US926403A - Bottle-stopper. - Google Patents

Description

E. GOLTSTEIN.

BOTTLE STOPPER.

APPLICATION FILED JULY 17, 1903.`

Patented June 29, 1909.

l WITNESSES By YIW )7M ATTORNEYS EWALD GoLTs'rEN, or COLOGNE, GERMANY.

BOVTTLE-STOPPER.

No. 926,403. l

Specification of Letters Patent.

Patentedrune 29, 1909.

. Application filed July 17, 12203. Serial Nc. 166,037.

T o all 'whom 'it may concern:

' Be it known that I, EWALD GoL'rs'rnIN, a subject ofthe German Emperor, and resident ofCologne, Germany, have invented certain new and useful Im rovements inl Bottle` Stoppers, of'which t e Ifollowing is a specificatlon.v l

My inventionirelates to the closing and.

sealing vof receptacles such-as bottles and `jars, by means of external metallic. caps or. capsules -whieh are crimped or compressed around the neck-of the rece tacle 'and into beneath shoul ers or flanges grooves or thereon.

The object of my invention is to providev a capsule which Without any separate strengthenin device shall be capable of being appliec to a receptacle so as to form a closure capable of withstanding high internal pressure and'which'may yet be readily torn "oil or removed by the hand alone, without resorting either to weakening the capsule by slits or weakened lines orto. the use of sepa-v rate instruments or tools for opening.

Two specific embodiments of my invention are lshown in the accompanying drawings, in which-v Figure 1 is a vertical section of one form of my improved ca sule applied' to the upper end of a receptac e but not yet in the sealmgosition; Fig.- 2 is a plan view of the capsule; ig. 3 shows thesaid capsule on the receptacle in the sealing position; and Fig. 4 is a vertical section showing another form of my invention.l

The neck 1 ofthe receptacle is formedon' y' its outersurfacewith a bead 2 and a shoulderV entering portion 4 which has an importantfunction in connection with the capsule- 5 as will be explained presently.. The capsule ismade of a soft sheet metal such as aluminum'.

I s thin enough to'be readil torn by the hand without being previousy weakened and without theusejof tools. Thei top ofthe capsule presses on' a suitable packing such as AFig. 4.' In theconstmctions illustrated by. 50

thering 6 in Figs. 1 and 3, or thed'iskin the. drawings, the.top,of the capsule is cut through so asto form an integral tongue 7 free at one end and attached to the-capsule at the other.v This tongue maybe lifted by the fingers and-.pulled f. ownward across 'the crimping'flange for rupturing and removing the capsule .after sealing., With this construction', vinasmuch as the top of .thefcapsule 4bead lor.

has been cut through entirely, itis advisable to interpose a plate S between the capsule and the packing, unless the packing is in thc form of a disk as in Fig. 4 in .which event for certain -purposes the plate S may be :lispensed. with. It is 'important that the de- Y ending flange 9 of the capsule should be ong enough so that after sealing it will extend below the groove or rentering portion 4 so as to forma skirt or band which not onlyincreases the rictional resistance'of the capsule, but also greatly stiHens it.

In the `use of my invention the capsule 5, the plate 8 "and the packing 6 or 6 may be first assembled and then applied to. the receptacle. Pressure may then be' applied for bringing the capsule irmly against t e packing (orits covering plate S) and against the receptacle, into the sealing position illustrated in Fig. 3 (as to one form of my invention). For thus pressing thecapsule into sealing osition, I prefer to employ a paratus' of t e character shown in my ettcrs Patent No. 743,636 dated November .10, 1903. By means of such apparatus, a capsule having the described characteristics-may be pressed' tightly downward against the receptacle'for making an airtightA closure and then secured in such position by ressing the depending flange inwardly into ocking and frictional engagement with thereceptacle.

The pressure applied lagainst the flange of the-capsule by such an apparatus is ver great and. forces the soft metal into suci tight and intimate contact with the rece tacle as to cause it to tightly hug and close y conform with every surface irregularity thereon. The flange is not only pressed into any groove or around and beneath anys ioulder purposelyformed around the receptaole'ncck for engagement with the capsule, but is ,furthermore forced into every little crevice and around every tiny pro'ec- Y' tion or lmperfection occurring on the sur acc of thereceptaclc." Thus a great. number of minute locking en agements. are formed between the ca su e and the receptacle,

many of them a most imperceptible to the naked eye,l but in the aggregate sulicient to greatly strengthen the capsules grip on thc receptacle and serving also to materlally stien the yielding material from which the capsule is formed. Pressing the Hangs ofthe capsule under the shoulder 3 and into the l' groove-4h01; only )roducesa tight loclcrng 4 engagement, but t 1e well-defined circum-v placementby internal pressure.

ferential rim or groove which is thus formed' the groove r shoulderaround the receptacle in the flange further tends to stiffen the capsule and so increase its eiiiciency against dis- The, factors which contribute to thewonderful' eiciency of my improved capsule, made as it is of a soft readily-torn material, and

'which render unnecessaryv theuse of sepy varate strengthening Wires or other holding means, may therefore be summed u briefly res1stroduced by forcingthe ange of the capsu e around its entire periphery .tightly against the receptacle; the locking engagement of the iiange with specially formed grooves or beads on the receptacle; the adiI ditional grip which is afforded by forcing the soft metal of the iiange into minute 4locking engagement with every surface iin erfection; the stiffening of the capsule resu ting yfrom such minute engagements, from the forma# tion of the well defined circumferential rim or groove in the flange o f the capsule, and

from the presence of the depending skirt or band Aformed by lthe flange extending below` neck after sealing. It will'thus be seen that the soft nature of the material from which the'capsule is formed not only facilitates its ready removal', but also performs important 3 functions in strengthening its hold on the receptacle. A v

'I claim as my invention The combination of a' receptacle having "a re'ntering portion in its outer surface, and a 3 cap'havlng its topeut through so as to form 4{tn-integral rupturlng tongue forl tearing the v vsixth day of July, 1903.

- EWALD eoLfrsTniN.

Witnesses:

' W.- FRHRR. v. LYNDK'ER,

CARL Sonluirr.A

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