US2189628A

US2189628A - Bottle capping machine

Info

Publication number: US2189628A
Application number: US235405A
Authority: US
Inventors: Corsi Nicholas
Original assignee: AJAX BOTTLE CAP CORP
Current assignee: AJAX BOTTLE CAP CORP
Priority date: 1938-10-17
Filing date: 1938-10-17
Publication date: 1940-02-06
Anticipated expiration: 1957-02-06

Description

Feb. 6, 1940. N. cdRsl BOTTLE CAPPING' MACHINE Filed Oct. 17, 1938 INVENTOR. BY 'WflwQa/z. Q0 0w.

WMHQIVEY.

Patented Fa. 6, 1940 UNlTE- STATES PATENT] orr cr.

BOTTLE CAPPING MACHINE Nicholas Corsi, Brooklyn, N.'Y., assignor to Ajax Bottle Cap Corp., Brooklyn, N. Y.

Application October 17, 1938, Serial No. 235,405

2 Claims. (01. 226 -86) upwardly, and inwardly to project slightly beyond v the cylinder. Ihe invention relates especially to a mechanism for engaging this outward rim at a plurality of positions circumferentially and pressing indentations or crimps under the annular rim of the bottle. Inside the top of the metal cap is placed a thin disk of paper having a coating of rubber on the bottom thereof. which tightly engages the top of the'bottle and is held securely thereon when the metal cap is tightly crimped down on the top of the bottle. The improvement is a chuck which is designed to be mounted on the lower end of 'a vertically reciprocating shaft which is directlyovcr a support or stand for the bottle so that when the bottle is in position on the stand, the shaft is exactly centered over the bottle. There are a variety of bottle capping machines which operate with a vertically reciprocating shaft and this improvement may be attached to any of these machines, some of which are motor actuated and others either manually or pedally operated.

Various features of the improved chuck are a main body member having a bottom central cylindrical aperture substantially the same in diameter as the metal cap and having at the bottom an annular groove for receiving the bottom outward rim of the metal cap so that the metal cap fits snugly up in the cavity, but the top of the cavity is: higher than the metal cap so that a space is left over the capwhich prevents the chuck from engaging the top of the cap and thereby eliminates any danger of shattering the bottle when the chuck is brought down into position around the metal cap. Radially disposed on the chuck on horizontal pivot pins, are a plurality of levers of the first-class, which have arms rising above the chuck and which have arms extending substantially to the bottom of the chuck. The lower end of each arm is positioned so'that itslower end engages the bottom rim of the metal cap and when it moves inwardly it presses the rim under the outer rim of the top of the bottle, but it does not directly press on-the glass but alpositively moved in both directions-by means of ways presses on the metal below the glass so that danger of shattering the glass is completely eliminated. The ohuckis formed below the pivot between the lever armand the cavity in the chuck with a stop surface which assures that the toe "5 of the lever will not move inwardly beyond the predetermined pointso that a uniform crimp is always obtained and danger of contacting the neck of the bottle is eliminated. The levers are a toggle arrangement. A hollow shaft is mounted to reciprocate vertically in a central bore in the top of. the chuck. An annular plate may be inserted in the top of the lower cavity of the chuck and forms a stop to prevent the hollow shaft from downward movement beyond a predetermined point.v Lugs disposed radially in line with each lever on the sides of the hollow shaft are connected with'each lever by means of links, each lingbeing pivoted to the outer end of the lug and also pivoted to the top of the lever. It'is clear that the downwardmovernent of the hollow shaft makes a positive toggle action which forces the toe of the lower arm of the lever positively into engagement with the lower annular rim of the metal cap to form a crimp and it is also clear that when the hollow shaft is raised,

the toe of the lever is removed from the crimp in the rim of the cap permitting the removal of the sealed bottle and the insertion of a fresh bottle and cap into the lower cavity of the chuck. A cover or canopy maybe mounted on the chuck, but-centrally apertured for the shaftpto keep dust or dirt out of the movable parts. A hole may be provided in the upper part of the hollow shaft which permits the insertion of a stick or rod, which may be pushed down to engage and remove a metal cap in case the latter should become stuck or wedged in the cavity of the chuck. The invention provides a very powerful and precise crimping action, safeguards in every the cracking of the bottle and procures a tight seal on the top of every bottle. The mechanism is very simple in construction and in operation. Referring to the drawing: Figure 1 is a vertical section showing the open position of the crimping levers.

Figure 2' is an enlarged vertical section showing the closed or crimping position of the levers.

Figure 3 is a top plan view of Figure l with (5 A jar or bottle I0 is moulded with a top annular rim I I, the outer projection of which, in vertical section, is in the form of one-half a rectangle. A metal cap 12 in the form of a section of a cylinder including one end thereof, has on the outer edge knurling, or serrations for assisting in removing the cap from the jar. Inside the top of the cap is placed a paper disk [3 entirely covering the inside top of the cap and having a rubber coating for engaging the top of the jar l0 and tightly sealing the cap thereon. The lower outer edge of the cap I2 is provided with an outward and upward curl forming an outwardly projecting rim M at the bottom of the cap which is made of a metal bendable in the operation of a bottle capping machine to form crimps l5 which turn inward and upward under the top rim ll of the jar I0. In the form shown the cap is provided with six crimps l5 equidistantly disposed, which assure a tight seal of the cap on the jar.

The machine for sealing the caps l2 on the jars It comprises a chuck I3 having formed centrally in the bottom thereof a cylindrical cavity I! of the same size as the cap I2. The cavity l1 connects with the top of the chuck [6 by means of a central bore l8 and the bottom of the cavity I! is provided at the lower outer edge with an annular groove or recess 19 which is exactly the same size as the lower rim M on the bottom of the cap l2. An annular disk 23 exactly fits up in the top of the cavity l7 and is secured therein by screws 2| which enter screwthreaded bores in the chuck Hi. The size of this disk 23 is such that it projects inwardly into the bore Hi to provide a stop around the bottom of the bore ill but to leave a central aperture for access to the top of a cap l2. In the chuck l6 are provided six radially disposed vertical slots 22. A hollow vertical shaft 23 exactly fits the bore H3 in the chuck and is adapted to reciprocate therein, and the shaft 23 is provided with a screw-threaded central bore 24 at the top thereof for attaching the shaft 23 to the bottom of the vertically reciprocating shaft of a bottle capping machine. An aperture 25 may be provided in the side wall of the hollow shaft 23 for the insertion of a wire or rod, which may be used to dislodge a cap l2 stuck in the cavity 11. The hollow bore 26 of the shaft serves for a recess for the bottom of the vertically reciprocating rod of a bottle capping machine or for introducing a rod or wire through the aperture 25.

An annular collar 21 is secured on the outside of the shaft 23 above the chuck H; which supports six radially disposed lugs 28 each having a vertical slot which mounts a transverse pivot pin 29. The slots in the lugs 28 are in the same vertical plane as the slots 22 in the lower portion of the chuck it. Links 3| have their inner ends pivoted on the pins 29 and have at their outer ends vertically slotted yokes 32. Pins 33 horizontally positioned in the vertical slots of the yokes 32, pivotally support at the upper end levers 34 which are mounted for radial rocking motion on pins 35 transversely positioned in the slots 22. At the end of the lower arm of each lever 34 is an inwardly projecting toe 36 which is adapted to engage the lower rim M of the cap l2, as shown in Figure 1, and push it in under the rim ll of the jar IE! to form the crimps l5,

as shown in Figures 2 and 4. The lower inner ends of the slots 22 are provided with stops 3'! which engage the lower inner edge of the levers 34 in the innermost crimping position and prevent the toes 33 from pushing the metal rim [4 in so far as to injure the glass of the jar H]. A cap 38 may be mounted on lugs 39 at the side of the chuck I6 and exclude dirt from the moving parts of the machine.

The mode of operation.-A bottle l0 which is mounted on a stand in a bottle capping machine is centrally positioned under the vertically reciprocating shaft of the bottle capping machine, which also mounts the shaft 23, as shown in Figure l, of my improved crimping device, and the crimping device, including the chuck I6, is lowered on to the top of the cap l2 to the position shown in Figure 1. As the shaft 23 is lowered further to the position shown in Figure 2, the

links 3| are pushed down and provide a toggle action on the upper arms of the levers 34 thereby forcing the toes 36 inward against the rim I4 of the cap 42 to provide the crimps 15, as shown in Figures 2, 4 and 5. As the shaft 23 is again lifted the chuck returns to the position shown in Figure l and is also raised as much more as may be required for the facile removal of a bottle having a crimped cap thereon, which is shown in Figure 5, and the machine is then ready for the insertion of another bottle as shown in Figure l. The operation is very rapid and the bottle capping machine may be operated by a motor, or by a manual or pedal control, as desired.

aving shown and described one form of my invention and realizing that in view of my disclosure modifications will readily occur to those skilled in the art, I do not limit myself except as in the appended claims.

I claim:

1. A bottle capping machine comprising in.

combination, a chuck, a central cylindrical cavity in the bottom of the chuck for the insertion of a bottle cover with a metal cap to be fastened on top of the bottle, a plurality of levers pivoted on the chuck and having arms movable radially toward and away from the center of the cavity,

means for moving the said arms into engagement with the rim of the metal cap and also out of engagement with the metal cap, a centrally mounted vertically reciprocating shaft in the top of the chuck, links connecting said shaft and the tops of the levers, the bore of said shaft connecting with the cavity in the bottom of said chuck, and an annular plate centrally apertured but having an inner wall engageable as a stop with the bottom of the hollow member.

2. In a bottle capping machine for crimping a metal cap on a bottle provided with an outer top rim comprising a chuck having a central bottom cavity for receiving the metal cap, the

cavity having a height greater than that of the metal cap, the bottom of the cavity terminating in an annular groove adapted to receive the lower rim of the metal cap, and a plurality of levers pivoted on the chuck and having toes mounted to engage the lower edge of the metal rim below the annular rim at the top of the glass bottle and push said rim under said annular rim of the bottle, the toes having an extended upper surface adapted to push the metal closely under the lower edge of the glass rim.

NICHOLAS CORSI.