US7645A - Spike-machine - Google Patents

Description

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lllIl"llllllllllIE5IIlHlllllllllllllllllllll W "l"IllIl|||lIlIlIIIIIIIIIIIIIIIHIIIIIIIIIIIIIIIIIIIIIIIIIII ...mmmlllllllllll UNITED STATES PATENT OFFICE.-

WILLIAM BLAKE, OF BOSTON, MASSACHUSETTS.

SPIKE-MACHINE.

Speccation of Letters Patent No.

To all whom t may concern.'

Be it known that I, WILLIAM BLAKE, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new or Improved Machine for Making Spikes from Wrought iron, copper, or any other malleable metal or composition of metals capable of being made into spikes thereby; and I do hereby declare that the same is fully described and represented inl the following specifications and accompanying drawings, letters, iigures, and references thereof.

Of the said drawings Figure l denotes a top View of my said machine. Fig. 2 is an elevation of one side of it. Fig. 3 is an elevat-ion of the other side of it. Fig. t is a front end elevation of it. Fig. 5 is a rear end elevation of it. Fig. 6 is a central longitudinal and vertical section of it. Fig. 7 is a horizontal section of the swedging rollers, and their stationary guide cams. Fig. 8 is a transverse and vertical section of it, taken just in front of the carrying pincers. Fig.. 9 is a longitudinal section of the rod spout, and the shears or machinery by which the spike rod is introduced in to the machine and a spike blank cut from it.

The machinery by which a spike is made, consists, first, of that by which it is introduced into the machine, seized, and held while being severed by the shears, and afterward moved down to the pointing mechanism; second, of the shears for removing a l spike blank from the rod; third, of the heading mechanism and that for moving the spike blank forward between the griping surfaces; fourth, of the 'griping or holding mechanism; fifth, of the pointing mechanism; sixth, of the mechanism for discharging or expelling the spike from the machine after the completion of the pointing operation.

In the drawings above mentioned the main working parts of the said machine are represented as supported by a strong frame A, suitably made, which fra-me has a driving shaft B, arranged at or near its rear end, and supported in suitable -boxes one of which is seen at a, in Fig. 1. On this shaft a fly wheel B, is fixed. Besides the main shaft, there are two secondary horizontal shafts C, D, and onetertiary shaft E, all of which derive their motions from the main shaft through three spur gears E, G, H, and two Y 7,645, dated September 17, 1850.

bevel gears I, K, the shafts and gears being arranged as seen in the drawings, the gear G, being fixed on the main driving shaft, the gears F, and H, on the shafts C, D, respectively, while the bevel gears I, K, are `fixe-d on the shafts D and E.

From the front end of the frame a bar L,

is made to extend horizontally, and to have a spout M, hingedto its outer end in such manner as to enable the inner end to be raised or lowered; the said inner end being supported upon a spring N, which is fastened to t-he bar L, and has a notched block or saddle piece b, for the spout to rest in. i The inner end of the spout or conductor terminates near a stationary shear or knife cl, that operates 1n connection wlth the movable cutter or shear e, which 1s affixed to a lever f, that turns up and down on a fulc-rum i or pin g, supported by two standards L, z'. A cam c, fixed on the tertiary shaft E, operates on one end of the lever f, and dep'eses it during each revolution of the s a. t.

The spike rod or bar of met-al from A which the spikes are to be formed, is laid in I the spout or conductor, and its advancing end pressed down, and entered between the shears. The rod or bar is next forced forward longitudinally through the opening of f the shears, and into the opening of the heading nippers Z, m, until its end is brought up against a screw stop n, represented in Figs. 1 and 6, by dotted lines. The nippers are two levers placed one above the other, and I,

made to turn on the fulcrum or pin g. Their tail or outer ends, as well as the tail end of the upper shear, have retracting springs applied to them, as seen at n, o, 79. A cam Q, fixed on the tertiary shaft E, depresses-the nippers, when the upper shear is moved down, and in accordance with the downward movement thereof; the nippers not only serving to support the spike blank, or piece of metal severed from the spike rod, but to under side of a lever R, which turns vertically on a fulcrum at S, and is tilted so as to move t-he gripperQ, down toward the gripper P, by means of a cam'T, fixed on the secondary shaft C. A retractive spring U, is applied to give motion to it in the opposite direction.

The header O, slides freely back and forth in a longitudinal direction, and through a box V. It is connected to the upper end of a rocker lever lV, by means of a pitman'or shortconnecting rod X, suitably jointed to it and t-he lever. At the rear end of the machine is another and similar rocker lever Z, which is connected to the first one by a horizontal rod Y, jointed to both. The rocker shafts of these levers are seen at 7, s. During each revolution of the shaft B, a cam t, fixed on it, acts against the upper end of the rocker lever Z, and so as to move it back, and thereby draw the rocker lever XV, inward and cause it to force the header up toward the nippers. A retractive spring u, afterwards produces motion of the header in the opposite direction.

The next part of the machine is that by which' the spike is pointed. Two blocks, or strong frames o, w, are respectively jointed to two horizontal slides 0 0, y, and in such manner as to permit the front or outer ends of these frames to be moved toward or away from each other, the oint pins being seen at a, Zi. The two slides y, are each of the form vertically as seen in Fig. 6, they being each made with a recess e, for the recept-ion of one of two cams, which are fixed on the secondary shaft C (one of the said cams being shown at e, Fig. 6,) and which serve to act against the rear sides of the recessesof the slides, and force the said slide rearward. To each slide a retractive spring as seen at f, is attached, for the purpose of producing a Amotion of it in the opposite direction at the proper time. The longitudinal back and forth, and simultaneous movements of the slides, will of course produce similar movements of the frames or blocks fu, fw.v

Two rollers g, It', or z", c, areplaced within each frame or block, o, w, as seen in Fig. 7. The two middle rollers L, i', are termed swedging rollers, while the two outer ones g, la, arev cam rollers, because they roll against two fixed or stationary cams or vertical curved surfaces Z, m, which are each shaped in accordance with the curve or shape we desire to give tothe pointed portion of thespike. While the blocks or frames fv, lw, are simultaneously moved backward, the swedging rollers 'are brought into Contact with the opposite vertical sides of the spike blank, and gradually forced toward one another, so as toA swedge, or draw down, or point the end of the spike in the manner required. l l j vThe heading of the spike is produced vn the mean time by the action of the header whose inner end is recessed properly for the purpose. The carryingand heading nippers are provided with dies Z2, m2, for forming the spike head where it is joined to the body of the spike into the shape of a frustrum of a quadrangular pyramid, as seen at a4, Fig. 10, the said figure being a representation or side view of the spike.

After the spike has been made, it is discharged from the machine by the operation of a discharger n', which is arranged as seen in Fig. 6, andis a projection from a rocker lever 0, which is jointed to the inner end of a horizontal lever p', (represented in Fig. l, by dotted lines,) whose outer end is seen in Fig. 3, and as jointed to a horizontal slide rod g. This rod g', is jointed toa rocker lever 7", which is actuated or moved by a cam s', fixed on the secondary shaft B. A retractive spring t", applied to the slide rod Q', and the main frame, throws backward the slide rod, when released from the action of the cam a ainst its lever, and thereby causes the disc arger to be suddenly moved against the spike, so as to force it forward, and out ofthe machine, the nippers having been previously separated, or opened wide enough to allow the spike to fall freely through them.

A spring latch or catch u', is so arranged,

that while the nippers are being depressed to their lowest position, its hooked end shall be pressed over by the lower nipper, and made to pass into a recess formed in the end of the nipper. This spring catch serves to hold the lower nipper down until the spike has been expelled from the machine.

The upper nipper being free to rise upward, it does so immediately after the operation of the heading has been completed, and just before the operation of discharging the spike takes place. As soon as the spike has been discharged the spring catch is drawn away from the end of the lower nipper, so as vto enable it to rise upward, or be raised by the actionl of its retractive spring. vThe machinery by which the spring catch is drawn away froml the nipper, consists of a cam o', (projecting from the side of the nipper cam on the tertiary shaft,) a spring lever w', and a catch hook, or connecting rod o2, extending from the spring lever tothe spring latch, and properly jointed or connected to the spring lever and the latch. During the vrotation of the nipper cam, the cam pin fu', meets and presses outward the upper end of the spring lever, and thereby draws the spring ,catch out of the recess of the lower .nipper, so as. to allow the said nipper to rise upward. Y

1. I claim the heading and carryin nipneotion therewith substantially as above my signature this fifth day of June A. D. specified. 1850.

2. And in Combination With the lower npper I claim the spring catches7 latching WM' BLAKE 5 and unlatching apparatus, applied to it forl l Witnessesz the purpose above speoied. R. H. EDDY,

In testimony whereof I have hereto set l CHAS. JAS. SPRAGUE.

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