US172764A - Improvement in machines for pegging boots and shoes - Google Patents

Description

iSheensr-TShee 2. o. L., NOBLE en. T.- PR'OSSEB. .MACHIN-E FOR P'EGGING BOOTS AND SHOES.

- Patented. Jan. 25,1876.

MPEFERS, PNQTO-LITHOGRAFHER. WASHfNGTON, D G.

4Sheets-Sheet3. 0. L. NOBLE & T. T. FROSSER. MACHINE FOR PEGGI'NG BOOTS AND SHOES.

Patented Jan. 25.1876.

minumami 4Sheeos-Sheet4.

0. L. NOBLE & T. T. PROSSER.

. MACHINE FOR PEGGINGBOOITS AND SHOES. No.17Z,764.- Patented Jan.25, 1876.

Wiin 6,8365.

UNITED STATES OSCAR L. NOBLE AND TREAT T.

PATENT FFIGE.

PROSSER, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN MACHINES FOR PEGGING BOOTS AND SHQES.

Specification forming part of Letters Patent N 0. 172,764, dated January 25, 1876; application filed October 30, 1875.

To all whom it may concern:

Be it known that we, OSCAR L. NOBLE and TREAT T. PROSSER, both of Chicago, in the county of Cook and State of Illinois, have invented anew and useful Improvement in Pegging-Machines, of which the following is a specification This invention relates to that class of machines for pegging boots and shoes with metallic pegs, however inserted, in which the stock or work is supported on and automatically fed along as the pegging proceeds, an arm reaching into it, and the point of each peg on issuing from the insole is clinched by striking against a localized anvil-surface on the top of such Work-supporting arm.

The first part of our invention consists in taking the old straight vertical column, formerly used only as a fixed anvil for pegging around the heel, and adapting it for use as a universal support and anvil for pegging all around an unheeled boot or shoe. To this end we hang a selfad'usting lanyilplate on the top of the column, and support its now suitably-extended base in such a manner that the column can be adjusted by easy manipulation, and over the center of its anvil as the pivotal point from a vertical to any required inclination and in any desired direction to reach into the toe of the stock upon it, while the an vil-pla te preserves, by automatically conforming with its face to the sole of the boot or shoe, a localized flat clinching-surface at right angles,or nearly so, to the peg driveror inserter.

The secondpart of our invention consists of sundry improvements on machines for nailing boots and shoes with pegs cut successively from wire, and more especially on the machine described in United States Letters Patent No. 165,613, granted to Treat T. Prosser on July 13,1875.

These improvements, which will be clearly and fully described and specifically claim-ed hereinafter, may be briefly enumerated as relating.

First, to the mechanism for effecting the compression of the stock or work between the nailing-head and the anvil-su1 )port.

Second, to the mechanism for automatically conforming the wire-feed and, consequently, the length of the pegs, to the varying thickness of the stock or work.

Third, to the mechanism pegs successively from the time pointing the end thereof.

Fourth, to a certain additional automatic mechanism for indenting the wire near its point before severing a peg, and for giving to its chisel edge, at the same time, a slight obliquity, both for the purpose of facilitating the clinching of the point of the pegs on the anvil supporting the stock.

Fifth, to the mechanism for feeding the stock along.

In the'annexed drawings, Figure l is a perspective view of our improved machine. Fig. 2 is a vertical longitudinal section thereof. Figs. 3 to 7 are detail views of various parts pertaining to the nailing-machine. Fig. 8 is a perspective view of the combined universal support and anvil. Fig. 9 is a vertical section for severing the thereof, showing the column inclined and its anvil maintaining its horizontal position.

The same letters of reference are used in all the figures in the designation of identical parts.

()ur stock-supporting arm and anvil consists of a straight column, A, adjustably supported on a prop or hearing, B, and a self-adjusting solid anvilplate, O, hung to the top of the column. In the example shown theprop or hearing B has the form of a stationary pedestal, fixed to the bed-plate of the machine,

and having a circular cornice, B The column A has a circular base, A in form the segment of a hollow sphere, which is snugly fitted to a corresponding concavity in the cornice of the pedestal B, and is adapted to move therein like a ball in a socket. The column terminates in a spherical head, a, the centerof which is coincident with the center of its spherical base, and to which the solid anvil-plate O is permanentlyjointed by means of its socket c. The center of this head of the column must also be arranged in the line on which the pegs are forced through the stock.

In pegging around the sole of a boot or shoe with a machine having the ordinary localized feed mechanism for moving the stock alon the column requires to be adjusted by the operator from a vertical to inc ined positions in various directions, to permit it to reach into the toe, and to properly co-operate with the feed. These adjustments will in no wise affect Wire, and each the anvil plate, because the pivotal point on which the column moves (the center of its head a) is also the center of rotation of the anvilplate, so that the latter is free to preserve its horizontality, and to measurably accommodate itself to the surface contour of the insole of the stock upon it, while the head of the column moves in its socket. The peg-tube presser-foot of the machine, being, as customary, forcibly pressed down on the stock each time a peg is inserted, will, of course, hold the anvil-plate steady during such operations, so that it will then act as though it were fixed on the column, and will properly perform its function of a clinching-anvil.

The anvil-plate is circular, and, being free to rotate on the head of the column, will greatly facilitate the feeding by lessening the friction. It will, of course, be made of a neces'sarily small compass. v

The base of the column is a somewhat greater segment than the cavity of its supporting-pedestal, so that it will project all around when the column stands vertically. This,'in connection with an internal flange around its edge,will afford a good hold to the operator in adjusting it. It is also of such dimension that at the greatest required inclination of the column, the line of the pressure on its anvil-plate will still fall within the base.

To reduce the friction between the base of the column and its bearing it may be desirar ble to introduce anti-friction balls, as shown in Fig. 2.

In the mere details of construction many modifications may be made without materially changing the characteristic features of our novel double-jointed support and anvil. We have shown it in connection with a machine for nailing boots and shoes by means-of pegs cut successively from wire, and driven. It will be obvious that it is equally adapted for use on all other kinds of machines for uniting the soles and uppers of boots and shoes by means of pegs, whether such pegs are screwed home or driven in by pressure or percussion.

The motions of the different mechanisms of our improved nailing-machine are mainly derivedfromthe conti'nuousl'yrevolving shaft .D, turning in suitable hearings on the stand of the machine, and the major part of the mechanisms is carried on a frame, E,wliic'h is pivoted at its rear end on the shaft D. The head of this hinged frame terminates at its lower end in a nozzle, F, which constitutes the foot of the nail-tube, and, as it rests and presses-on the stock to be pegged, may be termed the presser-foot.

The stand G of the machine has horizontally-projecting arms G between which the hinged frame is in part located. A shaft, '11, is mounted on these arms, carrying a fixed pinion fl which meshes into a segmental rack, E fixed to frame E. Theshaft H also carries a fixed ratchet-wheel, H and constitutes the fulcrum of a lever, H which, reaching rearward, engages with a stud-pin, h,"

which carries an anti-friction roller, the camgroove in the disk I rigidly secured to the driving-shaft D. At It a pawl, H is pivoted to the lever H which pawl, reaching forward under the ratchet-wheel H is controlled in its action in part by the adjustable fulcrumpin k on the armG} of the stand, and in part by a spring, 71.". The cam-disk l is'best shown in Fig. 3. The end of the lever H engaged with the cam-diskis alternately raised and depressed by the action of the eccentric parts i and t" of the cam-groove which connect the concentric parts I and 1 thereof. Just before the lever reaches its highest elevation the pawl 11* brings up against the fulcrumpin h and is turned on its pivot h to disengage, it from the teeth of the ratchet-wheel H On the next descent of the lever the pawl, being carried away from the fulcrum-pin b has its forward end drawn up by the spring h so as to immediately engage the teeth of the ratchet-wheel and impart a partial turn to the same. By this partial revolution of the ratchet-wheel the hinged frame E will be depressed through the'medium of pinion H and rack E, so as to force its presser-foot firmly down on the stock. The part I? of the cam-groove in disk I holds the hinged frame thus depressed while a nail is being driven and clinched, immediately after which this positive pressure is relieved by the disengagement'of the pawl H from the ratchet-wheel H so that the boot or shoe may be properly feed along. The pawl H is kept disengaged by the action of part 1 of the cam-groove on the lever H so that the hinged frame may readily yield to .inequalities in the thickness of the stock, it being held down with only a slight pressure by the stress of the spring E The wire'from which the nails or pegs are to be cut is periodicallyfed forward by the feed-wheels K and K located in the head of the hinged frame, as best seen in Fig. 2. i The wheel K is hung in a yoke, K which is fulcrumed on a pin, 70, and acted upon by a spring, K through the medium of a rod, K and adjusting-nut K The wheel K is keyed to a shaft, 70, to which is also fixed a ratchetwheel, K", (see Fig. 5,) which is encircled by a ring, K, on a pinion, K ,'adapted to turn' loosely on shaft 7c, and meshing into a segmental rack, K fixed on the arm G of the stand. A part of the ring K is cut away, as seen at 70 Fig. 5, to expose a portion of the teeth of ratchet-wheel K An; arm, K is pivoted on shaft 70, to which arm a pawl, K, is pivoted,

spring 70 This arm K is oscillated by'a connecting-rod, K pivoted to the walkingbeam L of the machine. It will be observed that as the pawl K acts on the ratchet-wheel K through thecut k in the ring K, the extent of the feed will be regulated by the position of the cut 70 with relation to the pawl.

Now, this position of the cut is governed by the greater or less elevation otLthe hinged; frame E; for in changing its position in ac having its tail acted upon by a cordance with the varying thickness of the stock between its presser-foot and the anvilsupport, the pinion K, of which the ring K forms a part, as stated, traveling on the fixed rack K will be turned. The pawl K has always the same stroke, but its action on the ratchet-wheel changes in accordance with the position of the shielding ring K Thus when the frame is resting with its presser-foot on a thin portion of the stock, the pawl will only be allowed to give a short turn to the ratchetwheel.

As the stock becomes thickerand the frame rises in consequence, the shielding-ring will be turned correspondingly, so as to permit the pawlto give a greater turn to the ratchetwheel. The parts are so proportioned that a change in the thickness of the stock will cause an exactly corresponding change in the length of the feed, so that the length of the pegs will be proportionate always to the thickness of such stock.

' The end of the wire passes from the feedwheels K and K into a tube, M, which is snugly fitted in a bearing in the head of frame E. The tube is slotted from one end to the other on the rear side, and has on the front side a pin, m, which plays in a vertical slot, m in the head, and is borne down by a spring, m The lower end of this tube is tapered, and is, in its normal position, in the path of the blades of the shears, by which the pegs are severed from the Wire, terminating on a line barely above the cutting-edges of such blades. The respective jaws or levers N and N of the shears are placed in a horizontal po' sition under the hinged frame, and are pivoted to a hanger, Nithereof atn and n The rear arms of the levers are connected by a spring, n (shown in dotted lines in Fig. 6,) and embrace the slide-bar N where it is reduced to form cam surfaces as at a The rear end of the slide-bar N engages with a stud-pin and roller, W, a cam-groove in the disk 0 on shaft D. (See Fig. 2.) The part 0 of the cam-groove draws the slide-bar back so far that its cam-surfaces n will spread the rear arms of the levers N and N so as to close the cutters on the forward arms.

In closing the shears, the beveled edges of the cutters come in contact with the beveled or tapering sides of the end of wire-tube M,

and gradually push it upon the wire, while they sever the peg and form a chisel-edge on the end of the wire. As the cutters recede the wire=tube M is pushed down again by spring m to its normal position, which leaves its end on about a line with the chisel-edge of the end of the wire.

This tube thus affords such a support to the wire whilea peg is being severed from it, that it cannot be bentin consequence of any slight unevenness in the operations of the two shearblades. The position it assumes after the peg has been severed also enables it to give sup port to the wire under the operation of the punch or indenter N which is projected im mediately after through the slot m in the tube, and presses with its beveled edge a an indentation in the Wire at right angles to its chisel-edge, and just above the bevel.

The indenter is rigidly yet adjustably secured to the end of the slide-bar N by means" of a nut and set-screw, as shown in Fig. 2. It.

of the peg on the anvil-plate of the support,

and a peg severed from a wire thus prepared will be like a peg covered in an application for Letters Patent previously filed" by Treat T. Prosser. The slide-bar, to put the indenter into operation, is pushed forward by the protuberance 0 in the camgroove, and immediately withdrawn, so as to leave the end of the indenter just at the periphery of tube M, where it is kept by the concentric portion 0 of the camgroove until it is again drawn back, together with the slide-bar, by part 0 of the cam-groove, to give room for the operation of the shears.

Each time a peg has been severed and the end of the wire indented, the driver P descends through the tube M, pushing the wire to one side into the slot m of the tube, and forces the peg out of the tubular presser-foot F into the stock. The shank P of the driver plays in the tubular guidep in the head of the hinged frame Ewith its lower end. Its upper end has a bearing in the yoke E fixed on the head E The shank P carries a crosshead, P connected by links P to the end of the walking-beam L. This walking-beam is oscillated by an eccentric, L on the shaft D, through the medium of the eccentric rod L The throw of the eccentric and the respective length of the arms of the walking-beam will be so proportioned that the stroke of the driver will reach from near the upper end of tube M to the extreme lower end of the presser-foot F. On the ascent of the driver, the end of the wire will spring back into the tube, so that it will feed straight down through between the shears into the presser-foot.

The channel in the head E leading from the lower end of the tube M into the presserfoot, is made flaring atits upper end, as clearly shown in Fig. 2, so that the wire will be properly guided into the presser-foot and pushed back into tube M, even should it fail to spring back of its own accord from some cause or other. A

The feed-lever It, for moving the stock along each time a peg has been driven, is pivoted to a boss, 8, on the lower end of a lever, S. It is angular, like a bell-crank, its vertical arm being suitably pointed, to enable it to take hold on the sole. Its horizontal arm reaches under a projection, 8, (see Fig. gt,) on boss .9, and is connected by a spring, r, to the lever S. A bracket, It}, fixed on the head of the hinged frame E, carries a stop-bar, R which is connected to it by a fixed pin, 1", projecting into slots r in the flanges of the stop-bar,

and a set-screw W, by means of which the stopbar can be adjusted on the bracket. This stop-bar regulates the length of the shoe-feed in the manner presently to be explained. The lever S, pivoted at 8 on the head of frame E, has in its upper end an angular slot, S in which plays an anti-friction roller on the stud-pin e of the cross-head P gins. toturn on its pivotwhile the lever S is stillmoving.

When the driver again ascends, and the lower arm of lever S consequently gradually recedes-from the stop-bar R the feed-lever Rdoes not begin to feed the stock along until it has completely moved away from the stop-bar, and its horizontal arm hasbeen drawn up by the spring 4 against the projec tion 8 on the boss. .9 of lever S. The length of the shoefeed and the distance between the pegs may thus beregulated by adjusting the stop-bar R up or down. The stud-pin p and its anti-friction roller on the cross-head of the" driverdescends to the extreme lower end of the slot S in lever S. Thus, in ascending again, they move for a short distance in the parallel portion of the slot S and do not affeet the lever S. During this time the positive pressure of the presser-foot on the stock will be relieved, and-the stock will be in condition for feeding along-the moment the lever S begins to oscillate.

The. shaft H is provided with a hand-lever, H on'its outer end, (see Fig. 1,) by means of which the shaft may be turned by hand to lift the frame E 011' the work.

The operation ofthe machine will, we think, be readily understood from the foregoing de-' scription byany one skilled in the art; but it may not be out of place. to recapitulate the more prominent steps thereof in their succes sive order. 1

Assuming that a peg has just been driven, the driverbeing, consequently, in its lowest position, the continued revolution of shaft D will cause the driver to ascend, and, at about the same instant, effect the release of ratchet-wheel H from pawl H thus relieving the positive pressure ofthe presser-foot on the boot or shoe. Immediately thereafter the boot or shoe will be fed along, raising or lowering the presserfoot and the hinged frame, if any change of thickness of the soles occurs, which will cause a corresponding change in the-position of the cut in ring K which regulates the wire-feed. The wire is also fed down, a pegcut from it,

The lower end of the slot S is parallel to the driver, while the up per or longer portion of it stands at a right angle thereto. Thus the vertical reciprocation. of the driver and its cross-head will imy and an indentation pressed inlit, near its end,

during the ascent 'of the driver.

On the beginning of the downstrokethereof, the pawl H is again thrown intogear with ratchet-wheel H and the latter slightly turned for the purpose of drawingthe presser-foot forcibly down on the stock. The feed-lever R is also moved over the stock, a distance determined by the stop-bar R in H preparation for anotherfeed.

In pegging from one side of the shank, around the heel to the outer side of the shank, the column A may maintain a verticalposition but on proceeding to peg from the shank along the sole, the columnwill be gradually moved by the operator into an v inclined position, to permit'its anvil to reach into the toe. On reaching the corner of the toe, both the column and the stock on it must beshift- .ed, and,on reaching theopposite corner of the toe, must be again shifted, to accommodate themselves to the feed."

Inpegging back from the toe; to the shan along the other side of the sole, the. column may be againgraduallymovedinto a vertical position.

What we claim as our invention,and desire to secure by Letters Patent, is

1. In' a boot and shoepegging machine, an

anvil provided with a double-jointed support,

substantially as before ,set forth, such double joint permitting the inclination of the column to be varied without affecting the planeof the face of the anvil.

2. In a boot andshoe pegging machine, .an

anvil mounted upon'a double-jointed support, a

substantially as' before set forth, the adjustable column thereof having.,a-spl 1eral base 5. The combination, substantially asbeforeset forth, with a \vorkisupporting anvil, the hinged frame and its presser-foot, and the wheels for feeding the wire, of the ratchetwheel and pawl formoving suchfeed-wheels,

the loose pinion and its out ring'encircling the ratchet-wheel, andthe fixedrack on the stand of the machine. a I

. 6. The combination substantially as before set'forth, of the shears, and the bevel-ended,

yielding Wire-tube.

7. The combination, substantially as before I set forth, of the indenter and the slotted wiretube.

8 The combination, substantially as before set forth, with the bevel-ended yielding and In testimony whereof We have signed our slotted Wire tube, of the shears and the innames to this specification in presence of two denter. subscribing witnesses.

9. The combination, substantially as before OSCAR L NOBLE :giforth, of the drlver and the slotted wire- TREAT T. PROSSEB.

10. The combination, substantially as before Witnesses for NOBLE:

set forth, with the lever for feeding the stock JAMES H, BUSELL,

along, and the adjustable stop-bar for regu- BENJA. HALL OURRIER.

la-ting the length of the feed-strokes, of the Witnesses for PROSSER:

lever S, having a projection, s, and the B. EDW. J. EILS,

spring 1". JOHN EILs;

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