USRE10277E - coenely - Google Patents

Description

5 Sheets-Sheet 1.

'E, GORNELY.

EMBROIDERING MAGHINB.

Reissued Jan. 23, 1883..

5 Sheets-Sheet 3.

E. GORNELY.

EMBROIDERING MACHINE.

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EMBROIDERING MACHINE.

Reissued Jan.23,1883.

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E. (J 0 R'NELY. EMBROIDB'RING MACHINE.

Reissu ed v Jan. 23,1883.

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UNITED STATES mun GORNELY, or PAR-IS, rnANcn,

EMBROIDERING-MACHIME.

SPECIFICATION forming-part of Reissue Letters Patent No. 10,277, dated January 23, 18 3,

Original No. 145,182, dated March 3. 1874. Applientioufor reissue filed June 21, 1882. Patented in England July 1t, 1973,

' means, and in France July 19,1873, No 99.906.

To all whom it may concern:

Be it known that I, EMIL GORNELY, of

Washingto'nfin the DistrictofGolumbia,U-nited States of America, temporarily residing in l aris,in the Republic ofFrance, haveinvented certain new and useful Improvements in Overseaming andfimbroidering Machines, of which improvements the following specification is a full description, reference being had to the accompanying drawings, which form a partof this s )ecification.

Figure 1 representsanelevation of said machine. Fig. 2 represents an end view. Figs. 3, 4, 5, and 6 represent viewstobe hereinafter referred to. Y

My invention relates to certain improvements on the Bonnaz embroidering-machine, for which Letters Patent of the United States Nos. 83,909 and 83,910 were granted to me 011 the 10th day of November, 1868, as assignee of A. Bonnaz. A description of said machine having been fully given in said Letters Patent, it is needless to repeat it in this specification.

My improvements are designed to make a zigzag chain-stitch or an overseaming-stitch by means of the-mechanism of the Bonnaz embroideringpmachine, which in its ordinary operation makes an ordinary ch ain-stitch only, and also to secure to the universallyrjointed feed-bar a'bearingupon the work more nearly uniform than that obtained by the toothed feedsnrface heretofore used, and thus to obtain a more perfect and reliable feed.

The formation of the zig-zag chain-stitch or overseaming-stitch I accomplish by reversing thefeed-motionof the machine aftereach stitch by means of additional mechanism, which is combined with the machine in such manner that its operation in no way interferes with the universal feed-motion of. said machine,by

'which the most intricate embroidery can be produced without turning the material. I am thus enabled to do overscaming work or edging, as well as to make a highly-ornamented embroideringstitch, which, by the aid of the universal feed-motion, can be employed to execute the most intricate designs without turning the material.

To render the bearing of the feed-bar upon the work more nearly uniform, I- employ an elastic and yielding surface, using for the purpinion (1, having double the diameter of the pinioird, makes only one revolution toeach two revolutions of the latter, and drives, by

means of a crank-pin, a, a pitm'au, F, a rod, F, and a screw gear, G, which latter is in'gear with'the horizontal screw-gear G, and-imparts' to i'tan oscillating motion upon its axis, which is communicated to the feed-motion, as wellas to the other principal elements of the machine, by means of the gearings 1m n op q 1" .9, Figs. 1,3, and 4, and as the length of stroke of rod 1 is such as to turn the screw-gear G less than half a turn the feed motion of the machine is thereby reversed less than half a turn, thereby producing a zigzag chain-stitch, the machine making one stitch to the right, one to the left, one to the'rig'ht, 85c.

Asin the Bonn-(z embroidering-machine, the feed of the machine is'directed by means ofa crank-handle, P, but whose operation must not interfere with the vertical reciprocatingmotion of the rod 1 and of the screw-gearings G and G. To obtain this result a stud, f, isfixed upon the rod F, and said stud slides within a groove of the sleeve 11, which can turn freely'in support Z. The crank-handle being secured upon the end of the sleeve H,it can turn the latter while the rod F slides therein freely; but upon turning the crank P and the' sleeve H, the'latter will also turn the shaft F,- through the studas well as the gearings G G l m a o p q r s, and the entire feed apparatus as well as the needle and loopcr of the machine. The rod F is connected with the pitm an F by means of a universal joint, K, so

as to permit.the former to play freely on its vertical axis.

It is necessary that the stroke of the rod l3" and of its screw-gear'G should be made adjustable, so that the oscillationofthe screw G can be regulated very accurately to protoo duce a wider or a narrower zigzag or overseaming stitch. This is effected by securing the crank-pin a not directly to the wheeld, but to a slide, Y, which is dovetailed in said wheel. A screw, X, is provided with an eccentric pin,'2,which reaches into aslot oft-he slide Y, and byturning it said slide can be adjusted so as to bring the crank-pin a nearer to or farther from the center shaft D, thereby reducing orincreasing theleugth of stroke of shaft F, and consequently thewidth of the overseam'ing-stitch. The slide Yis secured against the wheel d by the set-screw 3.

The original Bonnaz embroidering-maehine is provided with a ring-shaped toothed feedsurface, which, being secured to a feed-bar hinged upon a universal joint, performs the universal feedv in any desired direction. The feed-bar being pivoted to a hinge, I find that it does not bear equally well upon the material in any position, which is very essential, chiefly iu the overscaming-work and on very lightgoods, such as'muslin or tulle. Instead, therefore, of employing a circular toothed feed-surface, I employ a circular feeder, a, Fig. 6, provided with an india-rubber ring or washer, y, which is set upon a collar-of the feeder z, and which, by reason ofits elasticity, bears equally well upon the material in any position and producesa more perfect and reliable feed.

The operation of the rod F, and consequently of the zigzag movement above described, may be stopped during certain inter \als, during which the machine produces or-' dinary chain-stitches, so asto make mixed stitchesfor instance, one stitch to the right and an ordinary chain-stitch, one stitch to the left and two ordinary chainstitches, one stitch to the right and three ordinary chain-stitches,

one stitch to the left and four ordinary chainstitches, &c.' The mechanism for producing said mixed stitches is illustrated in Figs. 3, 4, and 5, and operates in the following manner: The fly- -wheel A drives the pitman B, lever O, and

pawl D, and the six-toothed ratchet E, which consequently makes one-sixth of a revolution at each stroke of the machine. The frictionroller H, whose axis is secured to the lever K,

reaches into the cam-groove a: of the ratchetwheel E, and, as the Iatteris'operated upon, it operates the lever K, causing it to swing upon its pivot L. The end of the lever K is connected with the pitman M, which latter, being attached to the short arm of the lever N, Fig. 4, operates said lever and drivesthe rod F, the screw-gearings G and G, and the I entire zigzag or overseaming apparatus-in the manner above described; but the motion of the entire apparatus may beinstantly stopped if the pawl D is raised at certain intervals,

it turns said lever, raising its horizontal arm,

and consequently the pawl D, thus stopping instantaneously the motion of the ratchetwheel E and of the entire Zigzag apparatus.

The pins r on the wheel Q, are arranged in such order as to produce the desired stop pages. -If the intervals are to be during several strokes of the machine, several pins may be united by covering them with small metal caps; or studs t of thedesired length may be employed.

The length of stroke of the rod I may be adjusted by means of the. screw y; Fig. 4, on which a collar, X, is adjusted, to which the pitman M is pivoted at Z. Thus the said pivot Z can be brought nearer to or farther from the fulcrum 0 of the lever N, producing the desired adjusttuents in the stroke of rod F.

Having now described my said invention and the manner of carrying the same into effect, what'I claim is p 1. 'In an embroideringmachine, substantially as described, the combination, with the universally-jointed feed-bar. of the rising and falling shaft F, and the system of shafts and gearing connecting said shaft and feed-bar,

and imparting to the latter during the operation of the machine a reciprocating'or oscillating movement for the production of a zig-' zag or overseatning stitch, substantially in the manner herein shown and set forth.

2. The cotnbination of the wheels d d, rods F F, screw-gears .G G, sleeve H, and crank P, substantially as and in the tnanner and for the purposes described.

3. The combination, with the wheel (1, of the adjustable slide Y, eccentric screw X, set-screw 3, and crank-pin a, for the purpose of adjust ing the length'of the stroke, and consequently the width of the overseaming-stitch, substantially in the manner herein described.

4. The universally-jointed feed-bar provided with the indie-rubber ring or washer 3 secured to the lower end of the feed-bar, substantially as described.

In testimony whereof I have signed this specification in presence of two subscribing witnesses.

EM] L GORNELY. Witnesses:

E. P. MAQLEAN, DAVID T. S. FULLER.

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