US137199A - Improvement in sewing-machines for quilting - Google Patents

Description

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AJ', MAPPE L w. NEWMAN. Y I sewing-Muhine-sfr Quilting. No. 137,199. Patented'Mar-chznss.

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l. HAPPE 8L W.y NEWMAN, Sewing-Machn'for uilfing.

N0. 13741199. PatentedMarch25,1873.

un Immun ,mPHora-ur/melwmc ca Mmm/:wels mams) miran STATES Parana" @ferrea JOHN HAPIE AND VENZESLAUS NEWMAN, OF NEW YORK, N. Y.

iMPROVEiVlENT IN SEWING-MACHINES FOR QUILTING.

Specification forming part of Letters Patent No. 'l, dated March 25, 18723.

To all whom Iit may concer/n:

Be it known that we, JOHN HAPPE and WEN- zEsLAUs NEWMAN, both of the city, county, and State of New York, have invented a new and useful Improvement in Quilting-Machine; and we do herebyr declare the following to be a full, clear, and exact description, which will enable those skilled in the art to make and use the same, reference being had to the accompanyin g drawing forming part of this speciiication, in which drawing- Figure 1 represents a sectional front view of this invention. Fig. 2 is a horizontal section of the same in the plane w x, Fig. 1. Fig. 3 is an end view of the same. Fig. 9 is a transverse section of the same in the plane y y, Fig. 1. The remaining figures are details which will be referred to as the description progresses.

Similar letters indicate corresponding parts.

This invention relates to certain improvements on a quilting-machine which we have described in our patent No. 130,715, dated August 20,1872. These improvements consist of acombination of parts, as hereinafter specified, for operating a straight-line needle-bar and a double zigzag needle-bar, so that while then double needle-bar produces zigzag or curved seams the straight-line needle-bar serves to sew the hems of the work, and also straight seams inclosing the curved or zigzag seams. In sewing curved seams the feed-motion is made to change for every stitch, so as to compensate for the curve and produce stitches of uniform length.

In the drawing, the letter A designates the main frame of our machine, which is provided with guide-ways a a, between which is tted a carriage, B, that carries the double zigzag needle-bar and the mechanism for imparting motion to said needle-bar. From the main frame extend two hangers, q, which form the bearings for a shaft, O, on which is mounted a cam, c, that engages with a pin, d, projecting from the carriage B, (see Fig. 4,) so that by revolving the shaft C a reciprocating motion is imparted to the carriage B in the guideways a. From the ends of the carriage B rise two standards, D D, which form the bearings for a shaft, E, and which are'provided with slots e, Figs. 2 and 3, that form the guides for the double needle-bar F F'. Y Each branch of this needle-bar carries a series of needles, n n', which are fastened in the required position by screw clamps or other suitable means, (see Fig. 2,) but the needles n on the branch F are not in line with the needles a on the branch F, so that, as the work progresses, parallel rows of stitches are produced, as indicated in Fig. 2, where the stitches produced by the needles n are designated by the letters s, and those produced by the needles a' by the letters s', and by referring to this figure it will be seen that by the double needle-bar we are enabled to sew squares or other gures on a quilt or other piece of work by one operation. From the ends of the double needle-bar F F extend rods f, the upper ends of which are guided'in staples g secured to the standards D, and from these rods project pins h, which engage with cam-grooves c' formed in disks G, which are mounted on the shaft E, so that, when this shaft is revolved, a rising-and-falling motion is imparted to the double needlebar. On the shaft E is also mounted an eccentric, j, the strap k of which is provided with a cage, Z, that enga-ges with a rod, m, and this rod extends down through a hole in a cross-bar, H, which is secured between the standards D D of the carriage B, (best seen in Figs. 2 and 9,) and on the bottom end of which are secured the presser-feet I I', one of which acts in conjunction with the needle-bar F, and the other in conjunction with the needlebar F. The motion of the eccentric j is so timed that the presser-feet are depressed upon the material to be sewed wlfen the needles descend, and after the needles have passed out of the material the presser-feet are raised so that the material can be fed without obstruction. To the under surface of the carriage B are secured two hangers, b b, which form the bearings for two shafts, o o', on which are mounted the shuttlc-carriers K K', one set for the needle-bar F, l

and the other for the needle-bar F. The shafts o o receive an oscillating motion bymeans of an eccentric p, which is mounted on the shaft E, and connects by a rod, q gf, with cranks r r', secured on the ends of said shafts. (See Fig. 3.) The shaft E, which has its bearings in the standards D D of the carriage B, traverses back and forth with said carriage, and its ends are square, oval, or of any other equivalent shape, and they slide in tubes t, which have their bearings in brackets L, that are firmly connected to the main frame A, and do not move With the carriage B. On the outer ends of these tubes are secured cranks c, which connect by means of rods w with similar cranks a", mounted on the end of a shaft, M. By these means the revolving motion of the shaft E is transmitted to the shaft M, or vice versa, while the said shaft E is free to traverse with the carriage B. The shaft M has its bearings in standards N N, which rise from the main frame, and Which are provided with slots b to guide the needle-bar O. This needle-bar carries a number of needles, no, Which are so situated that they formstraight seams s0, Fig. 2, on the sides of the figured seams ss', produced by the needles a a' of the carriage B. The needle-bar O receives a rising-and-falling motion by cams, or other suitable means, and it co-operates with a presser-foot and with shuttle carriers similar to those Which co-operate With the needle bars F F', but since said needle'bar 0 has no traversing motion, the

seams produced by its needles are straight. With this needle-bar O may be combined one or tWo hemmers, P, Fig. 2, so that the material passing through our machine is hemmed While the Work of sewing the seams s s' so progresses. The Work is passed to the platform or cloth-plate of the frame A through rollers Q, which simply serve to stretch and to compress the Work, and to facilitate the operation of introducing to our machine two sheets of textile fabric, with an intermediate layer of Wadding, for the purpose of producing quilts. These rollers are mounted in suitable bearings on one side of the frame A, While on the opposite side of said frame are secured the journalboxes 0 for the feed-rollers B. These rollers are geared togetherby pinions do, and on the end of one of said rollers (see Fig. 3) is mounted a ratchetwheel, e, which is acted on by a paWl, j 0. This paWl slides in a guide-bracket, g", Which is secured to the main frame, and it is subjected to the action of a spring, h", which has a tendency to raise it, and to the action of a cam, i0, mounted on the shaft E, Fig. l, which has a tendency to depress the same once for every revolution of said shaft. The shank of the paivl fo is bent at its upper end so as to form a tappet, jo, Which is of sufficient length to offer a bearing-surface for the cam t as the latter traverses with the carriage B, While the paWl and its guide-bracket do not partake of the traversing motion. The shaft C, which carries the cam c that imparts to the carriage B the requisite traversing motion, receives its motion by a cam, ko, Fig. l, mounted on the shaft E, and acting on a spring-pawl, m0, which engages with a ratchet-Wheel, Z0, secured to the end of the shaft C. The paWl m0 moves in abracket, 90, that is secured to the main frame, and does not traverse With the carriage B. The traverse-cam c can be changed in form, according to the Work to be produced; it can be constructed in the form shnwn in Figs. 5 and 6, or it can be so constructed that the needles u a' produce curved seams, such as shown in Fig. 7 In this last-named case the tappet j" of the feed-pawl ff is made in the form shown in Figs. 7 or 8, so that the feed-motion accommodates itself to the formation of the seams, and that the stitches on said curves become of uniform length. Various tappets may be provided and secured to the feed-paivl, according to the Werk to be produced.

What We claiin as new, and desire to secure by Letters Patent, is

l. The tubes t and cranks 1J a0, connected by rods w, in combination with the shaft E, which impart-s motion to the traversing needle-bars F F', and With the shaft M, which imparts motion to the rising and falling needle-bar O, substantially as set forth.

2. The combination of a curved or stain shaped tappet, jo, with the fecd-pawl f", and with the traversing needle-bars F F', substantially as and for the purpose shown and described.

This specification signed by us this 23d day of January, 1873.

JOHN HAPPE.

VENZESLAUS NEWMAN.

Witnesses: Y

W. HAUFF, E. F. KAs'rENHUBER.

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