US1118092A - Sewing-machine. - Google Patents

Description

R. G. WOODWARD.

$BWING MACHINE.

APPLICATION FILED AUG. 6, 1909.

Patented Nov.

'2 SHEETS--SHEET'| WW" comm utto'uuu R. G. WOODWARD.

SEWING MACHINE.

APPLICATION FILED AUG. 6, 1909 Patented Nov. 24, 191

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

BUSSEL .G. 'WOODWARD. OF CHICAGO, ILLINOIS, ASSIGNOR TO UNION MACHINE COMPANY, OF QHICAGO. ILLINOIS. A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

Specification of Letters Patent.

Patented Nov. 24, 191 4.

Application filed August 6, 1809. Serial No. 511,698.

T 0 all whom it may concern:

Be it known that I, RUSSEL G. Woonwxno, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and u ful Improvements in SewingMachmes, of which the followi is a. description, reference being had to t e accompanying drawing, and to the letters and figures of reference marked thereon.

The invention relates to new and useful improvements in sewing machines, and more especially the presser foot for a sewing machine.

An object of the invention 15 to provide a presser foot which will proper-1 cotiperate with a feeding mechanism, w ereln said feeding mechanism has an auxiliary art located? one side of and in advance 0 the stitching mechanism.

A further object of the invention is to provide a presser foot with ielding side members, one of which yiel s vertically, while the other yields vertically and also rocks about an axis.

These and other objects will in part be obvious, and will in part be hereinafter more fully described.

In the drawings, which show by way of illustration, one embodiment of the invention,-Figure 1 is a front elevation of a machine with my improved presser foot thereon. certain of the parts being in section; Fig. 2 is a. top plan view with the work plate removed, and showin in dotted lines the position of the presser cot; Fig. 3 is aside view of the presser foot. showing in detail the position of the auxiliary part of the feed dog relative to the presser foot; Fig. 4 is a sectional view, showing the vertically yielding part; Fig. 5 is a top plan view of the presser foot; Fig. 6 is a bottom view of the same; Fig. 7 is a section centrally through the presser foot; Fig. 8 is a section showing the vertically yielding and oscillating part.

.The sewing machine, as herein shown,

consists of a bed plate 1, an overhanging arm 2 on which is mounted a needle lever 3, which is oscillated by a link 4 from the main shaft. Said needle lever reciprocatcs a needle bar 5, which carries, as herein shown, three needles 6. A looper 7 beneath the work support 8 cooperates with all three needles. ThreadJaying fingers 9 and 10 are herein shown, which operate to lay a thread back and forth in front of the needles, so

that said thread will be stitched to'a fabric.

The feeding mechanism in the. present illustration of the invention, includes a. feed bar 11, carrying a main feed dog 12. Said feed her is reelprocated back and forth by means of a link 13, which is connected to a. crank on the end of the main shaft 14. The main feed bar 11 carries an auxiliary feed dog 15, which moves back and forth with the main feed bar 11, and is given a differ ential movement from the main shaft 14. The above parts are all shown and described in the atent to Durand, N 0. 901,792, Octo-' ber 20t 1, 1908, and form no part of the pres-' ent invention. It will be seen that the auxiliary feed dog located at one side of, and in advance of the stitching mechanism. I

' My invention resides in a presser feet which will properly coiiperate with a main feed dog and an auxiliary feed dog located as above noted. The presser foot, as herein shown, consists of the shank 16, which is secured to the lower endof the usual presser bar, which is yieldingly held depressed, and

which may be raised when desired, b means of the usualcam lever or knee shi t. The shank of the press-er foot 16 carries a rigid central portion 17 (see Fig. 7). Said central portion is cut away as at 18 to form the needle slot. Fingers 19 project into the needle slot 18 and serve in he usual way as a means over which the thread may be laid by the threadduying fingers 9 and 10. The presser foot is provided on one side with an auxiliary part 20. The shank of the presse'r foot 16 is slotted to receive an upwardly projecting part 21, formed rigidly with the auxiliary part 20. A post 22 is rigidly mounted on the part 21. and slides in a suitable opening in the shank. The part 21 is cut away at 23. and a pin 24 carried by the shank 16 extends through the opening 23, and serves to limit the downward movement of the auxiliary part 20. The auxiliary part 20 is yieldingly pressed downwardly by a spring 25, which bears on the upper end of the post 22. The spring 25 is secured to the presser foot by means of a screw 26.

On the other side of the mair portion 17 of the presser foot is an auxiliary presser part 27. Said presser part 27 fits in a slot formed in the shank 16, and carries an n wardly projecting post 28 which extends through the opening 29 formed in the shank an opening 30 which receives a stop pin 31,

arried by the shank 16 of the presser foot. his opening 31 serves to limit the downard movement of the auxiliary part 27. A ring 32- which may be secured by the screw 2%, extends forward of the shank 16 of the presser foot and bears upon the upper surface of the auxiliary part 27, as shown in Figs. 3 and 5.

The forward end of the spring is deflected, as at to give the same a better bearing surface upon the auxiliary part. Thespring 32 normally holds the forward end o-f'the auxiliary foot 27 thrown downward, so that the post 28 engages the forward side of the opening 29. Said spring will also hold the entire auxiliary portion 27 forced downward, so that the slot 30 engages the stop pin 31. The slot 30 is so shaped that if pressure is brought to bear directly under the entire auxiliary foot 27, the whole part will move bodily vertically against thetension of the spring 32. I I

If pressure is brought against the forward end of the auxiliary foot '27, it will raise the forward end. The post 28 will tilt in the slot 29, and the slot 30 will allow the auxiliary part 27 to swingabout an 'axis. My improved foot is so' located relative to the feeding mechanism herein shown, that the auxiliary part 27; extends over and cooperates with the auxiliary feed dog :15, while the main part'of the'presser foot and the auxiliary part 20 will cotiperate with the main feed.

Both the auxiliary parts 20 and 27 extend slightly beneath the lower surface of the main portion 17, (see Fig. 7). The purpose of this is to allow the auxiliary parts to have an independent downward yielding movement, so that they can move below the lower surface of the main foot and properly guide and direct the fabric to the stitching mechanism. The threads which are led back and forth in front of the stitching mechanism, are engaged solely by the mainpart of the presser foot.

\Vhile I have show my presser foot as applied to a sewing machine having a dill'erential feeding mechanism, it is obvious that the presser foot may be used in other machines, and in connection with a feeding mechanism of a dififerent character, if so desired.

I do not herein claim the combination of the presser foot with differential feeding mechanism as that-is claimed in my application (a division oi 'this) filed theth day of April, 1914, Serial No. 829,498.

H aving thus described my invention, what I claim as new and-desire to secure by Let ters Pate'nt,is:-I 1.' A presser foot including-in combination a main portionyan auxiliary portion located on one side thereof, means for supporting said auxiliary portion, sothat it may yield vertically bodilyand have a pivotal movement also, a second auxiliary poi,- tion located-on the other side ofsaid' main portion, and means for supporting said second auxiliary portio so that-it 'may yield vertically bodily;

2. A presser foot mciuuingin combine-i tion, a mainportion, an' auxiliary portion having a post sliding in 'asuitable opening in the presser foot shank, and having a horizontal opening with a pinicarried by the shank fitting in said openingand limiting the downward movement of the. auxiliary part, and aspring bearing upon said post to keep the auxiliary portion or foot, normally depressed, said stop pin also serving as a pivot 'for said. auxiliary portion. i

3. A presser foot including-in combination, a main-portion, an-auxiliary portion having a post sl-idin'giina suitable opening in the'presser foot shank, and having a horizontal opening with a pin carried; by the shank fitting in said opening,and limiting" Jthc downward movement of the-auxiliary part, and a spring hearing uponsaid post to keep the auxiliary portion or foot normally depressed, said stop pin also serving .as a pivot .for' said auxiliary portion, and a-second auxiliary portion having .a bodily vertical'movement In testimony whereof I aim; my signature, in presence of two witnesses.

I RUSSEL' e. WOODWARD.

\Vitnesses i CHESTER MCNEIL, \VAnoE. Wnrcrm=

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