US1348176A - Glove-sewing machine - Google Patents

Description

F. G. HOTKA.

GLOVE SEWING MACHINE.

APPLICATION FILED FEB- |7| |9l9| 1,348,176. Pat ntd A g- 3,1920.

V 3 SHEETS-SHEET 2- INVENTQR F. G. HOTKA. GLOVE SEWING MACHINE. APPLICATION FILED FEB- 17, 1919.

3 SHEET$- Patented Aug. 3, 1920.

SHEET 3 ATTORNEYS UNITED STATES and other gloves wherein the wearer makes considerable use of the palmand insidejsurface of the fingers of his. gloves,.'that said -palm and-inner surface of theglove fingers .In prov d- I "view of'a moccasin type. ofglove finger.

beas free aspossible of seamsj 7 ing a glove of this form manufacturers have adopted what istermed a moccasin'dtype of glove In such a glove the finger seams are on thebacks of the fingerssojthatthe under surface of. said.fingersis'sn1 ooth.

,gHeretofore gloves ofthisgeneral character have been almost entirelylmadeby hand asjthe ordinary type of leather sewing machine .cannot perform" thefanecessary functions. It ,istherefore the princlpal ob ect of' the present invention to provide .an attachment for a standard type ofsewing machine which willpermit lovesof thislnature to be manufactured 111110 more rapidlyrand -ticularly .at'r'less cost than by the old. hand, methods.

vention; resides incertain; novel. features of construction, combination and arrangement of parts whichwill be hereinafter more par- 1 described and explained and shown 7 in the accompanying drawings which illusf'trate one embod ment. of the invention, it

being; understood, however, that'fv'arious changes may be-made in-the'form and pro- -portion of the several" parts o-f theiattach- "ment without-departingfromnthespirit of gthelinyention. r

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. Figure 1 represents a; vertical. sectional viewof a standardsewing"machine having my invention appliedthereto.

stantially on the plane foftheline of '55iyiew on the planeoftheline 33'of Fig. 1.

I Specificationot Letters ratena t t A ienation fil ed rbiuari 17. 1919. Serial No. 277 .506.

pieces of material stitched" togethezj the with my invention the moccasin type isto be made.

fby'these shafts 5 and 6 and is jWiththis general object in view the, inleather,jor other material, A be of greater Fig; Q-isa horizontal section takenjs ub- \PFATFENT; OFFICE- ,drBANKencm,wrsconsm. 1" A enovnjsnwme MACHINE.

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' Fig. 3 is a detail sectional view on the line 3 3 of Fig. '3. i 7 '1 Fig. 4 is a view similar to Fig. 3 taken on the linedi of Fig. 1.

F lgs. 5, 6 and 7 are semi-diagrammatic views showing the several steps in the operation of my improved machine on two pieces of leather or the like. r I

Fig. 8 is a fragmentary edge "iew of two stitching operationv having been performed on a machine manufactured in accordance Fig. 9 is a plan view of a portion of the finger blanks from which a glove finger of Fig. 10 is a plan viewof'one end ofs'uch a finger, the material being shown in Fig. 9.

Fig. 11 is a detail longitudinal sectional Referring more particularl to the several figuresof the drawing it benotedthat 1 the standard form ofsewing machine with which my invention is .used consists essengitudinally extended main drive shaft 5', and

the similarly positioned rock shaft 6; 1 My improved mechanism; is operated entirely V largely posi tioned beneath-the overarm f Since it'is essential in the moccasin type of glove finger that the inner blank of size than the outer blank B,.it is-necessary I that the end or rounded portion of theffirst mentioned blank have its edge. tuckedor gathered so as to bring the said edge 'into position to be stitched to the corresponding .edge of the other blank The invention illustrated is adapted to simultaneously form these tucks in the blank A and sew the two blanks A and B together.

Therefore in carrying out the invention 100 and 6 asfheretofore set forth actuates this tucker 7 to intermittently engage it with. the

' lower blank A to produce a successi've row of tucks, said tucker being located between the twoblanks A and B as clearly indicated in Figs. 5, 6 and 7. The tucker 7 is carried by a depending arm which in turn is mounted on-one end of an intermediately pivoted oscillatory rod 11. This rod 11 is slidably positioned in a pair of spaced bearings 12 of a yoke 13, the latter being pivotedto a support 14 mounted on the table 1.

The 1 end of the rod 11 opposite to that which carries the tucker 7 "is adapted to be operated upon by one arm 15 of a bell crank,

said bell crank being formed of this arm 15.

' a short rock shaft 16 journaled in the bearing of a bracket 17, and a rod 18.

he upper end of the rod-18 carries a roller 19 for operation in a cam groove 20 of a rotary cam 21, the same being keyed to the shaft 5. From Fig.3 it will be seen that the cam groove 20 is of suchshape that the rock shaft 16 will be oscillated to cause the raising andalowering ofthe arm 15 and the consequentrocking of: the rod 11 and the A coil spring 22 is secured on the table 1 and has one arm 23 extended beneath the rod 11 to cause'a quickupward movement of the.

adjacent end thereof with a resulting rapid downward movement of the tucker 7.

While the tucker isengaged with the work material it is desirable that the same be moved approximately in a horizontal plane or'relatively parallel to the surface of the Work-table This particular movement is procured by the oscillation of the rod 11 which is o erated indirectly by the rotation of the sha t 5; It might be here pointed out that the shaft 5 carries a seeond rotary cam 24 in the cam groove of which is disposed a roller mounted on the free end of the lever 25, the latter being connected intermediate its ends with the rock shaft 6 by a connect-' ing)member 26.

epending' from the intermediate portion of the rock shaft 6 and fixed thereto so as to be oscillated thereby is a stem 27, the free end of which is adjustably connected with a lever 28 intermediate the ends of the latter,

1 and the lower end of this lever 28 is pivoted to a support 28 carried by the table 1. A

rod 29 is adjustablyfixed to the rod 11 ad-' xcoupling members 31 are slidably adjust- ..ableonthe lever 28 and rod 29 respectively whereby the amount of oscillation of the rod 11 may be varied, it being obvious that the oscillation .of the rock shaft6 is trans- I Jmitted through the stem 27, and the other elements just enumerated, to said rod 11.

Referring to Fig. 3 it will be noted that moved downwardly. M

the link 30 is also adjustable in length. In other words it is made in two sections, one

of which carries a'threaded stud 32 for engagement in the threaded socket 33 'of the other" Thus by disconnecting the link 30 from the coupling member 31 by removing the screw 34', stud 32. may be screwed into or out of the socket .33. V V

With the mechanism'thus far described the glove finger blanks will beproperly associated at the same time and irrespective of the usual operations of the 'a'wl 8 and the needle 9; However, it is "desirable. at times to move the tucker away from the Work ma terial so 'as to render it inoperative. For this purpose I' have provided a canimember 35 -pivoted to one 'of the'bearings 12-of the yoke 13 and operable by a handle 86.

WVhen the handle is moved in one direction this cam member 35 engages the lower connecting portionof the rod 29 and moves it away from saidbearing 12. This movement also causes the rod 11 to shift longitudi Jnally and away from the work-'m'a terial.

Uponmovement of the handle 36 in the op posite'direction the rod 11 is returned to lts original position by the tension of an ex- 'pansile spring 37. The hereinbefore described connection between thetwoparts of the link 30 is also adaptedtopermit the rod 9 29 to be shifted by thecam member 35 with out .deranging the other arts of the connec- 'tion between the stem2 and the rod 11.

From 'thefforegoing description it will be seen that the tucker? is'oscillate'd in two directions, that is' to say in planes at approximately right angles to eachother. The

,vertical movement is obviously caused by the rocking of the rod 11, while the substantially horizontal movement is occasioned by the'p'artial rotation of said rod 11. Whenever the tucker ismoved substantially horizontally it is engaged with the blank A of the glove finger and tends to move the same 7 toward the awl 8 and the needle 9, thus 1 causing the puckering 'or gatherin' of'the edge of the material as is clearly 's own in Figs. 5, 6, 7, and 10. -When the limit of travel of the tucker ina horizontal direction is reached thesame' is raised upwardly and rearwardly to return it to its original "po'siv tion, or to the position occupied before it is I Since this machine does away entirely" with hand labor it is believedthat it will be obvious that the cost of manufacture will be greatly lessened whilethe perfection of workmanship will be materially increased. Also in view of the fact that the mecha nism may be used on types of machines now generally employed in'leather working establishments, the'cost of gloves of this character will be further decreased.

I claim: K

1. In a machine of the class described,

means for forming tucks in flexible material comprising a rock shaft, a tucking arm carried by the shaft, means for oscillating the rock shaft onits axis, and means for oscillating the rock shaft in the plane of its axis, said oscillations being simultaneousto swing the tucking arm in two directions at the same time.

2. In a machine of the class described, means for forming tucks in flexible material comprising an oscillatory arm, means for oscillating the arm Vertically to intermittently engage the flexible material, and means for oscillating the arm substantially horizontally when the same is engaged with said material.

3; In a machine of the class described, arod pivoted intermediate its ends, a tucking arm carried by the rod, means for rockingv the rod to move the arm toward and away from the work material, and means for oscillating the. rod when the arm is engaged with the work material, and means for Varying the degree of oscillation to modify the size of the tucks.

4. The combination with a sewing machine, of a rod pivoted intermediate its ends, a tucking arm carried by the rod and disposed adjacent the needle of said machine, and means ,for rocking the rod to move the arm toward and away from the work material, and means for oscillating the rod when the arm is engaged with the work material to tend to move said material toward said needle. 7

The combination with a sewing machine, of a rod pivoted intermediate its ends,

a tucking arm carried by the rod and disposed adjacent the needle of said machine, and means for rocking the rod to move the arm toward and away from the work material, and means for oscillating the rod when In testimony that I claim the fore-' going I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

I FRANK G. HOTKA.

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