US1135421A - Presser-foot. - Google Patents

Description

R. G. WOODWARD.

PRESSER FOOT.

APPLICATION FILED SEPT. I8. I909.

mmfifimw Patented Apr. 13, 1915.

Witnesses v WM THE NORRIS PETERS CO.. PHOTCJJTHQ. WASHINGTON, D. C

snares raarnnm RUSSEL Gr. WOODVJARD, 0F "WAUKEGAN, ILLINOIS, ASSIGNGB T0 UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS,- A CORPORATION 01? ILLINOIS.

PRESSER-FOOT.

iaaaaei.

Application filed September 18, 1909.

To all whom it may 0011001 11 Be it known that 1, Russian G. VVoonwARD, a citizen of the United States, residing at lVaukegan, in the county of Lake, State of Illinois, have invented certain new and useful Improvements in Presser-Feet, of which the following is a description, reference being had to the accompanying drawing, and to the letters and figures of reference marked thereon.

The invention relates to new and useful improvements in presser feet for sewing machines, and has for an object to provide a presser foot which is especially adapted to cooperate with an upper feed dog, and which is provided with spaces within which said feed dog may operate.

A further object of the invention is to provide a presser footwhich is especially adapted to cooperate with an upper feed dog, which foot is pivotally supported so that said foot may rock to enable the foot and the feed dog to pass more rapidly over cross seams or the like.

In the drawings which show by way of illustration, one embodiment of the invention; Figure 1 is a side view of my improved presser foot showing its relation to the upper feed dog. Fig. 2 is a sectional View ild lltl through the foot, also showing its relation to the feed dog. Fig. 3 is a view similar to Fig. 2, showing the foot as rocked when passing over a cross seam. Fig. a is a bottom view of the foot. Fig. 5 is a top view of the same. Fig. 6 is a side view showing the foot rocked and the yoke broken away to show the slot to permit adjustment of the roller. Fig. 7 is a bottom plan of the end of the feed dog. I

My improved foot comprises the usual supporting shank 1, which. is secured to the lower end of the presser bar. The presser foot is composed of side portions 2, 9., which are connected at the forward end by across bar 3, and at the rear side by a cross plate 4:. A pin 5 is secured to the sides 2, 2' of the foot and extends through an opening formed in the shank 1, and serves as a means for pivotally connecting the foot proper to the shank. The shank 1 is provided at the rear side thereof, with a recess 6. A cross bar 7 extends from side to side of the foot, and is located in the recess 6.

When the foot is in the position shown in Figs. 1 and 2, the cross bar 7 engages the Specification of Letters Patent.

foot.

Patented Apr. 13, 1915.

SeriaI No. 518,333.

upper wall of the recess 6, and limits the upward movement of the rear portion of the My improved foot is also provided with a central supporting rib or bar 8,'which is secured to the cross bar 3, at the forward end and to the cross plate 1, at the rear end. Said supporting rib or bar 8 is provided with a needle slot 9. This rib is located centrally of the foot and between the rib and the side portions 2, 2, are two parallel spaces which receive the projecting prongs or spaced members 10 of the upper feed dog.

The upper feed dog is practically carried. by an arm 11, and is pivotally connected thereto at 12 so that it may be swung about its pivot by means of a suitable spring 13.

As a means for limiting the upward move ment of the feed dog, I have provided a roller 14 which bears on the upper face of the feed dog. Said roller 1 is provided with laterally projecting bearings 15, which extend through a slot 16 formed in the-side portions 2 of the foot (see Fig. 6), and are j ournaled in a yoke 17.

The yoke 17 is pivoted at 18 to the side members of the presser foot. The cross plate 4:, is provided with an opening 19 which received a stop screw 20, which stop screw is threaded into the yoke 17. The roller 14; is located slightly in front of the pivotal support 5 for the presser foot. The upward movement of the feed dog, through the action of the spring 18, oscillates the yoke 17 about its pivot 18, until the head of the stop screw 20 engages the cross plate 4. This limits the upward movement of the roller and by adjusting the stop screw, the position of the roller may be varied, and in turn the reciprocating position of the feed dog adjusted.

-When across seam passes underneath the forward end of the foot as shown in Fig. 3, said foot is tilted and as the roller 14 is forward of the pivotal support of the foot, said roller will be likewise slightly raised, thus allowing the feed dog to lift and pass up on to the cross seam. As soon as the cross seam passes underneath the pivotal support of the foot, said foot will at once swing back to its normal position. The central rib or bar 8 of the foot serves not only as a means for properly holding the material at the stitching point, but said rib will also engage the interlocked threads which are formed when there is no material in the machine, and will feed the threads, thus enabling the machine to chain off or chain between articles being stitched.

Having thus particularly described my invention, what I claim as to secure by Letters Patent, is V l. A presser foot comprising a shank, a foot port-ion pivoted to said shank, said foot portion including spaced side members adapted to receive therebetween an upper feed dog, and means carried by said side members in advance of the pivot thereof adapted to engage the upper face of the feed dog and hold the same from vertical movement relative to the presser foot portion.

2. A presser foot comprising side members, a roller located intermediate said side members, and a central rib spaced from said side members, and located centrally of the foot and beneath said roller.

3. A presser foot comprising side members, a bar at the front end thereof connecting said side members, a plate at the rear end of the foot connecting said side members, and a rib located centrally of the foot, and connected to said bar and said plate said rib having a needle slot formed therein and means carried by the presser foot for holding the upper feed dog from vertical movement relative to the presser foot, said means being disposed above the central rib of the foot.

A presser foot comprising side members, a yoke pivoted to' said side members, roller carried by said yoke, and means for adjusting the position of said yoke about its pivot.

5.21 presser foot comprising side members, a yoke pivoted to said side members, 'a cross plate connecting said side members and having an opening formed therein, said yoke extending underneath said cross plate and carrying a stop screw extending up through said opening and a roller carried by said yoke.

6. A presser foot comprising a shank, a foot portion pivoted to said shank, a roller carried by said foot portion in advance of the pivot thereof and adapted to engage the upper face of the feed dog and hold the same from vertical movement relative to the foot portion.

7. A presser foot comprising a shank portion, a main fabric-engaging portion pivoted to said shank portion, a roller carried by said main portion and adapted to engage the upper face of an upper feed dog, and

new and desire 'plate and having a stop screw neans for adjusting the position of said roller relative to said main portion.

8. A presser foot comprising a shank portion, a main portion pivoted to said shank portion, a roller carried by said main portion and adapted to engage the upper face of an upper feed dog, means for adjusting the position of said roller, and means for limiting the movement of the presser foot about its pivot.

9. A presser foot comprising a shank, a foot portion pivoted to said shank, said foot portion including spaced side members adapted to receive therebetween an upper feed dog and a roller carried by said side members in advance of the pivot thereof and adapted to engage the upper face of the feed dog and hold the same from vertical movement relative to the presser foot.

10. A presser foot comprising a shank portion, a main portion pivoted to said shank portion, a yoke pivoted to said main portion, a roller carried by said yoke, and located in front of the pivot for said foot, said foot having a cross plate at the rear side thereof in which is formed an opening, said yoke extending underneath said cross extending up through said opening.

11. A presser foot comprising a shank, a foot portion pivoted to said shank, said foot portion including spaced side members adapted to receive therebetween an upper feed dog and a roller carried by said side members in advance of the pivot thereof and adapted to engage the upper face of the feed dog and hold the same from vertical movement relative to the presser foot, and means whereby said roller may be adjusted.

12. A presser foot including in combination, side members, a supporting shank therefor, means for connecting said side members to the shank, whereby the presser foot may be tilted, a member located between the side members and movable relative thereto, for cooperating with an upper feeding member to prevent vertical movement of said upper feeding member relative to the presser foot, and means for adj usting the position of said movable member.

In testimony whereof I afiix my signature,

in presence of two witnesses.

C. MoNEIL, F. S. NORTH.

.Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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