US2615608A

US2615608A - Closure applying mechanism

Info

Publication number: US2615608A
Application number: US10896A
Authority: US
Inventors: Young Samuel Davison
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-02-03
Filing date: 1948-02-25
Publication date: 1952-10-28
Anticipated expiration: 1969-10-28

Description

Oct. 28, 1952 s, YOUNG 2,615,608

CLOSURE APPLYING MECHANISM Filed Feb. 25, 1948 2 Sl-iEETS-Sl-IEET l Oct. 28, 1952 s. D. YOUNG 2,615,608

CLOSURE APPLYING MECHANISM Filed Feb. 25, 1948 2 sms'rs-srmm 2 Patented Oct. 28, 1952 )UNITED: STATES PATENT OFFICE l Y 12,615,668} fl CLOSURE APPLYINGMECVHANIIISM Samuel bavison Young, England Application February 25, 1948, Serial No. 10,896 V In' Great Britain February s, 1944 Section 1, Public new e'iid fiuk ust s, 1946 Patent expires February 3, 1964; V

the mouth or opening ofthe container designed for assisting in securing a cap or closure in posi tion thereon. l I r The invention consists ina closing head for securing caps or closures furnishedwith a peripheral flange having a false wire, beaded or other wise thickened outward extending continuous or uninterrupted edge or extremity on containers furnished with a welt, bead or the like or otherwise formed to provide a recess or, re-entrant portion below the mouth of theope'n'ing thereof, adapted to encircle the flange of the cap or closure and provided at a plurality of spaced intervals with elements projecting inward and formed to effect local displacement of the edge of the flange of the cap or closure in a downward and radially inward direction leaving intervening l/ portions of the flange free. I

The elements adapted to secure local inward anddownward displacement of the continuous edge of the cap or closure are in effect ribs and they will normally be furnished adjacent the open end of the closing head with inclined or radiussed portions to facilitate the entry and gradual displacement of portions of the flange of the cap or closure in a downward and radially inward direction by the movement of. the head in a direction parallel with the axis of the container.

The number of points with which the elements are provided in the head for effecting displacement of the flange may be varied in accordance with requirements.

In the case of a head designed for engaging the cap or closure, on a standard 1 lb. jam jar, it may be six, or preferably twelve, while in the case of containers of the character employed for potted meat, four or preferably eight may be sufficient.

The invention will be described further in detail and by way of example with reference to the accompanying drawings, in which:

Figure 1 is a view in elevation of a cap or closure secured in accordance with the invention to a standard 1 1b. jam jar.

Figure 2 is a corresponding plan view.

Figure 3 is a view in elevation partly in section of a jar furnished with a peripheral flange, such as is commonly employed in packing potted meats having secured to it in accordance with the in vention a cap or closure.

Figure 4 is a view in sectional elevation of a sealing head for use in securing the cap or closure in position.

f f Figure 5 is asectional plan viewon planes indicated by the line V -'-V in Figure 4. g

v As'will be seen from Figures 1, 2 and 3, the cap or closure is generally of the usual formand is furnished with a flange I having a false wire edge 2, portions of which 3 at equally spaced intervals have been defleotedinward and under the'e'dge of the welt 4 of a jam jar or below the peripheral flange of a jar such as is used in the vacuum packing of potted" meats, thereby securing the cap} 'or closure in position with for instance a washer orjjointv ring 5 bearing on the top ofthe welt. i l

For effecting this, connection a closing head generally as illustratedin Figures 4 and 5, isused. jAs will be seenjthis closing head which is adapted to be engaged with the ram of a'press of I known construction, comprises a crown member GWhich forms a housing for aplurality'gof jaws 1, which are provided with bevelled surfaces 8 adjacent to their'lower extremities to facilitate their passageu'over 'the'false wire or, wired edge of the cap or closure and are located in recesses as shown inthe upper portion of the'housing and extend through gaps between the fingers 9 at the lower'extremity of the housing, the jaws being securedin position inthe recesses by set'screws l0j engaged in a flanged'top plate H and bearing upon packing pieces [2 contacting with the jaws, the housing being engaged in the top plate by screws l3.

In the construction shown, through the housing in the top plate extends the stem M of a pressure plate IS the purpose of which is to hold the cap in position against its sealing ring or the like on the flange or the equivalent portion of the container in order that the sealing operation may be completed by the downward movement of the closing head.

While in the above detailed description the invention has been described in its application to securing caps or closures to glass jars, it is to be understood that it may be applied to securing caps'or closures on containers formed of sheet metal of the type in which in the peripheral wall of the container there is provided an annular recess somewhat below its upper or outer extremity.

It is therefore clear that my present invention i provides a closing head for cooperation with closures of the type having a depending peripheral flange, which flange is provided with an uninterrupted, thickened, radially extending outer edge. The closure head being operable and dimensioned to encircle the flange of the closure or cap and secure the same to a container of the type having a welt or bead adjacent the mouth which projects outwardly of the body of the container and provides a recess or reentrant portion below the mouth of the container. The closure head of the invention comprises a crown member including a body from'which depends a skirt. The skirt is provided with longitudinally extended, circumferentially spaced slits. The body portion has greater diametrical extent than the skirt and is provided with longitudinally extendin grooves on the periphery thereof in longitudinal alignment with the slits. Within each groove and extending longitudinally of the axis of the crown member are provided jaw members. Therefore the jaw members will correspond in number to the number of slits and thus the jaw members and the several areas of skirt between each slit constitute respective finger means. The finger means on the skirt therefore being integral with the crown and means in the form of washers and set screws passing through apertures in a flanged top plate, or cap member rigidly and detachably secure the upper portion of each of the jaw members in the grooves in the body portion of the crown member so as to rigidly and detachably secure the jaw members to the crown with the jaws attached to the crown in cantilever fashion.

A pressure plate is disposed within the skirt in slidable relation with respect to the crown for cooperation with the top of the closure to hold it in position against the container, whereupon downward movement of the closing head proper, that is relative axial movement of the crown member with respect to the pressure plate, effects inward displacement of portions of the uninterrupted thickened outer edge on the peripheral flange of the closure at circumferentially spaced intervals. I

The number of local displacements of the outer edge of the cap can be varied by varying the number of the jaw members secured in the grooves in the crown. Each of the removable and detachable jaw members terminates at its lower end with inclined or raised surfaces to facilitate the re-entry and gradual displacement of portions of the cap and these jaw members thus provide in the skirt a plurality of circumferential spaced points which, as shown in the drawings,

extend inwardly of the finger means embodied with the skirt so that they efiect the local displacement of the edge on the flange of the cap in a downward and radially inward direction leaving the intervening portions of the flange free. This relationship is clearly shown in Figure 5 where the removable and replaceable jaws have greater radial extent with respect to the axis of the crown than is the thickness in the radial direction of the skirt.

I claim:

A closing head for securing caps or closures of the type having a peripheral flange having an uninterrupted, thickened, radially extending edge thereon to containers of the type provided with -a welt pI'OViding a recess or reentrant portion below the mouth of the container, said head being adapted to encircle the flange of the cap in a closing operation and comprising a crown having a depending skirt, said skirt having circumferentially spaced longitudinal slits therein, a plurality of jaws each including an upper portion and said jaws corresponding in number to the number of slits in the skirt extending longitudinally with respect to the axis or said crown depending therefrom and disposed within said slits, means rigidly and detachably securing the upper portions of said jaws to said crown so that the jaws are attached to the crown in cantilever fashion and said jaws having inner surfaces disposed radially inwards of the adjacent surfaces of the skirt for engaging and effecting local displacement at circumferentially spaced positions of the radially extending edge on the flange of the cap in a closing operation.

SAMUEL DAVISON YOUNG.

REFERENCES CITED The following references are of record in the