US852323A

US852323A - Method of capping bottles.

Info

Publication number: US852323A
Application number: US33044906A
Authority: US
Inventors: Henry L Fulenwider; Samuel C Bond; William G Bond
Original assignee: NAT CORK AND SEAL Co
Current assignee: NATIONAL CORK AND SEAL Co; NAT CORK AND SEAL Co
Priority date: 1906-08-13
Filing date: 1906-08-13
Publication date: 1907-04-30
Anticipated expiration: 1924-04-30

Description

PATBNTBD APR. 30, 1907. H. L. FULENWIDER L S. C. da W. G. BOND.

METHOD 0F GAPPING BOTTLES. APPLICATION rrLED AUG.13,1006.

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Nr1.852.323. PATBNTBD APR. 30, 1907.

H. L. FULENWIDBR & S. C. & W. G. BOND.

METHOD OF CAPPING BOTTLES.

APPLICATION rILnb AUG.13.190G.

zsHEnTs-SHBET z Fl E.- 2.

F I E- 3 Mmvsmons X My. f/

3 1.,-, shrinkage'or contraction of the isk in the bottle.

U'NITED STATES PATENT OFFICE.

HENRY L. EULENWIDER, SAMUEL o. BOND, AND WILLIAM G. BOND, vOE WIL-` MINGTON, DELAWARE, AssIGNoRs To NATIONAL CORK AND SEAL OOM- PANY, or WILMINGTON, DELAWARE, .A CORPORATION OE DELAWARE.

Specication of Letters Patent.

Patented April 30, 1907.

Application iiled August 13,1906. Serial No. 380,449.

.To all whom it may concern:

Be it), known that we, HENRY L. FULEN- WIDER, SAMUEL C. BOND, and WILLIAMS. BOND, residing atVVilmin ton, in the county of Newcastle and State O Delaware, citizens of the United States, have invented or discovered certain new and useful4 Im rovements in Methods of Cap ing Bott es, of which improvements the follbwing is a specification.

The invention described herein relates to an improved method in securing sealing caps on bottles. These caps are provided with a packing generally consisting of disks formed of a yielding material such as cork, which will not be affected by the contents of the It has been the practice in applying these caps to the bottle to pressnthe cap toward the bottle with suiiiciant force to cause the disk to seat hermetically in the end of the bottle neck. The anges of the cap are then bent inwardly under the rib or bead on the' ,gases in the bottle wi l be sufficient to force the disk from its seat, the straightening of the -bulge or fold inthe ange permitting an un- .seating movement of the disk. -Even in no fold or bulge is formed in the ca flange, a

cap would permit the escape of gases from the bottle. A

It is the object of this invention to subject the metal of the cap when ap lying to the bottle, to a stretching within t e limits of elasticity so that the packing disk will be subjected at all times to a seating pressure. In thus subjecting the metal of the cap to tension, all possibility of forming folds or bulges is avoided, and any shrinkage or contraction of the packing disk will be compensated forl The invention is hereinafter more fully describedand claimed.

y In the accompanying drawings forming a part of this specification, Figure 1 is a sec-l tional elevation of a portion of a machine adapted to the practice of our invention; Figs. 2, 3 & 4 are views showing .the parts of the machine directly ocpprative to secure the'.

cap onthe bottle, at erent stages ofthe operation; Figs. 5, 6, and 7 are sectional views, illustrating another form ol.` ap aratus for carrying outour improved metho.l

In the practice of our inventionthe top of the cap is preferably made flat as shown in Figs. 2 and 5 and the portion of the presser head 23 in Fig. 2 or 5 in Fi 5 operative on the cap is so shaped that W en pressing the cap on the bottle, it will have an outward stretching action on the top of the cap and will tend to force the outer edge of the top of the cap downwardly around the lip'of the This result is produced when usingl bottle. caps With iat tops by making the face of the presser head 23 concave and of such adiameter relative to that of the caps, that the edge a of the head will bear on the cap closely adjacent to the periphery of the top thereof slightly before or in advance of the end of its cap seating movement.4

After the cap has been forced down over the end of the bottle neck, seating the acking disk hermetically and stretched or p aced under tension, the tools or parts designed to act on the ilange of the cap, are brought into operation. These tools or parts, i. e., the spinning rollers 21 ofthe construction shown in Figs. 1 to 4 and the wiping lingers 11 of the construction shown in Figs. 5 to 7, are so shifted during the seating of the cap that when the cap is seated, they will bear upon the flange in or approximately in a plane indicated by the line y-y passing through-the apex of the rib or bead b of the bottle. These tools are now caused to move down along and under the bead b bearing at all times With suiicient force on the flange lto cause it to bear smoothly on the bead but also to subject it to sufficient tension to produce a stretching of the metal within the limits of elasticity. This pull along the flange is a continuation of the radial pull effeoted by the presser heads in seating the packing disk so that practically the whole cap is stretched and the metal placed under Y tension so that when the cap is anchored by the bending of the edges of the flange under seatin p ull on the packing disk. ,l g 'W e `weydo not li t ourselves to any particular forni or construction of apparatus IOO for the practice of our improved method, we have shown two desirable forms of machine for that purpose. The construction shown nFigs. 1 to 4, inclusive, forms the subject matter of an application filed December 22, 1905, Serial No. 292,949, and consists as stated in said application of a head A carried by a sleeve 12a, movable in tubular standard 13a. This head is yieldingly supported by a spring 14a, and suitable means are employed for movinv down the head and the parts carried thereby, said means operating through the sleeve 9a, all as described and shown in said application. The head carries a holding rod, 18, which is surrounded by

sleeves

19 and 20. One of these sleeves carries the spinning 4rollers and the other has mounted thereon means for shifting said spinning rollers into operative position as regards the cap to be secured to the bottle. The sleeves, 19 and 20, are rotated by gear wheel 16' throu h a pinion 17, the gear wheel being rotate by the shaft 6a. The movement of the sleeve 19 for forcing the spinning rollers 21 inward is effected by a lever 2-7, adapted to be shifted by a cam 29 carried by the wheel 16, and the sleeve 20 by a cam ring 33, also carried by the wheel 16. The presser head 23 is yieldingly mounted in the holding rod 18, and when forced down upon the bottle it takes a firm seat against the holding rod, as shown in Fig. 3. During the operation of securing a cap on a bottle, the presser head first operates as heretofore stated to stretch the metal of the top of the cap radially and hold it in such stretched condition until the flanges have been anchored under the bead, b, of the bottle neck. As soon as the cap has been firmly seated the rollers having attained a position shown in Fig. 3 bear upon the cap in or approximately in the plane of the line y--y, passing through the a ex of the bead b. During the operation o cap ing, the rollers arecarried rapidly aroun( the presser head and the cap on the bottle, and after having attained the desired bearing on the cap,' as stated, a further downward movement along the flange and inward under the bead is given to the rollers, so that they will' spin the metal in against and under the bead of the bottle and exert a. stretching action which as heretofore stated 1s a continuation of the stretching action produced by the presser head on the top of the cap. y

The construction shown in Figs. 5 to 7, inclusive, forms the subject-matter of an ap lication filed August 20th, 1906, Serial o. 331,305. In this construction as stated in said application, the head 1 is moved downward, so that the conical recess in its lower end will pass over the top of a bottle, and the presser block 5 bears u on the top of the cap as heretofore describe so as .to'effect a radial stretching of the metal of the top. By the continued movement of the stem 4, the plunger 2 is moved down, compressing the spring 8 and causing the fingers 11 to move inwardly and also to turn toward a horizontal position, until the portions operative on the flange of the ca bear upon such flange in the plane indicate( by the line y-y passing through the apex of the bead b. Thereafter the plunger and head 1 move down together, the plunger having a slight downward Inovement independent of the head, so that the fingers or tools 11 will have a wiping movement along the flange of the cap, ressinor it down and along under the bea b. T is stretching movement is a prolongation of the stretching action produced on the top of the cap by the presser head 5, and places the metal of the cap under such a tension that when the cap is anchored by the bending of the edges of the flange under the bead, there will be a constant seating pull on the packing disk in the cap. It is characteristic of both the spinning operation effected by the machine shown in Figs. 1 to 4 and the wiping action effected by the construction shown 1n Figs. 5 to 7, that the metal of the cap is smoothly and evenly applied to the bottle, and also laced as described under such a tension within the elastic limits of the metal that there is a constant seating pull exerted by the metal so that any contraction or shrinkage of the packing disk will be immediately` compensated for, and the hermetic seal of the bottle preserved intact.

It will be observed that our im roved method can be employed either wit caps having a bead between the flange and top as shown in Figs. 2, 3, 4, or with a cap having a straight flange extending from the top as shown in Figs. 5, 6, and 7.

It will be readily understood by those skilled in the art that our improved method of sealing bottles can be carried out by forms or constructions of machines other than those shown and described herein.

We claiml herein as our invention:

1. The method of applying anged sealing caps to bottles, which consists in pressing the cap on the top of a bottle mouth, simultaneously forcin the peripheral edge of the top of the cap ownwardly around the edge of the bottle mouth, and then stretching the flange of the cap down and into locking contact with the bead or locking shoulder on the bottle, whereby the periphery of the cap top- ,and the depending flange areplaced under strain or tension tending to exert a sealing pressure.

2. The method of applying flangedseahng caps to bottles which consists in ressmg the cap on the top of the bottle, su jecting the metal of the top and flange of the cap to a l stretching action within the limits of elas- TOO IIO

ticity and locking the edges of the flange to the bottle.

3. The method of applying flanged sealing caps to bottles which consists in pressing the cap on the top of the bottle, and simultaneously radially stretching the metal of the top of the cap, stretching the metal along the locking bead of the bottle and locking the edge of the flange under said bead.

4. The method of applying flanged sealing caps to bottles, which consists in pressing the cap on the top of the bottle, stretching the HENRY L. FULENWIDER. SAMUEL C. BOND. WILLIAM G. BOND.

Vitnesses:

WILLIAM H. GIBBONS, ARTHUR H. G. GARRETT