US79901A - Improvement in embroidering-machines - Google Patents

Description

UNITED STATES PATENT OEEICE.

JACOB EINHCRN, or NEW YORK, N. Y., Assienon 'ro HiMsELE Ann JACOB EUGSTEE, 0E SAME v-`LACE.

IMPROVEMENT IN EMBROIDERiNe-MACHINES.

Specification forming part of Letters Patent No. 79,901, dated July 14, 1868.-

To 4all 'whom 'it may concern: i

Beit known that I, JACoB EINHCRN, of the city, county, and State of New York, have inventcd a new and Improved Embroidery-Machine; and I do hereby declare that the follow` ing is a full, clear, and exact description thereof, which will enable others skilled in the-art t0 make and use the same, reference being had to the accompanying drawings, forming part vof this specification, in which Figure l, Sheet 1, represents a longitudinal'v vertical section of myimproved' embroideringmachine, taken on' the plane of the line :t az,- Fig. 2. Fig. 2, Sheet l, is a plan'or top view of the same. Fig. 3, Sheet 2, is a detail side elevation of the swinging needle-frame. Fig.

4, Sheet 2, is a detail inverted plan view lof the same. Fig. 5, Sheet 2, is a detail vertical section of the needle and its holder, taken onl the plane ot' the line yy, Fig.'3. Fig. 6, Sheet 2, is a detail vertical section of the sewing'- hook and its holder, taken on the plane of Vthe line z z, Fig. 3. Fig. 7, Sheet 3, is a detail side view, partly in section,ofthe sewinghook and the lower part of its holder.A Fig. 8, Sheet 2, is a detail face view of the cam by which the sewing-hook is operated. Fig. 9, Sheet 2, is a detail inverted plan view of the device for throwing the needle out of gear.

Fig. l0, Sheet 2, is a detail vertical section taken on the plane of the line .iv, Fig. 3.

Similar letters of reference indicate corre.

spending parts. i

This invention relates to a new machine for embroidering on gauze or Yany othcrsuitable fabric; and lit consists principallyin iittin g the devices by means ot' which the stitches are made in a swinging frame, and in stretching the fabric to be embroidered on a sliding carriage, so that by thesc'\1neans the stitches can be made to follow any desired pattern that may have to be embroidered.

lhe invention also consists in the arrangement of the needle and hook by means' of whichthe stitches arel made, and in the de-V vices for operating and adjusting the same,

and for throwing them in. or out of gear, which will all be more fully understood from the following description.

A in the drawings represents a stationary frame, of suitable size, in which guides are arranged for a sliding horizontal frame, B, which has suitable longitudinal rods or rolls, a a, ,to which the gauze or fabric to be embroidered is fastened, and between which it is stretched, as is clearly shown in Fig.` 2. The frame 'B can beadjusted lby hand or other power on its support A.' n

G represents a stationary support for holding the'stitching apparatus and the Ashaitts for driving the saine.

To the support Gis hinged an; oscillating frame, D, which forms a joint of the real needle-holding frame E, of which full views are given in Sheet 2.

The frame E consists of an upper horizontal bar, b, of a lower horizontal bar, c, of a rear vertical bar, d, by which b and c are connected, of a front vertical arm. e. nroiecting downward from the front end or b, and of a front vertical arm, f, projecting upward from the' front end of c. zontal lugs g g, through which the pins by which the frame E is p'ivoted to D pass, or to which they are fastened, as is clearly indicated in Fig. l. The ends of the arms e and fare bent horizontally to the front, as shown in Fig. 3, so that these horizontal parts are in' line with each other, as shown in Fig. 3'. `Above the bar b project lugs or ears, in which two horizontal shafts, F and G, have their bearings. The shaft F is connected by bevel-gears or otherwise with avertical shaft, H, which is arranged in rear of and parallel with the rea-r bar, d, and which at its lower end gears also into a horizontal shaft, I, which has its. bearings in lugs projecting from the under side ef the bar c. By means ofthe shafts F. and I re- -i ciprocating motion is imparted to the needle and sewing-hook, respective1y,`as will be here-A. inafter more fully described. 'lhey are connected by means of' the shaft H', so that 'thetr motion may be equal and the numbers of their l respective revolutions alike. The shaft H receives rotary motion by means of a belt or otherwise from an arbor, h, which has its bearings' on the pivoted end ofthe frame-D in-linc with the pivot-pins of the saine, as is clearlyshown in Fig. l. As the' arbor h receives rotary motion from-suitable mechanism, it can transfergi the sameto thcshaft H, as the same is also in line with thepins 7', by means of Whichthe* frame E -is pivoted to the frame D,'and as i consequen tlythe distance bet Ween theaigislr 0n the rear bar, d, are horia l Y meer and II is never changed in whatever direction either may be turned or swung.

' ln the horizontal end e ofthe upright arm e,

'bell-crank, L, which-is atits angle pivoted to an arm, m., proj e'cting downward fromv the tubes, and which carries at its free end a hook, as is clearly shown in Figs. 3 and G.

On the front end ofthe shaft F is mounted, directly above the top end of the pin 7c, a cam, M, which is provided with a working-surface, 1, Fig. S, by means of which it serves to hold down the pin It during nearly half the revolution of the shaft F. The spring in or ony the tube J serves to lreep the upper end of the pin Zr constantly against the edge of the cam M, and as the shaft F revolves the cam M throws the pin k down and holds it down during part of the revolution. Vhen the pin k is thus depressed the hook L will be swung forward, so-

as to sweep through and catch a loop held up by the needle, as hereinafter set forth, and as shown in'Fig. 3; but when the cam does not depress the rod the hook will be with its point down, or nearly so, so as not to retain a loop. In the horizontal end of the arrnf, and in a lug or lugs projecting from the said arm, are the bearings for a reciprocating. needleholder, N, to the upper end ot' which the needle o is removably secured. The needle-holder is a vertical rod or tube resting upon the forked 'end of an oscillating plate, n, whichis secured to the underside of a plate, o, that is hinged to the under side of the bar c, as is clearly shown in Figs. 3 and 4. On the rear end of the plate o is an upright slotted arm, p, Fig.

10, into the slot of which a crank-pin, r, thatv is secured to the front end of the shaft H,.f1ts, so that, as the shaftH is revolved oscillating motion is imparted to the plates o and n, and consequent reciprocating motion to the needle holder and needle. A spring, s, around the needle-holder serves to keep it down unless it is raised by the plate n. 'lhe plate n is slotted, and is thereby made longitudinally adjustable under the plate o, as indicated in Fig. 4. It is by means ofsuitable levels, PP, connected with a springcatcl1,Q,whieh,when the upper lever, P, is drawn forward, locks it to a stud, t, and the plate n is thereby withdrawn from )the needle-holder, which is thus thrown out of gear. The levers P P carry this disen-` 'ga gin g apparatus from the lower to the upper part of the frame E, as shown in Fig. 3, for the purpose of allowing it to be reached above the fabric. By a suitable spring' the plate u is thrown forward against the needle-holder as soon as the spring-catch Q is again disengaged from the stud. The sliring-catch and stud are fully shown in Figs. 3 v,and 9. .The fabric is vbetween two plates, laand u1, that project respectively from the arm on and needle-holding arm j', and-thev plate o is adjustable on its holder, as shown in Fig. 7.

The embroidering operation is as follows: The needle is threaded as shown, the thread being by preference .passed through an adjustable extension-plate, a', from a bobbin, R, hung on the lower part of the frame E. As the shaft I .is revolved, thevneedle will first be raised,-

will pass' its flattened point through the fabric and through the perforated plates v zo, and will carry a loop to the hook. Thel pin 7c is then depressed by the cam M, and the hook L is therebythrown forward through the loop-- that is held up by the needle. The needle then goes down, and as it descends the fabric should be pulled back from the hook; or the frame should be moved forward so as to stretch the last loop in the mannershown in'Fig. 1.. As the needlecornes up again the -hook still vretains the| old loop andy theneedle passes through it. Then ,the hook drops the old loop,'and, when again thrown forward, takes hold of the new loop, and in this 'manner the ordinary well-known simple chain-stitch is made. To allow the hook to be alwaysiu line with the line to be stitched,it is necessary that it can be turned, and as the needle is flat, so that it can lay close against the side of the hook, it is also necessary that when the hook is turned the needle should be turned in the same manner. This is effected by connecting the tube 4J by means of geared shafts' G, G', and Gr2 with the needle-holder, as sho-wn, so that when the tube, and with it the hook, is turned the needle will also be turned. The hook is formed rather broad, so that it will widen the loop, andit has a grooved outer edge, into which groove the needle slides, so that it will be impossible for the point of the hook. to miss the loop.

By having the frame E jointed and hinged, as described, it can be moved in. any direction, so that the stitches may be arranged in any desired ornamental curved'- or angular direction, and, if one section of the fabric has lbeen embroidered, the frame B is moved so as to bring another section into operation; but if the fabricQ to be embroidered is not long `the frame B need notibc inoved at all, or a movable frameB is not then required..

The gear-wheel b, into which the gear on shaft Gr2 gears, is fitted around the feathered needle-holder N, allowing the same to move freely up and down through it, but causing it to revolve when the shaft G2 is revolved.

The face of the tube J is or should be roughened, so that it can-be easily turned by hand.y

'anism, substantially as described, in a jointed swinging horizontal frame, D E, so that ornamental designs may be produced without moving the fabric after each stitch, substantially :as herein shown and described.

and described.

4. The'oscillating' lever n o, inl combination with the crank-shaft I and reciprocating holder N, 'all made and operating substantially as'4 herein shown and described, for the purpose of operating-the needle in the manner specified.

5. The lon gitudinally-adj ustable oscillating lever n, in combination with the levers P P, and

the spring-catch Q or its equivalent, all lnade and operating so as to allow the needle to be Aeasily thrown in or out of gear.

6. The application of the hook L and needle O, operated by the mechanismdescribed, for

workingaehainstitch,for thepurposespeciied.

Y JACOB EINHORN. Witnesses:

Win. F. MGNAMARA, ALEX'. F. ROBERTS.

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