US401776A

US401776A - Union

Info

Publication number: US401776A
Authority: US
Publication date: 1889-04-23
Anticipated expiration: 1906-04-23

Description

(No Model.)

J. W. DEWEES.

I SEWING MACHINE. No. 401,776. Patented Apr. 23, 1889.

N. PETERS. Fhcto-Lithvmphu Walhirggton, D C,-

UNITE Srarns Parent omens; I

JOHN W. DEXVEES, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE UNION SPECIAL SEIVING MACHINE COMPANY, OF NE\V YORK, N. 'Y.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 401,776, dated April 23, 1889.

Application filed January 30, 1383- Serial No. 262,399. (No model.)

To all whom, it may concern: my invention to enable the same to be under- Be it known that I, JOHN WV. DEWEES, of stood, the bed-plate being shown by dotted Philadelphia, county of Philadelphia, and lines and the presser-foot elevated. Fig. 2 is State of Pennsylvania, have invented an I1na section of Fig. l in the line 03 the upper 5 provement inSewing-Wlachines, of which the and lower threads being omitted. Fig. 3 is a 7 following description, in connection with the top or plan View of Fig. 1 below the dotted accompanying drawings, is a specification, line a. Fig. 4: is a top view of the presserlike letters on the drawings representing like foot, and Fig. 5 is a detail showing one of the parts. loopers detached to better illustrate the slot IO This invention has 'for its object the proleading into one of its eyes.

duction of a sewing-machine for sewing par- The main shaft A the base A, the rocking allel seams. frame D, the looper-carrier D, pivoted there- Priorto my inventionin allsewing-maehines on, the needle-bar A the take-up E, throwknown to me for sewing parallel seams the off E, guides E and springclamps G G I 5 needles have been set exactly opposite each are all substantially as in United States Patother in a line at right angles to the direction out No. 299,569, dated June 3, 1884, to which of the feed. In this class of machine, and esreference may be had, like parts being desigpeeially when sewing certain classes of matenated by like letters. rial-such as leatherthe material between The looper-carrier D, mounted loosely on 20 the two needles set exactly in line, as stated, is the stud-screw D and having a stud, 2, which liable to be pinched and broken out, especially is embraced by the box D at the front end of when the lines of stitching are close together, the connecting-rod D deriving its motion and so, also, when the needles are exactly opfrom the usual needle-bar-actuating lever, is posite the line of stitches cannot be brought also common to the said patent, so the said 25 close together except by using very fine devices need not be herein more fully deneedles, which are liable to be broken. I have scribed. The feed-bar B, having feed-points ascertained by experience that parallel seams B, are and may be as usual. may be stitched very closely and without In accordance with my invention theneedlebreaking or tearing the material and without bar is provided with two eye-pointed needles, 3o puckering the material between the seams a 6, each having its own thread a I). These provided the needles used to pass the threads two needles are out of line with relation to through the material are arranged in differeach other both in the width and length of out vertical planes both in the direction of the machine, and are placed diagonally with the width and length of the machine, or diagrelation to each other in the direction of the 3 5 onal to the direction of movement of the feed movement of the feed in feeding the material in moving the material over the usual bedover the usual cloth-plate, (shown by dotted plate or throat-plate through which the needles lines, Fig. 1,) or the said needles are in difand feed work. ferent vertical planes both in the direction My invention consists in the combination, and width of the machine. 0 40 with a sewing-machine with aneedle-bar hav- The presser-foot H, attached to the pressering two eye-pointed needles set in different bar H, is provided with two holes or passages,

vertical directions, both in the direction of a 19 for the needles to b.

the width and length of the machine, of two The looper-carrier D has connected .to it loopers arranged one behind the other in the two loopers, a 19 each supplied with a sepa- 45 direction of the feed of the material, and with rate thread, as a 19 and in practice, for cona looper-carrier, each looper co-operating with venience of threading, each of the said loopone of the said needles in the formation of ers will be slotted, as shown in Fig. 5 at 20.

parallel seams, substantially as will be de The looper a" co-operates with the needle (1 cribed. and the looper b with the needle I), and with 50 Figure l is a front side elevation of a suffithe needles placed as described it will be seen cient portion of a sewing-machine embodying that by moving the looper-carrier as in the said patent the two loops each operating with a single needle will make two lines of stitching parallel each to the other; but the stitches in one row will be made one or more stitches in advance of the stitches in the other row. By placing the n eedles out of line, as described, it will be noticed that the needles may be placed in Vertical planes very close together in the direction of the length of the machine; but by placing one needle, as the one 7), farthest from the operator, or in a plane back of that in which the other needle is set to move, in the direction of the width of the machine, the two needles are never so close together as to injure or break out the material between them, even when the seams are close together.

The machine herein described may be run by power and be used for stitching parallel seams very close together; but the lines of stitching, owing to the position of the needles, cannot have any abrupt bends without destroying the uniformity of distance in the seams; but in staying-seams for shoe-work and stitching stocking-legs, corsets, 850., the

seams are usually straight, or but slightly curved.

I do not claim two needles set in a line at right angles to the feed, as in United States Patent No. 344,493; but prior to my invention 1 am not aware that a needle-bar has been provided with two eye-pointed needles set oblique to axis of the main shaft.

In a sewing-machine, a needle-bar having two eye-pointed needles set in different vertical planes, both in the direction of the width and length of the machine, combined with two loopers arranged one behind the other in the direction of the feed of the material, and with a looper-carrier, each looper co-operating with one of the said needles in the formation of parallel seams, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two sub- 45 scribing witnesses.

JOHN W. DEWEES. Witnesses:

EBENEZER COBB, JOHN BUTZ.