US1187388A - Method of making paper bottles. - Google Patents

Description

W. I. REGAN. METHOD OF MAKING PAPER BOTTLES.

N FILED NOV 19 191 APPLIQATIO l S 1,1915- 18Z388. PatentedJune 13, 1916.

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ATTORNEYS i W. F. REGAN.

METHOD OF MAKING PAPER BOTTLES.

APPLICATION FILED NOV. 19. 1913. RENEWED SEPT. 11. 1915.

1,187,888. Patented June 13, 1916.

3 SHEETSSHEET 2- It v 6 1 WITNESSES.-

um/ 135 W? W. F. REGAN.

METHOD OF MAKING PAPER BOTTLES.

APPLICATION FILED NOV. 19, 1913- RENEWED SEPT. H, 19?.5.

1 ,1 87,388. Patented June 13, 1916 3 SHEETSSHEET 3.

WITNESSES:

INVENTOR WILLIAM r. REGAN, or NEW YORK, N. Y., ASSIGNOR T0 UNIVERSAL PAPER no'rrnn' GO., OF WILMINGTON, DELAWARE, A CORPORATION DELAWARE.

METHOD OF MAKING PAPER BOTTLES.

Specification of Letters Patent. Patented J 119 13, 1916,

Application filed November 19, 1913, Serial No. 801,822. Renewed September 11, 1915. Serial No. 50,264.

To all whom it may concern:

Be it known that I, WILLIAM F, REGAN, a citizen of the United States, residing at the city of New York, borough of Brooklyn, county ofKings, and State of New York, have invented a certain new and useful Method of Making Paper Bottles of which the following is a specification.

This invention is a method of making containers from fibrous materials, such as shaped paper bottles, whereby an article with a closed bottom and a tapering neck' portion may be manufactured rapidly and economically.

According to the preferred mode of procedure in producing the container, a prepared bottom member is positioned in cooperative relation to a forming mandrel,- and the fibrous material required to. form the body of the container is fed-or supplied to said forming mandrel, whereupon the mandrel and the prepared'bottom are rotated, as a result of which the paper is wrapped or coiled upon the mandrel and around the bottom. The next step is to infold the material with respect to the bottom, and to unite the bottom and the cylindrical material at one end portion of the latter, thus resultin in an embryo container consisting of a cyllndrical body and a bottom closure united thereto. Such embryo container is now, preferably, transferred'to a forming mandrel, the latter. cooperating with suitable mechanism which imparts a taper to'an end portion of the cylindrical body so as to produce a desired taper thereon, The material of the cylindrical body is crimped for producing the tapering neck on the container, and for confining the crimped material in place so as to overcome any disarrangement of the crimps, particularly at the neck of the bottle, a band is applied exteriorly to the crimped material, preferably by winding or coiling a strip or web of material around the crimps at the neck adjacent to the mouth or outlet of the bottle.

The container producedaccording to the specified procedure is characterized by several features of novelty as follows :-,First, the crimps in the neck portion. extend lengthwise of the container, they are taperthe body and the closure for one end of said ing so as to increase in depth from the of which is within the chamber of the neck or body, thus leaving the external surface of the container comparatively smooth and free from projections; second, the crimped mined relation so as to prejlgide any breaking down of the mouth p0 ion and which mouth portion presents a smooth external surface adapted for the reception of a suitable cap or closure, and, third, 'the bottom andthe cylindrical body are permanently united in a way to protect and reinforce the bottom by the material of the container and to secure a liquid tight jointbetween said bottom and the container. L

Other features and advantages of the invention will appear from the following detailed description.

In the drawings, Figure 1 is a plan view, partly in section, illustrating the first step in the formation of the container which consists in positioning a closure in operative relation to an end faceof a forming mandrel. Figs. 2 and 3 are plan and side views illustrating the second step in the formation of the container which consists in wrapping a length of paper around the forming man drel and the closure positioned againstthe end face of said forming mandrel. Fig. 4 is a sectional, plan view illustrating the third step which consists in uniting an end portion of the container body to a closure for .said container body; -Fig. 5 is a plan view,

and end l elevation, respectively, illustrating the fifth step which consists in winding a neck band aroundthe crimped neck portion of the container body. Fig. 8 is a side elevation of a: complete container embodying the invention. Fig. 9' is a plan view of the container shown in Fig. 8. Fig. 10 is a horizontal section on the line 1010 of Fig. 8.

In carrying the invention into practice, I

employ a rotatable forming mandrel A to which is fed the material adapted to form 1 body, thus resulting in a container, the body and closure of which are united so as to result in a unitary structure. The first step consists in positioning the closure against I said closure disk is substantially flush with the cylindrical surface of the forming man-- drel. The closure having been positioned with respect to the mandrel as described, I

. next proceed to form thec-ontainer body,

for which purpose a length of paper C 1s supplied to the mandrel, whereupon said mandrel is rotated soas to wrap orcoil the paper 6 upon the mandrel and the flange of the closure. The paper or other fibrous ma terial may be supplied from a Web or in sheets, it being preferred'to feed the sheets successively to the forming mandrel. The

' paper is coated with an adhesive substance along'one side margin, as at c, and one edge margin, as at c.

I This coating may be supplied to the-paper and dried thereon in'the operation of preparing the paper for use the machine, or, if desired, the adhesive'coating at .0 '0 -may. be supplied in a wet condition and by suitable devices.

during the operation (if feeding the paper to the forming mandrel. When' prepared sheets of paper with dried adhesive coatings thereon are applied it becomes necessary to molsten the adhesive coatings before or during the operation of feeding the sheet to the forming mandrel, and when the paper is coiled upon the mandrel the convolutions of the paper will adhere to each other, theinnermost layer of paper adhering to the flange b of the closure.

Having wrapped the paper C around the mandrel and the closure, as illustrated in Figs. 2 and 3, the next step is to infold a protruding portion of the paper around the gummed margin 0 thereof into. contact with the inner surface of the flange b of the closure, substantiall as shown in Fig. 4. This is per formed by suitable mechanism during the rotation of the mandrel, said mechanism bemg in the form of a bending roll having one or'more flanges operating on the material to press the gummed margin 0 into contact with the 1nner surface offlange 6, whereby the paper composing the body of the container is united to the flange b of closure B both exteriorly and interiorly of said flange.

Subsequent to the operation of forming the material into a cylindrical body and' uniting the end closure to said cylindrical body the embryo container is transferred from forming mandrel A to a crimping mandrel D, illustrated more particularly in Figs. 5 and 6 The embryo container is transferred by any suitable means from mandrel A to mandrel D soas to assume the Serial No. 801,820, filed even date herewith,

for the purpose of crimping the material,

thus resulting in a tapering neck at an end portion of the container. As shown, the crimping mandrel D is tapering at one end, as at d, and is provided with a series of longitudinal slots d. With this mandrel cooperates a series ofexteriorly positioned crimping fingers which act upon the cylindrical' end portion of the container body soas to force the material into the slots (Z,

container body. constituting the ribs 6 are positioned interiorly of the container, and they extend from the cylindrical part of the container body to the neck portion thereof. The material is crimped so. as to'impart the desired itaper to the container, and this material at one end thereof is formed arounda collar D of the crimping mandrel, so as to produce a substantially cylindrical mouth portion at the end of the tapering bottle neck. Obviously, the crimped material will not retain its shape unless means are provided for binding the crimped material firmly in position, and to this end a neck band is applied exteriorly to the crimped material. It is preferred to feed a length or strip of narrow paper E to the mouth portion of me container, and to wind this strip or length of material exteriorly upon the crimped material at said mouth portion, thereby prothereby producing a series of ribs 6 on the The folds of the material" ducing a neck band which is firmly united quent to the application of the neck band,

mandrel D is collapsed in order to withdraw it from contact with the container, and the latter is ejected by suitable mechanism from the mandrel while the latter is in a collapsed state.

The procedure herein described results in a container, illustrated more particularly in Figs. 8, 9 and 10 of the drawings, the bottom of said container being closed by the flanged disk B which is united firmly to the material ,of the body so as to secure a liquidtight joint therewith. The container F consists of a cylindricalbody, the neck portion 7 of which is tapered by crimping the material so as to produce the webs e, the latter being in the form of ribs positioned interiorly of the bottle. The webs or ribs e extend lengthwise of the tapering neck portion of the bottle and they increase in depth from the.

cylindrical part of the body'to the mouth portion of the bottle, the material of the crimps at one end thereof being pressed firmly upon the collar -D of the forming mandrel so that these compressed portions of the crimped material constituting the mouth of the bottle will be united firmly together by the neck band E, the latter being formed by winding the length of paper E around the crimped material next to the mouth of the bottl It is evidefit that the bottle may be produced rapidly and economically, for the reason that the several operations are performed by automatic machinery.

Subsequent to the completion of the bottle or other container, it is manipulated or treated to render it waterproof, such, for example, as by coating the bottle either interiorly or exteriorly, or both, with paraffin or other agents.

Having thus fully described, the invention, what I claim as new, and desire to secure by Letters Patent is 1. The method of making paper bottles which consists in positioning a flanged bottom member into contact with a solid end face of a rotatable non-collapsible forming mandrel, feeding a web of paper to said mandrel, rotating the mandrel and the bottom' member simultaneously to wind the paper web upon the mandrel and the flange of the bottom member,'infolding the coiled web interiorly of the flange on said bottom member removing the resulting embryo bottle from the forming mandrel, positioning sa d embryo container upon a collapsible 1 'CIlIIlP-fOIIIllIlg mandrel, producing crimps which consists in winding a web of paper upon a rigid non-collapsible forming mandrel and simultaneously attaching a bottom closure to an end portion of the coiled Web so as to produce on said forming mandrel an embryo bottle, then removing the embryo bottle from said forming mandrel, then inserting a collapsible crimping mandrel into the open end of the embryo paper bottle, then producing longitudinal crimps in the coiled material, then compacting said crimped material at the open end of the embryo bottle and winding exteriorly thereon a narrowband, and finally ejecting the completed bottle from said crimping material.

3. The method of producing shaped containers from fibrous material which consists in winding a web of paper upon a forming mandrel and at the same time uniting an end closure to the resulting container body, removing the embryo container from the forming mandrel and positioning the same upon a crimping mandrel, crimping the material for definite distances lengthwise of the embryo container while present upon the crimping mandrel so as to impart a taper to the neck portion of the container, and binding the crimped material by applying tapering a binder externally to the mouth portion of mandrel and at the same time uniting a closure to an end portion of the resulting container body, removing the embryo container from the forming mandrel and positioning the same upon a crimping mandrel, crimping the material of the container body and imparting a taper to the neck portion thereof by folding said material on predetermined lines and lengthwise of said body so as to produce ribs which increase in depth toward the mouth of the container and are posi tioned inwardly with respect tosaid container, and applying a binder externally to the crimped material at the mouth portion of the container. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. I I

WILLIAM F. REGAN. Witnesses:

H. I. BERNHARD, M. C. RODRIGUEZ.

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