USRE7094E - Improvement in machines for making and setting blind-staples - Google Patents

Description

J. KEITH.

MACHINES FOR MAKING AND SETTING 33mm STAPLES.

Reissued. May 2,1876.

INVENTIIIR:

W TN EE'EE' 5-.

ATTcJ-RNEY.

"UNITED-- STATES JEREMIAH KEITH, or PROVIDENCE, RHODE ISLAND, nssrenon TO HENRY PATENT OFFICE;

I G. THOMPSON,- CEMILFORD, CONNECTICUT.

IMPROVEMENTIN MACHINES FOR MAKING ANI J SETTING BLIND-STAPLES.

Specification forming part of Letters Patent No. 112,719, dated March 14, 1871; reissue No. 7,094, dated n all whom it may concern: 7

Be it known that I, JEREMIAH KEITH, formerly of Charlton, in the county of WVorcester and State of Massachusetts, but now of Provi-- obvious that the same mechanical devices are capable of driving the formed staples into other articles .of many andvarious materials, the invention itself consisting in the various details of arrangement and method 'of operation of the mechanism hereinafter described.

In the accompanying drawing, forming part of this specification, Figure 1 is a front elevation of the machine; Fig. 2, an end. elevation, and Fig. 3 a rear elevation. The other ,.figures illustrate details to be hereinafter described.

A is the bed of the machine, which, in con nection with an uprightwall, b, supports the mechanism. C is a vertically-adjustable table, upon which the slat-rod orother material to be stapled is placed, the lower edge resting on this table, and the upper edge extending I under a shoulder, d, the back of the slat be:

ing'supported against a vertical face, 0. The top of the shoulder d and another shoulder, j, form ways, in which'trav'els a reciprocating slide, f, on the front and near the opposite ends of which are twoframes, g h, in each of which isa hole for the passage of the stapleforming wire 5, said wire entering the machine through a stationary eyepiece, 70, and

passing under a spring-stout, which permits the wire to be drawn forward, but prevents it slipping back.

1 The wire passes under a spring feeder, m, on the slide and as the slide moves forward this feeder is pressed down upon the wire, and draws; it forward with'it, the projected end of thewire extending through a guideeye,'n, over'a ledge or bed, 0, through a guide- 1eye,:p, and over a beak or anvil, q, the said guide eyes'being formed in a plate, r, fastened upon the front of the upright frame b.

May 2, 1576; application filed February 24, 1876.

The endof the plate r, near the eye 1), is provided with an angular cutting-edge. Above the said cutting-edge is a reciprocating bender plate or punch, t, also provided witha cutting-edge, s, the said cutting-edge acting, in

conjunction with the cutting-edge of the plate 4", as a shears to out the Wire at any'd-esired' angle, depending upon the angle given to the said cutting-edges. It preferred, a cutting edge may be omitted from the bender plate or' punch 16, and be confined to the plate r alone. Before or just as the edge of the bending punch or fork t reaches the wire, the'fork of the punch strikes the wire over the top of the beak g. The edge .9 of the punch t has a slot or fork, u, of a width exceeding the thickness of the beak q, and as the punch moves down it bends one end of thewire t' oveitthe beak q, and down against its sides, the wire being compressed into longitudinal internal grooves within the longitudinal central opening, in which the driving-rod b s operated, and thereby forms the wire into a staple, the'end of the wire projecting beyond the beak being of the length to form one of the staple-legs, and the length of wire from the beak to the mouth of the eyep forming the other leg.

-When the staple is thus formed its two points are just above the edge of theslat or other article to be stapled, and the bottom of the bending punch-or fork t descends against the slat and holds it. The reciprocating movement of the punch is effected by a lever, 11, one arm of which extends into a slot, w, in the bending fork or punch, and this lever is actuated "by another lever, a, by means of a pin, y, which extends into a winding slot, 2, in

the lever o.

After the lever-arm a has effected the movement of the bender plate or punch tdown upon the slot, the arm'still furtherdescends, but Without imparting movement to the bender-plate t, and strikes the head of a drii'ingrod or hammer, N. The bottom of the drivingrod rests upon the formed staple and over the beak; but just before the lever-arm a drives down the staple, the inclined end 0 of a lever-,dfi is forced in between an arm, cZ-from the end of which projects the beak q, and the uprightb, and presses said beak back fronnuuder the staple, out of the path ofmovement of the drivingrod b the upper arm of the lever bender descends. The carrier or slide f is moved forward by the lower arm 9 of the leandwith it the wire. This movement takes "position, the stop m-yielding, and allowing to secure the staple in the slot into which it may he'driven.

the staple-driving mechanism.

d? having a winding slot, f into which projects the pin y, which pin, striking one side of the slot as it moves down, thereby causes the lower end of the lever to force back the beak q. When the pin y rises itstrikes another side of the winding slot, thereby throwing. up the lower end of the lever a and freeing the beak? arm 0 which is then pressed forward again by a suitable spring.

The beak q having been thrown back, the driving-rod descends upon the staple and forces it into or through the slat, rod, or other staple-receiving material. When the next staple is formed by the descent of the benderplate t the driving-rod b? gives way as the ver 00, the forward movement of this arm-causing it to strike the plate It and move the slide,

place just after the same movement of the lever a." has effected the rise of the cutting and bending punch or fork t, and of the drivingrod or hammer 12?, and the forward movement of the beak q' leaving these parts in position to receive the advancing end of the wire t.

Whenthe wire is being cut and formed by the descent of the upper. arm of the lever w, the arm g moves back, striking the plate 9, and returning the carrier-slide f to its normal the plates g h to slip upon the wire, the stop holding the wire stationary during the back movement of the carrier-plate.

Fixed to the lever-arm s is a c'utting-slock, it, having at its lower end two cutters, t", and just as the said arm'is completing its descent these cutters strike the opposite sides of the wire t, cutting upon each side of the wire a nick, it, as seen in Fig. 5, the wire being subsequently cut off between the two nicks, so that a nick is formed upon one end of one staple and upon one end of another by each action of the cutters. The metal displaced in cutting each nick forms a barb, which helps When the slat-rod is to have the staples applied to it, the table 0 is raised and fastened in position to pnable the slatrod 'to be properly supported and presented to the action of To feed the rod a rocker-arm, 1 may be connected by a link, m to the leverarm g and a projection, t, upon this arm in'its forward movement should strike one of a series of teeth on a strip or rack secured to the rod. When the slats are being stapled the link is disjointed from the lever, and the rocker-arm may then act as a presser to keep the'slat up to the face e, for which purpose it is provided with a spring, q, the pressure of which holds the arm against said face.

' Fig. 4 in the drawing shows the benderplate t at its highest position, with the mechanism adjacent thereto. 7

Having thus fully described this improvement in machines for making and setting blind and other staples, as of my invcntion,'[ claim- 7 1. In combination with the supporting-table d, the sliding and feeding carrier-plate f, the bender plate or fork 15, provided with a cutting-edge, s, and the driving-rod b all combined and arranged to operate substantially as'hereinbefore set forth.

2. In combination with the mechanism for" upon the former-bed, to bend the wire into a staple over. a suitable mandrel or beak, q, and

to carry the staple so formed forwardinto position to be driven, substantially as hereinbefore set forth.

5. The reciprocating punch or bending-fork t, constructed with a cutting-edge, and withinternal longitudinal grooves, whereby a staple-blank issevered, bent around a suitable mandrel, and held and guided for driving, substantially as hereinbefore set forth.

6. The reciprocating punch or bending-fork t, constructed with a longitudinal central opening, through or within which opening a hammer or staple -driving rod may opera-teyin combination with a cutting plate or die, substantially as hereinbefore set forth.

7. The reciprocating punch or bending-fork t, constructed with acutting-edge and a longitudinal central opening, through or within which opening a hammer or staple-driving rod may operate, incombination with a mandrel or beak, q, substantially as hereinbefore set forth.

8. The punch or bending-fork t, the mandrel or beak-q, and the staple-driving rod 11 operating in combination for purposes of severing a wire, of forming a staple therefrom, and of driving the same into or through the material without previous perforation, all substantially as hereinbcforeset forth.

9. The combination of a bending and cutting punchor fork with a hammer or drivingrod, whereby a staple is forced into or through the staple-receiving material, while the hammer rests on thehead of the staple, substan-v tially as hereinbefore set forth.

10. The former or bender plate t, so coneifeeting the feed movement of a slat rod, sub

stantially as set forth.

v 12. In combination with the staple-form- 'ing and driving mechanism hereinbefore described, the die plate or cutter 0', whereby both ends of the staple are pointed atany desired angle,v substantially as set forth.

In testimony that I claim the foregoing I have hereunto 'set my hand this 18th day of February, 187 6.

* JEREMIAH KELTH.

, Witnesses: I

D. B. POTTER, HENRY G. THOMPSON.

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