US2341492A

US2341492A - Wrapper

Info

Publication number: US2341492A
Application number: US462574A
Authority: US
Inventors: Howard B Tuthill
Original assignee: Oliver Machinery Co
Current assignee: Oliver Machinery Co
Priority date: 1942-10-19
Filing date: 1942-10-19
Publication date: 1944-02-08
Anticipated expiration: 1961-02-08

Description

Feb. 8, 1944. l H. B. TUTHILL 2,341,492

WRAPPER Filed oct. 19, 1942 Patented Feb. 8, 1944 i UNITED STATES PATENT OFFICE Y 2,341,492 l t l WRAPPER p Howard B. Tuthill, Grand Rapids, Mich., assigner to Oliver Machinery Company, Grand Rapids, i Mich., a limited partnership of Michigan Application Octoherlll, 1942, Serial No. 462,574

' 4 Claims. (Cl. 229-87) This invention relates to a method of wrapping articles, and a wrapper of a special type and character therefor, particularly useful in the wrapping of relatively small articles of a cylindrical or similar outline. Articles of such type, such as small cylindrical paper boxes within which a plurality of small articles are contained, tape wound in rolls of cylindrical form and Athe like are many times wrapped to exclude dust or other undesirable outside foreign material. With my invention complete exclusionV oi dust or other undesirable materials may be secured in a very practical and simple manner.

The invention is concerned with the wrapping of such containers or other articles of analogous shape by means of two wrapping members, one to be applied to each flat side of the receptacle or cylindrical article and have extending marginal portions turned to lie at the outer curved sides of the containers or cylindrical articles, the

extending marginal portions of one of the wrapping members overlapping that of the other'4 and being permanently sealed, either by the application of adhesive or, as may occur with wrappers of thermo-plastic material by softening and pressing the overlapping portions of the members together under the application of heat. The type and character of the adhesive which maybeused is not specifically a part of the invention, as many and various kinds of sealing may be used.

A further feature of the invention resides in the radial slitting of the extended marginal por'- tions of the wrapping members toprovide` separate extending portions which may be turned against the sides of the article, overlapping each other at adjacent edge portions, and such separated marginal portions of the second member used in wrapping likewise overlap each other and overlap substantially all of said portions of the first wrapping member applied. A

A still further object and feature of the invention is to provide a continuous strip of wrapping members which are connected together at adja cent portions and at which connecting points the wrapping members may be separated from each other in application; and said connecting portions are transversely slit extending into both of the adjacent wrapping members so that when the separation at the connecting portion occurs the separated projecting portions of the wrapper are provided for bending to lie against the sides of the receptacle or article wrapped.

With this invention a very snug and secure sealing may be obtained and one which excludes the undesired entrance of foreign material.

,cured in place, and

An understanding of the invention may be vhad from the following description taken in connection with the accompanying drawing, in which,

Fig. 1 is a plan View of one of vthe"wrapper members, two of which are used in completely wrapping a nat .cylindrical article. y

FigQZ is a perspective view illustrating tlieiirst step of the wrapping process, the'placing' of .the article to be wrapped upon and at .the center of the wrapping member shown in Fig. l. ,L

Fig. 3 is a perspective View illustrating the next succeeding step of wrapping, the turning upward of the projecting separated marginal portionsoi kthe wrapper against the sides of the article.

Fig. 4 is a -perspective view .illustrating the completely wrapped article in which. after the attachment of the first wrapper, a second like wrapper is placed against the lupper side of the article and its extending marginal portions turnedv downwardly against those of the rstwrapperand s e- Fig. 5 is a fragmentary plan of a continuous strip of the wrapper. members.

Like reference characters refer tolike parts in the different gures of the drawing. f 5 Y.

The wrappers, two of whichareusedwitheach article shown in iiig.v 1 consists, for cylindrical artic1es,of circular bodies i of paper,lCellophan'e er other equivalent thin wrapping material which `at their outer marginal portions 'are radially slit,

as at 2, at spaced apart points in thefcircumfer# ence of thewrapping member providing tongues 3 which are separated from each other at their edges butintegrally'connected at their inner ends with the body'of the Wrapper. j4 1 In wrappinga cylindrical article, suchl as a small receptacle or article shown at 4 said article is placed upon the central portion of the wrapper I with the tongues 3 extending outwardly therefrom. The tongues are then turned upwardly against the curved sides of the article, adjacent tongues partially overlapping each other as indicated. An identical wrapper like that shown in Fig. l is then placed against the upper side 0f the article 4 against the iiat upper end thereof and the tongues 3 turned downwardly to overlap and bear against the upwardly turned tongues 3 of the first or lower wrapper member applied. The length ofthe tongues 3 is such that they reach to within a short distance of the lower side of the wrapped package which is thus produced.

The sealing of the wrapped package may be attained in numerous ways. A suitable adhesive which may be moistened may be used at the inner sides of the tongues 3. A thermo-plastic adhesive may be applied thereto which will soften and adhere upon the application of heat and, of course, when such wrappers themselves are of a thermo-plastic, Cellophane, for example, the heat application to said tongues 3 will cause their ceinenting adherence to each other. The overlapping of the tongues one upon another at their edges together with the 4outside overlapping of the second wrapping member applied in the manner described closes all entrance passages against outside undesirable foreign material.

In the wrapping of packages of this character, particularly in the use of machines for doing such wrapping, the wrapping members I. will be" connected in a continuous strip, oneyafter an other integrally connected at adjacent portions' by portions 5 across which theindividual wrapper members may be severed one from the other when used. These connecting sections 5 areslit as at 6, the slits extending across thevconnecting portions and thence into the bodies of the wrapping members substantially midway between the opposite edges of the connecting portions. Thereupon when the connecting portions at 5 are cut the ends of the elongated slits 5 will serve the same purpose as the radial slits 2 to separate the tongues, indicated at l, which are left in each wrapper member.

It is of course to be understood that in some cases the radial slitting of the wrapping members may not be essential. For example, with Cellophane wrappersthe projecting marginal' portions of the wrapping. members may be turned and folded so as to bear against the sides of the article which'l is being wrapped. Preferably however the wrapper will be radially slit from its periphery the required distance", which distance will be governed .by the overall size of the Wrapper member and the diameter of the member which is to be wrapped, the inner ends of the slits 2 coming approximately to the edges of the article wrapped, and the length of the slits 2 being only a little less than the height of the` article. j

'Ihis wrapping of the articles of the character described is readily accomplished and the sealing thereof against entrance of anything from kthe outside is 'most effectively accomplished.

It is Vto be understood that the articles to be wrapped need not necessarily be of cylindrical form. Articles or receptacles of an elliptical or oval form with rounded corners and the like or articles and receptacles of a rectangular form may be wrapped in this manner, the. invention not being limited to any particular ygeometric shape of the article to be wrapped.

lll

The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope.

I claim:

l. An article to be wrapped having upper and lower at sides, a wrapper member located against the under flat side of said article and having a marginal projecting portion turned upwardly to lie against the sides ofthe article wrapped and extending nearly to the upper side thereof, a second wrapper member located against the upper side of the article and having marginal portions turned downwardly over the upturned portions of the first wrapper covering the same and extending nearly to the bottom of the article wrapped and means for sealing the overlapping portions of the two Wrapping members.

2. A4 continuous strip of wrapper members comprising a plurality of substantially circular wrapper membersA located in alinement and integrally connected. at adjacent portions thereof by relatively narrow connecting sections, said connecting section` of wrapper members each having a slit lengthwise of the strip extending into the adjacent Wrapping members, each of said wrapper members between said connecting sections having inwardly extending radial slits at spaced apart points around said wrapper members.

.3. Acontinuous strip of wrapper members comprisng a plurality of substantially circular wrapper' members located in alinement and connected at adjacent portions thereof by relatively narrow connectingr sections, each of said wrapper members between and within said connecting sections' having inwardly extending radial slits at spaced apart points around said wrapper mein- LA wrapping strip comprising, a plurality of wrapping members integrally connected at diamctrically opposite sides to like wrapper members by narrowed connecting sections adapted to.