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Publication numberUS2076870 A
Publication typeGrant
Publication dateApr 13, 1937
Filing dateMay 17, 1935
Priority dateMay 21, 1934
Publication numberUS 2076870 A, US 2076870A, US-A-2076870, US2076870 A, US2076870A
InventorsTaylor James A
Original AssigneeTaylor James A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Core-end for paper-winding cores
US 2076870 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

'A ril 13, 1937.


Jame-sA-Tzylor afdnily Patented Apr. 13, 1937 UNITED ST PAT NT OFFICE Application May 17, 1935, Serial No. 22,064 In Canada May 21, 1934 1 Claim.

This invention relates, in general terms, to core structures over which paper or other sheet material may be wound into rolls and transported from the mill or factory to the ultimate user who unwinds the material from the roll while properly supported on a core shaft or shafts.

My present conception deals more particularly with the core-end portion of the complete core structure, and is concerned primarily with certain improvements in these parts with which, in one form or another, it is usual to equip cores. for winding purposes. The core-ends function to maintain a uniform shape to the core itself and further to provide means to rotate the core when material is being wound thereon, or retarded in rotation when the material is being unwound therefrom.

Various forms and designs of cores and coreends have heretofore been evolved, some being more or less expensive to manufacture; and due to the considerable capital investment made in these devices of the costlier type it is necessary to re-use them until they are unfit for further service.

Returning the empty cores from the consignee of goods in roll form, to the factory or paper mill involves considerable expense and increases the cost of the manufactured product. For instance, where the cores must be sent back to the mill, after each shipment, account must be kept of them, and with freight, trucking and handling charges overhead expenditures are largely increased. Furthermore, these cores must be replaced, sooner or later.

5 -It is an object of this invention to eliminate,

insofar as is possible, this extra cost item.

In my improved core and core-end equipment I have sought first of all to provide a comparatively low cost product. I employ a cheaply 40 constructed core made of a plurality of windings of paper, glued, and compressed into a compact, stiff tube.

In each end of the core I insert a sleeve made of metal and having very simple facilities for as effectively securing the core-end to the core proper. In the sleeve there is provided a keyway which interlocks with the key in the shaft on which the core is mounted and by which it is secured when paper or other sheet material is 50 being wound on or unwound therefrom.

Cores equipped with my core-ends may be used on the stub shafts of winding reels or they may be employed in connection with winding and unwinding apparatus in which full-length shafts are 55 used.

In the accompanying drawing, in which like reference characters are employed to identify like parts, I have disclosed an embodiment which, at the present time, I consider preferable to other possible forms in which the invention might 5 be carried out.

In the drawing Fig. 1 is a perspective view of the flanged, tubular element of my core-end parts;

Fig. 2 is a fragmentary plan view thereof; 10

Fig. 3 is a perspective View of the reenforcing element, and v Fig. 3a is a modification thereof;

Fig. 4 shows a fragmentary sectional elevation of the parts, including the core, before the clinch- 15 mg operation has started;

Fig. 5 is similar to Fig. 4 except that the clinching work has now been completed;

v Fig. 6 is a fragmentary end view of the finished product;

Fig. 7 illustrates in perspective view the coreend as it is being inserted in the end of the core, and

Fig. 8 shows one end of the core equipped with my device.

Referring to the drawing, 0 is a paper core and K is a key-way cut in each of its ends for the purpose of securing it against rotation on the shaft supporting it, after the reenforcing element has been placed in position in the key- 30 way space K in the core.

The core-end comprises a sleeve l which is insertable in the end of the core C, and a flange 2 integral with and disposed at one end of the sleeve. The diameter of the flange 2 is substantially coincident with that of the periphery of the core C.

By transversely shearing the wall of the sleeve at two locations adjacent the flange 2' and longitudinally and centrally parting the sheared portion and forcing these sheared parts outwardly, two parallel outstanding ears la, la are formed.

The outer ends of the ears la fall short of reaching the cylindrical path in which lies the periphery of the flange 2. The ears form the lateral walls of the key-way space lb, and abreast of this opening and merging thereinto is another opening 2a made by cutting away a portion of the flange 2.

Mounted over the ears la is a reenforcing member comprising a plate 3 each end of which is bent upon itself and then bent outwardly toform two parallel legs 3a which straddle and closely embrace the ears la. The parts preferably are electric welded at locations W, W.

As a matter of convenience in assembling the parts the double thick ends 312 are slightly inclined from the intermediate portion 3, the core itself thus being more easily slid under the overhanging portions 31).

In. Fig. 7 the parts are shown partially inserted in the paper core C, and in Fig. 8 they are illustrated as they appear in the finished product.

When, in the process of assembling the coreend, the flange 2 abuts on the end Ca of the core, the legs 3a will have become tightly seated in the key-way K, with the portions 3b pointing slightly away from the surface of the core C, as shown in Fig. 4.

By hammering the ends 312 down and indenting them into the more or less flexible wall of the core proper, the entire outer surface of the device is made uniform and of coincidental diameter, with the entire length of the finished core and core-ends void of obstructions and capable of having the paper wound thereover in even layers.

For the purpose of providing still greater security against end-wise displacement of the coreend from the core, I may elect to construct the member 3 as shown in Fig. 3a,, in which view the lips 30 are shown abruptly and pointedly bent toward the core, forming therein sharp indents when the hammering operation which brings the periphery of the reenforcing element in line with the circular contour of the core, is completed.

Cores equipped with my core-ends are a very eflicient carrying means for not only newsprint paper, for which they are particularly adapted, but for various other sheet materials, as cloth, roofing material and infact anything susceptible of being wound into rolls.

These devices, made in accordance with my invention, are primarily one-way shipping mediums for rolled goods of the class referred to, and are sufliciently low in original cost to justify their being discarded after fulfilling this purpose. In other words, after the material has Ween unwound and the cores stripped, the metal portion may be junked and the core proper utilized as waste material.

What I claim is:

A core-end comprising in combination with a paper-core having a key-way in the end thereof, a sleeve insertable in said paper core, a flange on said sleeve having a portion cut away for keyseating purposes, two ears extending outwardly from said sleeve, formed by partially shearing the wall of the sleeve and forcing the sheared portions outwardly, leaving a key-receiving opening continuing from and in alignment with the key-way in said flange, the outer ends of the ears being disposed at a less distance from the axis of the sleeve than is the periphery of said flange, a cross member disposed over the outer ends of the ears, legs integral with said cross member adapted to straddle and closely contact with the sides of said ears and when assembled in said paper core to engage the sides of the keyway therein, laterally extending portions on said cross member adapted to be impressed into the wall of said paper core, whereby the outside contour of said cross member is coincident with that of said paper core, and pointed, indenting portions on the corners of said cross member farthest from. said flange, adapted to prevent longitudinal displacement of said core-end from said paper core.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4874139 *Oct 31, 1988Oct 17, 1989Daniel KewinTubular core assemblies for rolls of paper or other sheet material
US5236141 *Mar 25, 1992Aug 17, 1993Kewin Daniel DTubular core assemblies for rolls of paper or other sheet material
US5340050 *Apr 20, 1993Aug 23, 1994Sonoco Products CompanyTubular core assembly having inside-diameter reducing end members secured by mechanical interlocking member
US5356093 *Jan 27, 1992Oct 18, 1994Kewin Daniel DTubular core assemblies for rolls of paper or other sheet material
US5393010 *Apr 20, 1993Feb 28, 1995Sonoco Products CompanyTubular core assembly for winding paper and other sheet material having mechancially interlocked end members
US5469619 *Apr 21, 1994Nov 28, 1995Sonoco Products CompanyTubular core assembly having inside-diameter reducing end members secured by mechanical interlocking member
US5595356 *Oct 12, 1995Jan 21, 1997Kewin; Daniel D.Tubular core assemblies for rolls of paper or other sheet material
US5725178 *Jan 3, 1997Mar 10, 1998927246 Ontario Inc.Tubular core assemblies for rolls of paper or other sheet material
US6076764 *Oct 30, 1998Jun 20, 2000F.T. Acquisitions, L.P.Combination paper roll core and paper tube plug
US6264129Jan 13, 2000Jul 24, 2001Free-Flow Packaging International, Inc.Mandrel mount
US6273360Jan 13, 2000Aug 14, 2001Free-Flow Packaging International, Inc.Combination paper roll core and paper tube plug
US20080035696 *Aug 8, 2007Feb 14, 2008Nichols Monica SSheet Product Package
U.S. Classification242/611.2, 242/610.4, 242/613.5
International ClassificationB65H75/18, B65H75/30
Cooperative ClassificationB65H75/30
European ClassificationB65H75/30