US102659A - Improved staple-machine - Google Patents

Description

N. PETERS, PHCTO.LITHOGRAFHER, WASHINGTON. D C.

Lette/rs Patent N 102,659, dated May 3, 1870, antcllated lApril 22, 1870.

IMPROVE!) STAPLE-MACHINE.

. The Schedule refened to x'xi these Letters Patent and making part of the same.

To all whom 'it may concern: A

Be it known that I, JOHN T. DARNELL, of Florence, county of Burlington and State of New Jersey, have invented a new and Improved Staple-Machine;'and

I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings and to the letters ol'reference marked thereon.

The object of my invention consists in constructing a simple and effectual machine for making wire staples, whereby the staples are cnt, formed, and barbed or notched at one operation. g

The machine consists of a housing or framing of suitable form, and provided with bearings, in which are placed and work two horizontal shafts. `On the said shafts are secured two revolving heads, made in the form of a zone of a'circle. In the end of one of the heads is formed a slot or groove-for the purpose of. re-

V ceiving a tool, which is guided soas to slide in and out "as the head revolves,by'meansfof.au eccentric ring secured to the inner side ofthe housing. lOne end of Athe said tool, which projects out beyond the-end of `Ythe head, is made somewhat in the form of a hook, and

' catches over the wire placediu suitable dies, and bends once inserted in the wood. yThe wire to form the staple is cnt of the proper length by means of a die, and an arm provided wit-h a euttiug-toohand actuated by means of a cam formed ou one of the shafts above meutioued. The said die is provided with an opening, through which the wire is passed, and the side of the die against which the cutting-tool works is formed ou au angle correspondln g to the angle of the cutting-tool, so that the wire is out across obliqucly, thus forming the points of the staple. v

Figure l is a front elevation of my improved staplemachine, (with the gear-whecls for driving the same removed.)

Figure 2 is a pla-n view of same, (with the gearwheels attached.)

Figure 3 is a side view of one of the revolving heads.

Figure 4 is au end view of saine.

Figure 5 is a plan view of the eccentric rin Figure '6 is a top view of same.

Figure 7 is a perspective view of thc upper part of the dies and cutting-tool.

To enable those skilled in the art to make and use my invention I will now proceed to describe its construction and operation.

The housing or trame-work ofthe machine tonsis'ts of two cast-iron sides or frames, A and A, rising above and secured to a horizontal platform or table.

Supported in snitabl(` bearings, Il, l, l?, and B,

formed on the upper part of the said sides A and A', and revolved by means of two spur-wheels fixed upon their outer ends, are two shafts, S and S'.

Atiixed on each of the shafts S and S, and a short distance back of the side A, are two revolving heads, H and H', made of the proper thickness, and in the form of .azone of a circle, withthe curved ends slightly tapered, and provided ontheir dat or parallel edges with tools, l and 'Il'. rIhe inner ends of the said tools, which approach toward the centre of the machine', are barbed or notched, and are slightly turned down, and fit in recesses formed on the corners of thc heads.

lhe tools 'l.-' and T areattaclied to and adjusted on kthe heads H and H by means of screws R, R1, R2, and

It, lpassed through suitable slots formed in the tools,

angle in the head H, and is' provided with'a pin or pro. l

jcction, 11, which extends out and througha slot formed in the plate D inclosing the groove. 'lheend 7L of thel tool, which extends out beyond the head while bending the wire, is made in the form ofahook, which passes over the wire.

The eccentric ringl, made in the formas shown in figs. 5 and 6, is provided with lugs G and G for securing it in position, and has formed through it an open space, The said space is laid off from the cent-rcs c and c' with the radius c j, and ef, and is made perfectly straight and vertical i'om the points a to b. The piu or projection p on the vtool B passes through this space, and is provided with a frictionroller, t, which fits and rolls around in the space, so that, when the ring lll is placed in the proper position, the tool B will be guided, (by means of the pin pass ing through the space 0,) and slide in and ont on the head H.

'llbering ll, made in the form above described, is placed over the shaft S, (the opening in the center ofthe ring being made lconsiderably larger than the shaft,) and between the inner side of the frame A and the head H, where it is secured by means of the lugs G and G passing over the top of thc fiamc. and on each side of the bearing B2.

Secured ou the platform or table of the machine, and

lhc opposite end of the lover lV rises up, and bears on it a cutting-tool, K, which is secured in place and adj usted by means of the screws I, Il. and I2. v

',lhe cani J deprcsscs the lcvor, and, alter it is released from contact with it, the lever is raised to, its former position by means of a spring, N, resting on a lug cast on the side of the lever, and secured to the inner edge of the arm M.

The dies Pand P', with their ends, d and d', ex-v tending up at right angles, are secured and adjusted 0n the upper part oi' the framing of the machine, so that the center groove or notch formed in the parts fl and d is on a line with the center of the machine, and between the approaching ends of the heads H and H' lhc ends al and d' ofthe dies extend'up the proper height, and are placed at suflcient distance apart, in order to allow the hooked end of the bending-tool B to pass between them.

The bottom part of the grooves or notches formed in the dies are rounded off toward the bending-tool so as to fonn the proper curve to the staple while being turned. A

Immediately in front ofthe die I, and extending up the same distance as the part d, is a gauge, U, made adjustable on the frame A, so as to stop off' the wire at the proper length for the staple.

The die l2 is placed at right angles to the dies I and P1, and has its .end rl2 turned up the same distance as parts d and dl.

Formed through the part d2, and immediately: opposite the grooves or notches in the dies P and l", is a circular opening, through which the wire is passed from the feeding-almaratns connected with the machine.

lhe tool K, attached to the lever \V, is arranged so that the cutting-edge works against the end d2 of the die I. This part oi'the die, and the edge of the tool, are made on the same angle, in order to cut the wire passed through the opening made in the die I obliquely, and thus form the points on the staples.

lhe operation is as follows:

The wire to form the staple is passed through the opening made in the die P2, and through the grooves in the dies P and P1, by means of a feed attachment, lhe end ofthe wii'e, after it passes through the die P, is stopped by means of the gauge U. The machine is then put in mot-ion through the gear-wheels on the y shafts S and S', and the cam J depresses the lever W' until the tool K cuts the wire, The hooked end of the bending-tool B* catches over the wire betwcen't-hc dies P and I, and bends it down until it assumes thc proper form. The barbing-tools l and T' now barb or notch the staple on both sides, after which it drops beneath the revolving heads finished and ready for use.

The object in forming that portion of the open space O of the ring E, between the points a and b, straight and vertical, is to allow the pin or projection p to pass down in it and carry the hooked end of the tool B in a vertical line, thus keeping the staple still remaining on the tool perfectly straight. By forming the ring E eccentric, the tool B is extended to the furthest limit while it is forming the staple, after which it is drawn in by means ofthe pin p following around the circular form of the open space.

' In theabove description, the revolving heads of' the machine have been described as carrying but one barbing-,tool each; whereas, in the full-sized machine, two barbin'g-tools are applied to each head, and one head provided with two bending-tools, one on each side, as shown by dotted lines, g. 3, so that two complete staples are made at one revolution of the heads.

Having thus described myinvention, its construction and operation, That I claim, and `desire to secure by Letters Patent of the United States, is

rlhe arrangement of theheads H and H' on the shafts S and S', the said heads being constructed as herein specified, and provided with barbing-tools T and lugs L and L', screws R R It2 It, and adjustingscrews C and C', so as to operate and for the purpose set forth.

2. rlhe within-described staple-machine, composed of the parts herein set forth, all com bined and operating substantially as specitied.

In testimony whereofl have hereunto signed my name in the presence of two subscribing witnesses.

JO HN T. DARNELL.

Witn asses:

CHARLES H. EVANS, Gao. E. NICHOLS.

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