US182843A - Improvement in machines for forging horseshoe-nails - Google Patents

Description

4Shee'ts-Sheet'1. ,J. MIL-LS. MACHINE FOR FORGING HORSESHOE-NAILS. No.182,843, Patented. 0ct.3,1876..

".PUHS, PHOTD-LITHOGRAPHER, WASHINGTON, D. .C. v I

4 Sheets-Sheet 2.

J. M I L L S. M; MACHINE FDR FORGIN'G HORSESHQE-NAILS. *"11 N 0 182, 8 43 Patented. Oct. 3, 18 1 6.

WI NE SES r INVENTOR ATTORNEY6 N.PETERSv FNOTO-LITHOGHAPNER, WASHINGTON, D C

4 Sheets-Sheet 3.

J. MILLS. MACHINE FOR FORGING HORSESHOE-NAILS.

Patented 0ct.3,18'.76.

ATTORN EYS WITNESSES MPETERS PHOTO-LITHOGRAPHER. WASHNGTON n C.

4 Sheets-Sheet 4.

J. MIL-LS. MACHINE FOR FORGING HORSESHOE-NAILS. No.182,843.

Patented Oct. 3, 1876.

INVENTOR 'HLLQQ4,

WITNESSES ATTORN EYS NJFETERS PHOTO LHHQGRAPHER. WASHINGYON, n c

UNITED STATES PATENT CFFIGE.

JAMES MILLS, OF KEESEVILLE, NEW YORK.

IMPROVEMENT IN MACHINES FOR FORGING HORSESHQE-NAILS.

Specification formingpart of Letters Patent No. 182,843, dated October 3, 1876; application filed July 7, 1876.

To all whom it may concern:

Be it knownthat I, J AMns MILLs, of Keeseville, in the county of Essex and State of New York, haveinvented certain new and useful Improvements in Horseshoe-Nail Machine; andI do hereby declare thefollowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improved horseshoe-nail machine.

Figure 1 is a side elevation of the machine. Fig. 2 is a plan view, with hammer-shaft removed. Fig. 3 is an end elevation of the machine Fig. 4, a plan view, with the necessary parts removed to show the position of the several cams. Fig. 5 is a view of the hammer carrying and operatingshaft. Figs. 6 and 7 are views of the rod or pitman connecting shaft and striking-hammer detached. Figs. 8 and 9 are detail views of the hammer-shank and hammer. Figs. 10 and-l1 are detail side and front views respectively of the anvil and cutter carrier, with anvil and cutter in position. Fig. 12 is a sectional view of the above at-the line 2 2 of Fig. 11. Fig. 13 represents endand top views of movable cutter and cutter-holder andframe, with screw for securing the same. Fig.14is a longitudinal section of the nail-blank griper, straightener, and releaser, showing mannerof operation. Fig. 15 is an end view of above at z of Fig. 14. Fig. 16 is a planview of devices shown in Fig. 14, and of nose-piece lever. Fig. 17 is a side view ofnose-piece lever, with devices for moving it vertically and laterally.

The invention consists in the parts and combinations as hereinafter specified and claimed, wherein A represents-the frame of the machine,

which may be of any suitable construction or material. Bis the camshaft carrying main cog-wheel 0, the preferred proportions of which to thepinion P are as ten to one. It also carries cam-wheel D for straightening nail-blank,

nail-blank. The cam c on wheel D is so formed that a slight primary impulse is given. to the mechanism for straightening the kink in the nail-blank until just before the finishing of a nail, when it suddenly increases, imparting a quick jerking motion, whereby the kink in the nail bl ank is sufficiently removed. E is the hammer-carryin g and hammer-operatic. g shaft. It is provided with two cylinders, f and h, rigidly attached and eccentricallyplaced to its axis, and the hammer-carrying cylinder g, centrically placed.

The purpose of cylinder f is to counterbalance the eccentricity of cylinder h. Motion is imparted directly to the shaft E, which, through the medium of beveled gear lo and p and pinion P on shaft 0, imparts motion to the main cog-wheel O on-shaft B. F is the revolving rolling hammer, whose shaft is journaled in short standards 9 projecting from the periphery of cylinder g. G is the pitman, which impartsmotion to the oscillating striking-hammer H. On one end of it is fixed the sleeve Z, which fits over the eccentrically-placed cylinder h, while the other end has formed in it the socket 171. in which rests the pin 0 of the hammer-shank K. .H is the oscillating striking-hammer attached to its shank K. I is the stationary hammer or die fixed to its shank or bracket K. ishank K is formed into two arms provided with sockets, in which work the pinsaa as fast 'ened to the frame of the machine. It has also the pin 0, which works in the socket m of the pitman, as before stated.

L L are two standards fixed on the frame of the machine, in which rest the journals of shaft E. M is a crank on said shaft, to which the power is applied. N is a bar, sliding in lbox Q or othersuitable bearing, and provided at its slotted end with a small friction-wheel, a, or its equivalent, whichbears against the surface of cam-wheel D, the cam e whereof, when it comes in contact with the frictionwheel, causes the bar to slide, and at the same time to move the griping-jaws U and V, with the latter of which the sliding bar is connected by the rod to a corresponding distance. The

purpose accomplished by this will be hereinafter set forth. The spring 1? or its equivalent, fixed to standard L and pressing against the The lower part of the h.ammerinner end of the sliding bar, returns it to its position, when the cam c has passed beyond the friction-wheel n.

O is the shaft, which, through the medium of the beveled gear and pinion P thereon, transmits motion from shaft E-to B. R R are standards fixed on the frame of the machine for the support of shaft 0. S is the anvil and cutter carrier pivoted at its lower end to the frame of the machine, and provided with opening J, through which the shaft B passes. It carries the anvil to and from other devices, which will be hereinafter described. m and m are the stationary cutters, secured thereto near the anvil, as shown.

The reciprocating cutters l and l are attached and held in place as follows: X is a plate or cutter handle, which slides in grooves in the anvil-carrier S, and has a top'plate, p. This top plate extends beyond both sides of the handle X, but is even with the edges thereof. It is rabbeted to one-half its thickness on the two edges at right angles to handle X, and thus on each side a short groove is formed between handle and top plate. The cutters Z Z are placed herein, their upper and inside edges in contact with the rabbets, and a short part of their under side, near the middle, resting on the handle. A frame, j, is then passed over the end of each cutter and its corresponding arm of the top plate, and by the screw 8 the cutter is firmly securd. To one side of the anvil-carrier at b is pivoted a lever, Y, having an arm, a. This lever fits into a notch of the cutter-handle X, and depresses it when the cam a on shaft B comes in contact with the arm a. Depressing the cutter-handle of course depresses the cutter at its upper end. 0 is a spring, which presses the arm Y upward when cam 11 ceases to operate,'and anadjustable stop, h, limits its return movement. Into the opening J of the carrier S projects the cam c, which operates in connection with the cam 12 on shaft B.

When, in the operation of the machine, the two cams b and e cease to oppose each other,

' the anvil-carrier is drawn aside by means of a strong spring attached to frame A, and connected with the carrier by rod t'. T is the lever which carries at its end the nose-piece 2. It rocks upon afulcrum placed in standard a, or it may be suitably journaled to the main frame, and has a vertical movement induced by the link 1", which latter connects a stout spring or strap, secured on lever T, with an arm of the hammer-shank. The extent of the vertical movement of the lever T can be regof lever T isregulated, and it is held in place by a spring attached to the frame of the machine. A guard, 0, prevents the lever T from moving beyond a certain point. This may be adjusted as desired. The lever T has also a short arm, 20, extending laterally from its under side, which is acted on by the cam c on shaft B, for the purpose of dropping the nosemoving it away from the spring or strap before mentioned.

U is the upper nail-blank griper, having on;

its under surface a pin, a, which projects through griper V, and is acted on bycam-lever or nail-blank releaser W, which, in turn,

is acted upon by cam 01 on shaft B, effecting the release of the nail-blank by lifting up griper U.

The lower nail-blank griperVfits in a groove wider than itself, so as to allow the requisite amount of lateral play to remove from the nail-blank the kink formed during the operation of hammering.

The operation of the machine is as follows:

The nail-blank is presented to the anvil through the nose-piece z, and is held firmly by the gripers U and V. It receives its first stroke from the striking-hammer H, while being held a short distance above the anvil by the nose-piece, and at the instant the revolving rolling hammer is in the elevated posi-V tion. A half-revolution of shaft E brings the rolling-hammer into operation, and, through the medium of eccentric cylinder h, withdraws the striking-hammer, and, by means of link 4, lowers the nose-piece so that the nail-blank rests on the anvil. ing and eight by the striking hammer complete the hammering operation, which are de-' livered alternately with each other. At the instant of the eighth stroke by the strikinghammer, the cam e on wheel D operates the nail-blank gripers, forcing them outward, whereby the kink which has been formed in the nail-blank between the anvil and gripers, by the process of hammering, is removed. Immediately succeeding this operation, the cam b on shaft B, and the cam e of the anvilcarrier, cease to oppose each other, and the anvil-carrier is drawn aside by spring j. This brings the hammered part of the nail-blank 'that has been formed into the shape of a nail,

over the opening between anvil and movable cutter. At the next instant, the cam 0 on shaft B acts. to drop the nose-piece, bringing the nail in position to be operated upon by Seven strokes by the rollthe cutters, which are at once brought into action by the cam a on shaft B, acting through the medium of lever Y on cutter-handle X, depressing the cutters Z" l, which latter can be placed parallel to stationary cutters m m, or at an angle therewith, to produce a shearcut. The nail, thus severed at its head and point, drops out of the machine. At the instant that the cutters perform their part, the cam 01 on shaft B operates the nail-blank releaser W, which acts on the pin a of the griper U, raising it from the surface of griper V, thus releasing the nail-blank, which is then fed forward for another operation.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a striking-hammer and stationary hammer or die, of a revolving rolling-hammer and an anvil, vibrating in a plane transverse to the line of action of said rolling-hammer, substantially as and for the purpose described.

2. The combination, with a striking-hammer, a stationary hammer or die, and a re volving rolling-hammer, of an intermittentlyoscillating anvil and cutter-carrier, constructed so that the cutters and anvil are alternately brought into operative position, substantially as and for the purpose described.

3. In a horseshoe-nail machine, the combi nation, with the feed-lever T, carrying nosepiece z, of the stationary and striking hammers or dies, and the combined anvil and cutter-carrier, intermittingly vibrating at right angles to the plane of action of the revolving hammer, substantially as described.

4. The combination of cam-Wheel D, slide N, and griper-jaws U V, substantially as and for the purpose described.

5. The anvil-carrier S, having anvil Z, stationary cutters m m, cutter-holder X, lever oscillating anvil-carrier S, of the stationarycutters m m, and movable cutters Z Z, arranged so that the nail is cut simultaneously at head and point, substantially as and for the purpose described.

9. The combination of gripers U V, nailblank releaser W, and shaft B, having cam 01, substantially as and for the purpose described.

10. The combination of nose-piece lever T with standard a and lever r, substantially as and for the purpose described.

11. The combination of shaft B, having cams a b c d, of anvil-carrier S, nose-piece lever T, and griper U, substantially as and for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES MILLS.

WVitnesses H. M. MITCHELL, J. D. KINGSLAND.

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