US97015A - Improved die for making- shears - Google Patents

Description

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SOLOMON H. WOODS, OF BERLIN, ASSIGNOR FOR' ONE-HALF TORUSSELL S. GLADWIN, OF WEST MERIDEN, CONNECTICUT.

IMPROVED DIE POR MAKING SHEARS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may conce-rn:

Be it known that I, SOLOMON H. WOODS, of Berlin, count-y of Hartford, and State of Connecticut, have invented a new and useful Il nprovement in Dies for Forming Scissors and Shears;`aiid I do hereby declare the following to be a full, clear, and exact description of the saine,refcrence being' had to the accompanying drawings, and to the letters of reference marked thereon; said drawings constitute part of this specification, and represent, in

Figure 1, a face view of' 'the lower die; in

Figure 2, a face view ofthe upper die; in

Figure 3, a vertical cross-section of the two dies tO- gether, taken 'through line X X, and showing the couvex surface of the portion of the dies which form the aperture in the centre ofthe circle or bow ofthe handle; in

Figure 4, a view ofthe blank, after it is forged,and before it has beenoperated on by the dies; and in Figure 5, -a-view of the same, after passing through the dies.

VSimilar letters of reference, when they occur in the separate figures, indicate like parts.

My invention relates to an improvement in dies for forming the one-half of a pair of scissors or shears, (blade, shank, and bow,) from a blank formed by forging orotherwise approximating in shape to that of the finished article.

The object of my invention is to provide a means of rapidly forging this class of cutlery, and to furnish an article of superior quality at a price much below the present market value.

To enable others skilled in the art to make and use my improved dies, I will .proceed to describe their construction and operation.

A is the lower die, and is provided with an. indentation, a b, sunk `in its surface. The portion aof this indentation receives the blade of the article, and the other portion, b, receives one-half the handle, as shown in fig. 1.

B is t-he upper die, and is provided with an indentation, to exactly correspond with the portion marked b of the lower die. As the blade a is formed entirely upon one side, this portion ofthe upper die is left flat and smooth, as shown in fig. 2.

c is a small apertureor groove, for the purpose of admitting the rod to which the article is attached, and upon which it is held until it is finished. Before the metal is placed in the dies, it is drawn luider a hammer from a rod Or bar, to forni the blank as near as possible to the rpropel' shape and size, and the said blank is left in form similar to that shown in fig. 4. it is next placed in the dies, to be swaged or forged.

`The dies are set in operation, and as they strike the metal, the tendency is to spread and fill the indenta# tions. v

The portions C C of the dies which form the aperi ture in the bow or handle maybe made slightly convex, as shown in fig. 3, in order to facilitate the opere ation,and more eifectually spread the metal from the .solid lump. I do not, however, consider it absolutely necessary to make the said portions in this form,` as a flat surface may be made to'auswer the purpose.

The portions C C, whether flat or convex, operate first upoh the lump, or portion of the blank which forms theI handle, pressing '-it` outward, and forming the aperture.

After'thearticle has passed through the dies, there will be a thin film of metal around the edges and across the bowor circle of the handle. This makes it necessary to pass' it through a set of trimming-dies, which cut away all the superfluous amount of metal, and leave the article ready for finishing.

lBoth of the two parts ofa pair of scissors can be made under one set of dies, as the said part-sare eX- actly alike, and by placing the flat portions of the -bladcs together, they are brought into position for rivet-ing and use.

In shears, however, where the handles are of different dimensions, two sets of dies must be used-one set for each portion or half of the pair.

My improvement lis equally adapted to any size of scissors or shears. The size of the dies in each case must, of' course, be adapted to the size of the article to be formed.

It may also be adapted to making the kind of shears styled slip-shears, which are used by mechanics for cutting tin or other sheet-metals. For this purpose, I make a set of dies which shall form simply the circle or bow ofthe handle u pon the bar, using the saine form as before described for pressing the metal ontward and into the proper indeutations in the dies, and forming the aperture in the centre of the said circle or bow.

I do not, broadly, claim a die for forming the blade of the scissors, as such is not new; but

'hat I do claim as new and useful, and desire to secure by Letters Patent, is-

Ihe dies, constructed as shown and described, for forming scissors or shears from a wrought blank, substantially in the manner as herein specified.

SOLOMON H. WOODS.

Witnesses:

GEORGE W. SMITH, Emst-IA H, WELLns.

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