US1467586A - Inseam shoe-sewing machine - Google Patents

Description

W. C. MEYER INSEAM SHOE SEWING MACHINE Sept. 11, 1923. ,.--1,'467,586

Filed June 27, 1919 duly; WM

Patented Sept. 11, 1923;

UNE'E'ED STATES" ENE" WILLIAM CRISTVON MEYER, on BEVERLY, MAS-showtime, nssieitoa'ro' unirn'n SHOE MACHINERY COMPANY. OF PATEBSON, NEW anasnm a conronarron on NEW JERSEY.v

I Application fil'ed Julie 27,

To all whom it may concern:

Be it known that LWILLIAM C. MEYER, a citizen of the United States, residing at Beverly, in the county of Essex and State'of Massachusetts, have invented certain new' and useful Improvements in Inseam Shoe- Sewing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhich it ap pertains to make and use the same;

This inventionrelates to sewing machines of the class employed in sewing'inseams of shoes.'

The object of the invention is to improve the construction and mode of operation of certain parts of the work supporting mechanism inshoe sewingmachines of the above class. a

With this object in view the features of the invention consist in certain novel and imroved constructions,arrangements and combinations of parts hereinafter described and particularly pointed out in the claims, the advantages of which will be readilyunderstood and appreciated by those skilled in the art. v

The features of the invention will be clearly understood from the accompanying draw ings illustrating the invention in its preferred form and the following'detailed description of the constructions therein shown.

In the drawingsFigure 1 is a view in side elevation of a portion of an inseam shoe sewiug machine embodying the invention; Fig. 2 is a detail view illustrating a portion of the mechanism shown in Fig. 1 partly in rear elevation and partly in section on the line 22 of said figure; Fig. 3 is a detail sectional view taken substantially on the line 33 of Fig. 2. I

The invention is illustrated in the drawings as embodied in a machine having,- except as'hereinafter described. substantially s5 the same construction and mode-of operation as the machine illustrated and described in applicants pending application, Ser. No. 165,107, filed- April 28, 1917. The machine shown in the drawings" comprises an oscillating curved hook needle 2, a work feeding awl ha looper 6, a channel guide 8, a thread finger 10 and a back gage 12. The back gage is mounted; on theforward endof aslide 14;

p which is moved forwardly to bring the'back gage into engagement with the'shoes' by the INsEAM'sHoE-sEWiue 'ilufonriiin".

1919. ser'ra1'No'.'307,127.

action ofa spring 16. The slide 14 is locked in forward position during a portion of each cycle of operations andiis retracted to carry the back gageout of engagement'with the shoe during the feeding of the shoe-by means of a clutch mechanism (not shown) which is actuated and controlled from alever"18 pivoted on ashaft 20 secured in the frame of the machine. "All of the parts thus far de-' scribed have'substantiallythe same construction, arrangement and mode of operation; as the corresponding parts of the machine illustrated and described in the above appli cation. Y

The machine is provided with the usual back rest 22to "assist in supporting" the shoe during the sewing operation and the present invention is illustrated as embodied the back. rest mechanism.. The back rest' is mounted on the forward end of aslide 24 ar-' ranged'for forward and rearward movement in suitable, guidesinthe frame of the ma chine. The slide 2 l is acted. upon by a coiledspring 26 coiled about a boss 28 on the frame, one arm of, which engages a fixed abutment 30 on the frame and the other arm of ,which engages a pin 32 mounted on the slide 24 The slide 24 isalso acted upon by a spring 34 one arm of which passes through an. arm 36 formed on a plate 40 secured to thev frame and engages at its end a projection42 on said plate; and .theother arm of which engagesa pin 44 mounted on the slide. The springs 26 and 34 normallypress the. slide 24 forwardly in its guides in the frame and cause the back rest to follow thecontour.of the shqeas the shoe is manipulated to presentthe-sanie to the mechanism. The forward movement of theslidef 24. under the influence of thesprings-26, andS L islimited bythe engagement of a projection. 1-6.,on the frame extending into'a slot 48- in the slide with the rear 'end of said slotl;

During the greater. part" of each cycle of operations and preferably, at all'times ex cept during the feeding movement of the shoe theloack rest is,v locked; againstlreither forward, or rearwardmovement. When the sheets being fed the back rest is unlocked so that it can accommodate itself to-the position of the shoe. The locking. of the back rest against'rearward movementcauses the same to furnish a rigidiabutinentfto supper (the shoe .jduring the {formation ,of

a stitch. The' slocliin'g ,of lthejbaclr" rest 1 against forward movement as the channel. guide isact-uated to disengage its acting end. from the bottom of the channel prevents,- the back rest from then moving forward. and displacing the shoe.

The locking mechanism for the back restcomprises a pair of clutch rolls 50 and 52 resting on the upper surface of the slide: 24 and a locking lever 54 pivoted at 56 on the frame, the forward end of which engages and is supported by said rolls. The:

locking lever 54 is provided with an inclined contact face 58' for engagement with the roll 50 to lock the slide 24: against forward movement and with an oppositely in-- clined contact face 60 for engagement with the roll 52 to lock the slide'against rearward. movement. The rolls 50 and 52 are yieldingly held in position longitudinally of the locking lever by means of spring pressed. plungers 62.

As long as the locking lever 54: is free to move upwardly the clutch rolls 50 and 52 allow the slide 24: to move forwardly or rearwardly. In 'locking the slide 24 the locking lever 54: is' forced downwardly against therolls 50 and 52 causing the rolls: to grip the slide. ,7 Thelocking lever is 30, forced downwardly against the clutch rolls:

by means of a roll 64 mounted on one arm of a lever 66 pivoted on the shaft 20, said roll being arranged to engage the upper face of the locking lever which is inclined slight-- ly upwardly from its rear toward its for-- ward end. The lever 66 is swung forwardly to cause the roll 64 to force the locking lever downwardly and is swung rearwardly to release the locking lever. The lever 66- is actuated from the lever 18. The lever 66 is swung forwardly from the lever 18 as: the lower arm of the latter lever swings for-- wardly through a spring 68' interposed between a projection 70 on the lever 66 and a projection 72 on the lever 18. The lever 66 is swung rearwardly as the lower armof the lever 18 swings rea-rwardly through the engagement of an abutment screw 74 threaded into a projection 76 on the lever 66 with theprojec'tion 72 on the leve118. The parts are constructed. and arranged so that the: lockinglever 54'is actuated to lock the slide 24 and the'forward movement of thelever 66 is limited by the engagement of the roll 64 with the locking lever before the lower arm of the leverlS completes its forward movement, the spring 68 being compressed duringthe continued forward movement of the lower arm on the latter lever. This insures the actuation of; the parts of the locking mechanism in a reliable manner to lock the slide 24' even when the parts have become considerably worn by continued use, and eliminates the necessity of frequent adjustment of the parts to take up. wear. The extent to which the '1ever'66 is swung rear- Having explained the nature and object of the invention, and having specifically described a machine embodying the invention in its preferred form, what is claimed is:

l. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a forwardly and rearwardly movable slide, a shoe support mounted to move with the slide, means for moving the slide longitudinally and means for locking the slide from forward or rearward movement during each cycle of operations comprising two locking rolls for engaging the slide, a locking member having oppositely inclined faces arranged respec-- tively'to engage the rolls simultaneously,

, and means operatin to press said member toward the rolls and to release the same during each cycle. I

2. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a forwardly and rearwardly movable slide, a'shoe support mounted to move with the slide, means for moving the slide longitudinally andi means for locking the slide during each cycle of operations comprising a locking roll for engaging the slide, a locking lever having on one side an inclined face for engaging the roll, a reciprocatory member ar ranged during its movement in one direction to press the lever laterally toward the roll andduring its movement in the oppo sitedirection to release the lever. and means for moving said member yieldingly in the first direction and for moving said member in the latter direction.

An inseam shoe sewing'm'achine having, in combination; stitch forming devices including a curved hook needle, a forwardly and rearwardlv movable slide, a shoe support mounted to move with'the slide. means for moving the slide longitudinally and means for locking the slide during each cycle of operations comprising a locking roll for engaging the slide, a locking member having an inclined face for engaging the roll. an oscillatory lever, a roll carried by the lever and arranged to engage the locking member and force the same toward the roll during the movement of the oscillatory lever in oneedirection and to release thelocking member during the movement'of the oscillatory lever in the opposite direction, an actuating lever pivoted co-axially with the oscillatory lever, a spring interposed between said levers through which the oscillatory lever is moved from the actuating lever in the first direction, and an abutment screw threaded into the oscillatory lever and arranged to engage the actuating lever through which the oscillatory lever is moved from the actuating lever in the latter direction.

4. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a forwardly and rearwardly movable slide, a shoe support mounted to move with the slide, means for moving the slide longitudinally and means for locking the slide during each cycle of operations comprising a locking roll for engaging the slide, a locking lever having an inclined face for engaging the roll, an oscillatory lever, a roll carried by the lever arranged to engage the locking lever and force the same toward the roll during the movement of the oscillatory lever in one direction and to release the locking lever during the movement of the oscillatory lever in the opposite direction, the locking lever having a contact face for engagement with the roll inclined in the direction of movement of the roll.

5. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a forwardly and rearwardly movable slide, a shoe support mounted to move with the slide, means for moving the slide longitudinally, roll clutches for simultaneously locking the slide from forward or rearward movement during each cycle of operations comprising a look ing member having oppositely inclined roll engaging faces, and means operating to move said member into and out of locking position during each cycle.

6. An inseam shoe sewing machine having, in combination, stitch forming devices including a curved hook needle, a forwardly and rearwardly movable slide, a shoe support mounted to move with the slide, means for moving the slide longitudinally, a slide clutching device, and means for actuating said device during each cycle of operations to lock the slide simultaneously against forward and rearward movement.

WILLIAM GRISTVON MEYER.

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