US8342A - Hook-heading motion foe spike-machines - Google Patents

Description

M. HARDAWAY, or TROY, NEW YORK.

HOOK-HEADING MOTION FOR SPIKE-MACHINES.

Speccationrof Letters Patent No. 8,842, dated September 2, 1851.

T0 all whom if may concern.' a

Be it known that I, Moonn HARDAwAY, of the city of Troy, in the county of Rensselaer and State o-f New York, have invented certain new and useful Improvements on the Machine for Making Hook-Headed Spikes; and I do hereby declare the following to be a full and clear description of the construction and operation of the same, reference being had' to the annexed drawings of the same, making part of this speciiication.

Figure l, represents a plan or to-p view of the machine. Fig. 2, is aside elevation of ditto. Fig. 3, is a vertical longitudinal section,-the header having headed the spike and the pointing die shown as pointing the same. Fig. 4, is also a vertical longitudinal section, the header being in a position to descend to bend the end of the rod downward. Fig. 5, is a sectional View, showing the position of the steel cutting plate, after a piece of iron of the proper length has been cut from the rod, headed, pointed, and ready to be delivered from the dies.

The same letters of reference indicate the same parts where they occur on the above figures.

My improvement consists in the employment of a header in such a manner that when the rod of iron shall have been fed into t-he dies, the header will be made to descend and bend the end of the rod downward, and after a limited pause in the movement of the header, be made to advance horizontally and press said rod againstthe dies and thus form the hook head.

A, is the frame supported upon legs B, B. C, C', are the dies secured in bed plates D, D, the die C being made to open by means of helical springs E, E, to discharge the spike and closed by the action of a cam F against a horizontal bar F2 confined by .staples H, within which it slides.

T, is t-he header for forming the head of the spike confined in a bed J, in the center of the frame and extending longitudinally from the dies C, C, to the main cam shaft Gr, to receive the action of a cam K, thereon for imparting to the header at the proper interval the forward movement to complete t-he Jformation of the hook head.

Directly above the header and near the middle thereof is a shaft L, having its bearings in studs M, mounted on the frame, and

containing a cam N, for imparting to the header the descending movement.

Beneath the header and on the bed J there is secured a helical spring O, for imparting to the header its receding movement after having been relieved from the cam K, and near its front-ward end is a helical spring O2 for elevating the same after the formation of the spike, in a position to form the head of the succeeding spike, as shown in Fig. 4.

P is a steel die attached by any convenient means to the end of an arm P2 projecting downward from the horizontal transverse shaft C3, having its bearings in studs mounted on the frame, and having its end made convex for pointing the piece of iron to complete the spike by passing over the same.

From the horizontal transverse shaft C3 there extends a lever Q, connecting with a cam wheel R, on the main cam shaft G by a rod S, by which the rock shaft and pointing die are actuated. The device for separating a piece of iron of the proper length from the rod to form the spike consists of a horizontal steel plate T, bent at right angles at its inner end to form the cutter T2 and also a continuation of the face of the stationary die C, after the pieceA of iron has been separated from the rod, by the outward movement of the cutting plate which is connected to the end of a vibrating bar U, extending rearward to receive the action of a cam WV, on the wheel (R) and confined near its center to the frame A, by a pin (ai) on which it vfibrates, so that when the cam W, is made to act on the rear end of the bar U, its frontward end will be forced outward and with it, the steel cutting plate T, and thus separate the piece of iron from the rod simultaneously with the frontward movement of the pointing die.

The inward movement of the cutting plate T, after the )oar U, shall have been relieved from the cam 7, is effected b v means of a helical spring X, confined in the stud. (M) of the shaft (L) and made to press against the bar (U) and bear its rear end outward-the inward movement of the cutting plate being governed by a pin Y, near the frontward end of the bar-and its inner end beingheld in its proper position by two staples (s, 8,) during its movement. The cam shafts (L) for actuating the header I, are geared by toothed wheels (c, 0) one of which being provided with a "spring" ,dog (d) which passes over the tieetliuotthe same, during its rotation,"and pre'ven s it turning back during the action of t-he cam Shafts; Y .v Operation: The header I being ninthe position seen in Fig. 4 andthewdeswcfb opened ;-the rod of iron (previously heated to a red heat) ixsV fed betwee'n tllefs'meftind the inside of the right-angled end of the steelf cutting plate' T 'beneath' the vendi of the header-the main-camshaft@ then lroft'ated, and? the pieceI oi:"'ironl clampedbetween the dis to; 0,by'th`e"actdnf yof 1 the cam (F). 5 Atv` this'momentfthe'"cam (N)jfon the shaft (L) is made'to act upon the 'header and bear it 1downward and 'with it,"bend" the endofthe p'iece'lof iron-and vafter a pause the cam (K) on the `cami'shaftf (1G) A'fis made to yact "against the' end' 'of the header I, and force it frontw'ard andwith it,` th'ebent end of the p'iecef'of ironagainsty "thdendL of" the movable dieI andthu's forms thiJ hook'he'ad 25 s'e'eFig '3. The'v onfthe"'wheel-(R) is thenjniadelto' act on the end dtth'ebar (V) *and press it"inward,` 'and orceitsk frontward end with the cutting plat-ie l"l, outward, andlthus 'separate the piece ofi-ron to'formftlie'sp'ik'e from" the rodthere being a' rece'ssin' the stationary die fto 'receive the end of the' rodand rightangledporti'on' of the cutting plat'e'so as not to interfere with the :movement of the pointing die afterrthe separation. During this operation'theend of'thelever"(Q) is dravvndow'n by"itsfcon' y rounded e'id'b'f the steel die over the same.

The movable die C then opens and the header rlses andrecedes,-and the cutting plate T, is made to move inward and the rod of iron isagain'ed-betweenthe dies-"- when-'the same operation is repeated,l vand so on the spikes being made in succession, and delivered from thel dies throughthe opening,;Z. f' I y, I

Having thus Ydescribed my improvements on""the'-machne for makingliookA headed spikes, whatfIclaim as new and of my own invent-ion and desire vvto secure by Letters Patent, is,--

, I The employment of a header, madeto have' a descending' andi' afterward a horizontal frontward movement yfor theypurpose of first bending the end of the piece of iron downward and thenforoing it horizontally against the endof the die C and thus form a hook head as described and represented.

In testimony whereofY I have d, vhereunto signed 4'my name before twov subscribing witnesses. 'Y l Y.' MOORE HARDAWYf f Witnesses: 1 i 'y W.-TICE,

f H; R. BALDWIN.f

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