US1209009A - Sewing-machine. - Google Patents

Description

J. R. MDFFA TT & H. s. KELSO.

SEWING MACHINE.

APPLICATION FILED IAN-4.19I2- 1,209,009, Pate nted Dec. 19,19

5 SHEETS-SHEET a.

J. R. MOFFATT & R. S. KELSO.

SEWING MACHINE. I APPLICATION FILED JAN. 4. 1912.

1,209,009. Patented Dec.19,1916.

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J. R. MOFFATT & R. s. Kuso.

SEWING MACHINE. APPLICATION MEDIAN-4,1912- 1,209,009. Patented Dec19,1916.

'5 SHEETS-SHEET 5.

Grier/mags turned and overseamed, or left unturned or I sra'rns r arnnr @FFIQ JAMES B.'MOFFATT AND RALPH S. KELSO, OF CHICAGO, ILLINOIS, ASSIGNORS TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

7 0 all whom it may concern:

Be it known that we, JAMns R. MOFFATT and RALPH S. KELso, citizens of the United States, residing at Chicago, in the county of Cook, Stateof Illinois, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a description, reference being had to the.accompanying drawing and to the letters and figures of reference marked thereon.

Our invention relates to improvements in sewing machines and particularly to a movable folder or edge turner for turning the edge. of the fabric before sewingfwith means for rendering the-turner efiective'or ineffective at the will of the operator, and j that too, without interfering with the action of the stitch forming mechanism.

In an application heretofore filed by Henry J. Dahl on the 6th day of October. 1910, Serial No. 585,611, the throat plate of a Union Special overseaming machine, such as illustrated in'PatentNo. 962,974, of June 28th, 1910, is shown as provided with a stationary edge turner located between the trimmer and. the stitch forming mechanism for turning a slight fold on the edge of the fabric to be overseamed, the folded edge being coveredand stitched down (and if desired, a tape secured thereto also) by the overseam stitches. e have found it desirable to provide an edge turner which at the will of the operator may be manipulated to be effective .or ineffective so that on different classes-of goods, or on difierent portions of the same work, the edge may be fiat and overseamed, as desired. For example, in the manufacture of pockets and securing them to garments, in the hanging or unattached part of the pocket, and where the strain comes, the edge turner is used to fold over the edge making a strong binding or seam, but when sewed to the body of the goods, afiat seam is desired, thus a movable edge turner is used which may be thrown into and out of operation while the sewing is progressing.

While the invention is of especial value in connection with overseaming machines, where the edge is bound by the overseaming stitches, and where too, a development of'the Specification of Letters Patent. P t t d D 19, 191% Application filed January 1, 1912. Serial No. 669,397. 7

" practical utility, yet it will be understood that we do not wish to be limited to any special type of machine.

An object of the invention is to provide I machine. is in operation.

A. further object of the invention is to provide means for movlng an edge turner, as above stated, wh ch means compr1sesdevices for automatic'allymoving the turner in one direction. V

The invention also consists in the special.

arrangement of said turner,that is, between;

the trimmer and needle; in the special man- .ner of moving. said turner, that is, diagonally out from the line of the seam; in its combined use as a stitch-finger as well as an edgeturner; and in various other matters all as hereinafter described andreferred to in the appended claims.

an overseaming machine of the type above referred to, embody ng our inventlon; F g. 21s a vlew partly 1n section, taken through the machine parallel withthe line'of feed, being in effect a view of the cloth plate with the operating parts of the present invention attached thereto, andshowing the presser foot, needle, and parts above the cloth plate; Fig. 3 is aplan view of the cloth plate and throat plate; Figs 4 and 5 are enlarged details of the throat plate, with the edge turner in difierent position respectively; Figs. 6 and 6 are views of the seams formed by the turner and stitch forming mechanism, when the former is in the respective positions shown in Figs. 1 and 5; Fig. 7 is a perspective view of the cloth plate'with our invention applied thereto; Fig. 8 is a detached view of theparts of the turner; Fig. 9 is a detail of the attachment of the turner shank to its operating lever; Fig. 10 is a plan view of a modified construction of turner showing it of sufficient length to act as a stitch finger; and Fig. 11 is a view similar to Fig. 2, showing the normal position of theturner as in position close .toithe throat plate. and folding the-material, while in the other figures the normal position isits ineffective position.

In these drawings, 1 represents the bed plate of a sewing machine of the type above referred to, having the removable cloth plate 2-, the goosenecli 3, the swinging cover ehth'e trimming anechanism 5, the needle lever 6, needle bar 7, presser foot 8, and thread carying loopers and 10 cooperating to make an overedge stitch ofthe well known type. The removable cloth .plate 2 has secured to it by screws, the throat plate .11, formed with the usual openings for the passage of the feed dog 12, and provided with the needle opening, the cutout portion for .the passage of the looper, and the stitch finger or tongue 13,.0ver whichthelooper 9 lays its thread.

Slidably attached to the inner face of the eloth-plate-by the slot and screw connection 14 and 15, is the bar 16 havingthe adjustable stop blocks 17 thereon, to limit the sliding movement of the bar 16 on the screws .15. This sliding bar 16 has at oneend the curved arm 1S, pivotally cormected to theendot the arm 19 of a lever, the other-arm 20 of which has asoeket in which is-secured-by aset screw .23, the shank 21 of the edge turner 22. The slide bar 16 has-on its lower edge a ball lug .24- .iitting in'a socket 25 on theupper end of the vertical arm .26 of a pivoted bell crank lever, the horizontal arm 27 of which has attached to it a ch ain 28 leading down to the usual.springspressed foot treadle, not shown. A spring 29 attached to the arm 26 and the cloth plate, keeps the slide bar normally in the position shown in Fig. '1, and the edge turner operated thereby in the position shown in Figs. 1, 3, and 4:, that is, in position where it will not'turn the edges of the goods shown in Fig. 6 but permit them to be sewed with the :fiat seam shown in Fig. -6. By pressure on the treadle, the slide bar is moved to the positionshown in Fig. 7; the movement is imparted to the lever 19, 20; and the turner 22 swings into theline of the seam in a diagonal direction, .to the position shown in Figs. 5 and 2'7, when the seam shown in Fig. 6 will be formed.

The thread carried by the looper 9 is laid over the turner and slips oi? the same onto the stitch finger 18. in Fig. 1 0, the turner :22 is lengthened and narrowed to form a double thickness of the stitch finger with the stitch finger 13.

In Fi g. 11 an arrangement the reverse of that shown in Figs. 1 and f? is illustrated, that is, the normal position of the slide bar 16 is such that the turner is up against the throat plate and turns the edge of the fabric, the spring 29 being vertical and operating on the arm 27.

t'orming mechanism; that it .may act to a greater'or less extent asa stitch finger sup plemental to the stitch finger in the throat plateythat all its operating parts are below "the work support, the turner itself simply swinging into a position extending over the top of the throat plate; andthat when in effective positionit lies between the trimmer and the needle and turns tl e edge of the material over onto the body of the material, within the limits of the ov redge stitching mechanism.

In the use 0'5 the arrangement shown in Fig. I10,.and by making the tongue extension of the edge turner cit-sufficient length, it will vbe noted that it will be possible to dispense with the tongue on the throat plate. lit will also be noted in this connection, as well as in the construction of the edge turner shown in the other figures ofthe drawings, that the turner .makes a housin or casino coverin b a to the throat plate tongueon both sides thereof, thereby protecting said throat plate tongue against being struck by the needle in its descent. 1

As shown in Figs. l and 5,the throat plate is provided with-a projecting ledge 30, upon which the edge turner rests when thrown into operative position, thereby supporting the same.

Various modifications andchan'ges may be 1:

made in the construction of the parts of this device, without departing from the spirit of our invention.

Having thus particularly described our invention, what we claim as new and desire c of the material, and means for rendering said folder eifectiveor ineffective.

2. A sewing machine including in combination, feeding mechanism, overedge stitch forming mechanism, a device for engaging the edge of the material and turning the same over on to the body of the material within the limits of the overedge stitch forming mechanism, said device being disposed adjacent the stitch forming mechanism, whereby said folded edge is inclosed by the stitch forming mechanism as it leaves the folder, and means under the control of the operator I for moving said device into and out of effective operation. A

3. A sewing machine including in comr by the stitch forming mechanism-as it leaves same over onto the body of .the material bination, feeding mechanism, overedge stitch forming mechanism, a device for-engaging he edge of the material :andturningjthe within the: limits of ,the overedge stitch formlng mechan1sm,-sa1d devicc'belng disposed adjacent the stitch forming mechanism, whereby said folded edge-is inclosed he folder, and means under the control of the operator for movmg said device diagonally'into and out of the l1ne of seanr 1 4. A sewing machine including in combination, feeding mechanism, overedge stitch formmg mechanism, a device for engaging the edge of the material and turnlng the within the limits of the overedge'stitch forming mechanism, whereby said folded edge is inclosed by the stitch forming mechanism,

and means under the control of the operator for moving said device diagonally into and out of. the line of seam,lsaid device also acting as a stitch finger over which the stitches are formed.

5. A sewing; machine including in combination over edge stitch forming mechanism,

7 ing and folding the edge of the material V overedge stitches, and means for rendering] said folder and stitch finger effective or in-I effective during the operation of the maneath the stitches.

stitch fingerinto and'out of theline of seam i diagonally thereof, whereby said folded edge is covered by the overedge stitches, and" a folder for-turning over the edge of the material on to the body thereof, said folder being disposed relative to the stitch forming mechanism whereby the stitches are laid over said folder and are fed off fromthe folder on to the folded edgeof the fabric, and meansfor moving said folder from-effective to 'inefiective position, including manually controlled means for movingth'e folder in'one direction, and automatic means for moving the folder in the other direction.

I 6. A sewing machine including in combination,feeding mechanism, a throat plate,

overedge stitch forming mechanism,a combined folder and stitch finger, said folder extending above the throat plate for engagwhereby said folded edge is covered by the chine. r 7

7. A sewing machine including in combination, feeding mechanism, a throat plate, overedge stitch forming mechanism, of a combined folder andstitch finger, said folder extending above the throat plate for engaging and folding the edge of the material, means for moving said folder and means for rendering said folder and stitch finger effective or ineffective during the operation of the machine. 7 f

8. A sewin machine including in combination, feeding mechanism, overseaming stitching mechanism, a folder for turning with the fabric.

thereof, 1 said :folder ,loeing disposed relative [to the stitching mechanism, whereby stitches same" over on torthe body of the material ng: in combi- 7 over the edge of the material onto the body I thereof, said folder being disposed relative to the stitching mechanism, whereby stitches are laid over the folder and arev fed off of the same onto thev folded edge of the mate- 1 rial, and means for movingthe folder into and out of operative position relative to the v stitching mechanism without stopping the stitching mechanism.

:10. In a sewing machine and in co'mbi nation, a devicefor turning the edge of the fabric during itspassage to the stitch-form-- ing device, said device being provided with means to protectthe turned edge from con- I tact with the thread during the period of-v time thatthe turning action of the fabric i takes place, and means for moving said device into and out of operative position without stopping the machine.

' 11. In a sewing machine, a needle, a trim mingdevice for the edge ofthe fabric, a

device in rear of said trimmer and in 'advance of said needle," said device being formed with a recess in the' side thereof adj a centv said needle, which recess extends from move said device into and out of engagement 12. In a sewing machine and in combina- I "tion, a stitchsforming, mechanism, a tongue and a device for forming the stitch over said 1 gtongue, a sccondtongue mounted in a plane above said first tongue, and meanswhereby V p out of saidloperative position, said m0ve j mentvbeing toward thefront of the machine one of said'tongues can-be thrown into and,

ion

front to rear of said device, and means to.

whereby said tongue is withdrawn from b'e- I 18. In a sewing machine and in combination, stitch-forming mechanism including.

a plurality of tongues over, which the stitch is laid 'duringthe formation of the seam, v

means located upon the opposite sides .of

said tongues to deposit a thread over the 1 same, and means whereby vone of said tongues if can be withdrawnv from said seam at the will of the operator and while the, machine plurality of tongues over which the stitch is laid duringfthe formation of the seam, means for forming the stitch overjsaid tongues,*'

and means whereby one of said tongues can

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