US1544484A - Embroidery-couching machine - Google Patents

Description

G. C. ROGER EMBROIDERY GOUCHING MACHINE Filed June 21. 1923 June 30, 1925.

2 Sheets-Sheet l June 30, 1925.

G. cl ROGER EMBROIDERY COUCHING MACHINE 2 Sheets-Sheet 2 Filed June 21. 1923 Patented June 30, 1925.

UNITED STATES GABRIEL OASIM IR ROGER, OF BORDEAUX, FRANCE.

EMBROIDERY-COUCHING MACHIN Application filed June 21, 1923. Serial No. 646,882.

To all whom it may concern:

Be it known that I, GABRIEL OASIMIR ROGER, a citizen of France, and a resident of Bordeaux, Gironde, France, have invented certain new and useful Improvements in Embroidery-Couching 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 to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The present invention relates to an embroidering machine for couching or sewing a thread, cord, festoon or the like to a fabric, the line of stitching holding the cord, festoon or the like being zig-zag across the cord, but being straight on the underside.

The invention consists of mechanism for shifting the decorating cord or the like,first to one side and then to the other of the line of stitching.

Fig. 1 refers to a form of construction.

Figs. 2 and 3 are respectively a plan view, partly in section of Fig. 1, and a side view.

Figs. 4 and 5 are detail views.

In the arrangement which is shewn in Figs. 1 to 4, the box 1 which can be secured to the table 2 of the usual sewing machine having a needle bar m carrying a needle 0 and a presser foot 24. The box 1 contains an anchor or lever mechanism constituted in the following manner: Between the sides of the box 1 is mounted so as to be capable of revolving the axis 3 of a ratchet wheel 4 connected with a pinion 5 whose number of teeth corresponds to half the number of the teeth of the ratchet wheel 4. A pawl 6 engaging the teeth of the ratchet wheel 4 is pivoted at 6 to the lever 8 and is held in mesh with the teeth of the ratchet wheel 4 by a spring 9 which is also secured to the lever 8. The lever 8 is secured, by one end, so as to be able to revolve loosely, to the axis 3 while the other end is terminated by a fork 10 the branches of which engage a roller 11 fixed by a screw to the needleholder m of the sewing-machine. A second pawl 12 carried by a special plate 13 secured to the box or case 1 or simply pivoted between the sides of the said box is also engaged with the teeth of the ratchet wheel 4 like the pawl 6 and is held in mesh by a leaf spring 7 bearing against the abutment 14 formed by the part 13 or mounted on the latter or on one side of the box 1.

The anchor-lever 15 pivoted upon an axis constituted by a screw or other part 16 connected with the plate 13 is arranged in such a manner that its pallets 17, 18 can alternatively gear into the teeth of the pinion 5, Figs. 4 and 5. The lower end of the anchor lever 15 is provided with a notch forming two shoulders 19, 20. These shoulders bearone after the other against the tappet 14, thereby limiting the displacement of the lever 15.

The other end of the lever 15 is connected with the lever 22 by means of a link of adjustable length made of two parts 23 and 28 The arm 22 guides and lays the thread which is to be confined by the needle thread and acts to alternately move the embroidery thread to the right and left of the line of stitching in a zig-zag manner; 'it is pivoted at 28 to a support 25 fixed, through any suitable fastening means, to the presser foot 24 or formed in one piece with the latter. The lower end of the lever 22 is suitably bent over and recessed so as to allow the passage of the needle c,"it is provided with a hole or eye 9 through which passes the thread 6 which is to be confined. The thread 5 can if required be guided by passing through another, hole or eye 9 provided in the middle part of the lever 22.

A spring 29 secured to the bottom of the box 1 through any suitable means bears against a lug 26 of the anchor lever 15 by means of its end 27 bent in a V-shape and maintains the said lever in the position to which it has been brought by the pinion 5 (Figs. 3 and 4).

The machine being in the position as shewn in Fig. 1, the needle-holder m is at its high dead point. In moving down in order to form a stitch, the needle-holder m drives along the lever 8 by means of the roller 11. The pawl 6 slides from under the tooth under which it is engaged so as to come under the following lower tooth without turning ratchet wheel 4, the same being retained by the pawl 12 arranged at its lowerpart. In raising again, the needleholder lifts the lever 8 which, through the pawl 6, causes the ratchet wheel 4 to turn and advance one tooth and with it the pinion 5. V

The tooth of the pinion 5 which is in contact with the pallet 18 of the lever 15 (Fig. 4) pushes in its displacement the said pallet 18 which causes the lever 15 to rock, the movement of this lever being limited by the shoulder 20 bearing against the tappet 14. The lug 26 lifts the spring 29 and the lever 15 remains fixed in its new position, as shewn in Fig. 5 of the drawing. In this position, the pallet 17 has come to a position between two teeth of the pinion 5, while the pallet 18 is entirely released therefrom.

As a consequence of this oscillating 1110- tion, the extension 21 of the lever 15 act-- ing through the medium of the link 23,

" 24, has caused the lever 22 to rock about its pivot 28 (see Fig. 5) which has for effect to move to the left the needle the eye g which was previously to the right of same, and with it the thread I). The needleholder m moving down again, the needle 3 makes on the right of the thread 7) a stitch as it has made before on the left of said thread, and in its down motion, the pawl 6, of the lever 8 has engaged itself under the following tooth of the ratchet wheel t so that in moving up again the lever 8 will cause the said. ratchet wheel 4 to move one tooth. The pinion acting now under the pallet 17' drives the lever to the position the .same occupied previously and which is represented in Figs. 1 and 4 of the drawing, in returning the eye 9 of the lever 2:2 and withit the thread Z) to the right of the needle 0, the cycle then beginning again.

The plate 13 can be advantageously made to move about the axis 3 so as to allow the displacement of the whole of the parts according to the motion of the needle-holder and the position of roller 11. This displacement allows adjustment of the apparatus at the beginning of the sewing opera tion. An arcuate slot concentric to the axis 3 shown in dotted lines in Fig. l is provided in the box or case connected with the frame of the machine 1 and a milled button is screwed. upon the axis or pin 16 which is externally extended, in order to steady the plate 13 in connection with the box or case 1.

hat I claim is 1. The combination with a sewing machine sewing a straight line of stitches and having a needle-bar and presser foot; of a pivoted lever for laying an embroidery cord, an anchor mechanism, a link connecting said mechanism and lever, and means to operate said anchor mechanism upon the formation of each stitch to vibrate said lever across the line of stitching.

2. The combination with a sewing machine sewing a straight line of stitching and having a needle bar and a presser foot; of a lever pivoted to thepresser foot for laying an embroidery thread, an oscillating anchor, a link connecting said lever and anchor, a second lever oscillated by the needle bar, a pawl carried by the latter lever, a ratchet wheel engaged by said pawl, a pinion rotated by the ratchet wheelwhose teeth are alternately engaged by said an chor, and a box containing said anchor and. wheel and arranged for connection to the base plate of the sewing machine.

In testimony that I claim the foregoing as my invention, I have signed my name hereto.

GABRIEL oiisnnn noenn.

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