US1021825A - Cap-crimping die. - Google Patents

Description

UNITED sTATEs PATENT oEEioE.,

ROSS V. CRAGGS, 0F BALTIMORE, MARYLAND, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 THE NATIONAL EXCHANGE BANK OF BALTIMORE; A. COBPOB'ATION 0F MARYLAND.

` oAP-'eEIMPING DIE.

Specification of Letters Patent.

Patented Apr. 2, 1912.

Application led September 29, 1909. Serial No. 520,086.

To all whom it may concern:

Be it known that I, Ross V. CRAcGs, a citizen of the United States, and residing at Baltimore, in the State of Maryland, have invented certain new and useful. Improvements in Cap-Crimping Dies, of which the following is a specification.

This invention relates to cap crimping dies particularly adapted for use in bottlecapping machines for ixedly securing a cap upon a bottle neck to close the mouth of the bottle.

A further object of the invention is to provide a cap-crimping die in a manner as hereinafter set forth and claimed whereby it can be used for bottle necks of varying diameters within certain limits so as to overcome the necessity of using a separate die for every diameter for capping bottles when the diameter of the bottle neck varies within certain limits.

Further objects of the invention are to provide a cap crimping die particularly adapted for use in bottle-capping machines which shall be simple in its construction and arrangement, strong, durable, eflicient in its use, readily set up with respect to the elements ofa bottle-capping machine and inexpensive to manufacture.

With the foregoing and other objects in view the invention consists in the novel construction, combination and arrangement of parts as hereinafter more specifically described and illustrated in the accompanying drawings wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claim hereunto appended. f

In the drawings wherein like reference characters denote corresponding parts throughout the several views, Figure 1 is a vertical sectional view of a cap crimping die in accordance with this invention, illustrating the same in an inoperative position, Fig. 2 'is a like view showing the position of the die immediately preceding the crimping operat-ion and further showing the cap upon the mouth end of the bottle, Fig. 3 is a perspective view of one of the crimpers, Fig. 4 is a cross sectional view of the mouth end of a bottle showing the cap secured thereto! and further showing t-he cap crimping die, and, Fig. 5 is a plan of a plurality of crimpers or crimping elements showing their arrangement with respect to each other.

A cap crimping diein accordance with this invention includes a carrier, independent crimping elements fulcrumed in the carrier and a pressure-exerting member forthe crimping elements. y'By way of example, the die is illustrated in connection with an-inner and an outer piston 1 and 2 respectively, the carrier which is designated by the reference character 3 is secured Ato the innerpiston byy a headed member 4 and a pin 5. The shank of the headed member 4 extends Vthrough the carrier 3 centrally thereof and into the piston-1 yand the pin `5 extends through the piston 1 and the upper end of the shank of the headed element 4. The head of the element 4 is indicated by the reference character 6 and abuts against the lower face of the carrier 3. The pressureexerting member which is indicated by the reference character 7, incloses the carrier 3, and is formed integral withV the o uter piston 2 and is adapted to engage the crimping elements indicated by the reference character 8, whereby the cap 9 which is mounted upon the bottle neck 10 will be crimped around the bead 11 formed on the periphery of the bottle neck as illustrated in Fig. 4.

The carrier 8 consists of an annular body provided on its Alower face with an annular depending extension 12, and furthermore provided onits lower face at one side of the extension with an annular groove 13 substantially cylindrical in cross-section and which constitutes a socket in which are mounted thev circular off-sets 14 of the crimping elements, and by such an arrangement the crimping elements are fulcrumed so as to swing loosely in the carrier 3. VThe extension 12 constitutes a means for limitingthe inward movement of the crimping elements 8 as clearly shown in Fig. "1.

Each of the crimping elements 8 consists of a strip of thin metallic material cut away `to provide the circular off-set 14 which is angularly-disposed with respect to a fiat upper edge 15, such edge 15 being of such length as to project outwardly from the carrier 3 so as to be engaged by the pressureexerting member "ir when said member is moved downwardly by the piston 2 to actuate the crimping elements 8. The crimping elements 8 are so disposed as to have a tendency to extend inwardly when in inoperative position and each of the elements is formed with an inclined crimping edge 1T terminating at its inner end in a recess 19. The edge 17 conforms to the top of the periphery of the bottle neck below the bead 11 and the wall of the recess 19 is adapted to crimp the cap around the bead 11 and the recess -19 allows for the edge 17 to swing inwardly below the bead so as to compress the lowei` portion of the cap around the neck of the bottle below the bead.

The crimping elements 8 are annularly disposed with respect to the carrier 3 and are circumferentially positioned around the extension 12 and are further spaced from each other with the space formed between each pair of elements gradually increasing in width outwardly, whereby clearances will be provided for the ribs on the cap after crimping when occasion so requires. As before stated, the crimping elements are independently shiftable with respect to each other so that the die will automatically adjust itself to any irregularities in the bottle neck when the edges 15 of the elements 8 are engaged by the member 7 so that the pressure upon the elements, due to the operation of the member 7 will be evenly distributed throughout whereby the cap will be laused to perfectly fit the bottle neck when secured thereto, thereby preventing any liability of leakage. As before stated, the edges 15 of the elements S are adapted to be engaged by the pressure-exerting member 7, and that edge of the member 7 which engages the edges 15 and which is indicated by the reference character 2O is rounded.

The carrier 3 is formed of two parts which are suitably connected together and which permit of positioning the circular olf-sets within the socket 13. ln this connection it will be stated thata plurality of crimping elements 8 are mounted in each of the parts or sections of the carrier after which the sect-ions are lixedly secured together, thereby securing the crimping ele` ments to the carrier.

When, the die and its operating mechanism as shown are normal, the pressure-exerting member 7 has the upper portion thereof positioned above the carrier 3 so that a space 21 is formed. This allows for the necessary movement downwardly of the member 7 when it is shifted to actuate the elements 8 to crimp the cap 9 after the cap is held by the piston 1.

rllhe headed member L constitutes what may be termed a holdingdown medium for the cap 9, in this connection it will be stated that after the cap hasv been placed between the crimping elements and the bottle positioned, the piston 1 moves downwardly carrying the headed member 4f therewith and also the carrier 3, the head (l of the member et engages the cap 9 and owing to the exerting of pressure upon the piston 1 the head 6 will securely hold the cap upon the neck of the bottle, the parts being in the position as shown in Fig. 2, the piston 2 then moves downwardly shifting the member i' therewith, the edge 20 of said member engaging with the edges 15 ofthe crimping elements S will swing the crimping elements inwardly causing the crimping edge ofeach of the elements 8 to engagel the cap and crimp it upon the bottle neck around the bead.

That I claim is:

A bottle crimping die comprising a carrier having a centrally-disposed depending cylindrical extension and further having surrounding said extension an annular groove constituting a socket, a concentric` row of crimping elements surrounding `said extension and arranged in close proximity to each other and each consisting of an inwardly curved body-portion having a relatively long flat upper edge and a circular off-set projecting from the upper inner corner of the body-portion and fulcrumed in said socket, the upper edge of each of said sections projecting beyond said carrier and normally lying at an acute angle with respect to the axis of the carrier, each of said elements further provided with an inclined crimping edge terminating at its inner end in a recess, a vertically movable pressure exerting member surrounding the carrier and adapted to engage the projecting portion of the flat upper edges of said elements for movinO said elements inwardly to crimp the cap around the bottle neck.

In testimony whereof I affix my signature in presence of two witnesses.

ROSS V. GRAGGS.

lVitnesses WILLIAM O. EDMoNs'roN, ROBERT N. CRAGGS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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