US1098696A - Punch. - Google Patents

Description

G. L. THUM.

PUNCH.

APYLIOATION FILED PEB. 1o, 1913.

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GEORGE L. THOM, OF BROOKLYN, NEW YORK, ASSIG-NOR TO WILLIAM WALLACE MCLAURIN, OF BROOKFIELD, MASSACHUSETTS.

PUNCH.

Application led February 10, 1913.

To all 'whom 'it may concern Be it known that l, Geenen L. Triton, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful lmprovements in Punches; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is a punch and has for an object to provide a number of dies carried in a single outfit comprising a pair of operable handles, a die member and a piece against which said die member is adapted to bear after penetrating the article t be punched.

Figure 1 is a sectional view of a punch constructed in accordance with my invention having parts thereof in elevation. Fig. 2 is a series of views showing the die members in section. Fig. 3 shows the die members in elevation. Fig. t is a horizontal sectional view showing the cam 'faces of the several die members. Fig. 5 is a side elevation of my device. Fig. 6 is a side elevation of the punch showing the parallel bars arched for a portion of their lengths adjacent the anvil and die members. Fig. 7 is a modified form of an anvil to produce a circumferential movement with respect to the die members.

Referring more specifically to the drawings 10 indicates a pair of handles pivoted to one another as at 11 and to parallel members as at 12. These parallel members are designated by the numerals 13 and 14 and as shown have the forward ends of the handles 10 secured thereto to permit the swivel movement between these members 13 and 141 and the handles 10 while the fastening means 12 adjacent the rear ends of these members pass through slots to permit sufficient movement when the handles are swung together. The member 13 is provided with the head 15 in which is mounted a plate 16 which may be of zinc, lead, or any other suitable material. The member 111 is provided with the head 17 having the flange 18 thereabout and having pins 19 secured thereto as shown.

The numeral 20 indicates a screw for holding several parts to the head 17 to be hereinafter described. A series of annular Specification of Letters Patent.

Patented June 2, 19.1.4.

serial no. 747,441.

die members 21, 22, 23 and 24: are placed in the cupped head and are provided with keyways to accommodate the pins 19 so as to permit vertical movement of the die members but to restrict circumfercntial movement thereof. Any one of the four die members may be disposed to present its cutting edge beyond the remaining three and this is accomplished by means of a member 25 having a central portion to receive the bolt 2O after passing through a plug 26 weich plug is held against rotation by its engagement with one of the pins 19. The ends of the bars of the member 25 terminate in thumb pieces 27 by which this member may be manipulated and the ends of this member extend through the slots 28 in the wall 1S to limit the movement of the member 25 in both directions. To assist in determining which one of the several die members is projected by the movement of the member 25, a series of index figures 29 may be formed in the wall 18 adjacent to the slots 28. Each of the several die members may be made of single pieces of material and slotted or they may be made 0f two pieces of metal in view of the difficulty in treating tool steel. ln any event cams 30 are formed on each, of the die members so that when the several dies are assembled the cams of the several dies are disposed in advance of the adjacent one so that the of the member 25 will engage one or another of the pairs of cams in any position within its movement. The upper wall of each slot conforms .with the lower one so as to return the die member into inoperative position when that particular die is not desired for usage and in the event of each of the die members being made of two pieces of material fastened t0 one another in any desired means, the numeral 31 indicates the upper piece of each of the dies.

The parallel bars 13 and lll are shown arched for a portion of their length as in Fig. 6 to permit the gathering of a quantity of material in said archedI portions when it is desired to punch a piece of fabric at a distance from the edge thereof.

In the modification shown in Fig. 7, the head 32 has a trunnion 33 which is mounted in a bearing 341 formed in the socket 35 carried by the bar 13. A ratchet 36 is formed on the head 32, and a pawl 37 which receives its movement by its fastening with the rivet 12 engages a ratchet to set up a partially rotary movement to the head 32 at each manipulation of the handles. This paWl may be made of resilient material to eliminate the use of an additional spring, or the spring 38 may be used to maintain the engagement of said paWl and ratchet.

Further modifications may be made Within the scope of this invention such as modiied means in moving the several die members With respect to one another as by cam slots in the several die members and lugs carried by the adjacent die members to engage said cam slots.

Having thus described my invention, l claim:

l. In a punch, movable members, an anvil carried by one of said members, a plurality or" dies carried by the other of said members and means to project any one of said dies beyond the others.

In a punch, movable members, an anvil carried by one of said members, a plurality of various sized dies nested one in the other carried by the other of said members each of said dies having movement with respect to its supporting medium and means carried by the supporting medium for projecting any one of said dies beyond the others.

3. In a punch, movable members, an anvil carried by one of said members, a plurality of dies carried by t-he other of said members, each of said dies having a limited movement with respect to its supporting medium and means carried by the supporting medium for extending any one of the several dies beyond the others.

4L. In a punch, a supporting member, a

plurality of die members of different diameters, said die members being nested each of said die members having an irregular surface, said irregular surfaces of said die mem` bers having stepped relation with each other and means carried by said supporting member for engaging said irregular surfaces to extend any one of said die members beyond the others.

5. ln a punch, movable members, a plurality of dies carried by one of said'memb ers, an anvil carried by the other of said members, and means for moving said anvil circumferentially upon manipulation of the punch.

(i. In a punch of the class described, a supporting member having a cup shaped socket formed therein, a plurality of die members of dierent diameters disposed therein, means carried by said supporting mem-ber to engage said die members to prevent rotation thereof, each of said die members having a cam face formed thereon, and rotatable means carried by said supporting means for engagement With said cam faces formed on said die members to extend any one of said die members beyond the others.

In testimony whereof I aiiix my signature in presence or' tivo Witnesses.

GECRGE L. THOM.

Man PERRY, j HELEN ANNA VAN ETTEN.

Copies o! this patent may be obtained for' ve cents each, by addressing the Commissioner of Patents, Washington, D. G.

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