part in a known manner. 'This operation is llustrated in Fig. 10. The knife 54 may be moved to cutting position after the splice is made, either by a manual operation or by known automatic means such as means responsive to the reduction in the diameter of the expiring roll to a predetermined point.

It should be understood that the' above described splicing operation is not limited to the use of a conventional three-roll reel, but is equally applicable to a two-roll reel, a roll stand,or any other roll-carrying mechanism capable of bringing a new roll close to a web running from an expiring roll. 7 Further, the adhesives used to form the layers 'at the leading and core ends of the webs may differ in nature although it is preferred described.

The method of the invention effectively splices the web from a new roll to the running web without any reduction in web speed and without the used of any special roll-accelerating means. This avoids the necessity of correlating the diameter ofeach new roll to the web speed and adjusting a spindle drive roll accelerating mechanism accordingly, and eliminates the use of speed-up belts movable into engagement with each new roll in turn. A more important advantage of the invention is the fact that it wholly eliminates critically timed splicing operations. All that the operator has to do is turn the reel to move the new roll against the running web when the reduction in size of the rimning roll indicates that it is approaching its end. Thereafter the splicing operation is self-performed by the self-sticking adhesive layer arrangement, and no critically timed apparatus or adjuncts governed in accordance with the angular position of the new roll or otherwise are required.

A particular advantage of my improved method is that it efiects an important economy in the use of the web from the web rolls. Thus it permits complete or substantially complete use of the web from each expiring'roll without danger that the 2,220,666 that both be of the self-sticking type hereinabove' face of the web on the new roll substantially at its leading edge and the inner surface of the running web adjacent its inner, end, said adhesive layer on the inner surface of the running web extending longitudinally of that, web for a distance at least as long as the circumference of the new web roll, drying the exposed surfaces of the adhesive layers so applied to a point where they will not adhere to an uncoated web but will adhere to each other, removably securing the leading end of the web on said new web roll to web will run out before the splice is made. Under prior practices, the operator had to estimate when the running roll was so far depleted that replacement was necessary, and to so time his new roll speed-up and splicing operations as toavoid rimning out of the old roll before the spice was completed. Such estimates always erred on the side of leaving too much web on the old roll. Such an error was the natural result of an endeavor to avoid missing the splice. If the web ran off the old roll before the splice could be completed, the press or other web-consuming'apparatus had to be stopped and rethreaded, and the loss of production time thus occasioned was far more important than the loss of web resulting from premature roll replacement. As a'result of the presentinvention, the point in the running of the expiring web roll at which the splice is made is fixed when the roll ismade up and the economic consumption of the web is not dependent upon the judgment of the operator or any other variable factor.

I claim: I

1. In a method of splicing. the leading end of a web on a new web roll to a web running from an expiring web roll, the steps of applying a layer of self-sticking adhesive to both the outer surface of the web on the new roll substantially at its leading 'edge and the inner surface of the running web adjacent its inner end, drying the exposed surfaces of said adhesive layers to a point where they will not adhere to the uncoated web but will adhere to each other, contacting the cylindrical surface of the new roll with the inner surface of the running web at a point'in advance of said adhesive-carrying layer adjacent the inner end of therunning web whereby the new roll is accelerated by the running web to a surface velocity substantially equal to the velocity of the running web and continuing such contact where- 'by when said adhesive layer on the running web engages said adhesive layer on the new web, the webs are spliced together.

2. In a method of splicing the leading end of a web on a;new weblroll to aweb running from an expiring web roll, the steps of applying a layer of self-sticking adhesive to both the outer surthe web roll surface, contacting the cylindrical surface of the new roll with the inner surface of the running web at a point in advance of said adhesive-carrying layer adjacent the inner end of the running web whereby the new roll is accelerated by the running web to a surface velocity substantially equal to the velocity of the running web and continuing such contact whereby when said adhesive layer on the running web engages said adhesive layer on the new web, the webs are spliced together.

3. In a method of splicing the leading end of a web on a new web roll to a web running from an expiring web roll, the steps of applying a layer of self-sticking adhesive to both the outer surface of the web on the new roll substantially at its leading edge and the inner surface of the running web adjacent its inner end; said adhesive layer on the inner surface of the running web extending longitudinally of that web for a distance at least as long as the circumference of the new web roll, drying the exposed surfaces of the adhesive layers so-applied to a point where they will not adhere to an uncoated web but will adhere to each other, removably securing the leading end of the web on said new web roll to the web roll surface, contacting the cylindrical surface of the new roll with the inner surface of the'running web at a point in advance of said adhesivecarrying layer adjacent the inner end of the running web whereby the new roll .is accelerated by the running web to a surface velocity substantially equal to the velocity of the running web, continuing such contact whereby when said adhesive layer on the running web engages said adhesive layer on the new web, the webs are spliced together and thereafter severing the running web from the expiring roll.

4. Ina method of splicing the leading end of a web on a new web roll to a web-running from an expiring web roll, the steps of applying to both the surface of the web on the new roll adjacent its leading outer end and the' surface of the running web adjacent its inner end, a layer of self-sticking adhesive dried to a point-where the exposed surfacesof such layers will not adhere to an uncoated web surface but will adhere to each other, and pressing the surface of the running web which bears the adhesive layerwound from a continuous web around a central core, a layer of self-sticking adhesive adhering to one surface of the web substantially transversely of its leading outer end and having an exposed surface capable of tenaciously adhering to a similar adhesive layer surface but incapable of adhering to the uncoated web surface, and a layer of similar self-sticking adhesive adhering to the other surface of the web adjacent its inner re end for a longitudinal distance at least equal to the circumference of the web roll.

6. A web roll arranged for making a high speed splice comprising a. continuous web wound into a substantially cylindrical roll about a central core, a layer of self-sticking adhesive adhering to the outer surface of the web substantially transversely of its leading end andhaving an exposed surface capable of tenaciously adhering to a similar layer surface but incapable of adhering to the uncoated web surface, and a layer of similar self-sticking adhesive adhering to the inner surface of the web adjacent its core-end for a longitudinal distance at least equal to the circumference of the web roll, the portion of the web adjacentat least one of said adhesive layers having a color distinct from the color of the remainder of the web of said roll.

7. A web roll arranged for making a high speed splice comprising a continuous web wound into a substantially cylindrical roll about a central core, a layer of self-sticking adhesive adhering to the outer surface of the web substantially transversely of its leading end and having an exposed surface capable of tenaciously adhering to a similar layer surface but incapable of adhering to the uncoated web surface, a layer of similar self-sticking adhesive adhering to .the inner surface of the web adjacent its core end for a longitudinal distance at least equal to the circumference of the web roll, and means for reieasably securing the leading end of the web to the cylindrical surface of the roll.

8. A web roll arranged for making a high speed splice comprising a continuous web wound into a substantially cylindrical roll about a central core, a layer of self-sticking adhesive adhering to the outer'surface of the web substantially transversely of its leading end and having an exposed surface capable of tenaciously adhering to a similar layer surface but incapable of adhering to the uncoated web surface, a layer of similar selfsticking adhesive adhering to the inner surface of the webadjacent its core end for a longitudinal distance at least equal to the circumference of the web roll, and a layer of adhesive-repellent material between said core end adhesive layer and the outer surface of the web lying directly beneath such adhesive layer in, the wound roll.

9, A web roll arranged for making a high speed splice comprising a continuous web wound into a substantially cylindrical roll about a central core, a layer of self-sticking adhesive adhering to the outer surface of the web substantially transversely of its leading end and having an exposed surface capable of tenaciously adhering to a similar layer surface but. incapable of adhering to the uncoated web surface, a layer of similar self-sticking adhesive adhering to the inner surface of the web adjacentits core and for a longitudinal distance at least equal to the circumference of the web roll, and a layer of adhesive-repellent material on the outer surface of said web adjacent its core end extending along the area of said web carrying said core end adhesive layer and rearwardly of said layer a distance sufilci'ent to underlie and engage the innermost turn of the web bearing said inner core end adhesive layer. 10. A web roll arranged for making a hig speed splice comprising a'continuous web wound into a substantially cylindrical roll about a central core, a layer of self-sticking adhesive adher ing to the outer surface of the web substantially transversely 01' its leading end and having an a longitudinal distance at ieast equal to the circumference of the web roll, and a layer of adhesive-repellent paper disposed between successive turns of said roll along the portion thereof bearing said core end adhesive layer.

11. A web roll arranged for making a high speed splice comprising a continuous web wound about a central core into a substantially cylindrical roll, a layer of self-sticking adhesive ad= hering to the outer surface of said web substan tially transversely of its leadingend and having an exposed surface capable of tenaciously ad.

hering to a similar adhesive layer surface but incapable of adhering to the uncoated web surface, a. layer of similar self-sticking adhesive adhering to the inner surface of the web adjacent to its core end but spaced therefrom by a distance at least equal to the circumference of the core of the web roll; said inner surface adhesive layer extending longitudinally of the web for a distance at least equal to the circumference of theroll, and a weakened portion extending transversely across the web between said inner surface adhesive layer and the core end of the web.

12. A web roll arrangedfor making a high,

speed splice comprising a continuous web Wound about a central core into a substantially cylindrical roll, a layer of self-sticking adhesive adhering to the outer surface of said web substantially transversely of its leading end and having an exposed surface capable Of tenaciously adhering to a similar adhesive layer surface but. incapable of adhering to the uncoated web surface, a layer of similar self-sticking adhesive adhering to the inner surface of the web.adjacent to its core end but spaced therefrom by a distance at least equal to the circumference of the core of the web roll, said inner surface adhesive layer extending longitudinally of the web for a distance at least equal to the circumference of the roll, means for attaching the inner core end of said web to the'roll core, and a weakened portion extending transversely across the web between its point of attachment to the core and said inner surface adhesive layer.

13. A web roll as defined in claim 5 in which the adhesive-carrying coreend portion is formed separatelyfrom the main central portion of the web and connected thereto.

14. A web roll as defined in claim 6 in which p the adhesive-carrying core end portion is formed separately from the main central portion 'of the web and connected thereto.

15.A web roll as defined in claim 8 in which the adhesive-carrying core end portion is formed separately from the main central portion of the web and connected thereto.

4 16. A web roll as defined in claim 5 in which at least one of the adhesive-carrying end portions is formed separately from the main central portion of the web andconnected thereto.

v 17 A web roll as defined in claim 11 in which at least one of the adhesive-carrying end portions is formed separately from the main central portion of the web and connected thereto.

18. A web roll as defined in claim 12 in which at least one of the adhesive-carrying end portions is formed separately from the main. central portion of the web and connected thereto.

19. A web section for attachment to the core end of a paper web to be wound into a roll for use in high speed splicing comprising a section of paper web and a layer of self-sticking adhesive adhering to one surface of said section and having an exposed surface incapable of ad herlng to uncoated paper but capable of tenaciously adhering to a similar adhesive surface uponcontact therewith, said adhesive layer extending longitudinally of the web section for a distance at least as great as the circumference of the wound paper web roll to which the web section is to be attached.

20. A web section for attachment to the core end of a paper web to be wound into a roll for use in high speed splicing comprising a section of paper web, a layer of self-sticking adhesive ad hering to one surface of said section and. having an exposed surface incapable of adhering to uncoated paper but capable of tenaciously adhering to a similar adhesive surface upon contact there with, said adhesive layer extending longitudinally of the web section for a distance at least as great as the circumference of the wound paper web roll to which the web section is to be attached, anda layer of adhesive-repellent material on the other surface of said web section.

21. A web section for attachment to the core end of a paper web to be wound into a roll for use in high speed splicing comprising a section of paper web, a layer of self-sticking adhesive adhering to one surface of said section and having an exposed surface-incapable of adhering to uncoated paper but capable of tenaciously adhering to a similar adhesive surface upon contact therewith, said adhesiv layer extending longitudinally of the web section for a distance at least as great as the circumference of the wound paper web roll to which the web section is to be attached, and a layer of adhesive-repellent material on the other surface of said web section extending beyond the end of said adhesive layer in the direction of the core end of said web section.

22. A web section for attachment to the core end of a paper web to be wound into a roll for use in high speed splicing comprising a section of paper web and a layer of self-sticking adhesive adhering to one surface of said section along a part of itslength and having an exposed surface incapable of adhering to uncoated paper but capable of tenaciously adhering to a similar adhesive surface upon contact therewith, and a weakened portion extending transversely of said web at a point adjacent one end of said adhesive layer.

23. A web section for attachment to the core end of a paper web to be wound into a, roll for use in high speed splicing comprising a section of "paper web and a layer of self-sticking adhesive adhering to one surface of said section along a part of its length and having an exposed surface incapable of adhering to uncoated paper but capable of tenaciously adhering to a similar adhe sive surface upon contact therewith, said adhesive layer extending longitudinally of the web section for a distance at least as great as the circumference of the wound paper web roll to which the web section is to be attached, and a weakened portion extending transversely of said web at a. point adjacent one end of said adhesive v layer.

24. A paper web to be wound into a roll for use in making a high speed web splice comprising a continuous web and areas of self-sticking adhesiv adhering to said web on opposite surfaces thereof adjacent opposite ends thereof, said adhesive areas having exposed surfaces capable of cohering to like surfaces but incapable of adhering to an uncoated web surface.

25. A web roll arranged for making a high speed splice comprising a substantially cylindrical roll wound from a continuous web around a central core, and a layer of selfsticking adhesive adhering to one surface of the web adjacent its inner core end for a longitudinal distance at least equal to the circumference of the web roll and having an exposed surface capable of tenaciously adhering to a similar adhesive layer but incapable of adhering to the uncoated web surface.

26. A web roll arranged for making a high speed splice comprising a continuous web wound into a substantially cylindrical roll about a central core, a layer of self-sticking adhesive adhering to the inner surface of the web adjacent its core end for a longitudinal distance at least equal to th circumference of the web 'roll and having an exposed surface capable of tenaciously adhering to a similar layer surface but incapable of adhering to the uncoated web surface, and a layer of adhesive-repellent material between said core end adhesive layer and the outer surface of the web lying directly beneath such adhesive layer in the wound roll.

27. A web roll arranged for making a high speed splice comprising a continuous web wound about a. central core into a substantially cylindrical roll, a layer of self-sticking adhesive adhering to the inner surfac of the web adjacent its core end but spaced therefrom by a distance at least equal to the circumference of the core of the web roll and having an exposed surface capable of tenaciously adhering to a similar adhesive layer surface but incapable of adhering to the uncoated web surface, said inner surface adhesive layer extending longitudinally of the web for a distance at least equal to the circumference of the roll, and a weakened portion extending transversely across the web between said inner surface adhesive layer and the core end of the web.

OSCAR C. ROESEN.

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