US1024894A - Carafe and stopper. - Google Patents

Description

A HBINEMA-NN.

GARAFE AND STOPPER.

APPLICATION FILED 'JULY 18,1911.

Patented Apr. 30, 1912.

COLUMBIA PLANmRAPlLw WASHINOTO UNITED STATES PATENT OFFICE.

ALBERT HEINEMANN, OF BERLIN, GERMANY.

CARAFE AND STOPPER.

To all whom it may concern:

Be it known that I, ALBERT HEINEMANN, a citizen of the Empire of Germany, residing at Berlin, in the Empire of Germany, have invented a new and useful Carafe and Stopper, of which the following is a specification.

My invention relates to glass carafes and glass stoppers of that kind, in which a rounded thread is provided at the glass stopper and in the neck of the glass bottle, and a packing ring is placed between the collar of the carafe and a corresponding collar at the stopper.

In order to procure a packing ring free from all hygienic objection, this ring should not be made of india rubber but must consist of cork, since india rubber can not be subjected to the pasteurization and also in the course of the pasteurization gives a disagreeable taste to the contents of the bottle.

With the known closures comprising stoppers and wire springs, which are in general use in Germany, it is not possible to obtain a perfect air-tightness by means of a cork ring, since this ring, although possessing in its softened state a suflicient elasticity, dries up within a short time so strongly as to no longer tighten the stopper.

ith the above carafes and stoppers having a rounded thread it would be possible to employ cork as a packing material, provided that care be taken to prevent the cork ring fro-m sticking to the neck of the bottle on the stopper being unscrewed. However, hitherto with such bottles no cork ring has ever been employed, but an india rubber ring has invariably been used, chiefly for the reason, that when the cork ring has been so tightly compressed during the screwing home of the stopper as to afiord a safe tightness even after drying-up, it will almost invariably adhere to the neck of the bottle during the unscrewing of the stopper, more particularly if the contents are adhesive, such as beer and the like.

The device of preventing the india rubber ring from turning or shifting by means of grooves at the stopper above the rounded thread can not be applied to cork rings for the reason, that, when the cork ring has dried up and the stopper is unscrewed, the cork ring is very apt to get off the grooves, even if the latter are sharp, because the mass of cork contracts during drying and Specification of Letters Patent.

Application filed July 18, 1911.

Patented Apr. 30, 1912.

Serial No. 639,080.

consequently the space around the ring in creases. Then the cork ring is apt to adhere to the neck of the carafe or bottle, which under all circumstances must be avoided.

In order to remove these drawbacks, one improvement according to my invention consists in providing a means, whereby during the opening of the carafe or bottle the cork ring is prevented from leaving the screwed stopper. This means is a second screw-thread for engaging the cork ring and disposed on the stopper between the main screw-thread and the collar, the pitch of the second thread being opposite to that of the main thread. Then during the unscrewing of the stopper the cork ring can not get 01f but is pressed more strongly against the collar by screwing.

Another improvement consists in providing the neck of the carafe or bottle at the upper end with an inner annular recess, in which the cork ring at the stopper is made to fit. This inner annular recess may also be provided in the collar of the stopper or in each of the two collars.

I will now proceed to describe my invention with reference to the accompanying drawing, in which Figure 1 is an elevation of an improved glass stopper, the cork ring in its natural state being shown in cross section, Fig. 2 is an elevation of an improved glass carafe with the improved stopper, an intermediate part of the neck being broken away and the upper portion of the neck and the compressed cork ring being shown in section; and Figs. 3 and 4 are vertical sectional views of two modified forms of the invention.

Similar letters of reference refer to similar parts in both views.

The glass carafe a has in its neck I) a rounded female screw-thread I) and above this an annular recess g. The glass stopper (Z has a rounded main male screw-thread b, which loosely fits the female screwthread I) in the neck I) of the'b'ot-tle a as usual. Above the main thread I)" the stopper (Z is provided with a second screwthread 0 of a slightly larger diameter and having a pitch opposite to that of the main thread Z). The height of the second thread 0 is nearly equal to the thickness of the employed cork ring f in its compressed state. As this thickness is comparatively small,

preferably the pitch of the thread 0 is made smaller than that of the main thread 6. It is an advantage to make the second thread angular in opposition to the rounded main thread 7). The cork ring 1 is first boiled and then screwed on the second thread 0, until it closely bears against the collar it. As can be seen from Fig. 1, the

packing ring f of cork is in its natural state thicker than the height of the thread 0. On screwing the stopper (Z into the neck 5, the cork ring f fitting the annular recess 9 will be compressed, as is shown at Fig. 2. The walls of the recess 9 in the collar 0 serve as an abutment for the packing ring f and prevent the latter from all shifting during the screwing home of the stopper (Z. When the improved stopper is unscrewed, the cork ring f has the tendency of further screwing on the second thread 0 and pressing itself against the collar ii, of the stopper (Z, so that it loosens from the collar 6 of the neck and adheres to that of the stopper.

The improved glass carafe and glass stopper present the important advantage, thatthey can be at once subjected to the pasteurization. This is not possible with ordinary glass carafes and glass stoppers, between which india rubber packing rings are inserted. If such bottles are filled with beer, their stoppers with india rubber rings re quire to be replaced by ordinary cork stoppers for the pasteurization, since at the higher tem 'ieratures employed during this process the india rubber rings would tear,

and moreover the hot india rubber wouldgive a still more disagreeable taste to the beer. Besides this the pasteurization can not be carried out without auxiliary devices, such as wire slings or iron clamps. l/Vhen an ordinary glass bottle filled with beer or the like and closed with a screwed glass stopper and a cork insertion between the collars of both the bottle neck and the stop per is subjected to the pasteurization, the high temperature and the inner pressure of the contents of the bottle will cause the cork insertion to be partly shifted and squeezed out. WVith the improved glass carafe and glass stopper according to my invention, on the contrary, all shifting and squeezing out of the cork ring is rendered impossible by the annular recess in the neck, in which the cork ring is compressed. The two large collars of the bottle neck and the stopper are brought into close proximity of one another by the screwing home of the stopper, so that the compressed cork ring is, so

Vhile hitherto a screwed glass stopper could be tightened only by means of indiarubber and further the pasteurization of beer and other beverages could be efiected only in ordinary glass bottles with cork stoppers, the invention renders it possible to employ the hygienically better cork and to effect the pasteurization in glass bottles with screwed glass stoppers, and all danger of any shifting or squeezing out of the cork ring under the action of the inner pressure, or of any leakiness of the closure or of any adhesion of the cork ring to the collar of the bottle neck is avoided.

I claim:

1. The combination with a glass bottle having a collar at the upper end of its neck and a rounded female thread in its neck, of a glass stopper having a collar, a rounded male thread and an opposite thread between the collar and the male thread, and a cork ring fitting the opposite thread of said stopper, the two collars being adapted to compress said cork ring.

2. The combination with a glass bottle having a collar at the upper end of its neck, and a rounded female thread in its neck, of a glass stopper having a collar, a rounded male thread and an opposite thread between the collar and the male thread, and a cork ring fitting the opposite thread of said stopper there being a recess adapted to receive the cork ring, the two collars being adapted to compress said cork ring.

3. The combination with a glass bottle having a collar at the upper end of its neck and a rounded female thread in its neck, of a glass stopper having a collar with an inner annular recess, a rounded male thread and an opposite thread between the male thread and the bottom of the recess, and a cork ring fitting the opposite thread and the annular recess of said stopper, the two collars being adapted to compress said cork ring.

ALBERT HEINEMANN.

Witnesses:

WOLDEMAR HAUPT, HENRY HASPER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

\\ Washington, D. C.

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