US1492978A - Spaced or sectioned continuous-thread container and cap therefor - Google Patents

Description

May 6, 1924. 1,492,978

C. HAMMER SPACED OR SECTIONED CONTINUOUS THREAD CONTAINER AND CAPv THEREFOR Filed July 7, 1923 5 1/ fit w to a continuously threaded one.

Patented May 6, 1924.

warren; STATES mm or rica.

CHARLES HAMMER, or HOLLIS comma BOULEVARD, nawfxonx.

SPACED OR SECTIONED CONTINUOUS-THREAD CONTAINER AND CA1 THEREFOR.

Application filed J uly 7, 1923. Serial No. 650,115.

- portions of such containers, the object of the invention being to provide an improved threadon a glass container particularly adapted for use with what is known as a continuous thread cap, whereby certain disadvantages heretofore present in the use of continuous thread caps are eliminated, the quick application and ready removal of the cap facilitated, and the effective drawing down and complete sealing of the container insured.

Glass containers as manufactured today are divided into two main classes, one havin the neck or top of the container provide with continuous threads complementary to similarly formed threads on the cap, and the other having the top or neck of the container provided with what is known as divided threads for use with similarly formed threads or lug projections on the cap. The continuous thread glass container has its thread starting at a predetermined point from the mouth or top of the neck and run ning without interruption entirely around the neck, terminating at or adjacent to the shoulder of the container and comprises one complete thread but usually several overlapping threads according to the number of threads per inch that the container is provided with. A divided thread container has each thread starting at the same point from the mouth or top of the container and terminating at the same point at or adjacent to the shoulder. 1

For many reasons it has been found that a divided thread container and cap is superior Some of these reasons are that a divided thread jar and cap enables the cap to be more uniformly drawn down and consequently a better sealing of the jar is effected. The cap can be more quickly applied and more easil removed, and the sticking and binding usua 1y present when a continuous thread is used sometimes requiring the application of mechanical means, as a cold chisel or a vlse in order to remove the cap, is eliminated. On the other hand, there are some advanta es in a continuous thread cap which make t is form of cap desirable for use with certain products, among which is that such a cap can be more uniformly made and probably more economically produced, but so far' as I am aware, it has not been heretofore possible to use a continuously threaded cap on anything but a continuously threaded jar or container.

It is a fact that glass containers are not uniform, and this can be easily demonstrated by taking several glass containers of the same size and construction, and placing them mouth downward upon a level surface, and it will be found that the top edge of the container more or less varies so that the jar more or less wabbles. In other words, the upper edge of the container is not entirely uniform, one part projecting to a greater extent than another. Consequently on the application of the cap it will fit more tightly at one part than at another, so that the container is not efficiently and effectively sealed, unless all parts of the cap are uniformly drawn down. This uniform drawing down is better obtained by a divided thread cap than by a continuous thread cap because the continuous threads of the cap so stiffen the flange of the cap that there is no opportunity for the cap to yield and conform .to the inequalities of the sealing surface or edge of the container, and consequently it does not fit as tightly or as well as where there is a uniform drawing down. It is for this reason that it has been the practice to a large extent to provide the cap and container with divided threads, since these divided threads will insure a more even drawing down of the cap. A divided thread cap on the other hand has the disadvantage because of the sharp inclination of the thread to prematurely come loose or ride off the threads of the container, and thus loosen the cap, and unseal the container. This disadvantage is not present in a'continnous thread cap, since the long gradual continuous thread effectively holds the cap onthe bottle against any such premature unsealing or opening, but a continuous thread cap requires that it be entered on the jar at just one point, and requires several turns to turn it onland turn it off. For these reasons, and others, it has been largely superseded by the divided thread cap, which however as just stated, has the disadvantage of not as effectively holding on a container as a continuous thread, although its advantages have proven so much greater in other respects than a continuous thread that it has been largely adopted in place of such continuous thread.

The 1 object of the present improvement therefore is to provide a threaded container, which can be used with a continuously threaded cap and which will combine the advantages of both the divided thread and the continuous thread, while eliminating the disadvantages of each, thus providing a very much improved contalner, and thus will permit the application of a continuous thread tainer and side view of the cap; Fig. 4 is a top and seetionview of the cap applied to the container; and Fig. 5 is a plan or lay-out. View of the container illustrating the position of the threads end to end around the container.

Similar characters of reference indicate corresponding parts in the several views.

Before explaining in detail the present improvement and mode of operation thereof, it is desired to have it understood that the invention is not limited to the details of construction and arrangement of parts which are illustrated in the accompanying drawings, since the invention is capable of other embodiments, and that the phraseology which is employed is for the purpose of description and not of limitation.

The container 2, which may be of any suitable form, shape and material, is shown herein] as a glass container in the form of a jar, and may be provided with the usual shoulder 3 and neck portion 4. This neck portion is provided with a plurality of lengthwise spaced threads 5, each equally spaced apart around the neck of the container, and each preferably of the same length, and were these threads connected and not endwise spaced they would form one continuous thread or spiral around the neck of-the jar, and therefore by reason of the spaces between the threads it will be observed that each thread or the working surface thereof is located at a different distance from the top of the jar compared with a companion thread or in other words that thread, as D, which starts nearest to the top; edge of the container and runs in an inclined direction toward the shoulder, has its under-or working edge located nearer to the upper edge of the jar and further from the shoulder, than the next following thread as C, which in turn is located nearer to the upper edge of the jar and further from the shoulder than the next following thread as B. and so on until the last thread A is reached, which is located further from the top edge of the jar and nearerto the shoulder than any other companion projection. The under or. working faces of each of these projections are inclined in the direction of their length from the top of the jar toward the shoulder when such is used, and all have the same inclination, thus each forms a thread or threadlike projection, and in practice the upper edges may be similarly inclined.

By reason of this construction and the location of the threads around the neck of the jar, it will be seen that theyare particularly adapted for theapplication of a continuously threaded cap.

In the present illustration four thread sections are shown, but the number thereof may vary according to the diameter of the container.

Among the advantages of the present improved construction is that it is unnecessary to form the glass thread all around the neck of the container, thus. to this extent reducing the liability of fracture or imperfection in the thread, and also materially reducing the expense and labor of forming the metal molds, since it is unnecessary to cut the metal molds all the way around to form a continuous thread, it obviously requiring less labor and time to form a section of a thread in the metal mold or neck rings than to form the entire thread.

In addition as the thread on the container is arranged in sections or endwise spaced portions, it follows that if the jar is unevenly formed on its per edge or mouth, these spaced sections Wlll enable the eap to adapt. itself to the unevenness of the sealing surface of the jar in the same way that a divided thread jar enables that form of.

cap to adapt itself to the sealing surface.

In other words, the spaced or sectioned its the formation of a continuous thread on the flange thereof, does not prevent an effective drawing down of the cap at all points, enabling the cap to yield as it were,-at any point of inequality on the upper edge of the jar due to the'endwise spaced formation of the threads on the container.

F urthermdre the formation of the threads in the manner disclosed enables a. continuously threaded'cap to go 'on veasier and with less friction. -In fact, by reason of the manner in which this improved thread is made, it has, been found in practice that although a continuously threaded cap cannot be entered on a continuously threaded receptacle, except at one point, to wit: the starting point of the] thread at the upper end of the receptacle, yet in the present improvement by reason of the fact that the lower edge of the flange of the cap must slip over the threads in I or er tostart the cap on the container, that a continuously threaded cap can be'st-arted on the container either at the point of the uppermost thread sec-' tion or at the next succeeding thread section, in which latter event the proper sealing of the cap is obtained by less rotation of the cap than has heretofore been possible with a continuously threaded cap and container. Thus in the present improvement, the cap can be-started on at at least two points on the receptacle, so that it is not necessary for the user to always start it at the same point, as has heretofore been necessary with a continuously threaded receptacle. Due to this fact the cap will go on easier, and -also' will go on easier because there is less friction between the cap and the jar threads, since for each omitted thread section an equivalent amount of friction is eliminated. Thus this improved formation of container thread as.- sists in quick and easy placing of a continuously, threaded cap on the jar, a quicker and a more effective sealing on the container than was heretofore possible with continuously threaded receptacles and caps. And furthermore by the improved formation of the threads in the manner shown and described, there is no likelihood or danger of crossing the threads on the application of the cap, as is frequently the case with a continuously threaded receptacle and cap, rendering it at times almost impossible to remove the cap by hand, and at times impos' sible to remove it even by the application of mechanical means without the breakageof the glass container with the possibility of glass fragments getting into the/contents and making it necessary to either throw away the contents or run the risk-of serious injury to the user,' aside from the danger of cutting the hands in an attempt to loosen the cap.

Notwithstanding my longmxperience of many years in the cap making art, and consequent long familiarity with the glass making art, I am unaware of any container having a similarly formed thread to that herein shown and described, and since the thread-is neither a continuous thread nor a dividedthread for the reasons hereinbefore stated, I have elected to call it a spaced or sectioned continuous thread, since it will cooperate with a continuously threaded cap, but notf 'wit-h a divided thread cap of the usual form, in which the divided threads all start and terminate at the same points on' although this surface could .he corrugated or otherwise formed if preferred. .This

construction, as well as the beaded or curled edge, strengthens both the cap and the flange of the cap, while the. latter prevents the cutting of the hands and the rusting of the'cap at this point. 'Between this polygonal surface and the strengthened edge 1s located the continuous thread 11, whiclrat the lower entering end 12, is narrow and shallow and gradually deepens and widens, as it progresses around the cap for a large portion of the flange of the cap, thus form ing what may be considered in one sense as a wedge of two dimensions, that'i's, a wedge in height as well as in'depth. The end of this continuous thread of course deepens and grows shallow toward the top of the cap and may or may not overlap the for-- ward end of the same thread.

It is to be understood that by describing structing and using the same, although without attempting to set forth all of the forms in which it may be made, 01' all of the modes of its use, I claim:

1. A container having a spaced or sectioned continuous thread,

len thwise whereby said sections would, if connected,

form a spiral. I,

2. A container having a plurality of threads spaced lengthwise from each other, and each located at a different point on the container relatively to its companion threads, whereby said spaced threads would,

I 4. A container' having lengthwise spaced or sectioned threads located and positioned if connected to form a spiral to receive a continuously threaded cap.

5. A glass container having a plurality of lengthwise spaced or sectioned threads,

the lower edge of each having the same in-' clination as companion threads, whereby, if connected, they would form a spiral.

6. A glass container having a plurality of lengthwise spaced or sectioned threads, the lower inclined edge of each prolonging the inclined lower edge of. companion threads, whereby, if connected, they would form a spiral. 1

7. A glass container having a plurality of lengthwise spaced or sectioned threads, the lower inclined edge of each prolonging the inclined lower edge of companion threads, and each thread having its entire lower edge spaced differently from the top of the container than the lower edge of all of its companion threads, whereby, if connected, they would form a spiral.

8. A sealed package comprising a container having a lengthwise spaced or Seetioned continuous thread, whereby said sec tions, if connected, would form a spiral and a continuously threaded cap thereon.

9. A sealed package comprising a con tainer having a lengthwise spaced or sectioned continuous thread, whereby said sections, it connected, would form a spiral and a continuously threaded cap thereon, said cap comprising a top and a depending shallow flange or skirt having therein a roughened surface.

10. A sealed package comprising acontainer having a lengthwise spaced or sectioned continuous thread, whereby said sections, if connected, would form a spiral and a continuously threaded cap thereon, said cap comprising a top anda depending shallow flange or skirt having therein a roughened surface, and a strengthened or reinforced lower edge with the continuous thread thereof located between such strengthened edge and the roughened'surface.

11. A sealed package comprising a container having a lengthwise spaced or seetioned thread, whereby said sections, if con- 4 nected, would form a spiral and a shallow flanged metal cap comprising a top and a depending shallow flange or skirt having a polygonal portion, and a continuous thread therebelow.

polygonal portion, and a curled, rolled, or

beaded edge, and therebetween a continuous thread.

13. A sealed package comprising a glass container having a lengthwise sectioned or spaced continuous thread, whereby said sections, if connected, would form a spiral a metal cap thereon havin a shallow depending flange or skirt provlded with a roughened surface reinforcing said cap and flange, a beaded, curled or rolled lower edge also reinforcing said flange and therebetween a wedge-shaped projection narrow and shallow at one end and merging into a wider and deeper portion.

14. A sealed package comprising a glass container having a lengthwise spaced or seetioned continuous thread, whereby said sections, if connected, would form a spiral a metal cap thereon comprising a top having a depending shallow flange provided with a polygonal portion, a strengthened lower edge, and therebetween a projection narrow and shallow at one end, merging into a wider and deeper portion.

15. A glass container having a series of endwise spaced threads or threadlike projections, each starting and terminating at a different point relatively to the top of the container from every other projection, whereby said projections, if connected, would form a spiral.

16. A glass container having a series of endwise spaced threads or threadlike projections, each starting and terminating at a'difi'erent point relatively to the top of the container from every other projection, the starting end of one projection and the terminating end of another being lengthwise no spaced in the same inclined plane, whereby said projections, if connected, would form a spiral.

17. As an article of manufacture, a container and a removable flanged cap therefor, one having endwisespaced elongated projections extending all around thearticle and having their holding edges inclined and disposed in different horizontal planes from the top to form and have the location of a continuouslike thread, whereby said projections, if connected, -would form a spiral, and the other having a continuous threadlike projection for engagement with said spaced projections.

18. As an article of manufacture, a container and a removable flanged cap therefor, one having a'series of substantially equally spaced elongated projections of substantially equal length extending all around the article and having their holding edges- Lsaid spaced projections, said cap flange havinclined and disposed 1n difi'erent horizontal mg a reinforced lower edge and a strength- I planes from the vtop to form and havethe. ened portion adjacent to the to thereof. 1

location of a continuouslike thread, whereby Signed at Brooklyn, N. Y. thls 5th day of 5 said projections, if connected, would forn; July 1923. I

a spiral, and the other having a continuous I threadlike projection for engagement with CHARLES HAMMER; I

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