US385299A - Sewinq-machrne for connecting soles and uppers - Google Patents

Sewinq-machrne for connecting soles and uppers Download PDF

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US385299A
US385299A US385299DA US385299A US 385299 A US385299 A US 385299A US 385299D A US385299D A US 385299DA US 385299 A US385299 A US 385299A
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loop
tongue
sole
needle
slide
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B15/00Machines for sewing leather goods

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  • This invention relates to machines of the character shown in our pending application for Letters Patent for scwing-nmchine for connecting soles and uppers, filed April 30, 1886, Serial No. 200,674 ;and it has forits objecttoprovide improved mechanism i'orsecuring uppers to soles of turncd'shoes by stitches or loops of thread passed through the upper and through a portion of the sole and locked by tongues of leather cut in one of the sides of the sole, as shown in Letters Patent No. 242,328, granted to T. K. Keith, May 31, 188i.
  • Our invention consists in the combinations and improvements hereinafter described and claimed, whereby the tongues of leather are cut, the loops of thread are engaged therewith, the boot or shoe isfed after the engagement of each tongue and loop, and the shoe is supported during the operation.
  • Figures 1 and 2 represent side elevations of our improved nut chine.
  • Fig. 3 represents a front elevation of the same.
  • Figs. 4 to 22, inclusive represent views of different parts of the machine, said figures being so referred to hereinafter as to render a separate description of them at this point superfluous.
  • Figs. 23 to 30, inclusive represent different parts of the operation of the machine.
  • a represents the head or frame in which the driving shaftb isjournaled, saidhead being supported by astandard or pedestal, 0..
  • the driving-shaft is rotated by power applied to a driving-pulley, d, which is normally loose on said shaft and is connected thereto by a clutch operated by the depression of a treadle at the based the pedestal, the shaft being operativelyconnected with the Serial Np. 247.445. (No model.)
  • the needle n is attached to a needle-arm, 0, which is pivoted at 12, Fig. 4, to fixed earson the head a, and is oscillated in a vertical plane by means of a slide, q, Fig. 5, fitted to slide in a vertical guide in the head a, and provided with a roller, r, Fi gs. 4 and 5, anda-cam-groeve, s, in a disk, t, on the driving-shaft, said groove receiving the roller 0', and a link or .r'od, a,
  • cam 25 reciprocatcs theslide q vertically and, The
  • . 0 represents a rest against which the upper. surface ofthe sole isheld by the operator during. the operation of the machine. Said rest we term a depth-gage, and its ofiice is to determine -the depth of the entrance of the feeding and'perforatingawl, hereinafter described, and the needle into the sole.
  • the depth gage is formed on aslide, w, which is adapted to move toward and from the front' of the machine in a fixed guide, and is nor mall'yvheld back by a spring, a.
  • a lever,'b, Figs. 1 and 9 is provided, whereby the operator can move the depth-gage forward for the purpose of placing the upwardly-projecting edge a of the upper between said gage and the i'eeding-awl d.
  • Said awl which is an important part of our invention, is'aiiixed to an arm, e", which is adapted to reciprocate horizontally in a slide or carrier, f, which in turn is adapted to reciprocate in fixed guides g g on the head a.
  • the said block and slide are moved alternately to give the awl the following motions: first, a forward lengthwise motion to cause it to penetrate the work; secondly, a forward lateral-motion while it isengaged with the work, wherebythe latter isfed; thirdly, a backward lengthwise motion vto withdraw it from the work, after the feed movement, and,
  • the jaws w m are ailixeda espcctively,tole-. vers a'f b", which are both pivoted at c" to a w, which is arranged to bear agai nstthe per.
  • jaw or dog by reason of its form and direction of movement, draws the sole upwardly against the depth-gage when it penetrates the fixed earon the head a and have their upper ends connected by linked" d, Fig. 11, to the lower end of aslidc, c, which is movable in a vertical guide in the head a, and is reciprocated by a cam-groove, f",in the disk t on the driving-shaft, said groove receiving a roller, g", on the slide e.
  • the links dd and levers a" b constitute a lazy-tongs operated by the upward movementof the slide a to move the jaws w 00' toward each ether and cause them a to grasp and hold the work,and by the downward movement of said-slide to separate said jaws and relea'se the work.
  • the rest h" is a horizontal roller supported by a slide, j, adapted to move horizontally in a guide or way on the head a and normally pressed forward bya spring, k", Figs. 2 and 13, which presses the rest outwardly toward -lOO the operator and permits it to yield asnmy be required by variations in the contour .of the UPDB
  • the lower rest, t" is attached to an arm, Zf,
  • The-gear 3 -t is connected tothe sleeve 29 by a key, 37, whlchcanses the sleeve and gear to rotate together. but permits the gear to move lengthwise of the sleeve.
  • the gear is pressed by a'sprihg, 38, toward the tension-wheel, and a frictional washer, 39, is interposed between the gear and wheel.
  • The-wheel is thus adapted to rotate independently of the gcar,a nd'while the spring-pressed,
  • gear and the frictional washers prevent such independent rotation during the regnlar'operation of the machine they permit; it when unusual strain is exerted on the thread, as by the operator pullingit from the wheel.
  • the .awl is at this time about at the centerof its feeding movement from right to left, and upon-the starting of the machine the an] completes its feeding move-- ment, carrying the work to the left and completing the feed movement.
  • the jaws to a then approach each other, the penetrating jaw w entering the outer surface of the sole a'littie to the right'of the .awland pressing the work against the supporting jaw to, and at the same time drawing thework upwardly against the depth gage.
  • Whiletheneedle is drawi iig the thread through ICO to bear on the loop. J nst as the cast-oft" moves below the needle the latter moves slightly forward to release the loop, which is then depressed and separated from the needle by the continued downward, ,movement ot' the casto-fi'. After the casting off of the loop the tension wheel is rotated to tighten the stitch over the tongue, the loop spreader remaining on the tongue during this operation in position to cause thcloop to slip oil from its point at the extreme base of the tongue, so that there is no possibility of the loop being laid 'suftlciently near the free end of the tongue to-make it liable to slip off from the tongue.
  • StitchI- interlockings otthe thread-loops with the tongues are at uniform distances t barb of the needle when-the latter is projecting ports for the upper during the operation of cutting the tongues in the sole, and of drawing the loops of thread and interlocking them 8", formed on it.
  • Figs. 2, 13, and 14 represent a bolt, q", affixed to the head and located between the slides j" p, which carry the rests.
  • threaded portion is a nut, 1"", having an arm, Said arm is connected by a link, it, with one end of a lever, a, which is pivoted at v to the head a, and has at its opposite end a roller which is held by a spring,
  • a clamp, 3 made tubular at one end to bear against the inner end of the nutr", and provided at its other end with two clamping-faces, 4 4, formed to bear against the outer surfaces of the slides j p.
  • outer surfaces of the slides are preferably milled or corrugated, so that when the clamp is forced against the slides by the rotation of the nut it will firmly lock said slides. It will be seen that when the nut r" is turned in one direction it will cause the clamp 3 to lock the in the opposite direction will release said slides.
  • Aspring,s may be employed to sepa-; rate the clamp from the slides when the nut releases the clamp.
  • Said arm represents the looper arm (best seen-in Fig. 17) which places the thread across the through the stock.
  • Said arm is attached to the looper-bar 6, which isjournaled in a hearing inthe head a, and is oscillated in said bearing by a sleeve, 7, which has a curved slot, 8, Fig. 20, receiving a stud on said bar.
  • Said sleeve is reciprocatcdon the looper-bar bya lever, 9, Fig. 17, pivotedat 10 to the head a, and connected at one end to the sleeve 7 and at the other 'end to the awl-carrying ba're.
  • the movcmentsof said bar oscillate the lever hand cause the latter to reciprocate the sleeve 7, the slot of which, acting on the stud ofthe looperbur, rocks the latter at the proper times.
  • the loop-spreader which enters the loop drawn out by the needle preparatory to the operation of casting oil the loop from the needle.
  • Said loop spreader is a curved arm rigidly attached to a slide, 13,
  • the lever is pivoted at 15 to a fixed car on
  • the belt is screw-Q threaded at its outer portion, and on said Said faces and the cillatethe loop spreader toward and from the work.
  • the loop-spreader has also an upwardand-downward movement imparted by a slide,
  • the cast-01f 21 is a bent-wire arm attached to a rock-shaft, 22, which is journaled in bearings on the side of the spreader 12, and has on its upper end a pinion, 23, ⁇ vhich meshes with a rack, 24.
  • Said rack is fitted to'slide in a guide, 25, attached to the loop-spreader 12, and is connected by a link, 26, with a fixed ear,27,on thehcad a.
  • the upward anddownward movementsof the loop-spreader cause the rack 24, which does not move up anddown, to rotate or rock the pinion 23 and thus oscillate the cast-ofi.
  • the successive movements of the loopspreader and castoft' are as follows: During the latter part of the outward or backward movement of the needle the loop-spreader is swung forward under the needle, as shown in Fig; 26, and then is somewhat depressed, as shown in Fig. 27, by the downward movement of the slide 13. is moved slightly forward to release the loop, and then the'cast-oti' is swung downwardly upon the released loop and presses it-downwardly from the needle, as, shown in Fig. 28.
  • the tension-wheel is adapted to rotate independently of the gear, and is conncctedthere with by friction devices, which, while causing the wheel to rotate with the gear in theoperation of the machine, when the thread is not under unusual strain; permits it to be indepeudently rotated by strain on the thread jection is obviated by our iinpro-vcd outside feed,
  • the depth gage is arranged to support the upper surface of the sole directly over the point where the awl cnters thesole preparatory to feeding it.
  • the lateral extension of said gage enables it to firmly support the shoe and prevent it from tipping lengthwise, so
  • each awl-holc is made at a uniform depth.
  • the capability of the depthgage to move outwardly enables the projecting edge of the upper to be rcadily'placed behind the depthgage in presenting the shoe to the machine.
  • the tongue cutting knife may be arranged to act at a distance from the point where the needle acts without departing from the spirit of our invention as herein claimed.
  • a curved oscillating needle arranged to enter the incisions made by the tonguecutting knife, a looper, a cast-oil, and tension devices co-oper- 'ating with said needle,wherebyloops of thread as set forth.
  • the combination, with the feeding mechauism aud the complementary stitch-forming mechanism, of the loop-spreader, the slide 13, supporting the same, the lever 14, can rying said slide, mechanism for oscillating said lever, mechanism for-reciprocating theits slide independently, the east-off barjournaled in bearings on the loopspreaderand provided with apinion at one end and a'eastoff, 21, at" the other end, a rack, 2t, adapted to slide in a guide on the loop'spreader, and a connection, 26, between said rack and'a fixed support whereby the rack is caused to oscillate the castoff when the loop-spreader is .raised and lowered, as set forth.

Description

8 (No Model.) 18 Sheets-Sheet 1'.
P. A. 8; J. COUPAL. 8
SEWING MACHINE FOR OONN EGTING .SOLE'S AND UPPERS. No; 85,299.
Patn'qed-Ju n e 26, 1888.
hr-VENTU E: 24-
(No Model.) I P. A. 8: J. GOUPAL SEWING MAGHINE FOR CONNECTING SOLES. AND UPPERSLV No. 385,299. PatentedJune 26,1'888.
13 Sheets-Sheet 2.
NAVENTEII 5::
IT N ESSESI.
13 Sheets-Sheet 3.
(No Model.)
P. A. & J. GOUPAL. I SEWING MACHINE FOR CONNECTING SNOLES AND UPPERS. No. 385,299.
- Patented June 26 13 Sheets-Sheet 4.
(No Model.)
P. A. 8; J. COUPAL. I SEWING MACHINE FOR GONNBOTING SOLES AND UPPERS. No. 385,299.
Patented June 26, 1888..
F U5 gpfiNVWx WM WITNESSESH 13 Sheets-Sheet 5.
(No Model.) P. A. & J. OOUPAL.
SEWING MACHINE FOROONNEGTING SOLES AND UPPBRS. No. 385,299.
WI T' 13 SheetsSheet 6.
(No Model.)
P, A. & J. GOUPAL; SEWING MACHINE FOR CONNECTING SOLES AND UPPERS.
Patented June 26, 1888;
.lOf
5 15 s .E E N T (No Model.) 13 SheetsSheet 7.
PUA. & J. COUPAL.
SEWING MACHINE FOR CONNECTING SOLES AND UPPERS.
No. 385,299. Patented June 26, 1888.
NIP
NVEN'TEI WITNESS E (No Model.) 13 Sheets-Sheet s.
.P. A.- & J. GOUPAL.
SEWING MAOHINE FOR CONNECTING SOLES AND UPPERS. No. 385,299.
Patent (1Jun26, 1888.
Fl .5 W I F IJESS E81:
B L A P U 0 C J & A
(No Model.)
SEWING MACHINE FOR GONNEGTING SOLES AND UPPBRS.
Patented June 26, 1888.
r K, I A U v 7N Wffl (No Model.)
13 Sheets-Sheet 10.
P. A. & J. GOUPAL.
SEWING MACHINE FOR CONNECTING SOLBS AND UPPERS; No. 385,299.
Patented June 26, 1888.
i; I Q
; N i 9 (U) Q E ib X'CD o F3: W!"
WITNESSESII (N0 Model.)
I 13 Shee 8 J. GOUPAL v SEWING MACHINE FOR CONNECTING SOLES AND UPPERS. w 180,885,299. 8 r Patented June 26, 1888.
(No Model.) .13 Shets-Sheet 12.
I P. A; & J. GOUPAL. v SEWING MACHINE- FOR QONNEOTING sows AND UPPERS.
N0.'-385,Z99. 8 Pa en edJune 26, 1888..
WTNESSESH INVENTEIFSZ.
(No Model.) 13 Sheets-Sheet 13.
P. A. 8 J. GOUPA L.
SEWING MAGHINE FOR CONNECTING SOLES AND UPPERS.
No. 385,299. Patented June 26, 1888.
Wuwzass; lNv NTu su PETER A. COUPAL AND JOSEPH COUPAL, OF BOSTON, MAssAouUsn'r'rs,
ASSIGNORS TO THE LEATHER LO PORTLAND, MAINE.
OK SEWING MACHINE COMPANY, OF
SPECIPICATIQN forming part of Letters Patent: No. 385,299, dated June 26,1888.
Application filed August 20, 1887.
To all whom it may concern.-
Be it known that we, PETER A. COUPAL and Josnru COUPAL, of Boston, in the county of Suffolk andState of Massachusetts, have invented certain new and useful Improvements in Sewing-Machines for Connecting Soles and Uppers, of which the following is a specification.
This invention relates to machines of the character shown in our pending application for Letters Patent for scwing-nmchine for connecting soles and uppers, filed April 30, 1886, Serial No. 200,674 ;and it has forits objecttoprovide improved mechanism i'orsecuring uppers to soles of turncd'shoes by stitches or loops of thread passed through the upper and through a portion of the sole and locked by tongues of leather cut in one of the sides of the sole, as shown in Letters Patent No. 242,328, granted to T. K. Keith, May 31, 188i.
Our invention consists in the combinations and improvements hereinafter described and claimed, whereby the tongues of leather are cut, the loops of thread are engaged therewith, the boot or shoe isfed after the engagement of each tongue and loop, and the shoe is supported during the operation.
Of the accompanying drawings, forming a "part of thisspecification, Figures 1 and 2 represent side elevations of our improved nut chine. Fig. 3 represents a front elevation of the same. Figs. 4 to 22, inclusive, represent views of different parts of the machine, said figures being so referred to hereinafter as to render a separate description of them at this point superfluous. Figs. 23 to 30, inclusive, represent different parts of the operation of the machine.
.The same letters of reference indicate the same parts in all the figures.
In the'drawings, a, represents the head or frame in which the driving shaftb isjournaled, saidhead being supported by astandard or pedestal, 0.. The driving-shaft is rotated by power applied to a driving-pulley, d, which is normally loose on said shaft and is connected thereto by a clutch operated by the depression of a treadle at the based the pedestal, the shaft being operativelyconnected with the Serial Np. 247.445. (No model.)
driving-pulley so long as the treadlc is held depressed by the operator and disconnected upon the release of the treadle. The clutch and means for operating it are old and well known in various types of machines, and as' theyform no part of our invention are not here particularly described. To the drivingshaft are aflixed the series of cams which op-' crate the various parts of the machine, as
hereinafter described. i
crepresents the tongue-cutting knifo,which,
as here shown, is segmental and is ii-shaped in cross-section, its cutting-edge being formed tocut a. Vshaped tongue, f, Figs. 28 and 29,.
in the outer surface of shoesole g. The knife is attached by a clamp to a lever, h, which is mounted to oscillate in an oblique path on an oblique stud, 1?, Fig. 1, affixedto the head a. y
The path in which the knife mdves is oblique to that in which the curved needle moves, the
lower end of the lever k with an armflt', on the knife-carrying lever h. The rod is connected to the lever and arm by balls formed on the ends of the rod and sockets formed in said leverand armto receive said balls. I The needle n is attached to a needle-arm, 0, which is pivoted at 12, Fig. 4, to fixed earson the head a, and is oscillated in a vertical plane by means of a slide, q, Fig. 5, fitted to slide in a vertical guide in the head a, and provided with a roller, r, Fi gs. 4 and 5, anda-cam-groeve, s, in a disk, t, on the driving-shaft, said groove receiving the roller 0', and a link or .r'od, a,
connecting the lower end of the slideq with an car on the needleann. The rotation of, the
cam 25 reciprocatcs theslide q vertically and, The
causes the latter to oscillate the needle. relative arrangement and time of operation of the knife-and needle are such that the needle moves forward after the knife has cut a tongue in the work and then receded therefrom,f thc needle entering the cut made by the knife and and through the edge of the sole and the upper bearing against said edge, so that the loop of thread drawn back by the needle through the upper and the edge of the sole will be in' position to interlock with the tongue,as here'i nai'ter described. Y
. 0 represents a rest against which the upper. surface ofthe sole isheld by the operator during. the operation of the machine. Said rest we term a depth-gage, and its ofiice is to determine -the depth of the entrance of the feeding and'perforatingawl, hereinafter described, and the needle into the sole.
' The depth gage is formed on aslide, w, which is adapted to move toward and from the front' of the machine in a fixed guide, and is nor mall'yvheld back by a spring, a. A lever,'b, Figs. 1 and 9, is provided, whereby the operator can move the depth-gage forward for the purpose of placing the upwardly-projecting edge a of the upper between said gage and the i'eeding-awl d. Said awl, which is an important part of our invention, is'aiiixed to an arm, e", which is adapted to reciprocate horizontally in a slide or carrier, f, which in turn is adapted to reciprocate in fixed guides g g on the head a. The said block and slide are moved alternately to give the awl the following motions: first, a forward lengthwise motion to cause it to penetrate the work; secondly, a forward lateral-motion while it isengaged with the work, wherebythe latter isfed; thirdly, a backward lengthwise motion vto withdraw it from the work, after the feed movement, and,
fonrthly, a backward lateral motion'while itis' withdrawn from {the work, whereby it is returned to its startingpositi'on. 1 These motions are efleeted bye-calm), a eanrgroove, 1'', both rotatedby'the driving-sliaihj and a lever,]c', which is pivoted at l to ear's m, Fig. 2, on a stud swiveled in a-iixed; bearing, a, sot-hat the lever can oscillate'in two planes atright ans gles to each other -viz.,on" theipi'vot-"li nd The lowerend of on the axis of the ears' n'z," the lever is. has a, slot, '0: ceivinga stud, p, on the blockzefiv-and othenslot, q-",Ireceiving a stud, 15', on the slide f'-,,= th'e slot 0' and studp being at .righ'tpangles'wit-h the slot q and stud-rflj rte cahi jf, acting on a roller, '3', on thelevcr kf ,f.g'ives' said lever the movement whichicauses it to more; the slide f block c, and {awl'd in thcldire'ction required -to feed the work-,whilea spring, tfiiFig. 8,.in-' terposcd between a part of the head a and an adjusting-screw,'uflori the. slidef', presses said slide in the opposite -directi-on, keeping the rollers" in-coiitactgwit-h' the cam'j and giving the awl its backwardlateral movement. The cam-groove i, acting-0111a roller, 0, Fig.
. 3, on tlic'leverk', movestheflcvcrliirtl c directions required'toj-give' the blocks and awl d the forward and backward 1 inoyementslengtlnvise ol' the awl. rue work is .grasped while the k nife' is cutting the tongue and during the. forward and backward movements of the needle by a supporting-jawor back gage,
. sole. I l
The jaws w m are ailixeda espcctively,tole-. vers a'f b", which are both pivoted at c" to a w, which is arranged to bear agai nstthe per.
tion of the upper that bears on the edge of the sole, and a penetrating-jaw or pointed dog, w,
arranged to penetrate the upper surface'of the sole between each tongue out by theknife and the point where-the next tongue is cut,the
dog being in advanceof the knife and outside or in front of thedepth-gage, while thebaek gage is behind-the depth-gage and resists the thrust of the jaw :0 against the work. The
jaw or dog, by reason of its form and direction of movement, draws the sole upwardly against the depth-gage when it penetrates the fixed earon the head a and have their upper ends connected by linked" d, Fig. 11, to the lower end of aslidc, c, which is movable in a vertical guide in the head a, and is reciprocated by a cam-groove, f",in the disk t on the driving-shaft, said groove receiving a roller, g", on the slide e. The links dd and levers a" b constitute a lazy-tongs operated by the upward movementof the slide a to move the jaws w 00' toward each ether and cause them a to grasp and hold the work,and by the downward movement of said-slide to separate said jaws and relea'se the work.
In addition to the depth-gage wind jaws 'w' x as work-supporting devices,- we'have .prov vided two automatically-adjusted rests, h i' arranged to bear on theside of the upper at diderent heights, the upper rest, h, being on der and close to the-awl, while the rest 1' is at a lower point. i
The rest h" is a horizontal roller supported by a slide, j, adapted to move horizontally in a guide or way on the head a and normally pressed forward bya spring, k", Figs. 2 and 13, which presses the rest outwardly toward -lOO the operator and permits it to yield asnmy be required by variations in the contour .of the UPDB The lower rest, t", is attached to an arm, Zf,
which is pivoted at m! to an ear aflixed to the head a, and is adapted to. oscillate, so as to give the rest i" a movement in the arc of a circle," whereby said rest is depressed when it is moved backward and raised as it is movedfor ward. This movement adapts the "rest 2' to support the thinner toe portion of the shoe, as shown .in Fig. 16, -as well as the side porti'ons, as'shown in Fig. 15. The levcrl,.sup-
porting the rest i, is connectedby a link, 0'',
with a slide, p",fwhich is. parallel with the slide j, and, like the latter, is adapted to slide horizontally in a guide or way, and is pressed forward by a spring, a", whereby the rest 1'" is normally held in the position shownii n Figs. 1, 2,'and 13, and is permitted to more backwardly and downwardly from said position, as shown in Figs. 15 and 16.
An important part of our invention is the IIO provision'of means for automatically locking the restsh i" in any position they may assume, and causing them to act as rigid sup caused by the thread-pulling rotation of the tension wheel after the slack has been entirely taken up, the operator pulling off the thread in preparing thejtnachine for opcrationto remove any thread on which the wax has dried orhardened. flhe sleeve 29 base flange, 3 5, faced with 'a-washer, 36, of felt orjother hie,
tional material, against which o'neside of the] tension-wheel bears.' The-gear 3 -t is connected tothe sleeve 29 by a key, 37, whlchcanses the sleeve and gear to rotate together. but permits the gear to move lengthwise of the sleeve. The gear is pressed by a'sprihg, 38, toward the tension-wheel, and a frictional washer, 39, is interposed between the gear and wheel. The-wheel is thus adapted to rotate independently of the gcar,a nd'while the spring-pressed,
gear and the frictional washers prevent such independent rotation during the regnlar'operation of the machine they permit; it when unusual strain is exerted on the thread, as by the operator pullingit from the wheel.
Operation: The'feed-awl being projected and the restsh" i nnlo'ckedand free to yield, the
operator places the shoe'in position for. the
stitching operation, first movingthe depth gage outwardlyby means of. the lever b and keeping the bottom of the-sole against depthgage, pressing the shoeinwardlyagainst the aw], so that the latter penetrates-theupper.
and the edge of the sole. The .awl is at this time about at the centerof its feeding movement from right to left, and upon-the starting of the machine the an] completes its feeding move-- ment, carrying the work to the left and completing the feed movement. The jaws to a then approach each other, the penetrating jaw w entering the outer surface of the sole a'littie to the right'of the .awland pressing the work against the supporting jaw to, and at the same time drawing thework upwardly against the depth gage. The worlds now held jointly by the jaws to a" and the awld. The rests h" i'are locked and made rigid by the described lockingdevices just before the knife commences to cut and remain locked during the entire OpQlnhlOll of cutting the tongue,
drawing the loop ofthread through the work,
casting off the loop, and taking it up to interlock it with the tongue, said supports being released and made yielding only while the work is being fed. so that they conform to all the variations in-the cross-section of the lasted shoe while the latter is being fed, and are immediatelylocked in each position they assume,
and therefore constitute a'firm supportfor the eaazee is enteri ngfthe stock the loopcr swings down to bringthe thread under theneodle, and at the same time the nwl, which has now entirely withdrawn fr onrthe' work, tnovcs laterally to" tance equal tot-he lengthof one stitch from the needle. The heedle then moves back,
the upper and sole the cau'132-movesthe lever 30 and the tension-wheel 28 in the direction in dictated by the arrows in Fig. 17, thus relieving the thread of tension. The intermission of the tension thus effected lasts until the barb of the needlehas drawn the thread through the work, and by relieving the strain on the needle during this part of its work greatly diminishes the liability of breaking the thread.
After the barb of the needle has emerged with 4 the loop from the work the tension-wheel is rotated in the opposite direction sufficientlyto exert a tension on the thread 'dnriug' tlie latter part of the operation of drawing out the loop. This tension tightens the thread on the outside 'ofthe upperbetween the last stitch and the'onc being-formed? After the loop has heenyentirely drawn back the tension on' the thread isreleased. Whilethe needleis draw-- ing out the loop-the spreader is moved forward under the needle. When theloop is entirely drawn, the spreader is. depressed and bears upon the sole, the point of the spreader bearing'onthe-root or base of the tongue last formed. This downward movement of the spreader causes the pinion 23 of the cast-olI bar to move over vthe rack and be rotated by said rack, this movementswinging the cast-off across the point of the needle and causing it drawing troo r thread through the work. i
Whiletheneedle is drawi iig the thread through ICO to bear on the loop. J nst as the cast-oft" moves below the needle the latter moves slightly forward to release the loop, which is then depressed and separated from the needle by the continued downward, ,movement ot' the casto-fi'. After the casting off of the loop the tension wheel is rotated to tighten the stitch over the tongue, the loop spreader remaining on the tongue during this operation in position to cause thcloop to slip oil from its point at the extreme base of the tongue, so that there is no possibility of the loop being laid 'suftlciently near the free end of the tongue to-make it liable to slip off from the tongue.
It will be observed that tension is exerted on the thread, first, to tighten thatpart which lies atthe outside of the upper, and, secondly,
to tight-en the loop across-the tongue on the surface of the sole, so that all parts of the loops or stitches are drawn tight and a. close' union between the upper and sole is effected. V
the, StitchI- interlockings otthe thread-loops with the tongues are at uniform distances t barb of the needle when-the latter is projecting ports for the upper during the operation of cutting the tongues in the sole, and of drawing the loops of thread and interlocking them 8", formed on it.
with said tongues. The rests are thus looked just after the work is fed by the aw], and remain locked until just before the next feed movement, when they are unlocked and allowed to conform to the shape of the portion of the upper presented to them by the feed movement.
The mechanism employedfor locking and releasing the rests h t' may be variously moditied. The mechanism here shown is as follows: Figs. 2, 13, and 14 represent a bolt, q", affixed to the head and located between the slides j" p, which carry the rests.
threaded portion is a nut, 1"", having an arm, Said arm is connected by a link, it, with one end of a lever, a, which is pivoted at v to the head a, and has at its opposite end a roller which is held by a spring,
- w", Fig. 2, against a cam, v, on the drivingslides j" p" and their rests, and when turned shaft, said-lever being oscillated by the cam and spring and turning the nut first in one direction and then in the other onthe fixed bolt q". Between the nut r and the slides j" p" is interposed a clamp, 3, made tubular at one end to bear against the inner end of the nutr", and provided at its other end with two clamping-faces, 4 4, formed to bear against the outer surfaces of the slides j p. outer surfaces of the slides are preferably milled or corrugated, so that when the clamp is forced against the slides by the rotation of the nut it will firmly lock said slides. It will be seen that when the nut r" is turned in one direction it will cause the clamp 3 to lock the in the opposite direction will release said slides. Aspring,s, may be employed to sepa-; rate the clamp from the slides when the nut releases the clamp.
5 represents the looper arm (best seen-in Fig. 17) which places the thread across the through the stock. Said arm is attached to the looper-bar 6, which isjournaled in a hearing inthe head a, and is oscillated in said bearing by a sleeve, 7, which has a curved slot, 8, Fig. 20, receiving a stud on said bar.v Said sleeve is reciprocatcdon the looper-bar bya lever, 9, Fig. 17, pivotedat 10 to the head a, and connected at one end to the sleeve 7 and at the other 'end to the awl-carrying ba're. The movcmentsof said bar oscillate the lever hand cause the latter to reciprocate the sleeve 7, the slot of which, acting on the stud ofthe looperbur, rocks the latter at the proper times.
12 represents .the loop-spreader, which enters the loop drawn out by the needle preparatory to the operation of casting oil the loop from the needle. Said loop spreader is a curved arm rigidly attached to a slide, 13,
which is adapted to move in a guide-lever,14.
Said lever is pivoted at 15 to a fixed car on The belt is screw-Q threaded at its outer portion, and on said Said faces and the cillatethe loop spreader toward and from the work. The loop-spreader has also an upwardand-downward movement imparted by a slide,
18, adapted to move vertically in a guide in the head a, a cam-groove, 19, Fig. 22, receiving a roll on the slide 18, and a link, 20, connecting the slide 18 with the loop-spreadercarrying slide 13.
The cast-01f 21 is a bent-wire arm attached to a rock-shaft, 22, which is journaled in bearings on the side of the spreader 12, and has on its upper end a pinion, 23,\vhich meshes with a rack, 24.' Said rack is fitted to'slide in a guide, 25, attached to the loop-spreader 12, and is connected by a link, 26, with a fixed ear,27,on thehcad a. The upward anddownward movementsof the loop-spreader cause the rack 24, which does not move up anddown, to rotate or rock the pinion 23 and thus oscillate the cast-ofi.
The successive movements of the loopspreader and castoft' are as follows: During the latter part of the outward or backward movement of the needle the loop-spreader is swung forward under the needle, as shown in Fig; 26, and then is somewhat depressed, as shown in Fig. 27, by the downward movement of the slide 13. is moved slightly forward to release the loop, and then the'cast-oti' is swung downwardly upon the released loop and presses it-downwardly from the needle, as, shown in Fig. 28.
At the same time theueedle' The point of the spreader now stands directly over the/tongue on the sole,and whileit stands in this position the take-up draws in the loop, which is caused by the point of the spreader to tighten over the base of the tongue, Fig. 29. The spreader then swings back out of the way before the next forward movement of the knife.
28 represents a grooved tension wheel,whieh is adapted to rotate on a sleeve, 29,- Fig. 18, which is mounted on a stud affixed to the head. Said wheel is rotated-alternately in opposite directions by means of a lever, 30,- pivoted at 31 to a fixed car on the h'eada, a cam-groove, 32, in a disk on the driving-shaft, said groove receiving a roller on one end of said lever and site end of the lever '30, and a gear, 34, connected with the tension-wheel and meshing with said rack. The cam is timed to oscillate the lever 30 and cause the rackand gear to rotale the tension wheel to loosen the thread while it, is being drawn through the material by the needle and tighten it to take up the stitches, as hereinafter explained.
The tension-wheel is adapted to rotate independently of the gear, and is conncctedthere with by friction devices, which, while causing the wheel to rotate with the gear in theoperation of the machine, when the thread is not under unusual strain; permits it to be indepeudently rotated by strain on the thread jection is obviated by our iinpro-vcd outside feed,
The depth gage is arranged to support the upper surface of the sole directly over the point where the awl cnters thesole preparatory to feeding it. The lateral extension of said gage enables it to firmly support the shoe and prevent it from tipping lengthwise, so
' that each awl-holc is made at a uniform depth.
The capability of the depthgage to move outwardly enables the projecting edge of the upper to be rcadily'placed behind the depthgage in presenting the shoe to the machine.
The movement of the aw] effected by the spring i, whereby the awl is carried backwardl'y preparatory to entering the shoe to feed the same, is arrested by a wedge, 40, affixed to a slide, 41, which is vertically movable in guides in the head a. Said wedge is connected by a rod, 42, with a treadle, (notshown,) whereby it may be depressed to arrest the describedmovement of the am at any desired point, and thereby regulate the length of the stitches or the distance between the tongues.
In our pending application above referred to several of the combinations which we elect to claim in this application ar'eshown and described. t
The tongue cutting knife may be arranged to act at a distance from the point where the needle acts without departing from the spirit of our invention as herein claimed.
We claimy 1,. The combination of suitable work-supporting devices, a tongue-cutting knife, mechanism to move said knife to and from a sole supported by said work-support, a feeding deare engaged with the tongues out by the knife,
vice to feed the work intermittingly, a curved oscillating needlearranged to enter the incisions made by the tonguecutting knife, a looper, a cast-oil, and tension devices co-oper- 'ating with said needle,wherebyloops of thread as set forth.
2.'The combination of the tongue forming knife, mechanism to oscillate it, the loopforming mechanism, the awl arranged to penetrate the outer surface of the shoe, and mechanism for operating the awl, whereby thelattcr is moved first to penetrate the work, then to feed-the same, then to withdraw from the work, and finally to return to itsstarting 'po sition, as set forth.
3. The combination of the tongue-forming knife, mechanism to oscillate it, the loop-forming mechanism, the awl arranged to penetrate the outer surface of the shoe, and mechanism to operate said awl, whereby it is caused to feed the work, and the deptlrgage, whereby the depth of penetration of the awl and knife is determined, as set forth.
4. The combination of the tongue-forming knife, mechanism to 0scillateit,thc loop-forming mechanism, thedepth-gage adapted to slide horizontally, aspring whereby said gageis normally rctraetcd,and a handle whereby said gage may be moved forward to admit the edge of the upper behind it, as set forth.
5. Theflcombination of the tongue-forming knife, mechanism to oscillate it,the loop-forming mechanism, a normally-yielding rest, as i", for the side of the upper, and means, substantiall y as described, whereby said rest is locked and made rigid during the tongue and loop forming operations, as set forth.
6. The combination of the tongue-forming knife, mechanism to oscillate it, mechanism,
substantially as described,for forming loops of thread and interlocking them with the tongues formed by the knife, a normallyyielding spring-projected rest, h", arranged to bear on the upper near the solo, a second normallyyielding spring-projected .rest, as i, arranged to bear onthe upper below the other rest, a pivoted lever supporting the rest, whereby the latteris raised and lowered when it is moved forwardiand back, and means, substantially as described, whereby said rests are lockedand made rigid during the tongue and loop forming operations, as set forth.
7. The combination of .the tongue-cutting knife, mechanism to oscillateit, the loop-forming and interlocking mechanism, the perforating and work-feeding awl and its operativev mechanism, the jaws a" w, adapted the one to penetrate the surface of ,thesole and the other tosupport the side of the upper, and mechanism to operate said jaws, substantially as described. 1 i
8. The combination, with the feeding mechauism aud the complementary stitch-forming mechanism, of the loop-spreader, the slide 13, supporting the same, the lever 14, can rying said slide, mechanism for oscillating said lever, mechanism for-reciprocating theits slide independently, the east-off barjournaled in bearings on the loopspreaderand provided with apinion at one end and a'eastoff, 21, at" the other end, a rack, 2t, adapted to slide in a guide on the loop'spreader, and a connection, 26, between said rack and'a fixed support whereby the rack is caused to oscillate the castoff when the loop-spreader is .raised and lowered, as set forth.
-9. The combination, with the tongue-forming and stitch formingmechanisms, of the diapth-gagearranged to bear on the outer surface of the sole, and a pointed dog or' jaw and mechanism for oscillating said dog,whereby it is caused to hold the'sole against the depth-gage, as set forth.
formed and arranged to penetrate said surface,
10. The'combination, withthetdngue-fofih namesto thisfspecification, inthe p resence'qii 1Q -i-ng -and'stitchforming meehanisms'; of. the two snbscnbingwitnesses, thisfithdayef Aupointed doghr jaw formed and arranged to gush, A. D; 1887.
penetrate the outer surface of the sole, mech Y PETER A COUPAI'L 5 anishi to escilla'te said dog whereby ibis caused JOSEPH COUPAH tfo enter the so1e,-a nd a support; as w, to hold 111% WQIk agame bthe pressure of the dog when' Witnesses: it is penetrating the sole, as set fort-11. C. F. BROWN, ,In testimony whereof we have signedQur W'. C. RAMSAY
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874616A (en) * 1995-03-06 1999-02-23 Minnesota Mining And Manufacturing Company Preparation of bis (fluoroalkylenesulfonyl) imides and (fluoroalkysulfony) (fluorosulfonyl) imides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874616A (en) * 1995-03-06 1999-02-23 Minnesota Mining And Manufacturing Company Preparation of bis (fluoroalkylenesulfonyl) imides and (fluoroalkysulfony) (fluorosulfonyl) imides

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