US1160935A - Inseam shoe-sewing machine. - Google Patents

Description

W. C. MEYER.

INSEAM SHOE SEWING MACHINE.

APPLICATION FILED JULY24, l9l2.

Patented Nov. 1', 19h").

3 SHEETS-SHEET I.

w. 0. MEYER.

INSEAM SHOE SEWING MACHINE.

APPLICATION FILED IULY24. 1912 Patented Nov. 16, 1915.

-3 SHEETSSHEET 2- W. C. MEYER.

INSEAM SHOE SEWING MACHINE.

APPLICATION HLED JULY24, 1912. v

Patented Nov. 16, 1915.

3 SHEETSSHEET 3.

an clarion WILLIAM C. MEYER, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSO'N, NEW JERSEY, A COBPORATIGN OF NEW JERSEY.

INSEAM SHOE-SEWING MACHINE.

Specification of Letters Patent.

Patented Nov, to, 9315,

Original application filed June 22, 1910, Serial No; 568,248. Divided and this a plication filed J'uly 24, 191% Serial N0.,711,226.

ing machines, and more particularly to welt guide mechanisms for such machines The object of the invention is to produce a shoe sewing machine having an improved welt guide mechanism which is simple and light'i'n construction, which may be rapidly and accurately operated in timed relation to the other parts of the machine with a minimum of friction.

WVith the above object in view the invention comprises certain improved features set forth in the following description and particularly pointed out in the claims.

The various features of the invention willbe clearly understood from an inspection of the accompanying drawings illustrating a machine embodying the same in their preferred forms.

Figure 1 of the drawings is a view in side elevation, partly in section, of the machine;

' Fig. 2 is a longitudinal sectional elevation of the machine; Fig. 3 is a detail sectional View taken on the line 3 3 of l ig. 2; and

Fig. 4; is a detail, cross-sectional view taken on the line 4-'l of Fig. '3.

The machine illustrated in the drmv-lngs is a welt shoe sewing machine adapted to sew the welt to the upper and insole of a lasted shoe. The principal parts of the machine are a curved hook needleentering the shoe from the outside so that the chain of the seam of stitches is laid on the wclt; a curved awl entering the channel of the shoe: a throzul-ann, a looper, a'takeup, an auxiliary takcu 'i, a tension devil-1 a channel guide and a welt guide; These parts have the same general mode of operation as the cor responding parts in the \vcll-lmowu Goodyour welt and turn shooscwing machine, the construction aiid mode of operation of which is disclosed with substantial accuracy the auxiliary takeup, 7 the channel guide, i

and 8 the tension device.

Theparts briefly referred to above are constructed and'arranged in the same manner and operated by the same mechanism as the corresponding parts of the machine disclosed in Patent No. 1,059,380, dated April 22, 1913, the present application constituting a division of the application on which the said patent was granted. For a full and complete description of these parts, reference may be had to said patent.

The welt guide,indicated at 9, comprises the usual parts for supporting and guiding the welt. This guide is mounted upon the forward end of an arm 10 pivoted at 11 upon the forward end of the rod l which constitutes the welt guide controller bar. At its rear end the arm 10is provided with a roll engaging a cam groove in a plate 13 secured to the frame of the machine, the shape of the groove being such that an oscillating movement is imparted to the arm 10 as tlie rod 19 is advanced and retracted. This {oscillating movement of the'arm 10 causes the portion of the welt guide in proximity to the needle to move in a path which practically coincides with the path of the needle so that the welt is always positioned with relation to the needle, regardless of the thickness of the work being operated upon. The rod '12 is advanced and retracted to more the welt guide toward and from the shoe, and is locked in its advanced position during each cycle of operations of the ma-v chine by means of two springs 14 and 15, a cam actuated lever 16, two clutch boxes 17 and 18, and a clutch actuating block 19 pivotally mounted on the. lower end. of the lever 16. The clutch boxes 17 and 18, and the clutch actuating block 19, are all mounted upon the rod, and the rod is supported by means of a screw threaded pin 20 arranged axially of the pivotal connection between the clutch actuating block 19 and lever 16. and projecting into a slot-v in the 12 is pivotally supported at the upper end of an arm 21 pivotally mounted in a block 22 secured to the frame of the machine. The rod.12 is thus supported at two points, in a substantially frictionless manner, so that it responds quickly to its actuating mechanism, and can be moved with certainty into and out of engagement with the shoe at the proper times during each cycle of operations of the machine. The welt guide controller bar 12 is light. as compared with such bars or slides which have heretofore been used, and the manner in which it is mounted and actuated enables it to be operated in perfect timed relation to the other parts of the machine when the machine is running at high speed. To form'a yielding stop for the welt guide controller bah. when no work is in the machine, la spring pressed plunger 23 is mounted in the block 22 and is arranged to be engaged by an adjustable stop screw 24 mounted in the lower end of the arm 21.

jclutch actuating block 19. against flat surfaces formcd'on the rod 12,

To enable the position of the welt guide to be adjusted with relation to the path of the needle the block 22 is mounted on the frame of the machine so as to be capable of vertical adjustment. The block is adjusted by means of a screw-threaded pin 25 (see Fig. 2) which is secured to the block 22 and which is engaged by an adjusting nut 26 seated in a slot in the machine frame. The block 22. is held in adjusted position by locking bolts- 27 passed through slots 27 a in the block and screwed into a bracket 27" on the frame.

To advance the welt guide controller bar 12 so as to bring the welt guide 9 into engagement with the shoe, the springs 14 and 15 'are utilized. Both of these springs act on the slide during the first portion of its advancing movement, but after the welt guide has nearly reached the shoe, the spring 15 is thrown out of operation, and the movement of the'guide is continued by the spring 14. The spring 14 is light. as compared with the spring 1.5, and thus the final movement of the welt guide against the shoe is produced by a comparatively light pressure, and does not tend to disturb thc shoe in the hands of the operator, or knock it down? when the welt guide engages the shoe. To throw the spring 15 out of operation during the advancing movement of the rod 12, an adjust able eccentric pin 28 is provided which forms a stop for one side of the spring, as is clearly shown in Fig. 2.

The mechanism for locking the welt guide in its advanced position and for retracting the welt guide, comprises the clutch boxes 17 and 18 and the clutch actuating block 19. The clutch box 17 is provided with clutch rolls 29 which are arranged to be engaged by inclined surfaces or blocks 30 mounted in the These rolls rest and are forced against these. surfaces to engaged loosely by a projection 17 from the frame of the machine. The clutch box is acted upon by a leaf spring 31 which tends to force the box toward the rear of the machine and hold it in the position indicated in Fig. 2. When the clutch box is actuated by the block 19 to grip the rod 12, itran move forward a short distance and thus insure accuracy in the operation of the clutch rolls and avoid breakage of any of the parts.

This forward movement of the clutch box 17 also imparts a slight positive forwardmovement to the welt guide which gives a linal positive squeeze to the work just before the welt guide is locked. The clutch box 18 is utilized in retracting the welt guide. This clutch box is provided with clutrlu rolls airangedin the same manner as the clutch rolls 29 of the box 17, and adapted to be engaged by the inclined surfaces of blocks 32 mounted in the opposite end of the block 19 from the blocks 30. The clutch box 18 is mounted to move longitudinally of the rod 12, and its forward movement is limited by the engagement of a shoulder 33 on the box with a projection on the machine frame. The clutch box 18 is connected with the clutch actuating block 19 so that it advances therewith, by a spring 34.

The nature and object of the invention having been explained, and the preferred embodiment of the invention having been described, what is claimed is 1. A shoe sewing machine, having, in

combination, stitch forming devices includ- I 110 mg a curved hook needle, a ,welt guide. a welt guide controller bar, a pivotally mounted link supporting the bar at one point, and a cam lever for actuating the bar supporting the bar at another point.

2.'A shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a welt guide, a welt guide controller bar, a cam actuated lever, and means operated by the lever to lock the bar in advanced position and to retract the bar. 1

3. A shoe sewing machine, having, in combination, stitch forn'iing, devices including a curved hoo'lc needle, a welt guide, a welt guide controller bar, two springs for advancing the bar, and means for tl'irowing one spring out of operation during the ad vancing-movement of the bar.

4:. A shoe sewing machine, having,in combination stitch forming devices ineluding a curved hook needle, 21 welt guide, a welt guide controller bar, a locking clutch box and an actuating clutch box mounted thereon, a. clutch actuator mounted on the her between the boxes, arranged to cooperete with one box to lock the bar in advnnced position and to cooperate with the other box to retract the bar, and means vtor moving the actuator.

5. A. shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a welt guide, a spring to force the welt guide yieldinglv into engagement with the work, means for thereafter forcing. the guide positively against the work and looking it in position, and means for retracting the well guid during each cycle of operations of the muchine.v

6. A shoe sewing machine, having. in combination, stitch forming (leviccs including a curved hook needle, n welt guide. a welt guide. controller bar, mums for yieldingly forcing the bar toward the work to bring .the well; guide into engagement with the work, and means for gripping the bar and forcing it forward to force the welt guide against the work and for locking the bar in position. 7. A shoe sewing machine, having, in combination, stitch forming devices including; it curved hook needle, n welt guide, :1'

welt guide controller her, means for yield' ingly forcing the welt guide bar toward the work, a clutch box mounted on the bur, and movable therewith, endnnenns tor thereafter moving the clutch box to grip the our and lock it in position.

a. it shoe sewing machine, having, in combination, stitch forming devices includ ing it curved hookneedle, u welt guide, a welt guide controller our, movable toward and from the shoe, ii pivo lnlly mounted urn] supporting the forward end of the her, and

u yielding stop for the arm to limit the forward movement of the her.

9.1K shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, u welt guide, a

welt guide controller bar, it pivotally mounted nz'm supporting the forward end o'l the hur. and means for adjusting the urm to udjust the position of the welt guisile. 1

1.0. A shoe iring machine, lmving. in combination. stitch forming devices including ii curved hook needle, it welt guide, a welt guide controller hur, n welt guide carricr pivotally mounted on the forwurd end of the her, a strdi-ionnr3 urn engaging the welt carrier to impart an oscillating morement thereto during the movements of the bur, :1. pivotnllv nujunitcd arm supporting the ilnwvurd end of the her, nnd menus for adjusting the arm to adjust the position of. the welt guide carrier.

H. Asher sewing nnurhinc, having, in ,*oi nhi1mtil.m. stitch forming devices, includng :1 curved hook needle. n welt guide, n welt guide controller lung clutch devices urrnngcd to not on the bur. u lutch actuator movuldc longitmhmilly of the her and not ing when moved in either direction to cause the 'lutch devie to clutch the bur.

12. .l shoe owing machine, having, in combination. sliltch hirming devices, lllCllllIl ing :1 curved hook needle, ii welt guide, :1 welt guide controller"bur, clutch devices mounted on the her. n clutch :u-tiuilor mounted on the lmr for movement longitudinally thereof and noting when moved in either direction to cause the clutch devices to clutch the bur.

A shoe sewing nmchinc, inning. in comhinution. stitch forming devices includ ing a curved hook needle, welt guide, a welt guide controller her, :i s for yieldingly engaging the welt guide with the work, and n friction clutch for gripping end moving the her to udvumae the welt guide positively n priuletermined distnnce.

in testimony whereof, I have signed my mime to this specification in the presence of two subscribing witnesses.

WHJL IAM C, Mllli'l lli, llitnesses v i Cncs'rnn/E. Romans, RUTH E- WARD.

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