US1466341A - Welt-guide and stitch-indenting mechanism - Google Patents

Description

\ J. H. REED WELT GUIDE AND STITCH INDENTING MECHANISM- Filed Sept. 9, 1920 8 INVENTOR dameJ H. Rec 01 B/ZW , ATTORNEY ?atented Aug. 28, 1923.

v barren stares PATENTOFFIQE;

IEANUFACTUBING"COMPANY, OF ELIZ Y 7 NEW JERSEY.

ABETH, NEW JERSEY, .a-conroianrrou or WELT-GUIDE AND sTIToH IuDEutrINe MECHANISM.

A liance filed September 9, 1920. Serial 1%. 409,189. v

To all whomz't may concern:

Be it known that I, James H. REED, a

citizen of the United States, residing at 'Swampscott, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Welt- Guide and Stitch-indenting Mechanism, of

which the following isa specification, reference being had therein to the accompanying drawings.

In making the so-called stitch down shoes, it has been customary to attach a welt strip in the crease between the upper and the sole, this strip and the sole holding between them the outwardly turned margin "of the shoe upper. This strip is sewed in place through the upper margin and the sole, and

r not Only serves to strengthen the shoe, but

also to improve its appearance. Some difficulty has been experienced in properly placing'th'e welt in this position, the welt tending to spring outwardly from the shoe upper leaving a space permitting the loc g-- ment of dirt and foreign matter, and de tracting from the appearance of the shoe.

' This invention provides means which may be attached to a straight needle sewing machine, and by which the welt may be fed progressively into position closely engaging 7 the upper and be stitched in place.

A further feature of this invention relates to improved" means for indenting the welt step by step between the stitches to add to the appearance of the finished shoe,

this means consisting'of an indenting tool.

carried by the presser foot and slidable laterally of. the line vof feed into and out of the path of the needle.

For a more complete understanding of this invention. togetherwith other objects and advantageous. details and combination of parts, reference maybe had to the ac- 'companying. drawings in which i Fig. 1, is a fragmentary elevation, partly broken away, of the head of a sewing'machine equipped with this invention. Fig. 2, is] a side elevation, with parts in section, of the forward portion of the machine. r l I Y Fig.3, is a detail of the actuating mechanism.

V 'Fig. 4', is an elevation of a cam.

Fig. 5, is an elevation of the partssho-wn in Fig. 2, and i indenting tool Fig. 6, is a plan of the same parts showlng a portlon of the shoe in position to be sewed.

head having an upwardly extending hollow standard in which is journaled the main operating shaft 1, and a lateral hollow work-supporting arm C forming ahousing A represents a portion of the machine 3 are madefast to the shaft nuns shaft 1 being shown as provided with acrank at 4 for actuation of a connecting rod 5 "projecting toward the base of the machine, and by which the shuttle mechanism, not shown, is actuated. Adjacent the crank 4, and for a purpose to be later described, a cam 6 is 'fixed to the shaft 1, this cam being preferably made in halves screwed together in position on the shaft as shown in Fig. 4, one of the screws being indicated in dotted line at 7. Cam 6 is" in the form of a flat disc with a segmental cam surface vmember 8 screwed thereto at '9 and9 ,1as shown in Fig. 4, member 8 having inclined ends 10 and 10 and a flat intermediateportion. As shown inFigs. 1V and 3, a vertically extending shaft 11 is journaled in lugs extending from the standard B, this shaft carrying at its upper'end 'a crank arm 12 terminating in a cam roll 13 positioned tobe engaged by "the cam segment 8. Between the supporting lugs in which shaft 11 is journaled, is mounted thereon a torsion coiled spring 14, one end of which is made fast to one of the journal lugs and the other end made fast to a collar 15 fixed to shaft 11, this spring serving to urge the roll'13 into engagement with the cam 6. The lower end of shaftll has fixed thereto an arm 16 terminating in a ball 17. The ball 17 bears in a two ball socket 18 fixed to alrod 19 which extends outwardly through a slot 20 in the machine head above the arm C r 1 At 21 in Figs. 2 and 5. is shown a recipropart ii eating needle bar' carrying a straight eye needle 22, this needle reciprocating through a needle guide 23. These parts; are mounted anddriven in the usual mannerby which piercing and retracting movement through the workand lateral motionjwhile in the "work: to feed the same," are. returnmotion while out of the workis given the needle.

At 25 is shown the pressefoot having an elongated slot 26 therein, through which the needle moves both in piercing and retractin from the work and also in feedin a I the same. Slot 2 6 terminates at one end in a portion 27 opening laterally thereof. Presser foot 25 is carried by the usual presser foot bar 28 and is actuated in the as they are old and well known in the art,.

and may be of any suitable or usual description.

The arm C carries a work plate D. Between the lugs 29 thereof is journaled a pin 30. A sleeve 31 is carried by the pin 30 between the lugs 29, and carries fixed thereto, a yoke member 32. A torsion spring 33 surrounds the extremity of the rod 30, outwardly of the bearing 29, being fixed at its inner end thereto and at its outer end to a head 34 of the pin 30, this spring tending to rotate the pin 80 in position to hold the outer end of the yoke 32 depressed. Yoke 32 is split at its rearwardcnd and has lugs 35 and 37 integral with the opposite split portions, through which a tightening screw 36 passes and by which the sleeve is clamped to the pin 30. The outer end of the yoke 32 "is perforated at 38 for the reception of the shank 39 of a welt guide 40, shank 39 being 7 held in position by means of a screw 41. V The guide 40 has a welt guide slot .42 extending downwardly and outwardly toward the needle by which a welt shown at WV fed therethrough will be pushed outwardly from the work-supporting arm C and into close engagement with the crease between the upper and sole of the shoe being sewed, as shown in Fig. 6.

The presser foot 25 has a rearwardly extending perforated lug 43 in which is slidably mounted a guide pin 44. Extending in spaced parallel relation to pin 44 is an indenting member 45 slidably mounted in a groove 46 in the lower face of the presser foot in position to intersect the path of the needle 22 during itswork piercing stroke. The rear end of the indenting memher or tool 45 has an upwardly extending portion 47 by which it-is fixed to a lug 48 integral with a block 49'to which the guide pin 44 is'fast. The rear end of block 49 is bifurcated for a pivotal reception of 60' an ear carried by a. block 50 in which is made fast the forward end of the rod 19, above mentioned.

, The operation of this mechanism is as follows;

lasted shoe ispresented in the position shown in F g. 6 to the sewing instrumentali- The presser foot is'in position above the wel't:s0 that the welt, upper marg-in, and

sole form the material to be stitch-ed;- On actuation of' the machine, the sew ng 'instrumen'ta'litles function in their usual man her to sew thesethree parts of the work together, the inclined position of the welt guide with relation to the line of feed crowding the welt closely into the crease between the upper and the sole. Afterthe presser foot is raised to allow for the feed of the work, the cam segmentS rides from contact with roll 13, allowing the spring 14 to turn shaft 11, andpush rod 19 outwardly to project the indenting tool 45 across the needle path to substantially the full width of the welt. The clamping of the presser foot on the work during the retraction of the needle to the next stitch causes a lateral indentation to be made in the surface of the welt by the tool at the point where the needle will next descend. Before the needle reaches this point on its next piercing stroke, segment Shas again engaged roll 13 and rocked shaft 11 to retract the tool from the needle path. This action of the tool causes the welt to be indented between the stitches as shown at afin Fig. 6, each inden- Y 7 ing-tool effective to engage and indent the needle-entering face of the welt at a point coincident with the subsequent penetration of the welt by said needle, and means for retracting said welt indenting-tool from indenting position out of the path of said needle. 2 J

2 In a sewing machine, sewing instrumentalities, a welt guide forward of said inst-rumentalities in the line of feed in position to crowd the welt into the crease between the upper and sole of a shoe being sewed, a press'er foot, and means carried by said presser foot and arranged to indent ,the upper face of saidwelt one stitch length in advance of the last complete stitch. g

3. In a sewing machine having a work support and a needle movable laterally to feed the work, a presser footthroughwhich the needle passes, and an indenting tool movably mounted on' said presser foot in line with the start of feed of said needle and support, and means for retracting said toolv from thepath of the needle prior to the needle reaching that position.

4. In a sewin machine a 'work-su aort Y sewing instrumentalities, a presser foot, and

an indenting tool slidably carried by said presser foot and confined against movement relatively to the presser foot toward and from the work-support.

5. In a sewlng machme, sewing mstrumcntalities, feeding mechanism, a presser foot, an indenting tool sustained in position to indent the Work one stitch length in advance of the last complete stitch, and means for reciprocating said tool transversely of the direction of feed. 6. In a sewing machine comprising sewing instrumentalities including a needle movable laterally to feed the work, a presser foot adjacent the needle and provided with a transverse slideway rigidly con nected therewith, and a drive shaft for actuating said instrumentalities, the combination of a stitch indenting tool mounted in the slideway of said presser foot, and means actuated by said shaft for sliding said tool.

7. In a sewing machine comprising sewing instrumentalities including a needle movable laterally to feed the Work, a pre-sser foot adjacent the needle and provided With a transverse slideway, and a drive shaft for actuating said instrumentalities, the combination of a stitch indenting tool mounted in the slideway of said presser foot and arranged to be projected and retracted across the path of said needle, a cam on saidshaft, and connections from said cam to said tool for projecting and retracting said tool;

8. In a sewing ma'chine,the combination with stitch-forming mechanism including a reciprocatory needle, of a stitch-indenting tool having a welt-engaging path of movement coincident with the path of the subsequent work-penetrating movement of said needle, and means for actuating said indenting-tool to form spaced indentations in the work. 1

9. In a sewing machine, the combination with stitch-forming mechanism including a reciprocatory needle, 01": a welt-guide positioned to present a welt to the stitch-forming mechanism, an indenting tool arranged to engage the upper face of the'work at a point coincident with the subsequent penetration of the work by the needle, and means for retracting said indenting tool in a direction substantially transverse to the lead of the welt and the path of reciprocation of the needle. g

In testimony whereof Ivhave signed my name to this specification.

JAMES H. REED.

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