US559129A - Machine - Google Patents

Description

(No Mqdel.) 5 Sheets-Sheet 1.

` L. GQDDU. SOLE SEWING MACHINE.

No. 559,129. l PatgntedApr. 28, 1896'.

have ,wax deposited upon them' are heated by steam conducted through pipes 'to said parts.

-'45 Y deviceI `which hasimparted to 4it variable To all whom t lmay concern:

UNITED STATES risica BROOKS, TRUSTEE, or PETEnsILiM, AMAssAoHVsETTs:

i SPECIFICATION forming part of Letters PatentNo. 559,129, atea April 2s, 189e.

V AppiinionjsiedDentiste13,1894. sensing, 532,171. Hemden j Be itknown that I, LOUIS GDDU, of `Winchester, county of Middlesex, State of Massachusetts, have invented an Improvement in Sole-Sewing Machines, of whichthe following description, in connection `With the` accom'- panying drawings, is aspecification, likeletters and iigurcs on the drawings representing like parts. 'd

The machine to-be herein describedl is of the' class more especially devised for sewing outersolcsto uppers, and. as herein shown a curved awl makes a hole in the 'sole and ,then

in the Welt', and t-he'stock 'having been fed f in position to be filled with thread a thread l pusher or inser-tcr located at the Asamclside of for the. proper distance to bring the awl-hole the sole rises," meets the thread, and puts the samein loopforin into. the awl-hole.

4sewed together issustained upon a Work-sup- --In` this present inventicnthe lstock to/be port which is free `to riseland fall at propel' times in the arc o f a circle substantially coincident with the center of motion of the curved awl and toward and from a stationary foot, the

work-support being' automaticallyadapted to the varying thickness of ,the stock, and by f vm'ovingin thedescribedcirclelthe,awl and Y `V the pusher or'device"used to .putthe thread in the aWl-hole 'are alwayfssire of working `together properly, notwithstanding the posi- 'tion ofthe work-support-due to the thickness ofthe stock. "lhe parts of -the machine against Vwhich the waxed thread'passes in the use of the ina-chine and which are liable to .thethread-guide on 'the segment carrying'said worlesupport and "have combined with the thread-guidedevices to` moveit in such directionafsto put the saidguide'in a particular position with rel-ation' to a Ithread-measuring movementtodrair out for presentation to the thread pusher for insertermore or less thread,

vaccording to the thickness yof.` the stock.

y The particular features in Which-my invenutionconsistswill be hereinafterdescribed, and

. iication, s..

indicated in the claimen-t `theend of the speci- Figure 1 in frontelevation shows the upper 'ppart of a sole-sewing machine embodying my invention; Fig. 2, a right-hand side elevation l ofthe parts shown 4in, Fig. 1. with the drivingwheel removed lgfig. 3, a vs'ection'in the line .1', Fig. 1. Fig. ;ton `an enlarged scale, 'shows the movable work-support, in subsequent iigfront elevation ofl 4parts of the stitclrformingfde'vices, work-support, feed device,` and p i tl1read-measuwring device, the awl and pusher being in theirlowest `position preparatory `to commencinga stitch.` g Fig. 6 is a right side. i, elevationl of some ofthe partsshown in Fig. 5.

Figs. to'll show details representing the `positions of the stitch-forming devices during the formation o f a stitch, the thread-guide being omitted in Figs. 8 to 10 toavoid confusion.

Fig. 12' showssome of the parts represented I .the cam-hubl5;` Fig.` 16, a detail showing the worklsupporgthe segmentor ca-rrier on which it is mounted, and the thread-measuring device, alsocarried by said segment, the threadguide being omitted; Fig. 16, a detail showing the sides of a tension-wheel; Fig. 1 (5b, a seca detailv of the rest f5, pressing device f S, and

caxnlz', and devices to" guide said rest and 'pressing devices. i

in Fig. 11, the work-support being removed to show thel thread-measuring device `and `tion on the line 2,', Fig. 16; and Fig. `17A shows theworking parts to be described. The head sustains .the camp-shaft A', fon which is a fast 1 pulley A2,' having 'a'convexed side Whichenters a 'eoncavity in a loose pulleyA", which #may be pressed against thefast pulley by a suitable wedge-forlrA under the control of alink A, attached to a suitable treadle, (not showin) whenever itis desired to start the machine. ,n l

`loca 6.o ures it being partially omitted to bet-ter shop` `parts behind;` Fig, 5, an enlarged detail in The clutch-pulley mechanisml and its controlling devices are all as usual.

The shaft A' has fast to it two hubs B C,

` which are grooved and otherwise shaped to constitute cams to operate the various working parts.

The stock to be stitched-"that is, the welt and outersole to be united-.-is placed between the stationary foot a, secured to a rigid part A of the head 'A (see Fig. 1) by a suitable .'bolt ct', andthe work-support.

A portion of the part AX is made circular in form (see Figs. :l and 3) and is provided with a circular groove I v' .to receive the segmental bar a, to the upper outer end of which is attached by bolt 2 the shank of the work-supportc, (shown best in Fig. 16,) said'gure showing it detached A12, in practice attached to a suitable treadleV and enlarged. The segmental'bar A6 has for part of its length at onel side (see Figs. 1G

and 161)) a iiange 60, which enters a segmental groove in the stationary part AX, the latterv being cut away near its lowcrend to let the teeth a4 of the segmental bar Aibc engaged by the teethu5 of a sector-lever A1, the hub (not shown) located at the fioor, the arm 'A111 having a heelA", which is normally borne against a suitable stop or shoulder of the framework by the stress of a spring A15, surrounding said shaftnear its other-end, (see Fig. 1,) one end of said spring resting against yav` fixed stud L11 (see Fig. 1) of the framework,

while its vother end is fixed with' relation to a ut or collar A16, suitably secured to the shaft,

said vspring normally acting to bear or press the work-support toward the stationary foot to clamp between a projection on said sup-v port and the lower end of 'said foot thel welt l and outer sole, with' th e' sole against the foot.

The work-support is moved automatically to enable it to adapt itself to the yvarying y be thethickness of the stock.

thicknesses in the material, and-to efect this the worksupport vin ust be lowered automatieally with relation to the f oot. The support is-lowered just before each feeding movement of the stockover'the-suppora'the lowering of the support being just enough to release the stockfrom ,-pressure, so that vvit may be fed easily, andthe lowering will be just the same in extent from the end of the foot whatever To eifect'this lowering of the work-support, ithaving a soleshstainiug face 4, provided with-an awl-slot 5,an edge-guide 6, and an-uppe'ruard 7 8, l have provided the lever A1 at its rear end with ratchet-teeth 9, which 'are engaged by a pawl 1),'pivoted `(see Fig. 3) 'atv b'on a'yoke b2, loose on a shaft b3, said yoke having an arm b4 provided with a roller or other stud (see Fig. 2) which enters a suitable cam-groove b5 ing madev adjustable chiefly to facilitate i stitching of double soles or soles wherein there .is a great difference between the 'thickness of the sole at' the ball and aty the'shank'; but for ordinary work the adjustment referr-ed to is not necessary. As the pawl descends from the position Fig. 3 it will pass below the rest 18 and will contact with 'the ratchet-teeth next below the rest, and one or another of said teeth will standjust belowr said restLaccording to the thickness of the'y stock then between the work-support and the presser-foot. 4 l

The lever A1 has a foot l2, which acts against a suitable shoulder or stop 13 of the framework when material of least thickness is between the work-support and foot.

The center of motion ofthe segmental bar A6, carrying the work-support, is so adapted y and arranged with relation,v to the center of motion'oftheawl and-threadpnsher or inserter l sectors as to be substantially coincident,-this being necessary tov thus insure uniformity' of distance ofthe awl-slot in the work-support from thecenter of motion of the awl and thread pusher or inserter, whatever maybe the height of the support due to the thickness of the stock.

The segmental bar A6 has vnear its upper end an 'Year which receives a stud 116, on'whiclr is mounted looselythe hub of the-threadguide b?, (shown enlargedv in Figs. 6 and 7,

and as having vtubular portions 12X-13X, for f 1 the passage of the'thread t,) a suitable spring 14, connected to said thread-guide close toits,

delivery end, acting continuously-on said thread to prevent vany accidental formation of slack thread between thethread-guide and the thread pusher orinserter c, the latter or inserter and awl being attached,^respec tively, to the-sectors c d,'of substantially the same shape and size, mounted loosely onor with relation to the same'stud 15, held in suitableears of a feed-frame D, having hollow' bearings to surround loosely a hollowrr shaft D', it having bearings inthe head and being free to be slid horizontally. 'The feed-frame D is located on said shaft betweenv a collar 16 and the hubv of 'an arm g", the collar being xed'to the shaft byaset-screw 30. The shaft D may be slid with the feed-frameas `re- -quired while feeding the stock, the face of the stock forming a so-called" basejli-neff having -a suitable notch to engage the thread v and put it into a hole previously made-in the 'stock bya suitableawl d, said thread pusherand during a part of the stitch-forn1ing operation, as willbe described, said feed-frame having a guiding extension D?, which is,ex

tended backwardly into or through 'a suitable guideway D3, fixed to the head. The pusher'- segment has a tubular hub 2O extended from one side, which, as shown in sect-ion,` Fig. 3,' lits thestud 15,' the hub of the `awl-seetor fitting loosely the hub of the other sector.' The 41o sector d is vbrated by or througha sector-- v4leverd of elbow-shape, (seeFig. 3,) mounted loosely upon the'shaft bi and having a roller'. suit-able cam-` or other stud which enters a ,i groove d6 inthe hub C. i

V 154 Thesector-lever c5, partially shownin Figs. l and 2, for moving the 'sector c", isA of the saine shape as the sector-lever d? just described', and it is mounted loosely on the same `shaftb` and has a suitable roller or other stud zo which entersa suitable dam-grooveI cG`(see Fig.

,15) atthe inner side of the cam-hubl5 The feed-frame D (see Fig. 3) has a `suitable roller or other stud 23, (shown'by dotted lines, Fig. 3,) which enters a groove 24' in the 2 5 periphery` o f thehub C', said cam-groove 24 andthe cam for actuating the sectors c d ``being of such shape, one wi'threlation to the other, as to enable both the a'wl and the `thread-pusher or rinserter, as shown in Fig,V`

r V5o 15fboth below @the work-support, to be moved forv stitching andy feeding 'inthe following i manner ommencing with Fig. 5, where s designatesV y stock, the `awl d will be elevatedjabove the .35rthread pusher or inserte'r-therein shown tol pierce the' stock, as shownfin` Fig.' 7 ,v 'and this done the ,feeding-'frame D-will be'moved far. enough to the left (see Fig.` 8)"to provide for.-

the propery distance between the' last stit-eh '4o andthe next stitch to be made, and then the feeding-frame willbe `stopped while the afwl is retracted into the position Fig.9,-and there- 'after the feeding-frame will be farther moved to the'left, taking` with it the awland thread pusher or inserter until the latter comes inl line with the holemin the stockV just made by the;a`w l, as in Figil l0, when the feedin gframe 'will befagain stoppedand the thread pusher )or insertar-will be elevated to engage the u5o threadft between". the Ythread-guide and v a` thread-measuring device i f, tov be described, t said device engaging said `thread just belowv the funderside of the work-supportand close i tOQrthe'point wheresaid threadis'joined `to the stock in the last stitch completed, nthe measuring device lnl istending'and holding the said thread correctly across the awl-hole 'and in the path of movement of the thread pusher jor insert-er, Vso that, it will en gage saidj thread` 'i 6o nnerringly andput a loop thereofinto thesaid 'y gwlihole, fthe measuring device f'x'eferred to during said operation being'move'd to give up the pusher or lthread-inserter the, thread` f heldby it, the point :l5-ofthe n ,ieasuringlde-` o5 vicebeing slightly turned up, asshown in* Fig- 12, to enable the thread held by it-'toslip off said point easily just after the thread has been started into theawl-hole.

To assist in feeding the Work I employ, in

connection with the awl, a helper g, having a point'to penetrate the sole or the-channeled part thereof, if a channel is used, the ,end of saidhelper havingfa shoulder or .face at 2t (see Fig.` 5)`,toa`ct as a hammer "against the end of a bight of thread pushed through the sole or exposed above'the sole andleft by the.

thread pusher or inserter,` said face acting as a hammer to upset or flatten out the exposed.-

end or bight of theloop offwaxedthread leftl exposed,- as stated.A

The helper g is attached to the lever' g', bev fore described, said lever (`see Fig. 3) being extended backwardly and' upwardly and bei frame to" space the stitches, as stated, and

then it is elevated sufcien'tlyto clear the work and remainsout of engagement 'there- Iwith while the second part of the lateral movement-of the feeding-frametakes place, j or while the awland thread pusher or inserter, i

both out of the stock, are being moved laterally to putthe thread pusher or inserter` opposite the awl hole; otherwise theV helper would feed the stock laterally at theywrong time.. About as the thread pusher or inserter is started to enter thefawl-hole, as stated, the helper again descends on the 'stock andholds y the same down close to the vawl-hole, while the thread pusher or inserter pushes the loopinto IOC and through, it maybe, said hole, and then the helper is lifted, andl while the awland thread pusher or inserter are out of the stock i 'the feeding-frame is returned to its'startingpoint. At then'ext descentV of,` the helperit acts to batter down the exposed, end of `the 'loopi .i The thread-measujring device f, as ,shown `best'in Figs. 2, 13, and 1G, isattachedA by a suitable screw ff to an earof a rock-shaft f2, mounted in a sleeve-like bearing f3, attac-.hed

ilov

to and movable withthesegmentA', before.

described, Whichcarrie's the worksupport, said rock-shaftY havingextended `backwardly from it an arm` f i4, which'is normally borne against'a rest f5, (see Fig. 17,) fastona sliding rod ff', saidrest having a'roller or` other stud 33, (see dottedline, Fig. 2,) which enters the cam-groove 7"7 in the periphery ofthe hub 'B,'said rod havingv a peculiar sliding move- `ment back `and`-front foreach stiteh, ,The

rod f is surrounded loosely by a pressing device. f 8, a'cted upon bya 'suitable spring f",

shown `as surroundingsaid rod'and as] ab'utting-at lone end against a part of thefframework;` i L -f Thev framework has attached to itin anadnearer the arm f4 tothe lower en d of the cam- 71, the thinner the stock. The rest f5, as it is moved to the left in Figs. 1 and 17, acts on the arm f4'and moves it and the thread-measuring device always back to its starting-point, so that the thread will always be engagedin just the same way at the `thread-guide. This backward movement of the measuring deviceI to its starting-point happens. While the awl and thread ,pusher or inserter aremoving sys back to their-starting-point after having made a stitch.- y u Y J ust as-the thread-measurin g device reaches its initialiorv starting point the cam-surface 36,- (shown by dotted lines,-Fig.l2,) by its 'de-'- creasing diameter, permits the roll 37 on the lever 3S, pivoted at 39 on a rigid part of the framework, to'turn underv the action of the spring-4.0, and the level` 38 is thereby turned su fciently from the upper end of the thread- .guide to let a spring41 (shown by dotted lines, Fig. 2) act on the ear of the' upper end of the thread-'guidel and cause the delivery end-'thereofto press inwardly just below the end 'of the thread-measuring device, so that the point of delivery of the thread from the thread-guide is placed alittle behind the point 25 of the measuring device, said thread-guide remaining in such position until thepusher has risen into the hole made by the awl. )Vli'ile the thread-guide so remains at rest, atheawl is raised to enter the stock and the l yresti]c5 is moved back to the right, and the thread-measuring device acted upon by the pressing device fs'is madeto move away from fthe thread-guide in the direction to act on' the thread extended -therefrom tothe stock,

the thread-measuring device by such move- 'ment getting out of the way of the rising awl, the movement of the said vmeasuring device to pull thread from the thread-guide, being continueduntil the arm f4 meets the cam 711,;

which it does sooner or later, according to the thickness of the stock, between the worksupport and the foot. The awl having been withdrawn from the stockand the awl and hole.

thread pusher orinserter having been moved under thestock to put the latter in line withv the awl-hole, the lever 381s moved and its Vouter end is depressed to act on, the upper end lot' the thread-guide and cause its lower or delivery endl to be put exactly in proper. position to present the thread unerringly toy the thread pusher or inserte'r-by the time the latter arrives in position to enter the awlacts to push a loop of thread into the awlholethe slide-rod f is again moved to the left, (see Fig. 1,) causing the rest f 5 lto again Now as .the thread pusher or inserter' act on. the arm f4 and move the measuring n device back toward its startingepoint to thus enable it to `give up the thread held by it to the thread pusher or inserter, as described, and go toits initial or vstarting poin't.l

The length of the feeding-*stroke of the shaft .D is determined, as herein shown, by a plug D?, (see Fig. 1,) having a shank portion provided with teeth engaged by a piniontt on a suitable rotatablel stud 4:5, vwhich maybe v'pressed -by a pin 46 or otherwise, ifs-being held when left in suitable manner. The spring 47 (see Fig. 1) -acts against one endof the .shaft D and' normally :keeps the .roller-stud 23 against the right-hand sidetsee dotted lines, Fig. '3) of the cam-groove 24, said groove be ing at one-part enough .wider than thediamveter of the stud 23 to'provide in usual )manlneri'or a movement of the shaft D suicient -to enable the maximum length ofy the stitch to be made.

m, through a stripper m', thence over two rests or-studs m2 m3, and thence once around a-holding-whcelm, pivoted at m5, said wheel having a-V-sha'ped peripheral groove to receive the thread andhaving at one side ase-y r'ies of ratchet-teeth 50, (see Fig. 16%) which 'are normally acted upon bya pawl 5l to pre vent any. retrograde movement of the said y wheel during the action of the pull-off on, shown as a lever pivote'd at mT and having a roller or otherA stud 52, which is normallykept against a suitable actuating-cam 53, (shown Thel thread t is .led from a suitable wax-pot' roo by dottedline in Fig. 2,) said pull-off acting on the thread t between the two supports mt m3 while the pusher is coming back out of the stock to thus pull olf from the wax-pot ,enough thread for the requirements of the longest stitch, said thread'so pulled olf being left slack by the rising of the pull-oit, so that the thread pusher or in'sertcr, when it is again to actto put thread into the aWl-hole, may nd Vslack thread which may be taken bya strain oiily sufficient to rot-ate the wheel in".

IIO

The feeding-frame D has (see Fig; 3) Aa spline o1' guide 54, whichl is embraced bythe notched lower end of the arm f otsaid rest f5, it in turn having a' guide 55,- which is embraced -by the notched lower end of the pressing device fs, the said devices f X and f8 being thus each guided and separately movable in a right line.

To lower the work-support for the removal 'of the Work, draw down rod A12.

I claim- 1. A movable work-support, and an arcshaped bar to which it is connected, combined with a circnlarly-curved g'uideway o r track supported exteriorly to the center of movement of said bar and in which the latter is free to be moved, and means to move said bar, substantially as described.

2. Ina sole-sewing machine, astationary presser-foot, combined with a movable worksupport, an arc-shaped bar to which it is connected, a circularly-curved guideway or track t bar, substantially` as described.

supported exteriorly to the center of "movement of said bar andin which the latter is free to be moved, and means to move "said 3. ln a sole-sewing machine, a work-support, a segmental bar to which said Work-support is attached,l and a guide for said bar, combined with athread-guide pivoted on'saidrbar,

and means to move the bar and also to move the thread-guide on its pivot, substantially as described.v-`

4f.` In -afsolesewing machine, a work-support',ase`gl1ental baron which said work-support is mounted, and a guide for said bar, cornbinedwith a thread-measurin g device pivotally' mounted on said bar, and devices to move said thread-measuring device, substantially" as described. y 15, In a sole-sewing machine, an awl-sector,

a curved awl connected thereto, ahorizonl tally-movable feed-slide having a stud or fulcrum, means to turn the said awl-sector about said stud or fulcrum to cause the same toenter and retire from the Work, and devices to move thefeed-frame horizontally while the awl is in the work, combined with a stationary presser-foot, a movable work-support, a segmental bar to which the work-support is attached, and means to move said bar, substantially as described. 4

G. In a sewing-machine, a presser-foot, a werk-support made movable in thearc of a circle toward and from'said foot, an awl-sector, a curved awl attached thereto, asector c,

a curved thread pusher or insel-ter attached thereto and located at the same side of the 1 stock, a horizontally-movable feed-frame carryin g said sectors, and devices to actuate said parts, whereby the awl is made .to enter, feed,

attached to said sector, means to move the sector, means to move the feed-frame While the awl is in the work, and a presser-foot and i work-support, combined with a helper, and

o actuatesaid sector to cause the awlto enter;- vand retire from the stock,.combined with a` means to move it to bear on th'e Work and travel with the feed-frame while the latteris being moved horizontally,substantially as described. l

v 8. o In a sole-sewing machine, a presser-foot, a curved awl, an awl-sector, and means to yielding work'- support having.4 depending 'shields to act as guards to prevent the contact of the upper with the awl or-.its sector as 1. the shoe is being turned on the work-support,

*and means to sust-ain said work-supportand lowerit automatically to release the stock ybetween it and the said foot preparatoryto each feedingmovementof the stock whatever may -bethe thickness, substantially as described.- i. .Y V i l o .y 59. In a sole-sewing 1nachine,-a Work-support, a carrier therefor composed of a seg-'- I mental bari, a thread-carrier, and a: thread- `measuring device, the said carrier and meas-` uring device beingbothvpivotally mounted on said bar, a `lever to tip said thread-carrier on said segmental ban-combined with apositioning-cam, against one I' or `another part of which rests al1 arm forming part of the thread-measuring device, and devices to engage said arm' Wherever it be left and move themeasurin g deviceA for a greater or less distance as required by the thickness of the stock, substantially-'as described.

l0.. A stationary presser-foot, a segmental toothed bar, 'a work-support connected to said bar, a lever toothed at one end to en# gage said bar and having ratchet-teeth, combined with a luniformly-moving pawl, and a rest for one end of said pawlwhen in its retraeted position, said pawl engaging one or another of the ratchet-teeth of said lever according to the thickness ofthe stock then between the Work-support and s 'aid foot, said pawl, in its forward or edective stroke serving to lower the work-support uniformly lfrom a variable base-line to uniformly un-I clamp the stock, whatever its thickness,

prior to feeding thesame over the Work-support, substantially as described.

11. `The combination with a thread-measuring device and a thread-'guide to present a thread directly thereto, of a spring carried by the thread-guide and acting on the thread v close to the delivery-eye of the said threadi t guide, substantially as described. l

l2. The combination with a Work-support, i

a segmental bar to which it is attached., a thread-guide made asa lever provided 4with IIO a roller-stud and carried by said bar, means to move `theyloaigand a spring to normally move said thread-guide-in one'direction, cfa

lever having a curved, face to permit said roller-stud toroll over it as the said bar 1s moved, and means to' move said lever to actuate said thread-guide in a direction opposite the movement impartedito it by said spring, substantially-'as described.

13. The feed-frame, the sliding rod f6 and o, its attached rest, the end of which is guided in its' reciprocation by means of said feedframe, substantially as described` 14. The feed-frame, the guide-rod f6 and its attached rest, guided in its longitudinal movement by said feed-frame or by contact,

with a portion'of said feed-frame, combined withthe presser-army, mounted loosely on said guide-rod and guided at its end by a portion of said rest, substantiallyas described.

15.-"ln a sole-se`wing machine, arpresserfoot,a Work-support, anda curved 'segment on,y which said work support .is mounted.

bined with a thread-measuring device mounted on said segment, and means to actuate said thread-measuring device, tovoperate, substantially as described. A

In testimony whereof I have'signed my name to this specification in. the presence of two subscribing Witnesses.

LoUis GoDDU.

Witnesses:

JOHN C. EDWARDS,

FREDERICK L. EMERY.

Images