USRE7033E - Assigeob to the american - Google Patents

Description

L. G'oDnU. MACHINES FOR INSERTING SCREWS CUT'FROH SCRE'W-THREADED WIRE IN THE MANUFACTURE 0F BOOTS AND SHOES.

Ressued April' 1876.

lilllllll'll N. PETERS, PNUTO-LITNUGRAPIER. WASNINBYON. D. C.

3 Sheets-Sheet 3. L. GODDU. MACHINES FOR INSERTING SCREWS OUT FROM SCREW-THREADED Ressued April 4, 1876.

WIRE IN THE MANUFACTURE OF BOOTS AND SHOES.

l lI-Pfm PNOTVUTNDBRANER. WASHINGTON. D. C.

PATENT OFFICE.

LOUIS' GODDU, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE AMERICAN CABLE SCREW WIRE COMPANY, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR INSERTING SCREWS CUT FROM SCREW-THREADED WIRE IN THE MANUFACTURE 0F BOOTS AND SHOES.

Specification forming part of Letters Patent No. 171 610, dated December 28, 1875; reissue NJ. 7,033. dated April 4, 1876; application filed March 28, 1876.

art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the `letters of reference marked thereon, which form a partof this specification.

Machines have heretofore been constructed to insert screws to unite the uppers to the Soles of boots and shoes -by severing such screws from a threaded coil of wire. In such machines the threaded wire has been seized and inserted by a. clamping device, which is then released to make the succeeding clamp and feed, and'inscrt the next screw. In such intermittent seizing and clamping device the crushing of thegthreads of the screw is una-- void-able. g l

It is of great importance and absolutely necessary that the threads of the screw be kept from being crushed by the action of the clamping device in seizing the. wire; otherwise, the holding power of the screws would be greatly diminished and rendered uncertain. It is `one of the distinguishing aims o't' my invention to remedy' this serious defect, and to produce such a machine in which the work may hc rapidly and perfectly done.

ln the organization of my new screw-ma. chine I have combined ahead carrying the feeding and griping devices for the wire, and having a compound automatic vertical and laterally-reciprocating movement, one -of such movements being to adjust itsclt to di'erent and varying thicknesses ot' work, and the other to effect the feed of the head over the work. With this last or side reciprocating movement of the head the worksupport cooperates, and also moves in unison. The screw is inserted while these parts are moving tc the left, and the return movements ot' the head and the work-support determine the feed byv normal position upon the standard.

the extent of such movement, the workremaining in its position against an edge-guide, and both the head and the work-support take their positions at another point with respect to the work, ready to insert the succeeding screw. The support for the work, which, in the example shown, is a revoluble horn, is

mounted, by means of' an arm, upon the stem,

ing motion with the spindle, and an automatically varying vertical'movement independently ot such revolving motion, to alter thev length ot' feed to correspond to the thickness of the stock to be united. This construction ot the spindle is not only new, but the means for producing the result stated are also new, and consists in combining with such segmentslide a stop acting on a fixed point in the standard.` The head is held from having any vertical movement while the screw is being inserted by means ot' an automatic locking device, the peculiar construction and opera.- tion of which allows it to be u sed as the means whereby thc head is raised as soon as thc means of a slotted arm, to the standardin the rear of the head. v Y In the accompanying drawings, Fig. 1 represents apartial sectional elevation ot' the right side of a screw-inserting machine for uniting the uppers to the soles of` boots andv shoes; Fig. 2, a front elevation of thesame;

Fig. 3, an elevation of thc left side of thc same. In these three. views the head is shown in its Fig. 4,` a vertical section ot' the spindle, showing the feeding and holding devices enlarged ;v Fig.

5, an elevation of the same. Figs. 6 and 7 are views of the lower end of the spindle, showing the geared connection of the slide-segment; Fig. 8, detail views of the severingknifes and their operating devices Fig. 9, de-v tailV views otl the feeding-rolls, being in plan and vertical section Fig. 10, a sectional view, showing the device for locking the head while inserting the screw Fig. 11, a horizontal section, showing the hinge ot' the head from which it receives its laterally-reciprocating movement; Fig. 12, an elevation ofthe head, 4showing its relation, when raised, to the standard, the adjustable edge-guide, and the horn; Figs. 13,14, and 15, de tails of the pivoted armed spooll for the coil of wire; and Fig. 10, a sectional view, showing the adjustable edge-guide:

The work-support A is mounted upon the stem B, Fig. 1, which also carries the headof the machine, and these two elements are mounted upon a standard, C.v 4The spindle D, through which the wire a passes, is arranged `in lille with the axis of the nose of the worksupport. It revolves in vertical bearings D2 ot' the head E, and carries at its upper end the spoolF for the coil of wire,'andin position to allow it to uncoil in line with the wire passage iu the spindle. It is revolved by a pul` ley, F2, at'its-upperend, and'has a wormgear, G, which imparts motion to the cam-shaft through a gear-wheel, G2, thereon. (See Fig. 2.) The feed-rolls H are situated within an enlargement, I, of the lower end of the spindle, and the device by which they are operated consists, primarily, of a slide, J, which forms a segment ot' the spindle', and which has a vertical movement ina groove cut in the spindle. Just above the lower bearing of the spindle the diameter of the latter is reducedv slightly', but the are of the slide remains equal `to the greatest diameter of the spindle, and

greater diameter at that point than the spin! dle,"and thus all friction on the spindle is avoided, and a free vertical movement given to the slide-segment. The lower part of' this segment J is provided with cogs d, having a groove e, Fig. 4, at right angles with the cogs through which the wire passes to the griping andl feeding rolls H, and is, therefore, in line with the wire passage of the spindle. The 4feed-rolls are operated by this rack db-y means of a gear, f, having a groove equal to halt' the diameter of thewire, and which forms, with thegroove e in the slide-segment J, a continuation of the wire passage of thespindle, and thereby forming a support for the wire while it enters thefeed-rolls immediately below. In its kupward movement the slide-segment J moves without operating the feed-rolls, `because the grooved gear f is mounted by a sleeve, g, Figs. 4 and 12, upon the shaft, which carries at one end a ratchet-wheel, h. into which a pawl, i, acts, fastened to the armj ot' the gear-sleeve g, and at the other end said shaft carries a pinion, jz, which, by an intermediate pinion,j", gears with a pin-icing, on the end of the feed-roll shaft.

The other feed-roll is made adjustable to give more or less pressure upon the wire, and is held in a bearing-plate, H2, screwed to the head of the spindle.

. Now, the operation of this wire-feedin mechanism is as follows, viz: The wire, being fed between the griping and feed rolls H, is held rmly, and caused to revolve with the spindle, the slide-segment J being in its lowest position, and the pawl t' preventing the rolls from having any backward movement at the time of severing the screw. segment J, in rising to take a new feed, bei-ng connected with the sleeved gear f, causes the sleeve-arm j audits ratchet-pawl i to move backward without turning the ratchet-wheel h. This gives the pawl a new bite on the ratchet h, when the segment-slide is at its highest point, so that, when brought down,I

itl will cause the ratchet-wheel to turn its geared shaft,v which, being connected to the feed-rolls, will turn them, thus feeding down Ithe wire. In this way the slide-segment moves up freely over the wire and down, carrying the wire with it.

The feed-rolls are of peculiar construction, one of which I prefer to construct with an annular concave screw-worm, k, Fig. 9, to suit 'the pitch and size of the screw-thread, and in which the thread embeds itself, so that the pressure needed to hold the wire can be ap- 'plied by the4 opposite feed-roll without injur-v 'ing the thread of the wire, while the other roll, in order to give it the most perfect holding-power, has two annular threaded edges, l,

.with au annular groove between them. This `holding principle gives an intermittent contact, and allows the free passage of wire between them in the direction of its lengtl1,hold ing it'` firmly, to cause it to revolve with .the spindle, and preserving the thread from the least injury. The feed of the wire being effected by the vertical movements ofthe slidesegment, I obtain this movement by means of a lever, K, having three arms, Fig. 1, and piv- Oted to the head, one arm, k2, of which is forked, and connected by a pivoted block, working in the fork, to a vertical bar, m, mov- The slideing in ways, and which is connected to the loose collar c2, Figs. 4 and 5, of the slidesegment. Another arm, k3, is connected, by pin and roll, with the cam L, which gives the lever its motion, while the third arm, k, is con- `nected to a vertical rod, n, passing through.

the base of the head, and which touches and rests upon an adjustable stop, o, Fig. 1, inside the hollow stem B, which carries the head each time the4 length of the feed is determined.l

This central gagestop o is made adjustable by having a screw on its lower end, passing through a nut in the standard, and provided with a check-nut, o2.

rllhe cam L, Fig. 12, which operates to depress the slide-segment, being a face-cam, if the roll was always allowed to follow the surface of the cam during its revolutions it would raise the slide-segment always to its highest point, and consequently make the same feed. But, if held from following the greatest curve described by the path of the cam L dur ing any portion of its revolution, it is plain that the slide-segment J would not rise so great a distance over the wire, and consequently would not feed down so much wire. The higher, therefore, the slide-segment is raised, the longer will -be the screw, and vice versa.

By this construction and combination the operating-cam L is iliade to perform the function of a series of cams, which would otherwise be required to give the desired elevation to the slide-segment. This is accomplished in the following mannerrWhen the cam L has reached its greatest point of protection it will be seen that, unless some pressure is applied upon the third arm 1c, the second arm k3 would not follow the receding curve of the cam, so a spiral spring, p, Fig. 1, is arranged to press upon that arm k to throw it down. Now, if the vertical rod n, leading from the third arm k, strikes the stop o in the base previous to the maximum throw ofthe cam heilig reached, it is plain that that will determine the height which the arm operating the slide-segment can rise just as definitely as it' the arm k3 had followed and rested upon the face ofthe cam during its entire revolution. Not only does this springp and stop-rod n determine the lengtll of feed for a particular or given thickness of work, but the operation is automatic. The pressure-spring p is held in position by a rod rising from the third arm k, and passing through a sleeve-nut, q, in a threaded projection on the head, the spring piessing upon the end ot' the sleeve-nut, byv

which the pressure is regulated. The fixed point made by the adjustablestandardstop o, and upon which the vertical rod n acts, constitutes the base from which this automatic action operates when the head is resting upon the top of the standard. The head of the machine having a vertical movement while the gage-stop o remains stationary, it follows that the higher the head of the machine is "raised the fartherl the vertical rod a work.

are parallel to each other, and provided with will descend before it touches the stop. Now, if start with material which requires the head to be raised, say, three-eighths of an inch, to place it upon the work-support, the distance between the gage-stop o and the end ot' the vertical rod Jn will be proportionately increased, and the moment the time comes for determining the length of feed at that point the cam-face L recedes suddenly and allows the compressed spring p to force down the vertical. rod u through the space made by raising -the head above the fixed gage-Stopp, which it strikes, and thereby stops the further ascent ofthe slide-segn'lent, andthus determines the length `of wire fed down, which will correspond with the thickness of the stock. Any point of elevation ofthe head caused by the thickness of the stock between its contact with the cutter-arms and the Work-support will be in like manner determined.

.lf at any time it is desired to let the machine run and suspend the action of the wire-Y feeding mechanism, this may be effected by a set-screw, r, Figs. l and 1l, passing through the base of the head in position to be forced against the vertical rod n, (which acts upon t-he fixed stop 0,) when said rod is at its highest elevation, and keep it from descending, and consequently holding the arm k3 from receiving any motion from the cam L until-the rod n is unclamped. rlhis gives very great control over the working of the machine without disturbing its other movements.

The screw having. been inserted it is necessary to sever it from the wire very quick,- and just previous to the head beingautomatically raised.

rEhe wire-severing cutters s are secured each to an arm, t', Fig. S, which is fitted to slide within a groove formedl in the under side of the head, and which arms t rest upon the One is longer than the other, and they cogs t2 on their inner edgesat the rear ends, into which a geared pinion, u, meshes for imparting opposite sliding movements to these arms, the longest one. of which extends in front of,a vertical line through the spindle, and the shortest one terminates just back of said line, so that the cutters s beingI fixed with their cutting-edges on opposite sides of this line will approach and recede just half the distance necessary to sever the screw.

In practice, it has been found lnost desirable to set the cutters so that their cutting-surfaces strike the wire diagonally and at opposite angles. instead of in the same plane or at right angles to the length ofthe wire. IEhis oblique set is made by b'eveling the top and under surfaces ofthe cutters, so that their edges,

when brought together, willform an X,as at Xa,

Sheet 3f lghe advantages of this are that the knives last longer, cut the wire easier, and form a cutting-edge on the end of the screw, causing it to enter more easily, and the end to rivet on the horn, making a more secure fastening, besides leaving the inside ofthe wire-feeding device.

.1 he standard.

`shoe perfectly smooth, as shown at Xb, Sheet which forms the nose D3, Figs. 4 and 5, of the spindle D, and by which the wire is supported as near as possible to the stock, to prevent it from bending under the pressure necessary to insert the screw, and bringing the endof the ,nose D3,- the stock, and the cutters nearly in the same horizontal plane, and cutting the wire level with the surface of the stock.

The geared pinion u for the cutter-arms is enlarged at its upper end to form a second pinion, u2, Fig. S, and has a bearing in the head. In this second pinion meshes the cogged end of a lever, M, Fig. l, pivoted in the head, and whose upper end is acted upon by a small projection, w, on the circumference of the cani L, Fig. 17, which operates the The vibration of the upper end of the lever M causes its lower cogged end to traverse back and forth over the pinion u2, turning the latter ,in alternate opposite directions, and thereby giving' the saine movement to the cutter-arms. (See Fig. 8.)

1t is necessary that the cutting ot' the wire be vdone instantly, and for this purpose the projection w is made verystee'p, and terminates abruptly, so that the cutters may at once open to allow the wire to again pass' between them and enter the stock.

To open the cutters instantly after the severing of the wire, a spring, m, Figs. 3 and 8, bears upon the geared end of the pivoted lever M, so as to throw it back, and thus cause the pinion u2 to revolve backward to open the cutters, and bring the other end of the lever in position to receive the action of the projection w.

I have described the vertical movement of the head, and have stated that in conjunction The post N2 has an oscillating movementcaused by its upper arm N3, having a pin and roll connection with a groovecam, O, on the canixshaft, while the lower arm N4, Fig. 11, is

forked and has an adjustable fulcrum-block, N5, working in a slot in the top of the rear of Any vibration of the upper arm N3 caused by its cam 0 necessarily causes the slotted arm N4 to vibrate inthe same direction but this arm, being -held by its ful' cruin-block N5 from any vibration, it must therefore, turn upon said fulcrum-block as a hinge, but the lower arm N4, being shorter than the other, causes the head to turn on its post-pin N and allow ofthe vibration of the cam-arm N3 by the hinge-joint connection of the head with the post. A, variable lateral movement of the head is eiiected by moving the fulcrum-block of the lower arml N4 nearer to or farther from the` post-pin N, in order thereby to vary the movement .of the head over the work to increase or diminish the distance between the screws. The adjustable fulcrurn-blocl; is 'ot' sutticient length to allow it to perform its function at any elevation of the head above the horn. The post-cam O is of such form as to cause'a slow lateral movement of the head to take place to the left, and while the screw is being inserted, and a quicker movement in an opposite direction, to place the head in position over the horn, to insert the next screw.

A new element inthe work-support consists in its having a laterally-reciprocating movenient with the head, and is carried by the hollow sleeve B, upon which the head is mounted, by means of a forked arm, P. extending from the sleeve, to which it is properly secured, and passes through an opening, y, Fig. 1, in the standard. This forked arm P rests and moves upon brace-stud z, which gives a support for its horizontal movement, and a pin, Q, passing vertically through the forked ends of this arm, forms the support for the work-support. Upon this` pin Q the horn is mounted by a sleeve between the forks ot' the varm so that it is free to have a rotating movement, while the arm P is allowed to have' a'vertical movement with the head, without imparting any vertical movement to the worksupport, as the play between the ends of the sleeve and the forked arms is equal to the greatest vertical play of the head. Through the sleeve of the horn is a set-screw by which to fasten it to the pin Q at just the proper height. In machines in which arotating horn has been used it has always been turned upon a tixed center; butin my plan the center upon which the horn revolves is constantly changing in traversing an arc over the baseend', yet always maintaining its work-supporting end in line with the spindle, and presenting a hardened imperforate surface in the axial line of its movement to form a resister and riveter for the sole-fastening.

'The cutter-carrying arms form the pressingnose, and, when the head is down, press the sole down upon thehorn just' where the screw ispbeing fed in, and hold the several layers of the material upon a surface which resists solidly the pressure from the screw when arrested by said horn. The solid resting-support for the work to be screwed serves as an anvil on By this construction itwill be seen that the work-snpport also has a compound movement to carry it back and. forth sidewise, to determine the distance between the screws, and perfect freedom to be turned on its axis at the same time. The head is raised, as in Fig. 12, to put the work upon the support, by means of a treadle, R, pivoted to the standard G, and having a vertical rod, S, passing up through the base oi' the standard, and bearing upon the forked arm P, (see Fig. 3,) where it is connected with the sleeve B supporting the head. In releasing the treadle R, the head E automatically adapts itself to the varying thicknesses of the work.

It is necessary to prevent any vertical movement of the head during the operation ot' inserting and cutting ot' the screw, and for this purpose I have devised an automatic locking device, constructed and operated as follows, viz: A pin, T, Fig. 10, rises from a projection on the standard, and is provided with a clamping device consisting of two blocks, z2, pivoteddn a carrier, T2, which moves up and down over the pin. The bearing-surfas of these blocks z conform to the shape of the pinT, and are pivoted in the same horizontal line, so that when the carrier T2 is kept horizontal these blocks z2 will move easily vertically over the pin. The inner end of this carrier T2 is titted to lnove `in a slot in the standard, and by which it is held from moving sidewise. This carrier T2 is supported at its inner end by a rod, T3. the upper end of which is connected to the base of the head, while the lower end passes some distance through the carrier, and has a spiral spring, m2, upon which the inner end of the carrier rests, with a nut resting upon the carrier, so as to keep it level when the head descends. The outer end of the carrier is attached by a ball-and-socket joint to one end ot' a vertical rod, U, having a screw-extension, its other end being connected by a similar joint to the slotted end of an arm, V, pivoted to the head, with a branch, V, connecting it with a groove-cam, V3.

Now, so. long as the carrier T2 is kept in a horizontal position no clamping-pressure of the blocks z2 is applied upon the pin T; but' so soon as one end is lowered the carrier becomes oblique to the positions of the blocks, and hcnce the blocks will be caused to bear, by reason of their pivots, upon the opposite sides of the pin T; and it is plain that any lifting upon the raised end of the carrier must tend to clamp the. pin more firmly. Just previous to the screw touching the stock the cam V3 has raised the vertical rod U, and with it l the outer end ot the carrier T, thus clamping the pin. The rod U, which has tilted the carrier, being connected to the head, any receding of the head from the work' would carry the rod U also higher, but which is prevented from so moving by reason of the carrier refusing to slide over the pin T, so that the greater the force exerted to raise the head the more firm will be the grasp ot' the'clamping device, thus making the headv as rigid as if it had no vertical movement during the operation of inserting the screw.

In order to get the head back over the work, to insert another screw, it must be raised from the stock, and consequently the lock must he taken oi'; and this is done bythe ca m V: forcing down the connecting-rod U, and depressing the outer end of the carrier T2, and applying the lock in the opposite direction; but this does not raise the head, but the rod, U being prevented from any greater descent by the clamp T2, and the cam V3 having a still farther throw, exerts its force upon the arm V, pivot-ed to the head therefore the head must rise, as all the force ot' the cam V3 is transferred to elevatethe pivoted end of the arm V, connected with said head but the llock still remaining, some provision must be made for such movement of the head without disturbing the lock. This provision is made by the rod T3 connecting the head E with the inner end of the carrier T2, Fig. 10, which at this moment is the highest, and the elevation of the head carries up this rod with it by compressing the spiral spring x2, which bears against the lower'side ofthe inner end of the carrier, and thiselevation of the head is preserved during part of its movement to the right over the work,wheu the cam V3 again allows the head to drop down suddenly upon the work and compress the parts tightly to'- gether, the clamp having been relieved from the pinT just previously to automatically determining the feed of the wire, and locking the head to insert another screw.

In uniting very thick work, an auxiliary pressure of the head upon the work is obtained by a rod, W, united tothe head and passing through an arm of the standard, with spiral spring, m2, Fig. 3, exerting a constant downward force vupon the head, and which mayl be relieved when desired.

The locking device is automatic as regards time, and also works irrespective of the relative height of the head above the horn, and holds the head equally for all thicknesses of work.

The height to which the head may be raised is regulated by adjusting the ball-and-socket connection` in the slot z3, Fig. 10, of the pivoted arm V, nearer to or farther from the head E, to suit the thickness of the work to be rcrewed together. This isimportant, because more elevation is needed when there is considerable difference in the thickness of the same sole than witha sole of comparative uniform thickness.

Hitherto the work has been moved over the horn in being fed, but in this machine the work is held stationary, while the support and the head move over the work, bringing them in anew position on the sole. In this plan the work is held by a self-adjusting edgeguide, c, Fig. 16, litted in a bracket, c2, and

extending beneath Ythe cutter-arms t. The point wh'ich acts on the edgeof the sole is roughened to hold the shoe, with slight pressure, from moving back with the head when taking a new feed. Its seizing end is kept up close to the arms which carry the cutters by a spring, v3, acting on its under side so that it will always strike the edge of the sole at whatever height the head may-be. It is adjustable lengthwise by cogged connection with a hand-lever, 114, so as to determine the distance of the screws from the edge of sole.

To control the speed of the machine, I iinploy a friction-pulley, X, which connects with the driving-pulley X2, Fig. l, and is operated to apply and release the'i'riction thereon by a treadle, X3, a connectingrod, X, from which forces a wedge, s2, against the friction-pulley. y This driving-pulley is arranged at the back of the standard, and the band therefrom passes over two loose pulleys, Y, at right an-l gles from the spindle-pulley F2, and as these pulleys rise and fall with the head, I com pensate for the slack in the driving-belt by means of a take-up follower pivoted to the axis of the drving-pulley and one arm, r2, of

which has a loose pulley, r3, Fig. 3, bearing against the belt, and the other arm, r, is weighted to cause this pulley to bear against the belt, receding as the belt becomes taut, and following it as it slackens,and thereby giving uniform driving-power to the belt.

The spool F, Figs. 13, 14, and 15, for receiving the coil of wire, is mounted in a framehf?, which is screwed upon the top end of the spindle.- It is provided with curved lingers n2 pivoted to the sides of the spool, so as to be folded therewith within the circumference to allow the coil to be placed upon the spool, and held thereon by turning the lingers n2 out, in which positions they are held by springs n3 acting upon angular portions of their bear- I ings. An interior spring gives the spool the necessary friction.

Operation of the machine: The machine having been set in motion, and the wire a fed through the spindle D, and between the feed-rolls H, with the head E pressing upon the stock and the segment-slide J in its elevated position, the spindle, revolv. ing, gripes and turns the screw threaded wire with it. The head is now locked upon the pin T by the cam V3 elevating the outer end of the lock-carrier T2, so as to prevent the least ascent of the head. The slide-seglnentJ is now caused to descend by the action of its cam Lto feed down the wire as fast as it enters the work.' At this moment the head commences its lateral movement to the left, caused by the cam Q operating the arm N3 of the hollow post N2, and said head turning upn its hollow post carrying the work, with its support, in its proper supporting position, with its armed support Prestng upon the base-stud Z, and preserving at all points its axial line of support, and uponv which it may be rotated. At this point the cam L, operating the slide-segmentJ, has forced it down,

operating the .feed-rolls H, and inserting the screw. The screw, having thus been inserted,

must be severed from the main length. This is done by the stud-cam w striking the end of the pivoted arm M, Ycausing its cogged end to revolve its geared -pinion u2, so as to cause the ends of the cut-ter-armst to approach 'each Lin readiness to be again operated by the i stud-cam w. As soon as the screwis inserted the cam V3 begins to force connecting-rod U down, releasing the lock; but, continuing in the same direction,.causes the clamp-carrier T2 to lock on the pin T in the opposite direction, the outer end of the clamp-carrier being now the lowest.

The further revolution of the cam V3, still pressing upon the rod U, which can descend no farther, causes the pivoted end of the camarm V to rise and elevate thereby the head. to release it from the stock. Now, the head being lifted clear of the stock, the cam 0, which operates the hollow post N2 by its arms N3 and N4, now reverses the lateral movement ofthe head, bringing it, with the work-support, to the right. The work, being during this time pressed against the edge-guide fv, does not lnore from the position to which it was carried to the left; hence it is retained in position for the insertion of the next screw. Just previous to complet-ing the movement of the head to the right the cam N3 has elevated the rod U, bringing the clampearrier level 'and relieving the lock, when a sharp curve in the cam allows the head and the rod to descend equally without making the lock, and thereby pressing the layers of the work compactly together, so as to determine denitely the amount of wire needed for the next screw. Just at this point the cam L, which operates the segmentslide, recedes by a 'sharp curve,

2, and allows the pressure-spring p to forcedown the third arm k, and with it the vertical rod n, until it strikes upon the stop-gage o at whatever height the head may be, and, by this means, arresting the ascent of the slidesegment J at vthis point, and holding it there until the cam L again acts upon the second arm k3, to force down again the slide-segment J, and bring up the vertical rod n in position to again set the feed at whatever height the head may be above the work-support. In this way the screw-wire is fed automatically, and varying lengths of screws may be inserted each revolution of the cam, severing a screw from the main length of wire (after the fastening is inserted) iiush with the surface of the work themoment the screw touches the worksupport, the time between inserting along screw anda short one being the same, and the feed of the wire taking place while the fast ening is being inserted. To remove work from and place it upon its support the operati described, the essential combinations and results stated feeding, holding,

-bet-ween each screw while or has only to place his foot upon the treadle of screws cut from a continuous length of andraise tle head.

wire, with a work-support free to rotate on its I have given a specific description of the axis at any point in its lateral movements several operating devices of the machine; but with the head, substantially as herein set forth. 8. The combination. with a rotative worksupport, ot' an unintermittent griping device for the screw-threadedwire, whereby said device has a Continous grasp upon the threaded wire during the operation ot' the machine.

A9. In a screw-inserting machine, a continuous corrugated or screw-threaded raceway reas my invention comprehends a broader principle than mere construction,l I do not therefore wish to'be coniined to the specific details but to vary the same so long as are obtained. Nor do I wish to be confined to the manufactureof boot-s and shoes, as the machine is well adapted for uniting the seams of hose, belting, and other similar work; and volving with the spindle, whereby an uninteralthough the horn has its advantages as -a mlttent grip is maintained on the wire, causyet I do not wish to be confined to such device, but to use any proper worksupport which will answer the purpose in properly presenting the work.

What is claimed in this invention for uniting the soles to the uppers of boots and shoes 1. In a machine for uniting the uppers to the soles of boots and shoes by screw-s severed from a continuous wire, an automatic laterally-reciprocating head, lcarrying the screw inserting, and screw-severing mechanism, to determine the distance between Vthe screws during the operation of inserting each into the stock.

2. In amachine for uniting the uppers to the soles of boots and shoes by screws cut from a continuous wire, a revoluble work-support, having an automatic laterally-reciprocatingmovement to carry the work the distance the latter is being ing it to turn with the spindle, while allowing the wire to pass through the raceway into the work, when the wire-feeding mechanism gives it motion.

10. The combination, with a work-support, of a revolving wire-carrying spindle, D, having both a lateral and a vertical movement with and equal to that ot' the head.

11. The combination, of a revolving wire-carrying spindle, D, and an automatically-regulated slide segment, J, for operating the unintermittent pressing and gripin g device revolving with the spindle.

12. '.Lhe combination, with the wirecarrying spindle D, of feeding and griping rolls H, having annular screw-threaded recesses and projections k L corresponding with the threads of the wire for receiving the same, and allowing the wire to lpass between them in the direction of its length, so that pressure may be applied to grasp and feed the wire without iujurin g it-s threads.

work-support,

inserted.

3. In a'machine for uniting the uppers to the soles of boots and shoes, the combination, with mechanism for feeding, holding, and insertin g screws and severing them from a con-iy tinuous wire, ot' a work-supporting horn, having a compound rotating and automatic laterally-reciprocating movement.

4. The combination, in a machine which inserts and cuts screws from a continu-ous wire', ot' a rotating work support and resister, having aconipound rotating and automatic laterally-reciprocating movement, with a head carrying the feeding, holding, and screw-severing mechanism, and having an automatic vertical and lateral movement.

5. The combination, in a machine for uniting the uppers to the soles ot' boots and shoes by screws cut. from a continuous wire, of an automatically-v'ertical adjustinghead, E, with a rotating work-supporu-A, having an automatic lateral movement, and in which the vertical movement of the head is independent of the work-support, substantially as herein set forth.

6. rlhe combination of mechanism by which screws are cut'from a continuous wire and inserted in the stock of a head, and a worksupport having a simultaneous and equal au7 screw-threaded wire, one or both of which has annularprojecting screw-threaded edges adapted to the threads of the wire, and into which they enter while the wire is clamped between the rolls, whereby pressure is made upon the core or body of the wire at two or more separate and distinct points.

1'4. The combination, with the wire-carrying spindle D and its automatically-operating eogged slidesegment J, with its annulargrooved geared pinions f, the pawl '5, and the ratchet It, whereby the descent of the slidesegment causes the feed-rolls to revolve and `.feed the wire, while allowing the said slidesegment to move upward without giving motion to the feed-rolls.

15. The combination with the revolving wire-carrying spindle D, of feeding and griping rolls H, constructed substantially as herein described, for feeding screw-threaded wire, with a rotating work-supporting horn, having a riveting-surface.

16. A revolving wire-carrying spindle, D, provided with a nose, D?, in combination with the cutter-supporting arms t, between which it enters, and the work supporting horn, whereby the wire is supported at the point of the severance of the screw therefrom.

17. In combination with an automatic vertil cally-adjustin g head, E, carrying the feeding,

tomatic laterally-reciprocating movement.

7. The combination of ahead, which carries mechanism adapted to insert various lengths 13. A pair ot' rolls for seizing and feeding with a work-support,

the head is alternately raised and kept from being raised.

27. The combination, in a machine for inserting screws in the manufacture of boots and shoes, of a locking device, one end of which is attached to the head E, and the other end connected toa lever, V, operated by the cam V3, whereby the locking device is brought in and out of action.

inserting, and severing devices, and a. worksupport, of an autoiilatic vertically-adjustiiig edge-guide, e, for the work, substantially as herein set forth. 18. In combination with an automatic verti- 'f cally-adjusting head, E, carrying the feeding,v

`inserting, and wire-severing devices, of an edge-guide, c, for the work, having an antomatic vertical adjustment and an adjustment at iight angles to the feed of the woi'k, subg stantially as and-fur the purpose herein set forth.

19. yThe combination, with. the revolving wire-carrying spindle D, and an automaticallyadjusting head, E, of a wiie-eoil-carrying reel, F, carried by said head, and revolving with the spindle to deliver ,the wire thereto.

20. The wire-coil-carrying reel F, provided with pivoted curved fingers n2, whereby they may be folded' to put on the coil and turned outward to hold it in place.

21. The combination, with a revolving wirecarrying spindle, having an automaticallyoperating slide-segment, J, revolving therewith to operate the feeding and griping de vices, and a work-support, of means forautoinatically determining the proper feed ofthe wire for the varying thicknesses ot' the Work by governing the movement of said slide-segment. i

22. The combination, with a wire-carrying spindle, having a slide, J, revolving therewith for operating` the feeding and gripiiig devices, of the vertical rod n, gage stop 0, lever K, operated by a cani, L, and a, spring, p,.acting upon said lever, whereby the relative height ofthe head above'the stop, when the stock is compressed, automatically determines the feed of the wire.

- 23. The combination, with the revolving spindle D, of means for throwing out of action the feeding' mechanism, without arresting the revolving motion of the spindle, and without releasing the grasp of the teed-rol'lsupon the wire.

24. In a machine for inserting screws in the manufacture of boots and slices, the combination, with an automaticvertically-adjusting head, and a work-support, of means for automatically locking the head at any pointcorresponding to the thickness of the work while inserting the screw.

25. In a machine for inserting screws in the manufacture of boots and shoes, the combination, with an automatic vertically-adjusting head, E, a revolving wire-carryin g spindle, and a work-support, of meansfor automatically raising the head a definite height from the work, whether thick or thin, substantiall y as herein described. j

26. In a machine for inserting screws cut from .a continuous wire in the manufacture of boots' and-shoes, the combination, with an the locking device, whereby thehead is allowed to rise when the locking device is in force.

29. The locking device, consisting of a tixed pin, T, pivoted clamping-blocks?, and a movratingcam V3, as described.

30. llhe combination with a work-supportand the locking device for the head, ofran adjustable lever, V V2 z3, whereby the head is caused to be lifted more or less from the work-support, as described.

3l. The combination, with the work-support and the vertically-movable head E,.of an auxiliary yielding rod, W, connecting the head the head upon the stock to bring the work close together, substantially as herein set forth.

32. A revolving wire-carrying spindle with its feeding and nnintermitteiit gripingrolls, and a vertically-moving slide-segiiient, J, for feeding screw-threaded wire, in combination ing screws cut from a continuous wire, in the manufacture of boots and shoes, of a treadle,

ing screws cut from a continuous, length of wire in the manufacture of boots and shoes, of a frictionl device operated by a treadle, X, with the vertically-adjustable head, substan- 35. The combination, in a screw-inserting machine, of a vertically-adjusting head, which carries the driving-pulley for the spindle, and a driving-pulley, X2, carried by the standard, with a take-up follower for making uniform the driving-power of the belt during the vertical movement of the head.

36. In a machine for inserting screws in the soles of boots and shoes, cut from continuous screw-threaded wire, the combination of the following instrumentalities, viz; a revolving automatic vertically-adjusting head, E, and a wire-carrying spindle, having the automatic Work-siipport, of an automatic locking device, feed device, -the unintermitting operating which constitutes the medium through which i screw-threaded griping-rolls forholding screwmoss 9 threaded wire while being fed, a device for severing the wire close to the work, a worksupport and riveter for the fastening, and an edge-guide for the sole, which rises and falls with the wire-severin g device, substan tially as herein set forth.

37. The combination, with a vertically-adjusting head, in a machine for inserting screws cut from al continuous length of screw-wire, of a bracket, P, secured to the head stem and furnishing a pivot-support, Q, for the worksupport, such bracket having freedom for vertical movement with the head over the pivotpin Q, and Without disturbing the function of the work-support, as herein set forth.

38. In a machine for inserting screws in the soles of boots and shoes to unite them to the uppers, the combination of a revolving wiref carrying spindle, unintermittent griping-rolls, a wirefeeding mechanism, and a work-,support, with cutters having their cutting-edges approaching in oblique lines, whereby the Wire is severed with a cutting-edge on the entering end of each screw.L

39. The head E operated by suitable meehanisln to have a slow side movement while inserting the screw, and a quick return into position to insert the next screw into the work, the latter moving only during the operation of inserting the screw, but is without movement during such return of the head.

40. The head and the work-support, adjustable to lvary their laterally-reciprocating movements, whereby to increase or diminish the distance between the screws.

41. The combination ot' the automatically laterally-moving head E, and the xed standard C, with the oscillating post N2 and its fulcrum-bloek N5, for the purpose set forth.

In testimony whereof, I have axed my signature in the presence of two witnesses.

LOUIS GODDU.

Witnesses A. W. ADAMS, N. S. HoTcHKIss.

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