US1094838A - Welt-sewing machine. - Google Patents

Description

J. L. DOW.

WELT SEWING MACHINE.

APPLICATION FILED MAY 25, 1910 1 94 8 Patented Apr 28, 1914.

3 SHEETSSHEBT 1.

5 jg .ZizaewMr J. L. DOW.

WELT SEWING MACHINE. APPLICATLON FI LBD MAY 25, 1910.

Patented Apru 28, 1914.

3 SHEETS-SHEET 2.

LT. L. DOW.

WELT SEWING MACHINE. APPLICATION FILED MAY 25, 1910.

Patented Apr, 28, 1914.

3 SHEETS-SHEET 3.

. use the same.

A To all whom c't'mag-cqnrh:

UNI TED .sjsaains Joim L. DOW, or MELROSE HIGHLANDS M SSACH SETTS; ASSYIGNOIR T0 UNITED SHOE MACHINERY COMPANYfiO'ZF PArEnson, NEW JERSEY, .e-l conronn'rIonor NEW JERSEY.

" Application-filed may 25,

Be it. known that' I,-JonN L... Dow, a citizen of the United -States,. residing 'at MelroseHighlands, inthe county of Middle, sexiand State of Massachusetts, have invented certain 'new anCl useful. Improvements in"Weltgsewingf'hlachines 'and 1' do hei'eby. declare the following to" be a full,

clear, and exact descriptiolrof the invention, such as will" enable others 'SklllGd in the art to. which it appertains to make and relates to welt sewing inachines, and more particularly to means for. holding, the end ,of'the welt while it is being attached to the upper and insole at the beginnin of the sewing operation.-

l The ob ect of the invention. is to provide The invention novel and improvedweltholding means. by which the welt may be held during the for-' mationof any desired number of stitches at the beginning of the. sewing-operation.v To this end one feature of the invention con templates the provision in a welt sewing machine of a welt holding device which engages and holds the end of the welt atthe beginningnof'thefsewing operation, and which may be thrown out of operation at the will of the operator. With this construction' the welt holding device continues to operate upon and hold the welt until it is thrown out of operation or rendered inactive by the operator, so. .that the welt may be securely united with the upper and insolebefore'the welt-holder ceases to act. 'Any suitable form of welt holding means and actuating mechanism, which will enable the-- -welt holding device to be thrown out of operation at'the will of theoperator, maybe employed. In order that the welt holder may eontinue"to act upon the 'welt without putting additional strain or work upon the feeding devices which engage the shoe, it preferred to sooperate the welt holding device that it' intermittently engages the welt and is-jmovrd with the welt during the feed of the shoe. With this construction the welt holding device assists in feeding the shoe, and may-also act as a presser foot for holding the welt against the shoe during the loop drawing stroke of the needle, thus adding to the tightness of the seam.

In addition to the features above outlined,- the invention includes certain further features andcombinations of parts which will Specification of Letters Patent. Patented I WELT-SEWING MACHINE.

1910. serial-No; 563,252.

be hereinafterexpla'ined andreferrcd to in "apparent to those skilled in the art.

In the drawings the invention is illusits ap 'ilication to this machine, but may be incorporated in machines in which itis to ,be embodied. I The various features of the invention will he understood from an inspection of the-accompanylng drawings, and the following side elevation of a Goodyear welt and turn mentembodying the-features of the present invention in their preferred forms: Fig. 2 is asectionnl plan view showing the construction of the welt holding,attachment; Fig 3 is a, plan .view shmving'the ram slide for throwing the welt holderinto operation; gig. 4 is a sectional view on line Fig. 3; Fig.5 a detail plan-view showing the .welt holding finger'and the front end. of the carrier on which it ismounted; Fig. 6 is a side elevation of the parts shown in Fig. 5: Fig. 7 is a planet the welt holding mocha 'nism, showing the parts with the welt holding finger in engagement with the end of the welt: Fig. 8 is a similar view-slimving the position of the parts-after the feed; of the'shoe has taken place: Fig. 9 is a-sec- In the drawings. 1 indicates the hack-gage dleyi the looper. 5 the trod-"point. and 6 the thread arm.theseparls being construct-- operated/by the samemechanisms. as the corresponding parts of-ihefthmdyenr welt andtnrn 'machinewhich is disclosed in the patent to French and MeyerNo. 1-12.701. October-8,1889. H

The meansfor engaging the end of the welt which projects through the welt gnide. 'and holding it against the shoe an the be ginning of the sewing operation, comprises a welt. holding finger 7 secured at the from end of a slide 8 which is in turn mounted the claims, the advantages of which 'will be tra't ed as embodied in the well-known Goodyear -\\-'elt and turn sewing machine, but itw 1ll .be understood that 1t is notconfined in embodied in attachments for otherforms of .welt sewing machines, or maybe otherwisesewing machine provided with an attach-- tiona'lfview online. 9 4)." Fig. 2; and I ief -10 IS a sectional view on line 10-40. Fig. .3.

ed and arranged innnsame manner, and- Apr. 28, 1914..

detailed description of the construction shown thereim In the drawings Figure '1 is a left-hand or work-support, 2- the welt guide. 3 {he nee- "T the other end of whichis connected with a x welt "holder "slide is held normally in resecured to-a slide 16, and engagesa pin 17 blockla secured'to the carrier arm. The

trac'ted position against the tension ofthe spring 12 by meansof a blockl5 which-is projecting laterally :from the slide 8. I he sli de- 16 -is mounted upon a support-mg .bracket 18, and is retained and ide thereon by, a sorew '19 engaging a 0620 in the slide." The'fslide l6'is held in retracted P O S1- tion by a comparatively heavy spring 21.

The barrier arm 9 is pivoted'at 22 upon an rm 23of the bracket-.18, so that the arm mag swing in the direction of the feed of theworkgf-The armljis held normally in -its rearward or retracted position by a.

spring 24c.

In{ order, that the j welt holding. finger 7 may be moved positively'in the direction of thefeed"when'the shoe is fed, a roll 25 is mounted" in "theiiblock" 14 on-the carrier 9, and is arranged to bebrought into the path of -afcam rib 26 seouredonthe face of the eam-disk 2 7.=. Thecam roll 25 is monnted u'pOn-the-gupperendof a stud 28 which is mountedtoslide in the block 14, and 1s normally-heldin' its lowe position by a'spring '29. "The-"lower end of the1stud28 is arrangedinthe path of alifting cam 30 securedon the slide-16. Whenthestud 28 is in its normal position, the .cam roll 25 is below the {path of the cam rib 26, as indicatedin dotted lines in Fi .1.. Whenthe slide 16 is'dr'awn forward, t e cam 3.0 raises the roll 25 into position to be operated upon by thecam-26.

The1slidej'r16 is actuated through abell crank'lever'31, one arm of which e ges a holejin-the front endof the slide. 16, and

the otherarm of which is connected by a link 32 with a spring plate or treadle 33.

In order-that the welt holding mechanism Y may be thrown into 0 eration in starting the -niachine, the treadle 33 is preferably arranged directly above the'startin treadle 34, and so she edLtha it partia ly'overlaps the treadle. ith t 's construction the operator may shift his foot off of the treadle- 33 without releasing the starting treadle 34.

In Fig. l the parts are shown in position ready for the insertion-of a shoe. When the parts are in this position the'welt guide is retfhcted, and the cam 26 overlies the cam roll 25. When a shoe has been inserteahandj 66 the; operator startgkthe machine, he puts his -inent of the work takes place,

v ward "the thread, and

-weltagainst the shoe, and then the cam rib, 26 asses from above the cam roll 25. The

sli e 16 then moves forward, lifting the cam roll 25 into the path of the cam 26, and also moving the block 15 away from the pin 17 so that the welt holding finger is engaged with the end of the welt, as. shown in Fig. 7

The cam rib and roll thusact to time the enagcment of the welt holder with thewelt. he welt holding finger now actsto'hold the end of the welt againstthe'shpe during the advance strokefl'of the needle,'and during its return loop] drawing stroke. After the needle has drawn theloop throngh the work, the feed of the-shoe takes place. As

the teed point advances to feed the shoe, thecam 26 acts on the roll 25, moving the .carrier arm 9 in the direction of the feed, so that the welt engaging finger7 is positively moved with the shoe during assists indzhe feed of 'the'QW rk. After the feed has taken place, the .cam 26 passes beyond the roll 25, so thatthe cam no longer the feed, and

interferes with thereturn movement of the carrier arm 9. The arm is held at this time against the tension of thespring 24 by the engagement of the welt holding finger 7 with the work. Before the next feeding moveing finger is disengaged from the work, so

the Welt holdthat the carrier arm'9 may return tonormal position,:and then the welt holding finger is reengaged with" the work, preparatory to the next feeding movement, and firmly holds the welt against the shoe during the loop drawing stroke of the needle, and during the next feeding movement of the shoe.

The means shown for disengaging the welt holding finger from the work comprises. an .arm 36 which is pivotally supported upon the rear end of a plate 37 secured to the link 38 through which the thread arm 6 is operated. Thea-rm 36 is held in normal position by a spring 39. When the thread arm is in normal position, .the'arm 36 is in its rearposition, as indicated in, the' drawings, When the welt holder slide 8 moves'forward to engage'thewelt holding finger with I the welt, a pin40on the slide passestothe rear side of the arm36, asindicateiigin Fig:

7. When the" welt"holder moves fforward with the shoe during'the 'feedfthe pin 40 .a'cts-to deflect the arm. 36 against the tension of thefspring 39, as indicated in Fig. 8.' After the needlehas advanced through the work, the threadjarmis. operated to engage the arm 364s moved forwardv the pin 40. The spring 39 immediately re-.

so that its rear endpasses to the front of turns the arm to normal position, so that bodied, what I claim is its rearend lies in frontvof the pin 40. Now when the thread arms is returned to its nor- .m-altposition in'givin up slack thread to the needle while the nee le is drawing a loop of thread through the work, the arm 36, forces the welt holding slide back, thus disengag ing the welt holding finger from the welt.'

The sp'ring24 immediately swings the car,-

rier 9 back into its initial position, as .indi:

cated inFig. 7 This movement of the can rier takes the pin 40 off of the end of the arm- 36, so that the slide 8 is released, and

the spring 12 acts to rengage the welt holding finger with the welt. This cycle of operations is repeated durin' each cycle of operations of the stitch forming mechanism so long as theslide 16 is held in its forwar' 1 position by the operator, and the welt holder. is given'a i-motion movement to intermit'-.

tently engage the welt and move for-- ward with it during the feed of the shoe;

After any desired. number of stitches have been formed the" welt holder .may be.

renderedinactive or thrown outv of operation by releasing'the treadle 33. when this is done the slide '16 returns to normal position, thus retractingthe welt holdingfinger 7, and also allowing the cam roll 25' to move down out of the'path 02f the cam 26. 'While it is preferred to employ the con;

struction and arrangement of .parts shown -a'nd described, it will be understood that this construction and arrangement is not essen-.

tial, and maybe varied and modified without departing from the broader scope of. the

invention.

Havingexplained the nature and ob'ect of the invention, and specifically descr'ied one construction in which it may be .em-

1 1. weltsewing machine, having, in combinat on, stitch-forming mechanism, a welt tion at the willof the operator stopping the machine, substantially as described.

2. A welt sewing machine, ha

in the rear of-the sewing point, and mechanism for 'intermittently engaging the holder with anddis'engaging it from the welt during the sewing operation, substantially as de-- scribed.

3. A welt sewing machine, having, in com-- bination, stitch formin -'mechanism, a welt holder arranged to hol the welt 1n the rear of the sewing point, and mechanism for m- "rig, in com-; bination, stitchforming mechanism, a welt holder arranged to hold the end of the welt "-p'arting a et-motion movement to thewelt holder tointermittently: engage it with the welt and. move it withfthe Q i n s i tial iiasd sc i i'1- 4. A welt sewingmachine, aving,'in com= hoe during the "binajtio n, .st tch'iforming mechanism, 'jai welt holderarranged to hold the; wucanomeve w th .59s 1 ng..the. read, and e anism; :io'r intermittentl engaging the holder Iwith' and disengagin f ng the sew ngl pe atiq a d fiie ns e dering. the welt. holder inactiveafter the end of the. fifl ltg hais been, attached to f the shoe, absent,.,na f e crib a. ,1

5'. A, welt s win machmqha'vingpin combination," stitch forming mechanism,"'a' welt holder, mechanism for 'throwing"thewelt holder into'op'eration in throwing the drivromfthe welt durout ofopjeration g'a't'the. will of the operator,

mechanismgai welt ea; means under .fw thoutstogfiinglthe. machine, substantially aaf t ihga r the control of the" operatonjfor throwing) he} welt-i homes.iatap qaaon;za a me hani m 3 'io jthe cyclerdf operations of ,thlStitchforfiiq' ing mechanism;.suhsta it all a described;

7.1 A weltsewing -ntachneg avingyin com-j binatioii', stitch l'formmg miechanism, agwelt Y d ior 1 1 h Welt, mechanism-for "thr wingithe' w lt. heldeni nmf ti a n.

starting the I machine-g and anism g for automatically timing the engagement off the v weltholder with the welt with'relation" the .cycle of operations of the stitehgform ing mechanism, substantially as described.

8. A welt sewing machine, having, in combination, stitch-forming. mechanism, a wel ideonone side of the needle, a welt holder or holding the welt'on the opposite side oi the; needle, and mechanism for imparting-' feed and-return movements to the f welt holder and for intermittently engagin 'it-' with thework, substantially as describe 9. A welt sewing machine, having, in"com mechanism, a welt-*- bination, stitch forming holder arranged to hol the end of the welt in the rearof the's'ewing point and to,mov'e-" with the shoe during the feed and 'mechani'sm acting automatically to. disengage-the holder from the welt, return it to initial position,'andreenga e it"with the-welt, subr' stantially as-descri ed. 4

10. A welt 'sewmg.;mach1ne, having in;

combination,- stitch forming. mechanism, a

welt-holder for holding the'welt in the-rearf' of the sewing point, mechanism for actu;

ating the welt holder during the sewing independently of its engagement with the shoe, means for throwing the. welt holdef -into operatiom-randjmeans under the control of "the operator forretaining the welt holder in operatiom, substantially. as described. v 11. 'A -'?weltsewing machine,v having, in combination',- a welt holder, a carrier for-the welt holdermovable' in the direction of the feed of'the shoe,'ajcam for actuatingthe carcombination, a welt holder carrier movable,-

in the direction of the feed of the shoe, a

' welt holder mounted on the carrier to move toward and from the shoe,- a cam for actu.

' ating the carrier in the direction of the feed,

and a cam rollon the carrier movable into and out of the path of the cam, substantially as described.

combination, a welt holder carrier mounted a welt holder mounted on the carrier tomove toward and from-the shoe, 2. spring for adfor holdingthe-welt --holder normally reoarrier and a cam on the controller-slide FREDERICK L. EnMoNns,

5 JArrEsR. I'IQDDER.

Copies ot thispatent may be obtained for five cents each, by addressing thef Commissioner of Patents,

Washington, D. 0.

13. A "we sewing "mabhine, haying, in

jeii movlng the cam roll. into the path of the for movement inthedirection-of the feed,

2s vancitngthe welt holder,ia controller slide tracted,- a cam for actuating-the holder in the direction'of the feed, a. cam roll on the v

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