US1154554A - Inseam shoe-sewing machine. - Google Patents

Description

F. H. WARREN.

INSEAM SHOE SEWING MACHINE.

APPLICATION FILED JAN. 9. 1913.

1,154,554, PatentedSept. 21, 1915.

'l'giiness'esv jnvenorr gf' f in, X 2% w M v @24 MASSACHUSETTS, ASSIGNOR TO UNITED SHOE OF PATERSON, NEW JERSEY, A CORPORATION OF NEW INSEAIVI SHOE-SEVVING MACHINE.

Application filed January 9, 1913.

To all 'uJ/m-m 1'2. may concern Be it known that I, FRANK H. XVALRLN, a citizen of the United States, residing at Swampscott, in the county of Essex and State of lilassachusetts, have invented certain new and useful Imprm ements in Inseam Shoe-Sewing Machines; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to inseam shoe sewing machines, and more particularly to a shoe sewing machine provided with tack pulling devices.

When a welt or a turn shoe is lasted, the upper is held by means of tacks which are driven through the edge of the upper and through the sole into a wooden last. After the shoe is lasted, it is presented to a sewing machine which sews a seam o't stitches uniting the upper to the sole. During the sewing operation, it frequently happens that the needle strikes a tack and breaks. It is, therefore, desirable that the tacks be pulled or lifted out of the path of the needle, or else pulled enough to loosen them so that they are deflected to one side by the needle in case they are struck by the needle, and do not otter suliicient resistance to break it.

W'ith the object, therefore, of pulling the tacks so that the sewing machine needle will not be broken by the tacks, the present invention contemplates an inseam shoe sewing machine which is provided with a tack puller which operates to pull the tacks which are in the path of the needle.

The present invention in one of its narrower aspects relates to a tack puller which is mounted to move with the back gage slide of the shoe sewing machine known to the trade as the Goodyear welt and turn machine, so that this machine may operate to pull the tacks from the shoes which are sewed by it.

In the drawings, which illustrate the preferred embodiment of the present invention, Figure 1 is a side view of part of a Goodyear welt and turn machine showing the needle, the feed point, a section of a. lasted shoe, and the tack pulling mechanism; and Fig. 2 is a detail view of the tack pulling mechanism.

Specification of Letters Patent.

Patented Sept. 21, 1915. Serial No. 740,945.

turn shoes and is therefore illustrated in I connection with the Goodyear welt and turn machine when the back gage slide is provided with the back gage which is used for turnwork. The Goodyear welt and turn machine to which the present invention is applied, is illustrated with substantial accuracy in the patent to French and Meyer, No. 412,704, dated October 8, 1889. In this machine, the thread is drawn through the work by a curved hook needle 1 which penetrates the upper 2 and the between substance 3 of the sole 4 of the lasted shoe, and sews av seam of chain stitches uniting the upper to the sole. The work is fed by means of a feed point or awl' while the needle is out of the work. During the feed, the back gage slide 10 is retracted to permit the shoe to be more easily fed; After the work is fed and before the needl 2 again enters the work, the back gage slide is spring-pressed forwardly to bring the back gage 11 against the shoe. Then the needle 1 descends and penetrates the work.

In the illustrated embodiment of the present invention, a tack puller or tack pulling tool 15 is pivotally mounted, by means of a screw stud. 16, upon a plate 17 which is mounted upon the right hand side of the back gage 1'1. "lhe plate 17 has a slot in which is engaged a. feather 18 on the side of the back gage. A longitudinal adjustment between the tack puller 15 and the back gage is secured by means of the elongated slot 1 in the plate 17 through which is received the screw :20 which secures the plate 17 to the back gage. The end of the tack pulling tool 15 has a. tack engaging claw 25 which is pushed under the heads of the lasting tacks and pulls them. When the back gage 11 and its slide 10 move forwardly during the cycle of stitch forming operations, the claw 25 comes in contact with the lasting tacks 26 which may be in its path of movement. The continued forward movement of the slide 10, which takes place before the back gage 11 is brought against the work, causes the inclined lower face 27 of the tack pulling tool 15 to ride up and over the shoe and act after the manner of a cam to deflect the tack pulling tool 15 and cause it to turn about its fulcrum 16 and raise its forward end to hit the tack which is engaged by the claw 35; The movement of the claw 25 ai tcr it engages the head oi'?- the tack is both forward and upward, so that it both bends the tack away from the needle and loosens it. l t the tacks are entirely withdrawn from the shoe they are. not only scattered about the sewing machine but are also liable to become lodged in the channel of the sole and to remain there when the shoe is completed. 'lherei'ore, the tack puller is preferably adjusted so that the tacks are only partially withdrawn from the shoe. The partially witlulra'wn tacks are suiiiciently pulled or loosened so that they present no obstacle to the needle. The tack pulling claw 25 is located at the right of the back gage 11 (as viewed from the front of the machine) and at the right of the needle 1. The shoe is fed from right to left and consequently the tack pulling tool is located on the side of the needle from which the work is fed and operates upon the shoe in advance of the needle to loosen the tacks in the shoe just before it is ted to the needle. The complete tack liiting operation is therefore completed bei'ore the needle has any opportunity to strike the tack. Moreover, the tack pulling tool by virtue of its position at one side oi the needle path operates without intericrintz' in any way with the usual construction and operation oi? the needle 1 or the necdlc guide h.

After the needle has entered the work and drawn back its loop oi thread, the back gage slide and the back gage are retracted i'rom the work and the work is fed. In

order that the tack pulling tool shall not interfere with the feeding movement of the shoe. mechanism is provided for holding the tack pulling tool in its raised or deilated position until the back gage slide is fully retracted. This holding mechanism comprises a pawl ll) pivotally mounted by means of a screw stud 3'] upon the rear end oi the plate l7. and normally held in engagement with ratchet tceth 32 on the rear oi the tack pulling tool 15 by means oi the rpstandiug rcar portion I1 oi a leaf-spring 23 1 which is secured to the plate 17 bymcans oi a screw I15. \Vhcn the for aid end oil? the tack pulling tool 15 is raised by contact with the shoe. the pawl i l operates to hold the i'orward end of the tack pulling tool in its raised position. \Vhen thc slide ll) has ncarl reached the bm-lrw'ard limit of" its movement and the lack pulling tool is tl1erei'orc so far remit-Ll from the work as not in interl'cre niiihe Feed. the pawl 30 .q ed by means oi an ailiusialde stop ll) inst which the upper end oi the pawl brought. "the stop to is :uljustably noxuntcd b mean ot a screw ii and slot i).

conn ction so that the time o' trii iping the i'ere with the pawl may be varied. The screw etl is threaded in a block 43 which in turn is held by means of a screw d4: upon a. part 45 of the frame of the machine. After the tack pulling tool is released by the pawl 30, its forward end is turned downward by means oi the pressure of the forward end of the spring Stwhich bears against the top of the tack pulling tool. The movement oi? the tack pulling tool under the action of the spring 34 is limited by means of a screw 51 which is loosely received in a curved slot 52 in the tack pulling tool. .1)

The operation of the machine is briefly as follows: After the shoe has been fed, the back gage 1.1 is moved iiorward by the spring of the back gage slide and ca. ies with it the tack pulling tool '15. the claw of which engages beneath the head of the tack 26 before the back gage 11 is brought into engagement with the shoe. After the tack pulling claw 25 has engaged thetack, the. back continues its forward movement under the action oi? the spring oi? the back slide and the tack pulling tool 15 rides over the shoe. and its claw 25 is moved iorwardly and upwardly over the shoe to pull the tack 26. The needle then descends and penet ates the work and draws back its loop of thread. After the needle is retracted. the back gage slide lll together with the back gage 11 and tack pulling tool 15 are retracted backward away from the work. During the first part oi: this backward movement. the (law as oi? the. tack pulling tool is held above the shoe by means of the pawl oi so that it does not interfeedius' movement oi the shoe. llhen the back gag slide 'lOlias nearly reached the limit oi its backward movement, the pawl 30 is tripped and allows the claw oi' the tack pulling; tool to be returned into position to again operate when the back gage again moves against the shoe.

lVhilc the preferred embodiment (if the present invention has been specifically illustrated and described, and has been particularly explained with reference to the Goodyear welt and turn machine, it is to be understood that. the prcr ent invention is nolimited to its prclerrcd embodiment or to its use in connection with the Goodyear. machine. but may be embodied in other constructions of tack pullers and may be applied to other shoe sewing machincr-i within the scope of the invention as set forth in the following laims.

1. An. inseam shoe sewing machine haw inn. in combination. stitch forming dericcs including a curved hook needle, means for i'ccding the work. a tack pulling tool. mechanism operating to bring the tack pulling tool into engagcuu-n with a tack and against the shoe. said ta k pulling tool when brought against tllc sh :a) being deiiccled by the tack pulling tool is again moved toward the shoe.

2. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, means for feeding the work, a back gage, a back'gage slide moved toward and from the work during the cycle of stitch forming operations, a tack pulling tool pivotally supported by the back gage slide and having an inclined work engaging surface which slides over the shoe when the slide is moved toward the shoe and deflects the tack pulling tool and causesit to pull a tack from the shoe, and

a device for holding the tack pulling tool in its deflected position when the shoe is fed.

3. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a tack puller, mechanism operating to bring the tack puller into engagement with a tack, and means'operated by contact with the shoe for moving the tack puller to pull the tack.

4. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a back gage slide moved toward and from the work during each cycle of stitch forming operations, and a tack pulling tool supported by the back gage slide and having an inclined work engaging surface which slides over the shoe when the slide is moved toward the shoe and deflects the tack pulling tool and causes it to pull a tack from the shoe.

An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a back gage moved toward and from the work during each cycle of stitch forming operations, a tack puller mounted on'the back gage, and means operated by contact with the shoe for moving the tack puller with relation to the back gage to pull tacks.

6. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, means for feeding the shoe, a tack pulling tool, mechanism operating to bring the tack pulling tool into engagement with a tack and against the shoe, said tack pulling tool when brought against the shoe being deficctcd by the shoe and operating when so deflected to pull the tack, and means for holding the tack pulling tool in its deflected position when the shoe is fed.

7. An inseam shoe sewing machine havthe side of the needle from which the Work is fed and operating upon the shoe before it is fed to the needle, and means for actuating the tack puller to only partially withdraw tacks from the shoe.

8. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a back gage slide moved toward and from the work durmg each cycle of stitch forming operatlons,

and a tack puller supported by the back gage slide and operating when the slide is moved toward the shoe to engage and pull a tack from the shoe.

9. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, -a tack pulling tool, and mechanism operating to bring the tack pulling tool into engagement with a tack and against the shoe, said tack pulling tool when brought against the shoe being deflected by the shoe and operating when so deflected to partially withdraw the tack from the shoe.

10. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a back gage, and a tackpuller pivotally mounted on the back gage;

11. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, means for feeding the shoe, a tack pulling tool, and means operating independently of the movement of the needle for advancing the tack pulling tool toward the shoe and causing it to engage and only partially withdraw a tack from the shoe.

12. An inseam shoe sewing machine having, in combination, stitch-forming devices including a curved hook needle, a back gage slide moved toward and from the work dur ing each cycle of stitch forming operations, and a tack puller supported by the back gage slide.

13. An inseam shoe sewing machine having, 1n combination, stitch forming vlces including a curved hook needle, a tac.. pulling tool, and mechanism operating to bring the tack pulling tool into engagement with a tack and against the shoe, said tack pulling tool when brought against the shoe being deflected by the shoe and operating when so deflected to pull the tack.

14. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, means for it to pull a, tack from the shoe, a spring actspring to return the tack pulling tool to its ingl to holllcl tle tool ggnifistlcthe shpe, a plawl original position.

anr rate et evice or o in t 1e too in P its deflected position when th shoe is fed, FRANk and means acting automatically to release Witnesses: the pawl and ratchet device when the slide ELIZABETH C. Comm), is moved away from the shoe and allow the Enrrn C. Hommoox.

Images