US1711337A - Capping milk bottles and other containers - Google Patents

Description

April 30, 1929. w. L. WRIGHT CAPPING MILK BOTTLES AND OTHER CONTQINERS Original Filed July 12, 1923 Patented Apr. 30, 1929.

PATENT OFFICE.

'WILBUR L. WRIGHT, OF FULTON, NEW YORK.

CAPPING MILK BOTTLES AND'OTHER CONTAINERS.

Original application filed July 12, 1923, Serial No. 650,980. Divided and this application filed September 15 1926. Serial No. 135,668.

This case constitutes a division of my application filed July 12, 1923, Ser. No. 650,980, now Patent No. 1,603,057, dated October 12, 1926; and the instant case is devoted to a particular species, under the generic invention of my said patent; a species that is not specifically claimed by my patent although sufficiently disclosed thereby to enable the chemist tov practice the same.

The object of the instant invention is to utilize my discovery that so-called insoluble soaps or what I herein term, synthetic Waxes, when combined with container closure disks, constitute desirable binders, and hence my invention consists in a paper or like material closure or hood cap disk that embodies a so-called insoluble soap as a binder.

'Referring to the accompanying drawings, forming a part hereof Fig. 1 shows a hood cap disk, to be molded over a container mouth to form a hood cap or cover thereon in accordance with my invention.

Fig. 2 shows in plan a paper disk of my invention, to be pressed into hood form on a container mouth, the sheet paper being impregnated throu bout with the binder.

Fig. 3 more ordess diagrammatically illus-, trates in side elevation, a bottle mouth, a forming head, and in edge view a disk of Figs. 1 or 2 in heated condition to be pressed down and molded on the bottle month by any suitable head diagrammatically illustrated.

Fig. 4 is a side elevation of a bottle head or mouth anda paper hood cap secured thereon in accordance with my invention.

Fig. 5 shows in side elevation, a paper or other sheet fibrous material cap possessing the characteristics of and embodying my invention, and in skirted orflared hood form for application in such form to container mouths for securing thereon, when softened by'heat, by contraction under the exterior container mouth rim.-

In carrying out my invention, flat sheet disks 1 are punched or stamped from sheet material suc as paper or other fibrous material suitable for the uses to which the completed disks are to be applied, such as exteriorly capping the mouths of containers. These flat disks 1 are of a size to form a skirted or flanged cover or hood cap, such as 3, that will exteriorly cover and protect the mouth ortion of a container, such as bottle 2, and fit under the shoulder formed by the annular exterior rim 2*, of the mouth portion'thereof, or otherwise to secure the cap on the bottle mouth by contraction into a depression or under a projection at the exterior of the neck.

It is a characteristic of my invention, that by embodying in the disk, a binder of certain characteristics, I can form each disk of a single ply or layer of thin inexpensive fibrous material such as certain commercial papers or s0-called pulp boards, without building up special material layer by layer or otherwise constructing the same in laminated or multi-ply form to structurally include therein layers of one or more materials. I have discovered that a sheet of single-ply or comparatively thin flexible commercial paper of one thickness, when carrying any one or more of several binder substances, meeting certain requirements, distributed throughout such paper, or if only at the portions thereof that are to perform securing or holding functions, will possess certain characteristics necessary for hood cap purposes, under my invention. For instance, sheet fibrous material suitable for hood cap purposes, impregnated in whole or in .part with a binder that embodies or is composed of any one of certain synthetic waxes or insoluble soaps, possesses characteristics within the spirit and scope of my invention.

I find that sheet paper material th'atembodies any one or more of such substances as a binder remains stiif or set, at the portions treated therewith, at atmospheric or climatic temperatures, and becomes soft, pliable or moldable when heated to the necessary high temperatures to fuse or melt the binder in the paper, is sanitary for use on or in connection with food products, is approximately insoluble in water, is without objectionable odor when cool or set, does not attract vermin or insects, is non-poisonous, does not objectionably foul glass surfaces of the cap forming or applying head, is not seriously objectionable in color, and is of quick setting characteristics.

a The single ply or thin paper material disks or caps can be treated with the insoluble soap binders hereinbefore mentioned, by dippin or otherwise applying the hot liquid melted binder to the paper to thoroughly im regnate the same. I prefer to impregnate the paper or sheet fibrous material with the molten binder and drain or otherwise remove surplus binder from the surface of the paper. As at present advised by experience, I Wish to avoid excess exterior coatings ofthe bind er on the surfaces of the paper but Wish the binder to fill or impregnate the body or interior of the paper, as the excess surface coatings are but surplusage and when the paper is heated to or above the binder-melting point such surplus surface coatings are liable to flow therefrom to adjacent or contacting ob- 'ects.

J The paper disks 1, can be impregnated and thereby rendered normally stifi' at their edge portions only, see 1, Fig. 1, or can be rendered normally stiff throughout by more or less complete impregnation, as indicated by the disk 1, of Fig. 2.

In both forms, however, the disk when softened by heating to or above the melting point of the binder, is molded, shaped or pressed on the bottle mouth into hood cap form, by any suitable forming, pressing or Spinning head 5, diagrammatically indicated in the drawings. The hood cap thus formed on the bottle mouth from the flat disk 1 when softened by heat, has a usually fiat central portion .7) (Whereon' usually appear certain exposed display indicia, legends or advertising) and an annular depending skirt or flange a that is contracted at (Z under the exterior rim of the bottle mouth, and that quickly sets and becomes stiff or more or less rigid at climatic or atmospheric temperatures to secure or look the hood cap on the bottle mouth. The skirt or flange thus provides the self securing or looking portion at of the hood cover, and it is essential that at least the portion of the paper disk 1 that is to form this part d of the hood cap, be impregnated with the binder.

The bottlers will purchase these fiat treated paper disks, and will be equipped with proper implements or machines for molding the fiat disks, when softened by heat, directly on the bottle mouths to form the hood caps thereon, in such manner that said caps remain locked or secured on the bottle mouths by the stiff or rigid contracted flanges of the caps. The softened portions of the caps, quickly cool to atmospheric temperatures and quickly become set and rigid sothat removal of the cap preferably requires expansion, rupture or tearing of the flange thereof, although this can be accomplished by the fingers without the use of special or other tools.

Paper or other sheet fibrous material impregnated with or embodying various insoluble soaps or so-called synthetic waxes, possesses the characteristics of, and are within the scope of my invention. Such insoluble soaps are solids at climatic temperatures and have melting points around 270 I. more or less, and can be composed of hard high melting point quick setting waxes, among others,

such as Montan, carnauba, or candelilla, or

stearic acid, and other ingredients. For instance, I find that compositions about as follows are suitable for the purposes of my invention, namely (1) Montan wax 500 g. Stcaric acid 270 g. Soda ash. 15% g. Magnesium acetate 17 g. Caustic aluminum solution about For use for my purposes, this composition is mixed with paraflin oil in the proportion of about 20 parts of composition to 1 part oil.

(2) Carnauba Wax 420 g. Stearic acid 420 g. Magnesium acetate 15 g.

Caustic aluminum solution about This composition is also mixed with paraflin oilin about the same proportions as where composition (1) 1s used.

(3) Candelilla wax 160 g. Stearic acid 640 g. Magnesium acetate 10 g. Paraffin 48 g. Caustic aluminum solution about 37 /2 R6 120 c. c.

The proportions of the ingredients of the*- several compositions can be varied and also equivalent ingredlents can be employed 111 each composition, and I do not wish tohmit my invention to the compositions as outlined but Wish to cover and include sheet material possessing the characteristics of my invention whatever insoluble soap binders suitable for the purpose, may be included or embodied therein.

In the compositions indicated caustic solutions of other metals than aluminum can be employed to form an insoluble stearate 0r palmitate (for example, such as lead).

Paper or other fibrous sheet material of my invention hereinbefore described possessing the characteristics substantially as pointed out, can be put on the market in various forms, and shapes for container capping and other purposes, and I do not wish to limit all features ofmy invention to the flat disk form, hereinbefore described.

For instance, in Fig. 5, I show such sheet flared hood cap form, for the market. These caps 7, of Fig. 5 can be prepared for the market from the flat disks of-Figs. 1 or 2, either impregnated with the binder at the lower edge or securing portions of their skirts or impregnated throughout. These flared skirted caps are usually pressed or drawn by dies from commercial sheet paper such as pulp board, as hereinbefore described, and then impregnated with the binder hereinbefore mentioned, as described in connection with the flat disks. Surplus or surface binder coating is preferably removed from the skirted caps, before they are ready for packing and shipment.

These skirted binder carrying caps, are

flared so that they can be nested to reduce the space required for packing, and also to facilitate the application thereof to bottle mouths. These flared skirted caps are softened by heat before or after they are slipped onto the bottle mouths, and while so softened, any suitable means is utilized to contract the securing impregnated portions of the cap skirts, to fasten and secure the caps on the bottle months, by the cooling and setting thereof, as hereinbefore described in connection with the flat binder impregnated disks.

What I claim is:

1. Asheet paper disk for bottle mouth hood at least that portion that forms the securm part of the cap skirt, embodying an insolu le soap or synthetic wax.

2. A sheet paper disk for bottle mouth hood capping havmg at least that portion that forms the securing part of the cap skirt, em-

capping having bodying an insoluble soap including stearic acid and a high melting point hard wax.

3. A paper hood cap carrying a water-insoluble soap as a binding medium.

4. A paper hood cap adapted to be bound about a glass bottle head, said cap carrying a metallic-organic composition as a binder which when softened by heating will quickly set to hold the cap in place on the container.

5. A paper hood cap carrying as a binder a water insoluble soap and a hard wax..

6. A paper hood cap for a glass container carrying a binder containing a fatty acid and basic material in at least partial combination.

September, 1926.

WILBUR L. WRIGHT;

CERTIFICATE or CORRECTION.

Patent No. 1,111,337.

WILB/UR L.-

Granted April 30, 1929, to

WRIGHT.

it is hereby certified that the above numbered patent was erroneously issued to the inventor said "Wright". whereas said of Fulton, N. Y.,

"Oswego Falls Corporation.

patent should have been issued to a Corporation of ,New York", said corporation being assigneeof the "entire interest in said invention, as shown by the records of assignments in this office; and that the said Letters Patent should .be read with this correction therein that thesame may conform to the record of 4 the case in the Patent Office;

Signed'and sealed this 28thday of May, A, D. 1929.

(Seal) M. J. Moore,

Acting Commissioner of Patents.

Y., this third day of CERTIFICATE OF CORRECTION.

Patent No. 1,7ll,337. Granted April 30, 1929, to

WILBUR L. WRIGHT.

it is hereby certified that the above numbered patent was erroneously issued to the inventor said "Wright", whereas said patent should have been issued to "Oswego Falls Corporation, of Fulton, N. Y., a Corporation of New York", said corporation being assignee of the entire interest in said invention, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 28th day of May, A. D. 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents.

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