US253222A - Sewing-machine - Google Patents

Description

(No Model.)

G; F. DTE-WELL.

SEWING MAGHINE.

No. 253,222. Y Patented 116117.18822A jlgj. j@ 2 Mme/wegi- J'U/Lor; M' Geog/ewea. ig?. y?

NiTED STATES ArtNr rtree.

GEORGE F. NEWELL, OE GREENFIELD, MASSACHUSETTS.

SEWlNG-MACH!NE.

SPECIFICATION forming part of Letters Patent No. 253,222, dated February 7, 1882.

Application filed February Q6, 1881. (No model.) i

To all 'whom it r11-ay concern:

Be it known that I, GEORGE I". NEWELL, of Green field, in the county ot'Franklin and Commonwealth of Massachusetts, -have invented a new and useful Improvement in the Takeup of Sewing-Machines, ot' which the following is a true and full speciication.

My invention relates to that device in the sewing-machine by which the thread, after the stitch is made, is taken up or released so that a slack is made and held ready for the next descent of the needle. Some contrivance of this kind, as is well known, is necessary for this purpose on all machines, and is known as the take-up, but in many ot' them there is a difficulty ot' slacking the thread too much, or ot'drawing it too tight, or not allowing` time enough, ot' allowing the thread to kink, and they are often noisy and complicated. My iiivention is intended to obviate these objections.

In the accompanying drawings, Figure l is a front elevation ot' the face-plate. Fig. 2 is a sideelevation ofthe same. Y

Similar referenee-lettersindicate like parts in both figures.

Referring to the drawings, A is the face-plate ofthe machine.

B is the needle-bar, perforated at its upper end at a.

C is the loop on a cross-bar on one side of the needle-bar, and l) is a loop on the other side of said needle-bar.

E is a loop on the needle-bar.

E is a bar extending across the front'ot1he face-plate, midway between thel upper and lower edges of the same.

The thread, as it comes from the'spool and under the tension, passes as usual through a hole in the upper end of theneedle-bar and down about halfpthe length of the face-plate A, at which point a bar, F, extends across the front ot' the tace-plate, projecting a little forward of the needle-bar B. On one side of this bar F and close to the needle-bar is fastened a loop, C, or thread-eye,7 as it is called. On the needle-bar is a similar loop, E, and another loop, D, fastened to the cross-bar on the other side of the needle-bar and corresponding to the loop C; and these form the take-up. The

thread,coming down through the upper end of the needle-bar,is rst passed through the loop G,then up and through the loop E on the needle-bar, then down again through loop D to the eye of the needle. In the drawings the needle-bar is represented as being on its last half of the upward movement, and the thread is all taut. Now, as it (said bar) descends and drives the needle through the cloth it releases thread enough from the upper end 4ot' the needle-bar to form the loop for the shuttle, and on the lowerhalf ot' this downward motion the take-up takes up the same amount of thread that it slackened on the trst half of the movement. On the rst half ot' the upward movement of the needle the take-up relieves the same amountof thread that is taken up by theneedle-bar,thus allowing theproperamount of thread to the shuttle. At this point, the shuttle having passed the needle, the take-up and the needle-bar, working in unison, takeup the thread and form the stitch.

I claim- The faceplate ot' asewing-machine, provided with a broken or slotted crossebar, F, having loops C D, placed thereon at opposite points, in combination with a needle-bar playing vertically in said slot, provided with a simple loop, E, substantially as and for the purpose set forth.

GEO. F. NEWELL.

Witnesses:

JAMES S. GRINNELL, WM. H. ALLEN.

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