US253250A

US253250A - Erastus woodwabd

Info

Publication number: US253250A
Authority: US
Publication date: 1882-02-07
Anticipated expiration: 1899-02-07

Description

(No Model.)

B. WOODWARD. METHOD 0]? PREPARING HEADED TAGKS FOR USE.

Patented Feb. 7,1882.

|N\/ENYTE| Q07 ,4 R

WITNESSES Q/JZa/ed/ 16 UNTTED STATES PATENT @EE c ERASTUS \VOODYVARD, OF SOMERVILLE, MASSACHUSETTS, ASSIGNOR TO THE COPELAND TAGKING AND LASTING COMPANY, OF PATERSON, N. J.

METHOD OF PREPARING'HEADED TACKS FOR USE.

SPECIFICATION forming part of Letters Patent No. 255250; dated February '7, 1882,

Application filed December 5, I881. (No model.)

To all whom it may concern Be it known that I, ERASTUS WoonWARD, of Somerville, in the countyof Middlesex and State of Massachusetts, a citizen of the United States, have invented a certain new and useful Improvement in the Method of Preparing Large Headed Tacks for Use, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in ex plaining its nature,"in which- Figure 1 represents, part in elevation and part in vertical section, a portion ofthe tackdri-ving machine adapted to be used with the.

machine described in my application for Letters Patent allowed November 1, 18S1,in practicing this process. Fig. 2 is a vertical section on the line 0000 of Fig. 1, representing the throat or die of the machine and the driver or punch, enlarged. Fig. 3 is a detail view, hereinafter referred to. Fig. dillustrates a portion of my tack-setting machine adapted for use in practicing this process. Figs. 5 and 6 are enlarged views of the throat or die of said machine, and the driver or punch employed therewith.

In the various patents granted George W. Copeland and myself there has been described machinery for sorting tacks in bulk, and for driving or setting them into a flexible supporting or carrying strip. Other patentsgranted to, me relate to mechanism for driving tacks from said tack-strip; but in all these patents the tacks are not changed from their original shape, and this has not been necessary, because the machines as organized have been adapted only for using what is commonly known as lastingtacks-t-hat is, a tack having a comparatively small head and a quite short but slender and sharp shank. It is desirable for many purposes, however, to use a tack having the features of the said lasting-tack, but larger in all respects, except the head,whieh may vary in size according to the use to which the tack is to be put. But the ordinary loose tack of the proper size has a head much larger than is necessary or even desirable for a great many purposes, and especially is this the case in tacks used for fastening the outsole to the upper or insole, either in sole-laying, as it is called, or in permanently fastening the outsole to the insole. It is at the same time very desirable to use these ordinary lasting-tacks of the market, because they are a well-known and staple article, cheaply made, and because they are easily driven and the points clinch readily and well upon the iron botto'ni of the last.

My invention consists in the method of preparing these large-headed tacks having long sharp shanks for use; and it comprises the shearing, punching, or removal of a portion of the head of each tack to reduce the size of such tack preparatory to orin the act of driving; and for the purpose of practicing this process Iwill describe how the machine above referred to for'ma'king-the lasting-tack strip, or for driving tacks therefrom, may be' used. Substantially the only difference between the said machine and those which I employ for practicing this process consists in making'the driver of the tack setting or driving machine act as a punch, and so constructing the machine about the throat that a sufficient support for the head of the tack shall be provided, and that it shall act as a die in connection with the punch, whereby a part of the head of the tack may be sheared oft".

In Figs. 1, 2, and 3 the punch and die of my tack-driving machine constructed so as to practice this process are represented; and in Figs.

4, 5, and 6 the driver and throat of my tack-- 8o setting machine are represented as adapted for use in practicing this process. In each instance A represents the driver or punch, and

B the die or throat. There is about the throat or die a horizontal table, rest,-bed, or support, 0, upon which the head of the tack or its supporting-strip rests,the upper portion of the shank of the tack being in the throat. And here let me observe that in the tack driving and setting machine as heretofore constructed 0 by me the throat of the machine has always been large enough to receive the head of the tack, and the flat support in the tack-driving machine and about the throat was used for holding the tack-strip, and not for holding the 5 head of the tack, and therefore that the construetion materially difiers from that shown in said machines.

In operation the tack having been fed into the die,its head rests upon the bed about it, and the punch or driver descends and drives the shank of the tack and a portion of the head through the die.

In Fig. 2 I show the position of the tack-strip and tack in relation to the die or throat and driver or punch immediately before the descent of the driver; and in Fig. 31 representthe tack as having been forced through the die and its head reduced in size thereby.

In Fig. 5 I show a single tack in position in the throat preparatory to the descent of the driver, and in Fig. 6 I represent the tack after it has been driven through the throat and with the head reduced.

Of course it is immaterial for the purposes of my process when this reduction in the size of the tacks head is made; bit when tacks of a large size are to be used it is preferable that the heads be left large until they are driven from the tack-supporting strip, in order that they may be securely held in the strip.

Of course this method of preparing large headed tacks for use may be practiced either during the making of the tack-strip or the driving of the tack, or preparatory thereto, as desired.

Having thus fully described my invention, I

claim and desire to secure by Letters Patent of 30 BoWDoIN S. PARKER, .T. E. Gnlsr.