US1413722A - Process of forming jaws for game traps - Google Patents

Description

H. G. GREENE.

PROCESS OF FORMING JAWS FOR GAME'TRAPS.

APPLI'CATION FILED APR. 12. 1920.

1,413,722, Patented Apr. 25, 1922.

2 SHEETS-SHEET I.

H. e. GREENE, PROCESS OF FORMING JAWS FOR GAME TRA PS.

APPLICATION FILED APR. 12, I920.

Patented Apr. 25, 1922.

2 SHEETS-SHEET 2- 12, 11 13 y v 7 I r 4 a r I ll I INVENTOR.

' t BY. 7

ears

" cries.

nonnnrnon e. GREENE, or. oNEInA, EW YoEK, AssIeNo ror InMPH TRAP 00.,

met, on ONEIDA, NEW ORK, A CORPORATION on NEW YORK.

PROCESS 01F FORMING JA'WS FOR GAME TRAPS.

Specification of Letters Patent. Patented Apr. 25, 1922.

Application filed April 12, 1920. Serial No. 373,054.

To all whom it may concern:

Be it known that 'L'Honnnmcn G. GREENE, residing at Oneida, in the county of Madison and State of New York, have invented'oertain new and useful Improvements in a Process of Forming Jaws for Game Traps, of which the following is a specification.

This invention relates to a new and improved process of forming blanks of sheet metal, and in the present embodiment of my invention I propose to illustrate and describe it as adapted to form blanks out of which jaws of game traps are constructed.

One of the objects of the invention is to provide a process of forming blanks out of sheet metal, such as steel, which not only minimizes a waste of raw material, but which is carriedon by a single continuous operation, and wherein the tools required for carrying on this operation are so simple that a minimum amount of repairs is required to maintain the tools in an operative condition.

Another object of the invention is to provide a process of forming blanks for jaws of game traps wherein the right and left hand jaws for a game trap are separately produced and separately discharged, thereby making it unnecessary to assort the form blanks preliminary to further operations.

, Other objects and aims of the invention more or less specific than those referred to above, will be in part obvious and in part pointed out in the course of the following description of the steps and the relation of each step to one Or more of the others thereof employed in carryin out my-process, and the scope of protect on contemplated will be indicated in the appended claims.

In the accompanying drawings, wherein I have illustrated preferred forms of embodiment of my invention:

Figure 1 illustrates the male die employed in carrying out my improved process.

Figure 2 illustrates the female die employed in carrying out said process;

Figure 3 is a bottom plan View of Figure 1. Figure 4c is a bottom plan view of Figure 2. Figure 5 illustrates a. strip of metal, suitable for utilization in carrying out my improved process, and showlng one stage of the process.

Figure 6 a View of the same blank at a further stage in the process.

Figure 7 is a similar view of the blank in still a. further. stagein the. process.

Figure 8 shows the blank preliminary to completing the final step of the process; and

Figure 9 is a plan view showing one of the completed blanks ready to be formed into a trap jaw. I

Referring now to the drawings, wherein similar reference characters refer to similar parts-throughout the several views thereof, the reference numeral 1 denotes a plate or base member upon which is mounted the dies or punching members 2, 3 and 4.

5 indicates another plate or basemember, in which is formed apertures 2, 3 and a. These apertures constitute the female part of the die employed in carrying out my inrproved process. 1 The punch 3 co-operates with the aperture 3", the punch 4L- cooperates with the aperture 4C; 1 j

It will'be understood that in practicethese dies are mounted one abo-ve'the other on the respective jaws of a press, so that when the press jaws are reciprocated, the punches will be caused to make and enter the correspondingly formed recesses or apertures located directly therebeneath. I I 1 In carrying out my process a stripof material, preferably steel, is employed,'said strip being cut to the eXact' width required for blanking out a pair of trap jaw blanks, that isto say, the blank is of such width as will permit the same to be split longitudinally to provide the aforesaichblanks.

' 2 cutting fromthe blank the small triangular part 7, and the punch 3 cutting therefrom the small substantially" square portion 8.

The part 7 cut"from the blank is waste material, and the part S-is merely asufficient port-ion cut from the blank to trimthe starting endof the material with a minimum loss.

Nl1en' this operation has been accomplished by a single stroke of the press, the strip is then moved forwardly to its second station. In this operatlon, that is to say, upon the next operation of the press jaws, the end p This strip, 'whlch 1's. designated as '6, is fed endwlse of the punch lmerely splits longitudinally the surplus overhanging stock shown at 9 in the dotted lines of Figure 6, the punches 2 and 3 operating to cut from the blank the waste portions indicated in Figure 6 at 10 and 11.

It will be noted that at this stage the parts 12 and 13 of the strip are connected at 14- with sufficient material to hold said parts together so that the strip can be moved onwardly or forwardly to the third station.

l/Vhen the strip 6 is in the third station, the die or punch 4: shears and separates two blanks, as shown in Figure 7, said blanks being designated 15 and 16, the blank 15 being shown in dotted lines, bein forced entirelythrough the female part of the die, and the remaining waste material indicated at 17, being separated from the end of the blank.

It will, however, be noted that the jaw blank designated at 16 is still attached to the adjacent material as at 1 The strip or bar is then moved into the fourth station, in which station the cutting edge 18 of the die .or punch shears the small remaining connection between the blank 16 and the connecting stock, discharging the jaw blank 16 in a separate chute. Thereafter the strip or bar 6 is moved forwardly intermittently, there being one forward or onward movement of the stock for each operation of the press, whereupon at each operation of the press two jaws are formed, the jaws 15 being discharged in the third station, and the jaws 16 being discharged in the fourth station; and further, at each operation of the press the waste parts indicated at 10 and 11 are cut from the stock. The waste portions 9 and 17 are cut from the blank only at the initial operations, when the free end of the stock isbeing inserted into the press.

It will accordingly be seen that I have provided a process well adapted to attain, among others, all the ends and objects of the invention above pointed out, in a very simple yet efficient manner. In carrying out the process it will be noted that save for the initial operation, when the waste is to be cut from the end of the stock, the only waste or loss of material sustained is the two sub stantially triangular parts 10 and 11 which are cut from the stock in order to properly shape the trap jaw blanks.

It will also be noted that the operation is substantially a continuousone, the strip or bar being merely inserted between the jaws of the press and moved intermittently therein, whereby as above stated, two complete jaws are formed at each operation of the press.

As many changes could be made in this construction without departing from the scope of the following claims, it is intended that all matter contained in the above description or shown in. the accompanying drawing shall be interpreted as illustrative only and not in a limiting sense.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. The herein described process for forming the jaws of game traps, consisting in providing a strip of metal having the width of two blanks, preparing the end of the said strip by cutting out at one operation one corner portion and an edge portion on the opposite side near the said end leaving an unsevered portion at the end, then cutting off at one operation a part of the said unsevered end portion and cutting out portions on opposite sides of the strip at a distance from the said end, then at one operation splitting the strip longitudinally and cutting off the remainder of the unsevered end portion and cutting out portions on opposite'sides of the strip at a distance from the cut-out side portions first mentioned the said operation detaching one formed blank, and then at one operation splitting the end portion of the strip longitudinally to the said out out edge portions mentioned second and detaching the second and third blanks and forming cut out portions on opposite sides and at a distance from the severed end of the strip.

2. The herein described process of forming blanks for the jaws of game traps, consisting in providing a strip of metal of a width equal to the width of two blanks, and as a first step cutting away at one operation a portion of one corner of the end of the strip and a portion of the opposite edge of the strip near the said end leaving a portion of the end of the strip unsevered, then ad'- vancing the strip and as a second step at one operation cutting off a part of the said unsevered portion at the end of the strip and cutting out portions adjacent to each other on opposite sides of the strip and at a distance from the said end, again advancing the strip and as a third step at one operation cutting off the remainder of the said unsevered end portion ofthe strip and shearing longitudinally the portion of the strip eX- tending between the said end and said ad j acent cutout edge portions thereby detaching one formed blank and leaving the second formed blank unsevered andkalso cutting out adjacent portions on oppositeedges .of the strip as before at a distance from the said adjacentcut out edge portions first mentioned, and agam advancing the strip and as a fourth step cutting off at one operation the said unsevered blank and shearing longitudinally the portion of the strip extending to the said cutout edge portions mentioned second thereby detaching a third formed blank. 1 i

3. In a process for forming blanks for the jaws of game traps, a die comprising male and female members, the male member having near one end tWin'right-angled triangular projections spaced apart and extending in different directions and having their bases aligned transversely of the said male member, the said member having also near the other end a third projection having the form of an elongated right-angled triangle with its base or shortest side parallel with the corresponding sides of the said twin projections, and the sald female member having openings corresponding in contour to the said cutting projections of the male memher.

4. The herein described process of producing blanks for the jaws of game traps, which consists in providing a strip of metal of a width equal to the width of two blanks, cutting away portions of the edges of given lengths of said blank, shearing each of said blanks longitudinally thereof to separate a blank from said strip, and then shearing the remaining blank from said strip.

5. The herein described process of producingblanks for the jaws of'game traps, which consists in providing a strip of metal of a width equal to the width of two blanks,

cutting away portions of the sides 'ofone length of said strip to form the end of one blank, simultaneously cutting away the portion of the opposite edge of the next preceding length of said strip to form the end of another blank, shearing the first mentioned length of said blank longitudinally to sever a jaw blank therefrom, and severing the next succeeding length from said first men tioned length to form another blank.

In testimony whereof, I 'afiix my signature, in the presence of two witnesses. HOLDRIDGE Gr. GREENE. Witnesses:

CHARLES H. WILsON, F. E. ADAMS.

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