US1707571A - Sewing machine - Google Patents

Description

April 2,1929- F. RICKS ET AL 1,707,571 7 Filed June 4' 1924 I iar Patented Apr. 2,, l929.

UNITEDJST'ATE x 1 ,707,.571f PA NT O F E;-

rnnn Ricks ArmnEGniALnBoYn woo-ncocx, OF'LEIGESTIE/R,ENGLAND, ASS'IYGNORS TO "UNITED snon MACHINERY conrozamron; oF PA'ljEItsoN Nfiw JERsEY, A 001% ronn'rron on NEW JERSEY.

I-YSEWIYNG MACHINE.

npplieation filed June 4, 1924, Serial No. 717,769,.51'1141 in Great'BritainJune as, 1923.

This invention relates to bag corner sew-. ing and like operations where the work plates the provision in a machine for sewing bag corners of a horn rotatable and cantable which is freely movable to'lie in different directions within the workpiece during the sewing and is also of adjustable operative shape so that "its shape may be'varied in accordance with the requirements of different workpieces or of the different internal corners of the same piece. i

Another feature of the invention conte1n-' plates the provisionof a rotary horn which is freely movable' to lie in different directions within the workpiece during the sew ing and is provided wth a substantially. rectilinear work entering portion that is adjustable about its tip transversely .of the c direction in which the hornis swung by 11'0- .tation of the horn, so that it may properly support objects of relatively small dimensions and-of tubular or oblong section. I

The above and other features of the inven tion will become fully evident to g those skilled in the art from the following descripmg on t) which, is concentric withthe balltion, givenby. Way ofexample, of one form of the invention. 1

In the accompanying drawings Figurelis a side elevation, partly in section of one form of horn according to "the invention applied to a machineof the type shown the application above referred to. Figure 2 is a section on the lines 2, 2 of Figurel; p t

Figure 3 shows, in plan,the position of the horn when asmall bag or case is'being' sewn along a side'edge; and V Figure 4 shows, in elevat1on,.the same bag being sewn at the end. i

The invention is shown appliedi toalock stitch sewing-machine having theconstruction and mode of operation of the machine shown and; described in Patent No. 473,870, dated-Apr1l29, 1892." This machine is provided with stitch forming and work feeding devices fully shown and described in said patent and including a curved h'ook needle and anawl indicated in Figure l. The machine is-ailso provided with a work-support 2 having two worksupporting faces arranged at right angles to eachotherand with their line of intersection extending along the line of feed.

These surfaces form' unyielding external supports for the faces needle path and that this inclination may be varied by adjustment of the support.

of the work adjoining the cornerand the j Y In this formof the invention the rotatable and angularly movable roll ortablet 1- which engages the inside ofthe. workpiece and holds it againstthe external work-support 2 during'the operation of the, machine is mounted on the ball-shaped end of a comparatively slender rectllinear bar 4 so as to be freely movable angularly' about the '5 having formed in it a square-section guideway 6 which is concentric with the. ballshaped end of the bar 4. A plate 7 fixed by screws 8 to the bracket covers the guideway. The bracket 5 is clamped by" a handscrew 9 to-a curved hollow .horn 10 (having flats =10 along. it to prevent 'the bracket turnsh'aped end of the bar 4 so that by loosening the hand-screw 9 the bracket 5 may "be moved, withoutaffecting the positionof the -work engaging tablet l, to substantially any desired position along the horn according positions above and below the bracket 5 so that the bar linay be quickly moved from one position to another. Thehorn 10 at its 7 upper end is fixed in a block 13 which is mounted on the frame of the machine in a manner similar to the horn supporting block described in the aforementioned specification so that'the horn may as a whole move vertically and also swing or cant towards and from the external work-support 2 and to either side of the sewing point (indicated la'in Figure3) of the machine as well as rotate about the axis of the pivot pin 15 which axis'lies, aswill be understood, in the plane of curvature; of the horn 10.

There is thus provided a work-supporting hornstructure, the shape of which may be varied according to the needs of differing workpieces, and the provision of a rectilinear terminal tablet supporting bar to said structure admits of the ends being sewn into tubular or' oblong section objects of relatively small dimensions.

'Having now particularly described and ascertained the nature of our said invent-ion and in what manner the same is to be performed, we declare that what we claim is:

1. A sewing machine for sewing bags or like articles having, in combination, means for externally supporting the work with both faces adjacent a corner at an inclination to the needle path, and a rotary and cantable horn that is freely rotatable and cantable to project into the workpiece from different directions duringthe sewing.

2. A sewing machine for sewing bags or like articles having, in combination, means for externally supporting the work with both faces adjacent a corner at an inclination to the needlepath, and a rotary and cantable horn freely movable'to project into the workpiece from different directions during the sewing of the same and comprising a substantially rectilinear work-entering portion that is adjustable about the tip of said work-entering portion transversely of the direction in which it is swung by rotation of the horn. v

3. A sewing machine for sewing bags or like articles having, in combination, means for externallysupporting the work with both faces adjacent a corner at an inclination to theneedle path, and a rotary andv cantable' horn freely movable to project into the workpiece from different directions during the sewing of the same and comprising a work-entering portion that is adjustable about the tip of said work-entering portion transversely of the direction in which it is swung by rotation of the horn.

i. A sewing machine for sewing bags or like articles having, in combinatiom means for externally supporting the work with both faces ad acent a corner at'an inclination to the needle path, and a rotary and cantable horn freelymovable to lie in different directions in the workpiece during the sewing of the same and comprising an arcuate rotary member and a work-entering member mounted thereon to be adjustable about the tip of said work-entering portion on saidmember,the said tip beingforthat purpose at the center of curvature of the arcuate member.

5. A sewing machine for sewing bags or like articles having, in combination, means for externally supporting the work with both faces adjacent a corner at an inclination to the needle path, and a rotary and cantable horn freelyv movable to lie in different directions in the workpieceduring the sewing of the same and comprising an arcuate member mounted for rotation about an axis passing through the horn tip in the plane of the curvature of the arcuat'e'memher, and a worlr-entering member mounted on the arcuate member for adjustment about the tip vof said work-entering member, the said tip being for'tha't'purp'ose at the center of curvature of the ar'c'uate member.

6. A sewing machine for sewing bags or like articles having, in combination, means for externally supporting the work with both faces adjacent a corner at an inclination to the needle path, and a rotary. and cantable horn'freely movable to lie in different directions in the workpiece during the sewing of the same and comprising an arcuate rotary member, and a KVOIlPGILtBIlIIg member mounted thereon for adjustment about the tip of said work-entering member and a support above the sewing point in which thehornis mounted and from which it depends.

7. A sewing machinefor sewing bags or aboutthe tip of the saidwork-entering memher, and stops adjustable on the arcuate member for determining different adjusted positions of the work ent ering'member.

8. A sewing machine for sewing bags or like articles having, in combination, means for externally supporting the work with both faces adjacent acorner at an inclination to the needle path, and a bag-entering horn mounted for rotary movement about an axis passing through its tip and comprising an arcuate member, the center of curvature of which is at the tip, and a work-entering member mounted. thereon for adjustment about the tip of the said work-entering member.

9. A sewing machine for sewing bags or like articles having, in combination, means for externally supporting the work with both faces adjacent a corner at an inclination to'the needle path, a bag-entering horn mounted for rotary movement about an axis which is at the tip, a work-entering membermounted thereon for adjustment about the tip of said work-enterin "member; and a freely swivelling work-supporting tablet at the tip of the horn.v 10. A machine for sewing bag corners and the like having a rotary and-cantable horn freely rotatable and cantabledur'ing the sewing operation to project into the Workpiece from different directions during .the sewing thereof. 7 v I 11. A machine for sewing bag corners and the like having a work-entering horn come prising a freely rotatable and cantable arcuate member and a work-entering member mounted thereonto be adjustable about the tip of said Work-entering member on the saidmember, the tip being for that purpose at the center of curvature of the arcuate, member. f o

12. A sewingmachine for sewing bags or like articles having in con1bination,"means. for externally supporting the work with both faces adjacent a corner at an inclination to the needle path; and a rotary and cantable horn that is freely movable tov lie in different directions in the workpiece durmg the sewing and comprising a Work-enterv I ing member adjustable to change the operative shape ofthe horn.

18. A machine for sewing bag corners and the like having a rotary and cantable horn freely movable to lie in different directions within the workpiece during the sewing thereof and provided with a work-entering portion adjustable to changethe operative shape of the horn.

In testimony whereof we have signed our names tothis specification. v

FRED HICKS. REGINALD BOYD WOODCOCK.

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