US236176A - Machine for making ring-shaped barb-pieces - Google Patents

Description

Nrrnn STATES PATENT Oriana.

HIRAM REYNOLDS, OF MITOHELLVILLE, ASSIGNOB TO GEORGE NEIL AND G. F. AURINGER, F MARSHALLTOWN, IOWA.

MACHINE FOR MAKING RING-SHAPED BARB-PIECES.

SPECIFICATION forming part of Letters Patent No. 236,176, dated January 4, 1881.

Application filed July 23, 1880. (Model) To all whom it may concern:

Be it known that I, HIRAM REYNOLDS, of Mitchellville, in the county of Polk and State of Iowa, have invented a Machine for Making Ring-Shaped Barb-Pieces, of which the following is a specification.

The object of my invention is to manufacture, by means of automatic machinery, the ring-shaped barb-piece shown and described in the United StatesPatentNo.203,779,issued May 14, 1878.

It consists in wire-moving.mechanism, wirecutting mechanism, a staple-formin g device, a ring-forming device, and a wire-twisting device, formed, arranged, and combined on a suitable base, as hereinafter fully set forth.

Figure l of my drawings is a top view of my machine. Fig. 2 is a side view. Fig.'3is a detail view of the wire-cutting mechanism and the ring-forming device. Fig. 4 is a detail view showing the combination of the wiretwisting device and the driving-shaft. Fig.5 is a perspective view of a ring-shaped barbpiece produced by the machine. Fig. 6 is a 25' detail view showing the staple-forming, ringforming, and barb-twisting devices. Fig. 7 is a detail View showing the cutting-knife and slot in which it moves. Jointly considered, these figures clearly illustrate the construction and operation of my complete invention.

A represents the base of my machine, in the form of an oblong plate, that is preferably made of cast-iron. It may be fixed upon a bench or mounted upon legs in any suitable way.

B is a driving-shaft, mounted in bearings formed on or fixed to the upper side of A.

0 represents a crank or wheel by means of which power is applied to the shaft B to oper- 0 ate the complete machine.

A is a plate extending laterally from the plate A near its end, to form a base for my wire moving and feeding mechanism.

' d is a sliding block fitted to move in bear: ings formed in or attached to the top side of the extension A 6 is a pawl pivoted to the top sideand end of the sliding block 61, to gripe a wire that is placed underneath it to be clamped to the block and moved forward with the block, as required, to advance the wire at regularintervals to the cutting mechanism.

f is a rock-shaft mounted in bearings formed on or attached to the extensiouplate A It has an arm or crank, f, at one end, that is 5 flexibly connected with the pawl e and the sliding block (1 by means of rigid links f.

g is a slotted arm on the opposite end of the rock-shaftf, by means of which the shaft is rocked at regular intervals to impart a recip- 6o rocating motion to the sliding block d.

g is a crank on the end of the drivingshaft B.

g is a pitman that connects the slotted arm and bridle g and the crank g, as required, to transmit power and motion from the drivingshaft to the wire moving and feeding mechanism.

h is a triangular-shaped plate and knife carrier, pivoted to the upright bearing that supports one end of the driving-shaft B, as shown in Fig. 3. h is a knife fixed to its lower corner.

h is an angular or two-faced cam formed in the upper end of the plate It in such a manner that it will be engaged by the lug 2' projecting from the driving-shaft B, and thereby alternately raised and depressed, as required, to operate the knife h. I am aware that hammers have been operated by a similar mechanical movement; but my manner of forming a plate adapted to carry a knife and combining it with operating mechanismis novel and advantageous in cutting barb-pieces.

J is a plate that has a groove in its under side to direct the wire from the feed mechanism to the cutting mechanism. It is fixed to the base A, and has a notch at its end and side corresponding with the edge of the knife h, that descends through said notch and extends diagonally across the wire, as required, 0 to out off pointed barb-pieces.

k is a rock-shaft. mounted on the base A by means of a suitable bearing in line with the cutting and feeding mechanism. It has a finger or ring-former, 70, extending downward 5 to engage the barb-pieces, (that are cut from the continuous wire by the knife h,) and bend them as required to produce rings. 75" is a bent arm extending upward from the rockshaft It to engage a cam, No. 1, on the driving-shaft B, as required, to transmit power and motion from the driving-shaft to the ringforming device.

lis a pin projecting from the shaft-bearing to engage the arm k and restrict its upward motion. Z is a crank on the opposite end of the rock-shaft k.

l is a post fixed to the base A.

L is a spring extending from the top of the post 1 to the end of the crank l in such a manner that in its normal position it will pull upward on the crank Z, as required, to rock the shaft k and bring its finger into position to engage the straight barb-piece immediately after it is cut by means of the knife h.

m is a bifurcated bar,fixed to the base A in such a position relative to the ring-former k that the ends of its prongs will form bearings for the ends of the straight barb-pieces, while the ring-former It" presses the center of the barbpiece between the prongs and bends the pieces into staple shape and partially around the ringformer, in such a manner that the parallel and pointed ends of the staple-shaped piece will extend toward the head of the twisting device. The prongs have notches in their ends to engage the wire barb-piece when it is straight, and grooves in their inside faces to direct and hold it while it is being bent into staple-shape.

m is a slot in the base A, within which my barb-twister is mounted.

a is a shaft that has a flattened head, and is mounted in suitable bearingsin the slot m.

a is a pinion fixed on the shaft 02.

a is a rack of segmental form, pivoted to a post rising from the base A, in such a manner that the rack can be vibrated and engage the pinion a, as required, to rotate the wiretwisting shaft or at regular intervals.

0 is a disk fixed to the driving-shaft B in an eccentric position, to perform the function of a cam. It fits into a ring, 0, that has an arm, 0", extending outward, to be connected with an arm, 0', that extends from the pivoted rack n. The rotary motion of the disk 0 on the shaft B, thus flexibly connected with the rack a, will vibrate the rack at regular intervals, as required, to rotate the shaft a to twist the prongs of staple-shaped barb-piece together to produce a ring-shaped barb-piece.

r is a coiled spring, fixed on the shaft a in such a manner that it will, in its normal condition, hold the shaft a away from the wire barb-pieces.

s is a cam fixed on the driving-shaft B, to engage a collar, t, on the shaft a, and thereby impart a longitudinal movement to the rotating shaft and barb-twister n at regular intervals, as required, to follow the vibrating ringformer k, and to come into contact with the prongs of the barb-piece after it is bent around the said ring-former. A stud and anti-friction roller on the collar t facilitates the longitudinal movement of the twisting device. Projections on the flattened end or head of the shaft and twister n engage the prongs of the barbpiece. One of said projections lies over one leg of the staple and the other projection under the other leg, as shown in Fig. 6, and as required to bend said legs out at right angles to the axis of the twister at the same time that they are twisted together by their bearing against the rear portion of the ring-former; and when the ends of the barb-piece are thus twisted together the ring-former 7c and the twister n, actuated by the springs l and aresume their normal positions, and the complete ring-shaped barb piece is allowed to drop through the slot in the base A.

It is obvious from the description of the various groups of operating devices and their various functions that they will act in concert to form a complete ring-shaped barb-piece at every revolution of the driving-shaft, from which intermittent motions are imparted to the various operating parts at regular intervals, and that those peculiar barb-pieces can be automatically and rapidly produced by my machine at a nominal cost.

I claim as my invention- 1. In a machine for making fence-barb pieces, the combination of the shaft B, having a cam, i, the pivoted plate h, carrying a knife, h, and having a cam, h, and the plate J, having a groove to direct a wire to the knife, substantially as shown and described, for the purposes specified.

2. The wire-feeding mechanism d cfff g g g, the wire-cutting mechanism h h h, and the wire and knife directing plate J, arranged and combined substantially as shown and described, for the purposes specified.

3. The staple-forming device composed of the rock-shaft k having a finger, an arm, 70', and a crank, l, the spring l, the shaft B, having a cam, No. 1, and the bifurcated bar on, substantially as shown and described, for the purposes specified.

4. The barb-twisting device composed of the sliding shaft n, having projections on its flattened head, the pinion a, the combined collar and stud t, the spring 1", the shaft B, having a cam, s, and the devices a" 0 0 0 0', substantially as shown and described, for the purposes specified.

5. The staple-forming device k 70 70 lm, in combination with the driving-shaft B, having a cam, No. 1, substantially as shown and described, for the purposes specified.

6. The combination of the wire-twisting device a a r t, the shaft B, having cams 0 and s, the ring 0, having an arm, 0", and the pivoted rack n, having an arm, 0, substantially as shown and described, for the purposes specified.

7. A machine adapted to form ring-shaped and. 0 on the shaft B, the ring 0, having an barb-pieces composed of the following elearm, 0, and the pivoted rack n, having an ments, to wit: a driving-shaft, B, mounted a-rm,0,substantiallyas shown and described. 10

upon a suitable base, a Wireffeeding mechanr HIRAM REYNOLDS. 5 ism, awire-outting mechanism, h h h i, a sta- Witnesses: plea-forming device, is k k l m, a wire-twisting W. W. HEDGES,

device, n n m 1' t, the operating-cams No. 1, s, 4 G. H. ALELER.

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