US949957A - Die. - Google Patents

Description

M. FALK.

DIE.

APPLICATION FILED JULY 14, 1908.

A 5 W z A N I K L F K 1 I M w''nessee: bu enlar:

Norma fir/k tinrrn MORRIS FALK, OF LEOMINSTER, MASSACHUSETTS.

DIE.

Specification of Letters Patent.

Patented Feb. 22, 1910.

Application filed July 14, 1908. Serial No. 443,472.

To all whom it may concern:

Be it known that I, MORRIS FALK, a citizen of the United States of America, residing at Leominster, in the county of Vorcester and State of Massachusetts, have invented certain new and useful Improvements in Dies; and I do hereby declare that the following is a full, clear, and exactdescription of the same.

This im'ention relates to cutters and presses particularly designed for forming ornamental backs or bodies of barrettes which are more especially made of celluloid or other like material which can be worked in a pliable state.

An object of this invention is to provide novel means for producing a die and press which is capable of cutting and ornamentiug a body at a single operation in which the die is adjustable with relation to its base for the purpose of making the said die capable of operating on materials of different thicknesses.

A great advantage derived by the use of a die of the character indicated is the saving of stock to the extent of more than twentyfive per cent.

In using a die constructed in accordance with this invention, the stock may be quite thin and being operated upon when the stock is in a pliable condition, the stock may be pressed from the edges inwardly toward the center making a thicker middle portion for the back of the barrette while the edges are in a perfect form but thinner than the central portion ready to be polished and packed for market. Again a die construct ed in accordance with this invention may operate upon material which is uneven and by using a press in connection with the die the product will be smooth and the edges will be perfectly cut, requiring no further treatment than polishing.

lVith the foregoing and other objects in view, the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, ref erence will be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, in which- Figure 1, is a perspective view of the stamp; Fig. 2, is a perspective view of the material of which the body is formed after it has been cut; Fig. 3, is a perspective view of the die and its base: Fig. 4, is a longitudinal sectional view of the parts shown in Fig. 3; and Fig. 5, is a plan view of a barrette back with plain edges and with an ornamental design thereon. Fig. 6 is a detail sectional view of the die and press, showing their coacting relation, and, Fig. 7 is a fragmentary view of the press showing the same provided with fluted edges.

In these drawings A, denotes a shank which may be connected to a power press, B, the head thereon, and C, a press carried by the head which is designed to cooperate with the die D, which is supported in a suitable housing E, on the base F, and said die D is provided with a knife edge adapted to coact with the knife edge of the housing E.

In operation, as the press is reciprocated with relation to the die, material interposed between the press and die is cut in the configuration of the die said die being curved inwardly in concave form to coact with the convex press C and as shown in Fig. 2, the product G, is a piece of material that has been cut and it will be observed that the edges are irregular to correspond to the contour of the die, by which ithas been cut, butit is obvious that the material may be cut in any suitable shape or form desired as is well known in the art. This, however, an immaterial point and may be changed according to the particular article desired to be produced.

As has been hereinbefore stated, the material which is treated is preferably pliable and as the press descends, the material is pressed inward from the edges of the die toward the center and hence the central portion or the central zone of the plate which has been cut is thicker than the material around the edges. As has been stated, the material treated may be suitably ornamented as shown at H, in Fig. 5, and if desired a barrette body or back may be produced having straight edges as shown in said figure, and in producing a barrette body of this design, it is obvious that a die in the particular shape shown on the product in Fig. 5 would be used, and the die correspondingly changed in the other design without departing from the spirit of the invention.

The base F, has apertures I, therein which receive the pins or screws J, entering holes in the bottom of the housing E, and it is by this means that the housing is secured by the base. The base is further provided with apertures K, threaded to receive the screws L, and said screws are adjustable for the purpose of regulating the position of the die D, in the housing, and it is by means of said screws K, that the position of the die is changed in order that the action will be uniform regardless of the thickness of the material operated upon.

The top surface of the base is provided with recesses M, in which springs N, are seated, the said'springs preferably extending above the upper surface of the base a distance of. the thickness of the wire forming the spring, although this is an immaterial detail and the relation thus indicated need not be maintained. The under surface of the base is provided with recesses 0, communicating with the recesses M, and screws P, pass through the said recesses and enter screw threaded apertures (l, in the bottom of the die. The screws I hold the springs in place and retain the die in position on the screws L.

By reference to Fig. 5, it will be understood that what might be termed the central zone of the finished product is thicker and ornamented while the marginal Zone thereof is thinner which form is obtained by pressing the material in the manner stated, and as will be readily understood by one skilled in this art.

In using the die and its supporting device, the die is adjusted with relation to the base and the housing by means of the screws L, and when the material operated upon is relatively thick, the said screws L, will be adjusted to permit the die to lie near the base, whereas if the material operated upon is relatively thin, the adjusting screws L, will be moved to support the die a greater distance above the base in order that the press which has a stroke of predetermined length may act on the thin material with the same de gree of efliciency that it can act on the thick material when the die has been properly adjusted. The die has a limited movement in the housing to the extent of the distance between the head of the screws N, and the inner walls of the recesses O. This is well shown in Fig. 4, and will be apparent from an inspection of saidfigure.

I claim v 1. In a die stamping machine, for barrettes or the like, a base having threaded apertures therein, screws threaded in the apertures, a housing supported on the base, said housing having a knife edge, a die supported by said screws, said die being adjustable in close proximity to the edge of the housing, said base having a second series of apertures therein, springs for normally distending said die within the housing, and means for retaining said springs in their operative position.

2. In a direct die stamping machine, a base, a housing supported thereon, said housing having a knife edge, a die fitted in said housing, said die being concaved and provided with knife edges, said base also having screws threaded in apertures therein positively supporting said die, and means for normally holding said die above said screws.

3. In a die stamping machine, a base, a housing, supported on said base and having a knife edge, pins for securing said housing to said base, a die fitted in said housing, and provided with a knife edge coacting with the knife edge of the housing, screws threaded in apertures in the base for supporting the die, springs seated in apertures in the upper face of said base, screws extending through said apertures and springs, said screws being threaded in the apertures in the under side of the die and means for pressing the material on the die.

a. In a die stamping machine, a base having threaded apertures therein, screws threaded in the apertures from the under side thereof, a housing secured to said base, said housing having a knife edge extending in an upward direction, a die fitted within said housing, said die having a corresponding knife edge coacting with the knife edge of the housing, said base also having recesses in its upper side, springs seated in said recesses, screws extending loosely through the recesses and springs, said screws being threaded into the die and a press coacting with the die.

MORRIS FALK.

Witnesses:

O. A. TAFT, E. M. BROWN.

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