US599436A - John batey - Google Patents

Description

(No Model.)

J. BATBY. MECHANISM FOR READING AND BENDING WIRE SPOKES. No. 599,436.

Petented Feb. 22, 1898.

UNITED STATES PATENT JOHN BATEY, OF DUBLIN, IRELAND.

MECHANISM FOR HEADING AND BENDING WIRE SPOKES.

SPECIFICATION forming part of Letters Patent No. 599,436, dated February 22, 1898.

Application filed October 2, 1897.

To aZZ whom it may concern:

Be it known that 1, JOHN BATEY, a subject of the Queen of Great Britain, residing at 47 Heytesbury street, Dublin, Ireland, have invented certain new and useful improvements in mechanism for forming a head on one end of wire spokes for wheels and for bending over'this end at an angle, of which the following is a specification.

Wire spokes for wheels have to have a screw-thread cut on one of their ends and a head formed on themat the other end, and this latter end has also to be bent over at an angle. To thus form a head on one end and bend it over at an angle, I employ a machine constructed as hereinafter described. In this machine the wires which are to be headed and bent are placed into a hopper, from which they pass, one by one, into grooves cut longitudinally along the circumference of a roller, to which a step-by-step revolving motion is imparted, one of the grooves in the roller being brought at the end of each partial turn below the hopper, so that a wire may drop into it. As the roller turns, the wires in the grooves are carried around with it and are brought into successive positions in which the wires are gripped and held firmly into the grooves and prevented from moving endwise. While so held in the first of these positions, the end of the wire is subjected to repeated blows from a small hammer and may be treated in a similar manner by a second hammer at the second position and, if desired, by a third hammer in a third position, and at the last of the positions the end of the wire is bent over at an angle. Finally the wire is carried around to a portion in which it is allowed to drop out of the groove in which it was lying andis discharged from the machine.

The drawings hereunto annexed show a machine constructed in the above manner.

Figure 1 is a side elevation, and Fig. 2 an end View, of the machine, the lower part of the frame being cut away. Fig. 3 is a horizontal section on the line a b, Fig. 2, of that end of the machine at which the wires are headed and bent. Fig. i is a section taken through one of the toggle-lever grippers, and Figs. 5 and 6 are separate views of the swage mechanism for bending the headed ends of the wires. Fig. 7 shows separately the roller Serial No. 653,785. (No model.)

spindle, with one end disk or portion of the roller fast with it. The other disk or portion of the roller may be movable along the spindle to suit different lengths of wire. Fig. 8 is a side elevation, and Fig. 9 is an end elevation, of one of the cylinders E, carrying the incline E Fig. 10 shows one of the guides S separately.

In the figures, A is the hopper containing the wires to be headed and bent. The throat or delivery-mouth of the hopper is a narrow channel down which the wires descend in a horizontal position, one above the other, in a single layer. Below the end of the narrow throat is a roller B, having longitudinal grooves formed along its circumference. The roller might be a solid roller; but preferably it is, as shown, formed of aspindle B, carrying two disks B, one fast with one end of the spindle and the other movable along the spindle, so that it may be fixed to it at any desired distance from the first disk. The ends of the spindle are supported by fixed pivotpins 0 D. Each disk or end of the roller B is surrounded by a short cylinder E, part of which is cut away where the hopper-mouth passes through it and where the wires are discharged from the machine. The short cylinders E may be carried by or. form part of standards F G, which are fixed to the bed of the machine. The standard F has a short axis F projecting horizontally from it. The spindle B passes freely through the center of this axis, and a cam-wheel H can revolve freely around its exterior.

B is a ratchet-wheel fast on the spindle B. By it a step-by-step revolving motion is given to this wheel and so to the roller B by a pawl B The pawl has motion given to it from a rocking lever B, one arm of which is acted on by a cam projection II on the cam-wheel H. The circumference of the wheel H is formed as a cog-wheel. A pinion I on a driving-shaft I gears with the teeth of this wheel, and a continuous revolving motion is so imparted to it. The driving-shaft is carried in bearings fixed to the bed ofthe machine.

In the outer face of the cylinder G, which surrounds the other end of the roller B, are three radial grooves. In each of these radial grooves lies a slide J, which can be moved toward or away from the roller B by toggle-le vers J. One end of these levers is jointed to the slide and the other to a block J fixed to the cylinder G at the outer end of the radial groove. The central joint of the toggle-levers has a rod L connected to it. This rod is led away parallel with the axis of the roller B, and at its farther end carries a roller L, which lies in a cam-groove L formed around the boss of the cam-wheel H, and by this cam-groove an endway to-and-fro motion is imparted to the rod, and the toggle-levers are thereby alternately caused to thrust the slide J up to the roller 13, so that it may nip and hold one of the wires lying in a groove in this roller, and subsequently to move the slide J away from the roller and release the wire. The rod L at its end which carries the roller L is square and is supported by guide blocks L carried by the standard F, and is guided by them in its to-andfro motion. The rods are in two parts, connected by short coupling-tubes L with right and left hand screw-threads, so that their length may be adjusted and each slide J, when moved up to the roller B, be thereby caused to grip the wire that is lying opposite to its end with sufficient firmness.

M is a plate secured to the face of the cylinder G. By it the slides J are retained within the radial grooves in the cylinder. Standing out from the outer face of the plate M are three pairs of projections M. One end of a radial hammer-arm N is jointed to each pair of projections. The other end carries a hammer-head N. The hammer-arms are radial and each time that the roller 13 is brought to rest one or other of the grooves in it is brought into the same radial plane as each arm. The arms also are each of such a length that the hammer-heads carried at their ends may strike against the ends of the wires carried in such grooves. One end of a rod N is jointed to each hammer-arm N. The rod extends through openings in the standard G and through guides in the standard F, and at its farther end carries a roller N which is acted on by a notched cam-surface N formed around the inner face of the cam-wheel H near its circumference. One end of a coiled spring N bears against a collar on the rod. The other end of the coiled spring bears against oneffor other of three arms which extend outward from a cylinder 0. This cylinder is concentric with the roller 13 and extends from the standard F to the standard G and forms part of the fixed frame of the machine. The three arms extending out from the cylinder 0 also carry guide blocks to guide and steady the rods L and N in their to-and-fro movement.

P is a bracket fixed to the plate M and carrying a pivot-pin D for supporting the end of the spindle B. The plate also carries on its inner face a block Q. The block fits against .the circumference of this end of the roller B and relieves the pivot-pin D from all strain at the time when the slides J are thrust inward toward the roller and are nipping wires contained in its grooves.

The short cylinder E, which surrounds the end of the roller 13 farthest from the hammers, has a plate E fixed to its outer face. The ends of the wires lying in the grooves in the roller B rest against the inner face of this plate. After each wire has been brought into position for its opposite end to be acted upon by two of the hammers and as it is being carried around to be brought into position to be acted on by the third hammer an incline E on the plate E" (see Fig. 8) causes the wire to be moved a short distance endwise along the groove in which it is lying. The end of the wire which has a head formed upon it is thereby made to project somewhat more beyond the outer or swage face of .the roller B and beyond the outer face of the slides J, which is in the same plane with it, in order that this end of the wire may be bent over at an angle. The bending over of the end of the wire is effected by a swage R, jointed to an arm P which extends from the bracket P. Normally the swage is held at an angle to the face of the roller B by a spring R, as shown at Fig. 6. The third hammer is caused to strike three or other number of blows on the swage and thereby to bend over the wire to the desired extent,

The action of the apparatus is as follows: The roller B is rotated with a step-by-step movement by the action of the cam projection H on the cam-wheel H. At the completion of each partial rotation one of the grooves in the roller Bis below the mouth of the hopper and a wire drops from the hopper into the groove, At the same time other wires in other grooves in the roller B are brought into positiOn to be acted on by the three hammers. As the cam-wheel H continues its rotation the cam-groove L formed around the boss of the cam-wheel H, causes the wire which is to be acted on by the first hammer to be gripped and held in the groove in which it lies, and while it is so held the first hammer is caused to strike three blows upon its end by the action Of three inclined projections of the camsurface N of the cam-wheel I-l. Each incline acting on the roller N thrusts the hammer back, and when the summit of the incline has tinued rotation of the cam-wheel, the camsurfaces L and N cause the wire which is to be acted on by the third hammer to be gripped and held and the swage which is to bend over its end to be struck three or, it might be, a less number of blows by the hammer. If this scend into the wider depressions and not into hammer is to strike a less number of blows, this may be effected by making the depressions in the cam-surface N of varying sizes and by making the roller by which this hammer is actuated of such a size that it can dethe narrow ones. In the one case the hammer strikes a blow and in the other does not strike a blow. After the third hammer has struck its blow or blows the cam-surface H causes the roller B to make another partial turn. The wire which has thus had its end bent over is carried into a position where the wire is free to drop out from the groove in which it was lying and passes from the machine and the same operations are repeated.

S S are guides between which the hammerarms pass as they strike a blow. These guides are fixed to the plate M, as shown in Figs. 2 and 3.

What I claim is 1. The combination of the hopper,the roller having grooves formed along its circumference, mechanism for giving a step-by-step revolving motion to the roller, the grippingblocks for gripping some of the wires to the roller close up to one of its ends, each time that the roller comes to rest, and hammers for striking the ends of the wires while they are so held.

2. The combination of the hopper, the grooved roller, means for giving a step-bystep revolving motion to the roller the gripping-blocks for gripping some of the wires to the roller close up to one of its ends each time that the roller comes to rest, the toggle-levers actuating these blocks,the hammers for striking the ends of the wires while they are so held, and the three revolving cams one imparting movement to the mechanism used for giving a step-by-step revolving motion to the roller, another actuating the hammers, and the third actuating the toggle-levers which impart movement to the gripping-blocks.

3. The combination of the hopper, the

grooved roller, means for giving a step-bystep revolving motion to the roller, the grip ping-blocks, the toggle-levers actuating these blocks, the hammers, the three revolving cams, one imparting movement to the mechanism used for giving a step-by-step revolvin g motion to the roller, another actuating the hammers and the third actuating the togglelevers which impart movement to the gripping-blocks, the incline for shifting the wires a short distance endwise after they have been acted on by one or more of the hammers, and the hinged swage struck by the last hammer for bending over the headed ends of the wires which have been so moved endwise.

JOHN BATEY. Witnesses:

JAMES OARsoN, J AMEs CARLYLE.

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