US427561A - Presser-foot for two-needle sewing-machines - Google Patents

Description

(No Model.)

J. F. ELLIOTT. PRBSSER FOOT FOR TWO NEEDLE SEWING MAGHINES.

No. 427,561. Patented May 13, 1890.

UNITED STATES ATENT FFICE.

JOHN F. ELLIOTT, OF CINCINNATI, OHIO, ASSIGNOR TO THE SINGER MANU- FACTURING COMPANY OF NE\V JERSEY.

PRESSER-FOOT FOR TWO-NEEDLE SEWING-=MACHINES.

SPECIFICATION forming part of Letters Patent No. 427,561, dated May 13, 1890.

Application filed December 20, 1889. Serial No. 334,349. (No model.)

To all whom it may concern: d, the auxiliary presser and needle guard and Be it known that I, JOHN F. ELLIOTT, a citiguide (1', the foot portion of which is, in the zen of the United States, residing at Oincinpresent instance, provided with two diagonati, in the county of Hamilton and State of nally-arranged holes or eyes (Z for the passage 5 Ohio, have invented certain new and useful of the two diagonally-arranged needles I). Improvements in Sewing-Machine Pressers, The auxiliary presser d is held down by an of which the following is a specification, refindependent coil-spring d surrounding the erence being bad therein to the accompanying presser-bar 0, between the lifting-bracket c drawings. and the top of said sleeve, said spring thus 10 My invention has for its object to provide providing for vertical movements of the auxa sewing-machine having a roller-presser with iliary presser inde iiendently of the main or an auxiliary presser which is vertically movroller presser, the latter being held down by able independently of the main or roller the usual coil spring 0 above the liftingpresser, and which serves as a guard and guide bracket. The foot portion of the presser d 6 5 r5 for two closelyplacedneedlee and asastripper is arranged in close proximity to the main or to prevent the work from beinglifted, as this roller presser, and is preferably cut away would cause a failure of a proper formation slightly 011 one side, so that it may partially of loops of needle-thread for the point of the overlap the flan ge c of the said roller-presser; shuttle or looper to enter. My independent butthe main portion of the bottom of said 2o presser is preferably carried by a sleeve surfoot will still be flush with the bottom of said rounding the main presser-bar, and is yieldroller-presser. The overlapping part of the ingly held down by a spring surrounding said said foot is, however, slightly above the said bar and arranged between the said sleeve and flange 0 so as not to interfere with the free the lifting-bracket. rotation of said roller-presser. 25 In the drawings, Figure 1 shows a portion As hereinbefore stated, a roller-presser is of a Singer sewing-machine with my inthe form of presser preferably used in sewvention applied thereto, the cap or face-plate ing finelyfinished leather, as it does not of said machine being removed. Fig. 2 is a scratch or mar the surface thereof when pressfront end view of. the same with the main or ing thereon above the feed-dog; but owing to 8o 0 roller presser and most of its carrying-bracket the fact that the pressing-surface of a rollerremoved. Fig. 3 is a partial section on line 3 presser is continually changing it necessarily 3, Fig. 2. Fig. 4 is a detail section of the presses on the work outside of the needle or auxiliary and main pressers, and Fig. 5 is a needles, and cannot be made to surround the detail perspective view of the auxiliary latter as an ordinary foot-presser does. Thus 8 5 35 IJ 'GSSG in sewing leather the work will not always be A denotes the sewing-machine head, and B properly stripped from the needles as the latthe needle-bar, provided with two needles Z), ter rise, and if the Work rises slightly with the arranged diagonally to the line of feed, so as needles loops for the shuttle to catch will not to form two closely-adjacent rows of stitches, be properly formed and imperfectwork will re- 0 as is often desired in stitching the Vamps of sult, this trouble being greater when two diagshoes and other work. onally-arranged needles to form parallel rows 0 is the main presser-bar, to the lower end of stitches are employed, one of said needles of which is attached a well-known form of being farther from the roller-presser than the bracket 0, which carries the roller-presser 0, other; but by the employment of my auxil- 45 which is the form of presser preferably used iary foot-presser, which does not necessarily for leather-work, as it does not mar or scratch form a resistance-pressure for the feed, (for the surface thereof. Surrounding the lower the reason that the pressure of the rollerpart of the presser-bar O, and fitting closely presser is sufficient for that purpose,) and inaproperaperture in thelowerbearing-lugct which therefore does not bear on the work 50 of the head A, is a sleeve or tubular barD, to hard enough to scratch or mar the surface of the lower part of which is attached,bya screw the leather, this difficulty is avoided, my

auxiliary presser being constructed and arranged to bear constantly on the work when in operation beside and closely adjacent to the main presser, or, in other words, not being merely a needle-guard moving vertically with the needles, although serving in a measure to guard the needles when they are about to enter the work. The auxiliary presser is lifted with the main presser by reason of the engagement of some part of the latter with the former. This engagement is provided for in the present instance by arranging the shank or attaching part c of the roller-carryin g bracket 0 immediately beneath the lower end of the sleeve D of the auxiliary presser cl and the shank of the said presser, so that when the main presser is raised from the work by the lifter E the auxiliary presser will also be raised; but as these parts of the auxiliary presser are above the parts of the main presser, by which they are engaged to be lifted, it results that the said auxiliary presser is free to have a vertical movement independently of the main presser.

The main and auxiliary pressers are arranged side by side and both bear on the work closely adjacent to the needles. The feedpoints are beneath the main or roller presser, as denoted by the dotted lines in Fig. 1, but do not extend beneath the auxiliary presser. Thus if the auxiliary presser,which is rigidly attached to its bar, were not movable vertically independently of the main presser, a thicker portion of the work coming beneath the former would raise the latter, so that the feed would fail to act, and thus imperfect sewing would result; but owing to its independent spring my improved auxiliary presser will permit of the passage beneath it of portions of work thicker than are passing beneath the main or roller presser without disturbing the action of the feed. It thus results from my invention that in sewing with two needles, one of which is farther from the main presser than the other, the work is properly held down or stripped from the needles as the latter rise, so that their loops are properly thrown out,while thetwo closel y-ad j acentand sii ghtlytapering n eedle-holes in the auxiliary presserfoot adapt the latter to serve as a guide and guard for the needles to cause them to maintain their proper positions and prevent them from fouling or interfering with each other.

I am aware that it is not new to provide a sewingmachine with main and auxiliary pressers; but I believe that I am the first to provide such a machine with an auxiliary presser which bears constantly on the work when in operation beside and closely adjacent to a main or roller presser, which is movable vertically independently of the main presser, and which is also adapted to be lifted by the latter.

Having thus described my inven tion, -I claim and desire to secure by Letters Patent 1. In a sewing-machine, the combination, with a needle-bar carrying two closely-adjacent needles, of a main presser-bar O and roller-presser 'c,a tubular bar or sleeve surrounding said bar 0, the auxiliary foot-presser (Z, carried by the said tubular bar or sleeve and having the needle-guiding holes (1 said footpresser bearing constantly on the work when in operation beside and closely adjacent to the said roller-presser c and around said needles and independent springs for depressing the said roller and auxiliary pressers.

2. In a sewing-machine, the combination, with a needle-bar carrying two closely-adjacent needles, of a main roller-presser, an auxiliary foot-presser bearing on the work beside and closely adjacent to the said main rollerpresser and around said needles, and means for lifting said roller and foot pressers together.

3. The combinatiomwith the roller-presser having the flange c of the auxiliary presser cut away slightly on one side and arranged adjacent to said roller-presser with its cutaway portion overlapping said flange.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN F. ELLIOTT.

W'itnesses:

M. R. WAITE, MARGARET MeGREGoR.

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