US1478141A - Metal top for sealing glass containers - Google Patents

Description

Dec 118 1923.

M. P. ORR

METAL TOP FOR SEALING GLASS CONTAINERS Filed May 4 1.922

STATES intern earaar oaaica.

MARK P. ORR, OF NORWOOD, OHIO, ASSIGNOR TO THE SECURITY METAL PRODUCTS.

COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

METAL TOP FOR SEALING- GLASS CONTAINERS.

Application filed May 4, 1922. Serial No. 558,362.

To all whom it may concern Be it known that I, MARK P. ORR, a citizen of the United States, residing at Norwood,

in the county of Hamilton and State of Ohio, have invented new and useful Improvements in Metal Tops for Sealing Glass Containers, of which the following is a specification.

My invention relates to sealing devices and more particularly to metal tops for use on jelly glasses, packing tumblers and similar receptacles, which are now used in great variety in preparing foods for market.

The principal object of the invention is to provide a sealing device adapted tobe secured in position on the glass tumbler or other receptacle by merely forcing the flanged edge over the side walls of the receptacle, the sealing cap being held in position by frictional engagement of certain inwardly extending portions of said flange with the outer wall of the top of the jar and to make secure contact for holding therewith even though such jar is not a true cylinder. With this end in view, the flange is provided with a plurality of large vertical corrugations, which may be uniform or otherwise as desired, to secure the attainment of the object mentioned. 1

Another object of the invention is to so form the top that it will rest evenly upon the edge of the tumbler or other container before being forced downwardly into sealing osition. The importance of this object wi l he realized when it is remembered that these receptacles and tops are handled very rapidly in canning factories and the tops are pressed into position by machinery.

Another object of my invention is to make it easy for the housewife to remove the top without danger of breaking off particles of the glass tumbler as it is difliculttokeep such particles out of the contents of the tumblers or remove theni when once in.

Hermetic sealing is accomplished by the use of the gasket interposed between the edge of the tumbler and the inside surface of the top in the usual manner.

My invention is illustrated in the accompanying drawings in which Figure 1 is an elevation of an ordinary tumbler or jelly glass with the top pressed down into sealing position;

Fig. 2, a detail, is a vertical axial section thru a part of the glass and the contiguous portion of the top;

r Fig. 3, is a horizontal section thru top and glass on the line 3-3 of Fig. 1; and

Fig. 4, is a modification of the top showing inwardly extending corrugations of contact depth and intervening ones of less depth, only partof the top being shown- Referring now to the, drawings: G is a glass, the outer surface of whose wall at the top is designated as Against this surface the inwardly turned corrugations 'a of the top A bear, when the top is pressed down into the position shown in the drawings. The rim of the top is provided near its lower edge with a cylindrical portion g adapted to fit loosely over the top edge 9 of the tumbler so that the top will rest upon the sloping portions a? of the inwardly extending corrugations a before the top is pressed into position. A gasket B is interposed between the topedge 91 of the glass and the under side of the surface of the top to effect an hermetic seal. The corrugations are spaced a substantial distance apart so that when expanded by pressing the top into position, the resilience of the metal will cause a strong gripping effect of the corrugations a upon the portion g of the glass wall holding the top very securely in position, even tho the top of the tumbler should not be a true cylinder.

Sometimes the containersvary considerably. from true cylindrical form and in such cases I have found it desirable to obtain greater adjustability of the rim of the top by making some of the corrugations only, adapted to do the gripping. In carrying out this idea, I found that the structure 'shown in Fig. 4 is effective in which structure every other one of the inwardly-turned corrugations acts as a gripping element but the intervening ones do not touch the wall of the glass unless the receptacle should be very much out of true. The lesser in-turned corrugations a are not intended to touchthe glass but by greater expansion of the rim due to the spring effect of these corrugations, to permit greater adaptability of the rim in seating the corrugations or against the wall g.

By making the corrugations relatively large and projecting outwardly beyond the general cylindrical surface of the rim as shown in my improvement, the housewife can tap the outwardly-turned corrugations venient instrument, expanding the rim sufficiently to .destroy its gripping effect and permitting its easy removal from the tumbler; and as these corrugations stand up a substantial distance from the surface of the glass, there is no danger of breaking off slivers of glass and thus endangering consumers of the food product in the container. It will be noticed also that the corrugations extend only over a portion of ,the rim well below the top edge of the glass so that even if the housewife should use less than ordinary care in expanding the rim for removal, there would still be no danger of fracturing the glass.

As used in factories, the tumblers are filled with the food product, put upon an endless conveyor and the tops placed upon the containers as they pass. These tops will rest evenly with the sloping edges 0, of the in-turned corrugations (1 upon the outer edge of the tops 9 of the tumbler so that when the tumblers are brought squarely under the machine whose plunger forces the tops into sealing position, there will be no slippage or cantin resultin in imperfectly sealed tops or bro en tumb ers.

I do not wish to be restricted to the precise form of the top shown, but conceive as within the scope of my invention any sealing top readable upon the claims which will be finally allowed on this'application.

I claim as my invention and desire to secure by Letters Patent of the United States:

1. A metal tumbler top having in combination a top portion, a unitary depending rim, large verticalg corrugations some projecting inwardly and others outwardly on.

said mm, the lower edges of said corrugations beveled, and the diameter of the rim of such size as to adapt it to cause the inturned corrugations to grip the outer wall of the tumbler top so as to hold the top to the tumbler when pressed into sealing position, said corrugations being so shaped and proportioned that upon flattening the outwardly projecting corrugations the gripping action of the rim is so relaxed as to permit ready removal of the top.

2. A metal tumbler top having in combination a top portion, a unitary depending rim, large vertical corrugations some projecting inwardly and others outwardly on said rim, the lower edges of said corrugations beveled, thebottom portion of said rim forming a cylindrical flange of somewhat greater diameter than that formed by the edges of the in-turned corrugations, and the diameter of the rim of such size as to adapt it to cause the in-turned corrugations to grip the outer wall of the tumbler top-so as to 1 cause the top to be held-securely to the tumbler when pressed into sealing position, said corrugations being so shaped and proportioned that upon-flattening the outwardly projecting corrugations the gripping action of the rim is so relaxed as to permit ready removal of the top.

3. A tumbler top having in combination a top portion, a unitary depending rim, large vertical corrugations, part of the inturned corrugations shallower than others, the lower edges of said in-turned corrugations beveled and the diameter of the rim of such size as to adapt it to cause the deeper in-turned corrugations to grip the outer wall of the tumbler top so as to cause the top to be held securely to the tumbler when pressed into sealing position, said corrugations being so shaped and proportioned that upon fiattening the outwardly projecting corrugat1ons the gripping action of the rim is so relaxed as to permit ready removal of the top.

4. A tumbler top having in'combination a top portion, a unitary depending rim, large vertical corrugations, every other one of the in-turned corrugations shallower than those in between, the lower edges of said deeper in-turned corrugations beveled, and the diameter of the rim of such size as toadapt it to cause the deeper in-turned corrugations to grip the outer wall of the tumbler top so -as to cause the top to be held securely to the tumbler when pressed into sealing position, said corrugations being so shaped and proportioned that upon flattenin the outwardly projecting corrugations the gripping action of the rim is so relaxed as to permit ready removal of the top.

5. A metal tumbler top having in combination a top portion, a unitary depending rim, large corrugations some inwardly and others outwardly extending on said rim, the lower edges of the inwardly extending corrugations beveled, the outwardly extending corrugations projecting beyond the general cylindrical surface of the rim and the diameter of the rim of such size as to' adapt it to cause the in-turned corrugations to grip the outer wall of the tumbler top so as to hold the top to the tumbler when pressed into sealing position, said corrugations being so shaped and proportioned that upon flattening the outwardly projecting corrugations the gripping action of the rim is so relaxed as to permit ready removal of the top.

6. In combination with a metal tumbler top, an unbroken depending rim with vertical outwardly extending corrugations projecting beyond the general cylindrical surface of the rim, below which corrugation is 1 an uncorrugated portion of the rim.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

MARK P. ORR. Witnesses:

A. Ausrm Connor, CARL PHAnns.

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