US274548A - baker - Google Patents

Description

(Nn'ldel.) 2 Sheets-Sheet 1.

' G. W. BAKER.

EMBEOIDEEING ATTACHMENT TOE SEWING MACHINES.

No. 274,548. Y Patented Mar.27,1883.

www

M TNVENTOE ATTUENEYS WNESSES of e (No Model.) 2 Sheets-Sheep 2.

- G. W. BAKER. Av(LMBNUTNEUNG ATTACHMENT PON 4SEWTNG MACHINES.

No. 274,548. A Patented NAI. 27, 188s.

' sss INNENTON mg ATTORNEYS u verras. mnu-mmm wmingmn u. c;

` he hereinafter full y set forth and claimed.

IJ'NITEDv STATES PATENLQFFICE.

GEORGE W. BAKER, OF CLEVELAND, OHlO, ASSlGNOB. T() THE WHITE SEWING MAJJHINE COMPANY, OF SAME PLAGE.

EVMBRoiDEmNc TTAcHMr-:N

T Foe sewlneaMAcHiNEs.

SPECIFIGATION forming part of Letters Patent No. 274,548, dated March 27, '1883.

Application filed December 12, 188:2. (Xo model.) 4 k To allai/'1.0m it may concern: l

Be it known that I, GEORGE W. BAKER, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and'. useful Improvements in EmbroderingAttachments for Sewing-Machines; and I do hereby declare the following to be a full, clear, and exact description ot' the invention, such as will enable others skilled in the art to which it pertains to make andv use the same.

My invention relates to embroidering attachments for sewing-machines and it consists in the parts and combination of parts, as will In the drawings, Figure 1 is a view in perspective of my embroidering device, showing it secured in place by being fastened to the presser-foot bar. Fig. 2 is a view in front eleration of the same. Figs, 4,`and 5 are viewsshowing the dii'erent positions oi' the looper, threads, and needle.

A represents the presser-foot bar of a sewingmachine, to which I prefer to secure my embroidering attachment. Y

B represents the needle-bar ot' a sewing-ma chine, which is provided at the rear side with the usual setscrew for retaining the needle in its socket.

C is a presser-foot, which is secured to the presser-foot bar A by means of the socketpiece C' and set-screw G2. To the vertical portion of'this presser-foot C, and beneath the socket-piece C', is secured a frame, D.

Journaledin the frame D is a spiral shaft, E. The end of this shaft E which is nearest the needle F is provided with a thread-looping device, G', which is formed as shown more clearly in Fig. 3, and provided with two small arms, a and b. One ofthe arms, a., is provided with an eye, c, through which the embroidering-thread passes.

H is a. bell-crank, which is pivoted at H to the frame D. One arm, I, of the bell-crank H is bifurcated, and thus adapted to engage with a set-screw on the needle' bar B, from. which it receives a vertical reciprocating motion, which in turn communicates a horizontal reciprocating motion to the other arm, I', of the bell-crank. This arm I.' is also bifurcated or slotted at the end, said end being thus adapted to reci procating rotary motion.

J is a small bell-crank, which is also pivoted to the frame D in the rear. One arm, Ji, ot' this bell-crank is adapted vto engage with a lugor short arm, e. which extends out from the hell-crank H. The other arm, J2, is adapted to engage with the shoulder h of the shaft E and act to move it forward at the required time, as will be hereinafter fully explained.

K is a tension device, ot' any suitable con struction, through which the embroideringthread d passes before being passed through the eye c of the looper. The embroideringthread d also passes through another eye, Ij', formed in the end ot' a piece ot' spring-wire, said eye j being set nearly on a horizontal plane with the arms a, and b of the looper G, thus guiding the thread in a horizontal direction to the louper, as shown in Fig. 3.

L is another tension device, which is located beneath the take-up of the sewing-machine, (not shown,) and between said take-np and the needle. The function of this tension L is to keep the needle-thread g tant between the said tension L and the eye of the needle.

The operation ot' my device is as follows: The needlethread g is threaded on the machine in the usual manner, with the exception that it is passed through the tension L before being passed through the eye of the needle F. The embroideringthread d is iirst passed through the tension K, through the eye f, and then through the eye c, as shown in Figp. Now, as the needle-bar and needle move upward the louper Gr is caused, by means of the bell-crank H, to make a partial revolution in the direction of the arrow, as shown in Fig. 3,

which in turn causes the arm b of the louper G to engage with the embroidering-thread cl and bring it to the position shown, Fig. 3. The arm a ofthe looper is alsov caused to pass ahead of the needle-thread g at a point below the needle-point, and between said needle-point and the goods to be stitched or embroidered. At the downward motion of the needle-bar and needle the point of the needle is caused to pass between the looper and the embroidering thread d, about midway between the arms a and b, and from thence down through the goods.

engage with the shaft E and impart to ita y This position of the needle, looper, and threads is shown in Fig. 4, and will be clearly understood. the bellcrank J, engaging with the shaft E, causes the looper first to be pushed backward until the shoulder h on the shaft E has reached the bearing fi, which will cause the needlethread g to slip from the arm a of the looper G, and as the needle is forced still farther downward the bell-crank causes the shaft E and looper G to come to the position shown in Fig. 5. It will also be seen by this figure the manner in which the threads are inter- Woven, which results in the embroideringthread d being sewed to the goods, thus forming an embroidering-stitch. When the needle has nearly reached its lowest point the arm e of the bell-crank H engages with the arm J' of the bell-crank J, which acts through the arm J to force the looper forward, when it is again in position to operate as hereiubefore f described.

What I claim isl. Ina sewing-machine embroidering attachment, a rotary reciprocating spiral shaft arranged horizontally and operated by the needle-bar, and carrying a looper provided with arms adapted to engage the embroideringfthread, one of said arms being provided with au eye, substantially as set forth.

Now, as the needle passes downwardy vice, the combinatiom'with a spiral shaft and a bell-crank adapted to impart a reciprocating motion to said shaft, o f a second bell-crank adapted to engage with the first, and also with the shaft, whereby the said shaft is moved 4. In a sewing-machine embroidering deforward in a horizontal direction, substantially' as and for the purpose shown and described.

In testimony whereof I sign this specificay tion, in the presence of two Witnesses, this 25th day of October, 1882.

GEORGE w. BAKER.

Witnesses i C. H. DoREa, W. E. DONNELLY.

Images