US1967700A - Wrapper - Google Patents

Description

July 24, i934. E, H, ANGIER LQY@ WRAPPER Filed April 21, 1932 atented .Fuly 24, 1.934

STATES PATENT ori-"ieg WRAPPER Edward H. Angier, Framingham, Mass., assignor to Edward H. Angier, trustee under agreement and declaration of trust, designated as Angier Laboratories, Framingham, Mass.

Application April 21, 1932, Serial No. 606,601

9 Claims.

ized machines adapted to revolve the roll of wrapping material about the cross section of an article while the latter is advanced, such, for instance, as that shown in the patent to Wheildon 1,439,387, Dec. 19, 1922, are in general use. A cardinal object of my invention is to provide an inexpensive wrapper having various advantages in use which will appear as the description proceeds.

My invention will be well'understood by reference to the following description of illustrative embodiments thereof shown by way of example in the accompanying drawing, wherein:-

Fig. l is a fragmentary view of a toric article enclosed in a wrapping formed from a strip of material indicated as drawn from a roll thereof;

Fig. 2 is a fragmentary plan view of the wrapping strip with parts broken away; and

Fig. 3 is a similar View of a modification.

The wrapping takes the form of a narrow band of indefinite length adapted to be packaged, if desired, in the form of a roll for use in existing wrapping machines or otherwise, and may comprise (Fig. 2) a base 5 of paper, on one face of which is secured the longitudinally extending, spaced tapes 7. While for some purposes the band may be made in whole or in part of substantially inexpansible material, I preferably form the base 5 of resiliently expansible paper as indicated by the partial and diagrammatic showing of crapings thereon, for instance at 9, and the tapes 7 may likewise have a wide-range of resiliency.I For this purpose the tapes 7 may also be formed of craped paper, and when paper is so utilized it is preferably of a heavier grade than the base 5 or may,

as in the case of the tape illustrated in Fig. 3,

be of duplex construction consisting of two strips4 71 and 73 united by asphalt 75. 'I'hetapes 7 or 70 when of paper may be adhesively secured to the base 5 by asphalt, as shown at 11 in Fig. 2. Whatever their nature, I prefer to form the tapes of lsubstantially greater tensile strength or elastic resistance as 4compared with the base strip 5. Iny

this event there is provided in one view a series of spaced tapes or bands, preferably resilient, having great resistance to breakage and supported and held in spaced relation by a relatively light carrier strip 5 which permits a multiplicity thereof to be handled and applied simultaneously in their spaced position. The carrier strip may be light and cheap and of such a frangible nature that it would not be adapted in itself to resist the strains of wrapping so as to bind the enclosed article or confine it, but in the completed package it serves to provide a complete enclosing covering'.

As seen at the bottom of Figs. 2 and 3, I prefer to space the tapes inwardly from at least one edge:

of the band 5.

In Fig.A 3 I have illustrated ne and strong wires 13 extending longitudinally of the band 5 and secured thereto by being sealed beneath the duplex tapes 70. I am aware that it has been proposed to incorporate wire between two sheets of paper for wrapping purposes, but these constructions have not been successful as the wire did not remain in- A position and the product could not conveniently be handled. These diiliculties are obviated in the construction shown.

In applying a helical wrap it is wound under considerable tension. Particularly when an expansible strip is use d as described in my Patent 1,282,167, Oct. 22, 1918, a substantial tension is applied to the strip to partly expand the resilient gatherings both to make it fit the article in the rst instance and to provide a resilient reaction causing. the wrapping to hug the enclosed article. Difficulties of breakage arise more frequently in the case of toic articles such as coils of wire and the like on account of the irregular draft. In applying a wrapping such as herein described a tighter wrap is possible because greater strains can be placed on the strip at the location of the tapes-7 permitting them to be drawn down tightly like bands than would be possible if a strip of full'width having the same resist ance were used. In fact a tension may be placed upon the material at the location of the strips which, if exerted on sucha full-width strip, would be such as to lift the article wrapped from its position in the wrapping machine and make wrapping impossible. As the separate strips are particularly adapted to expand independently and diierentially, they facilitate a tight and smooth wrap. Moreover, in winding an annular or irregular article the maximum stretch or tension will be thrown on the strips in different places and the ,chance of ruptureis minimized.V 'I'he base paper 5 will provide a complete covering for an article and may be relatively frangible, but during the wrapping the initial shocks will come upon the more resistant tapes 7 which will absorb so much of the shocks that the lighter paper 5 is not likely to rupture. At the same time it can give freely to accommodate itself to the shape of the article and to any surface irregularities thereof.

An important advantage arises in utilizing the material described in thatwhen' the band 5 with the tapes 7 exposed onone face thereof is rolled up into the form of a roll shown in Fig. 1, Darts of the paper in one turn will engage between theraised ribs formed by the tapes 7, interlocking the various turns of the roll and eifectually preventing its telescoping, that is, its drawing out to a more or less conical form. This is important, particularly in machine wrapping, since the roll is commonly supported in an overhung position and applied with considerable tension which is likely to telescope the roll and spoil the wrapping.

A package comprising a commodity wrapped with the band-like wrapping described is tightly and securely wrapped. The strip is preferably applied, as indicated in Fig. 1, with the tape 7 exposed at the outer surface. The raised portions provided by the tapes tend to interlock and prevent the wrap from creeping so that adjacent spires might be displaced. If a tear starts across a turn of the wrapping, it will strike one of the tapes and then turn and run parallel thereto instead of continuing across. I recommend applying the wrapping with the leading or overlying edge that shown at the bottom in Figs. 2 and 3 and consisting only of the base strip of paper. Thus, if the coil of wire is rolled, it to an extent travels on the tape '7 and the edge is raised and is less likely to be caught to start to tear. On the other hand, the leading edge of the wrapping band may carry the reinforcing tape directly on the edge thereof, as shown at the upper portions of Figs. 2 and 3. In this caseit will serve the purpose of the edge fold as now utilized in many Wrappings. In this case it may, if desired, be made heavier than the others. For practical purposes the band 5 with a multiplicity of tapes exposed on its outer surface is as resistant to abrasion arising in handling the packaged commodity as a strip embodying a plurality of layers throughout its full width. Of course, the Imere saving in paper stock represents a substantial economy as between the materials thus contrasted. Referring to Fig. 3, the construction shown, whether with or without the wires 13, is particularly adapted to resist abrasion since asphalt has good abrasion-resisting qualities Yand in this case two thicknesses of asphalt, both that between the strips '71 and 73 and that by means of which the tape 70 is sealed to the base 5, are provided before the base 5 is reached.

Referring again to Fig. 3, it will be noted that the strip '71 forming the lower layer of the duplex tape shown is coated on both sides with asphalt and it is thus effectively waterproofed. The resiliency of craped paper is somewhat impaired when wet, but this construction serves as anexample of a wrapping in which there is provided on the paper base 5 a tape of suitable elastic resistance which is unimpaired bv wetting. It will be understood. however. that this effect may be obtained by utilizing other materials of suitable strength and elasticity which are waterresistant. v

Besides the mechanical advantages referred to, the wrapping lends itself quickly and inexpensively to ornamental effects. as, for instance, by the utilization of tapes of characteristic patterns or of colors contrasting withthat of the base strip or among themselves.

' For clearness in the drawing I have illustrated the craping 9 only at intervals, but it will be understood that in the embodiment of the invention shown all the parts are transversely craped and are similarly provided with gatherings rendering them resiliently expansible. It will also be understood that the illustration of the craping is diagrammatic rather than realistic. I am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and 1 therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive; reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

-I claim:

1. A wrapping in the form of a narrow band of indefinite length to be helically wound about a commodity to form an enclosure therefor and comprising a resiliently expansible paper base having supercially adherent thereto spaced resilient tapes of substantially greater elastic resistance.

2. A wrapping in the form of a narrow band of indefinite length to be helically vwound about a commodity to form an enclosure therefor comprising a resiliently expansible paper base having 4spaced longitudinally extending tapes of resiliently expansible paper secured to and exposed at a face thereof.

3. A wrapping in the form of a narrow band of indefinite length to be helically wound about acommodity to form an enclosure therefor comprising a resiliently expansible paper base having spaced longitudinal tapes of markedly greater tensile strength.

4. A wrapping in the form of a narrow band of indefinite length to be helically wound about a commodity to form an enclosure therefor comprising a multiplicity of longitudinal spaced flat bands of a strength suitable to bindand confine the commodity and supported and positioned by a carrier strip of resiliently expansible paper.

5. A wrapping in the form of a narrow band of indefinite length to be helically wound about a commodity to form an enclosure therefor and comprising apaper base having spaced longitudinally extending tapes secured to and exposed at a face thereof, each tape comprising two thicknesses of paper united by asphalt.

6. A wrapping in the form of a narrow band of indefinite length to be helically wound about a commodity to form an enclosure therefor comprising a resiliently expansible paper base having spaced longitudinally extending resilient tapes secured thereto and exposed at a face thereof which retain their resiliency substantially unimpaired when wet.

7. A wrapping in the form of a narrow band of indefinite length to be helically wound about a commodity to form an enclosure therefor comprising a resiliently expansible paper base having spaced longitudinally extending resilient tapes of markedly greater elastic resistance secured thereto and exposed at a face thereof which retain their resiliency substantially unimpaired when wet.

8. Wrapping material comprising a paper base yhaving a plurality of #longitudinally extending spaced wires secured to a face thereof by overlying adhesively secured spaced paper tapes.

9. A lwrapping in the form of a band of indenite length to be helically wound about a commodity to form an enclosure therefor comprising a longitudinally expansible craped paper base reinforced along spaced, longitudinally extending zones thereof by material applied thereto providing a substantially increased, resilient reaction in such zones.

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