US184477A - Improvement in sewing-machines - Google Patents

Description

y view of the needle.

UNITED STATES PATENT QEFIGE.

JOHN ONEIL, OF NEW YORK, N. Y.

IMPROVEMENT IN SEWING-MACHINES.

Specification forming part of Letters Patent N o. [84,477, dated November 21, 1876; application tiled January l0, 1876.

To all whom it may concern:

Be it known that I, JOHN ONEIL, of the city, county, and State of NewYork, have invented certain new and usef'ul Improvements in Sewing-Machines, of which the following is a specification, reference being had to the accompan ying drawings, forming part thereof, in which- Figure 1 is a side elevation of a machine cmbodying my invention. Fig. 2 is an end view of the saine. Fig. 3 is a vertical. section on line as fr, Fig. 1. Fig. 4 is an elevation, showing the reverse side of Fig. 1. Fig. 5 is a plan of said machine. The figures from 6 to 14 (except Fig. 13) inclusive are ldetail views of the parts composing the feed mechanism, to be particularly described hereafter. Fig. 13 is a Figs. 15 and 16 are .side elevations of the crochet-hook barand needlebar, and show mechanical devices which may be employed to operate the same. Fig. 17 is a similar view of the levers r fr', and shows a mechanical device by which said levers may be operated.

My invention relates to a machine designed for sewing and crocheting, in which the needle and needle-bar work underneath the cloth, the needle being thrust through the cloth from below, in conjunction with a vibrating crochethook operating above to form a crochet-stitch on the upper surface of the cloth 5 and consists of the combination of the devices hereinafter claimed. l

The several moving parts are mounted upon the ordinary sewing-machine frame A. B is a vibrating bar, which gives motion to the crochet-hook cam e, and may also be made to actuate the needle-bar C. To this bar B motion may be given from the driving-shaft B', which has bearing in the frame and at right angles t o and above the hereinafter-described rotating shaft B, as seen' in Fig. 15. Upon the driving-shaft is fixed an eccentric, b', to which the end of the bar is yoked, as shown. It is pivoted at bin the head of the frame,`and is rocked on its pivot by the bar B acting upon the curved surface e, so as to swing the hook c toward the point of the needle d. It is rocked in the opposite direction by a spring, j. Moltion is given to the needle-bar C' by means of a pin, f, in the short arm f of the bar B acting on the short arm of said bar C in conjunction with thespiral spring h.' I prefer,

however, in constructing my machine, to operate both the bar B and bar C by a positive motion, as shown in Fig. 16, the endof each bar being yoked to an eccentric, b and c', respectively, on the driving-shaft B', the rear ends of the bars B and C being, of course, extended backward over the frame of the machine to the said driving-shaft, and not arranged as shownin other parts of the drawings. The needle d is carried in the shaft D, to which a reciprocating motion is given by the bar C. This shaft is hollow, the needle extending through it, and is held by aset-screw, i. K is the feed-carrier. The under surface is shown in perspective in Fig. 6, and its upper surface in Fig. 14. It consists of a metallic disk, having an oblong opening, l, through it. At' one end of the opening is a short curved lever, n, pivoted near the periphery of the disk upon which it swingswithin said opening. vm is the feed-bar, which has the,peculiar shape. (Shown plainly in Fig. 7.) The bodyoofthis feed-bar is placed in the opening Z in the carrier K, and works back and forth in it to give the feed, as seen in Fig. 3, it being thrown forward by the action of the lever n against the inclined face s of the bar, and in the opposite direction by the spring t. The bar is thrown upward to engage the cloth, and the lever nis forced against the inclined surface s to push the bar forward in the act of feeding by means of a sectional sleeve. (Shown in detail in Figs. 8 to 12, inclusive.) It consists of two sections, c c. 'The base of each is a ring, that on c' being made to t into o, and the stem that rises from each ring being the segment of a hollow cylinder. They are put together, as seen in Fig. 8, and placed on'the upper end of the shaft D, as seen in section in Fig. 3. They extend upward, so that the upper end of c is in contact with the under face ofthe bar m, and that of c with the under side of the lever n. p p' are two levers, pivoted in the frame of the -machine at p. A side view of one of these levers is shown in Fig. 3; the other lies im-` mediately behind it. The end of one of these levers rests against the under surface of the ring on section n, and the other against that on section u' of the sectional sleeve. r r are two levers, pivoted at lr, by which the levers 1019' are actuated. i Motion may be given to these levers fr Tfrom the main shaft of the machine, or from the needle-bar in any suitable Way, so as to actua-te thefeed in conjunction with the other movements of the machine. I prefer to give motion to these levers r 'r1 by means of the eccentrics r2 and fra, respectively, xed on the driving-shaft B', which engage the rear ends of thc levers, and against which the levers are held by springs s2 and s3 secured to the frame of the machine, as shown in Fig. 17. The ends of the levers are, of course, eX- tended backward within the frame under or in line with the said driving-shaft, in furtherance of this construction, and not as shown in other parts of the drawings. 'w is a set-screw, by which the range of vibration of the levers 'r1 is limited, and thereby the feed regulated.

R is a rot-ary shaft, having its bearings in the frame of the machine. On the inner end is fixed a beveled gear, u, which works into the bevel-gear u'. Thelatter is placed loosely upon the upper end of the sectional sleeve o lv', so that the said sleeve may slide vertically in said gear, but must revolve with it. The feedbar m rests upon the upper face of this gear a', andashort stud or pin projecting therefrom,

pleasure of the operator, by rotating the shaft R, whereby a complete revolution, or any de-` sired part of a revolution, may be given to the carrier K, and with it the several conjoined parts by which the feed is effected. The needie which I employ in the machine (shown in Fig. 13) has a longitudinal groove extending -itsentire length, thus permitting the thread c and fu', and levers p p', constructed to oper-` ate as and for the purpose described.

2. The combination, in a sewing-machine, of the feed-bar m, sleeve c, levers r1 and p, and set-screw w, as and for the purposedescribed.

3. The combination ofthe vibrating bars C and B, the shaft D, the cam-lever b, and the crochetneedle c, as and for thel purpose described.

4. The combination of the hollow shaft D and the needle d, provided with a longitudinal groove extend-ing its entire length, asand for the purpose described.

5. The combination, in a sewing-machine, of the feed-bar m, feed-carrier K, bent lever n, sleeve c, and levers 'r1 p, as and for lshe purpose described. p

In witness whereof I havehereunto set my hand this 27th day of December, 1875.

JOHN ONEIL.

Witn esses B. S. CLARK, HENRY EIGHLING.

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