US378111A - Horseshoe-machine - Google Patents

Description

(No Model.) V3 Sheets--Sheet 2.

Z. V. PURDY.

l HGRSESHOE MACHINE. No. 378,111. Patented Feb. 21, 1888.

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V3 Sheets-Sheet 3.

(No Model.)

Z. V8. PURDY.

-HoRsBsHoB MACHINE,

Patented Feb. 21, 1888.

No. 378,11l`I @wi/inem Pnewumogmphm. wnmngnm n. c.

Unirse drains Parietti @trice ZACHARAH V. PURDY, OF BRMINGHAM, ALABAMA.

HORSESHOENACHIN SPECIFICATION forming part of Letters Patent No. 378,111, dated ebrnary 2l, lf

Serial No. 235,674. (No InodeLl .To @ZZ whom it may concern:

.Be it known that I, Zaun/Antan V. PURDY, a citizen of the United States, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Horseshoe-Machines, of which the following is a specitication, reference being had therein to the accompanying drawings.

This invention relates to certain improvements in machines for forming horseshoeblanks; and it has for its objects to so construct the parts that they can be conveniently adj usted and reguiated so as to bring the proper pressure upon any desirable point of the blank during its formation to forni blanks of various sizes and weight, as more fully hereinafter set forth. illustrated in the accompanying drawings, in whichm Figure l represents a top or plan View of myirnproved machine complete, with aportion broken away; Fig. 2, a longitudinal vertical sectional view of the same; Fig. 3, a transverse vertical sectional view taken on the line x x of Fig. l; Fig. a, a perspective view of the parts, detached, which bend the bar from which the blank is constructed around the blanki'orining die. Fig. 5 represents a view ofa portion of the bed of the machine, showing the forming-die, anda portion of the guide and blank-delivering mechanism. Fig. 6 indicates a perspective view ofa series of guides or gibs whereby the jaws of the blank-bending arms are guided to bend the blank bar around the forming-die, and Fig. 7 a detail perspective view oi one of the parts of the machine.

The letter A indicates the bed of the machine, suitably mounted upon supports B. Midway between the ends of the bed, at opposite sides thereof, are located pillow-blocks C, forming bearings for the journal of the crankshaft l), which has at one projecting end a driving-wheel, E, by means of which it may be put in motion by a bandrunning from a suitable pulley.

To the crank-shaft are pivoted the pitmen F, which extend in opposite directions and are connected with the traveling cross-heads Gr, which slide on ways H at opposite sides of the bed of the machine, by means of the adjustable connections H', which l are provided with These objects I attain by the meansr shanhs I, setting in longitudinal recesses at the ends of the pitmen, wherein they are adjustably confined by means of the bindingscrews L. The cross-heads, near opposite ends, on the under side are provided with recesses M, in which are pivoted the jaws N, which bend the blank bar around the forming-die. The cross heads at opposite ends are formed with tongues P, which are arranged to slide between the upper and lower guides R, which are adjustably secured to the bed of the machine by means of the screws S. Between said guides aresecured the adjustable gibs T, which have their inner edges of such conformation as to force the jaws N against the blank bar and bend it around the forming-die as they are advanced by the pitinen and cross-heads. The jaws N at their forward ends are recessed and provided with anti-friction rollers U, which bear against the inner edges of the gibs as the jaws are advanced toward the forming-die.

The guides R and the interposed gibs are confined between the bed of the machine and the metallic guide-plates V, the said plates being provided with curved cani-grooves X, in which work the friction-rollers Y on the studs Z, in order to open out thejaws and return them to normal position when the traveling crossheads are drawn back.

Thejaws N are beveled on their inner forward edges, as indicated by the letter A', and are provided with cutting-edges B to cut oft' a suitable length of the blank bar, which is fed in through groovcd guides C at one side of the machine, the adjustment as to the length of such cut-off portion being regulated by the lower guide-plate R on the opposite side of the machine to that from which the blank bar is fed.

TheletterD'indicatesthefo1'ming-dies,which may constitute part of the bed of the machine, or may be formed separately and attached thereto by any suitable means. The configurationof such dies is approximately that of the interior of the horseshoe-blank to be bent around it. The forward edges of the crossheads are curved, as indicated by the letter E', so as to conform to the contour of the toe of the forming-die, in order to properly shape the toe of the shoe-blank as it is bent around the forming-die.

` ln the bed of the machine, at each. side of I charged.

thc forming-dies and at their outer edges, are formed converging grooves F', which have inclined surfaces G upon which the lifting-fingers II ride to raise and deliver the blank, when formed, through delivery-openings in the bed of the machine. These tin gers are pivoted to traveling carriages IZ and are provided with lateral guide-lugs K, which ride upon the inclined guides L and direct the ngersin their movement. The carriages are mounted upon wheels which travel upon platforms M secured to or forming part of the bed of the machine, and the said carriages are connected to the traveling cross-bars by means of the arms M2, pivoted between bearings N, secured to said cross-heads Gr.

rIhe operation of my machine is as follows: It will bc perceived that it is intended to form a blank at each end of the machine as the bending devices are moved back and forth. The blank bars are fed in through the grooved guides C at the side of the machine at the proper time, and as the jaws move forward a proper length is cut off by the cutting-edges before mentioned. The forwardly4 moving cross-head and the jaws then gradually' force the separated portion against the formingdie and bend it around the same as the parts are advanced. Vhen bent upon the return movement of the parts, the pivoted fingers traveling in the grooves at lthe sides ofthe formingdie ride up on the inclined bearings therein and lift the blank therefrom and carry it toward the delivery-opening, where it is dis- By reason of the adj ustahle connec tions of the cross-heads by which they are connected to the pitmen it will be apparent that said cross-heads may be so adjusted with re snect to the forming-dies as to regulate the thickness of the shoe-blank at will by varying the pressure thereon, and by adjusting the gibs inwardly or outwardly the width of the sides and heels may be also regulated by bringing more or less pressure upon the jaws. rIhe length of the blank bar out off is regulated by means of the lower guide-bars at the sides of the machine, which, being moved outwardly or inwardly, permit the blank bar to be gaged for a separated portion of greater or less length, as may be desired. In order to cool the metal and the partsfof the machine, ai r-blast pipes may be arranged at eac-h end of the machine, by means of which cold air may be applied to the metal and t-hc parts of the inachiue for the pu pose.

The letter K2 indicates a datt-er, which is secured to the traveling cross-head and extends over the traveling cross bar, the object of which is to hold the blank down around the forming-die during the bending operation, so as to keep the shoe-blank true during the bending.

In order to relievetheadjustable connections between the pitinen and cross-heads of undue strain, adjustable angle-irons (see Fig. 7) are fitted to the ends, which take up and bear the strain which would otherwise come upon the same.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

l. The combination, with the traveling crossheads, the bending -jaws, and the forming dies HX, ofthe fingers working in converging grooves at each side of the forming-dies,and the traveling carriage to which said fingers are at tached, the grooves having inclined bearing surfaces upon which the fingers ride to lift and deliver the blanks when finished, substantially as specified.

l2. The combination, with the bed of the machine, the traveling cross-heads, and the jaws provided with cuttingedges for severing the bar, of the adjustable guides and gibs and the grooved bar -gnides whereby the blank bar may be fed to the machine and gaged and cut, substantially as set forth.

3. The combination, with the bed ofthe niachine, the traveling crossheads, and the formingdies, of the bending-jaws provided with cutting-edges for severing the bars. the adj nstable guides and gibs, the grooved bar-guides,

the fingers HX, their carriage, and theinclined guides L', substantially' as described.

4. The coxnbinatiomin a horseshoemachine, of the traveling cross-heads curved at E and actuated bya crank, the pitinanrods and their adj nstable connections with the said crossheads, the forming-dies, the bending-jaws pivoted to the crossheads and provided with eutters and anti-friction rollers, the laterally-adjustable guides and gibs, the fingers HX and their carriages, and the arms M2, pivotally connecting the carriages to hearings on the cross` heads, all substantially as described,

5. The combination, with the horseshoe` forming dies and their jaws and the traveling cross-heads, of the tlattcrs Y, secured to the cross-heads between said jaws, and alapted to operate substantially as described.

6. The combinatiomwith the cross-heads,the pitman-rods and their connections with said cross-heads, of the angle-irons K, the horse shoe-forming dies and jaws, the guides and gibs, the cam-slotted plates V, and the datters K2, all substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

ZACHARIAH V. PURDY.

iVltnesses:

C. M. ALEXANDER, M. P. CALLAN.

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