US1803918A - Needle threader - Google Patents

Description

J. ROZDILSKI May 5,1931.

NEEDLE THREADER Original Filed Nov. 27, 1926 INVENTOR.

ATTORNEY.

Patented May 5, 1931 JOHN ROZDILSKI, OF MAYFIELD, PENNSYLVANIA; ASSIGNOE OF ON-E HALE TO JOSEPH A. KIEHART, F MAYFIELQ EENNSYLVANLA NEEDLE TI-IBEADER Application filed. November 27. 1926, Serial No. 1511177. Renewed Marchfil), 1931'.

This invention relates to needle threaders and particularly to novel means whereby a needle threader may be mounted on a needle bar of a sewing machine and held in opera- -tive relation to a needle eye in an elevated position where it will be clear of the manipulations attending the sewing operations and yet have a location whereby it can be expeditiously swung into place for threading a lo needle when that step of the operation is desired.

It is a further object of the invention to provide a mounting for the threader having novel means by which it is attached to the needle bar and including a novel structure whereby a spring which holds the threader elevated or in inoperative position is also applied to the mounting of the threader, a condition which results in a compact neat struc -ture of comparatively inexpensive and efi'icient assembly.

lVith the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and 'combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this application, where- 8 in like characters denote corresponding parts in the several views, and in which Figure 1 illustrates a view in elevation of a fragment of a needle bar showing a needle and threader embodying the invention applied thereto;

Figure 2 illustrates an enlarged detail view showing the threader in engagement with the thread being applied to a needle;

Figure 3 illustrates a similar view showing the parts in diiferent positions;

Figure 4 illustrates a view on the line lt of Figure 3:

Figure 5 illustrates a view of the device at right angles to that shown in Figure 1 withthe threader in operative relation to the needle;

Figure 6 illustrates a plan view of the blank employed in the construction of the threader guide; and

Figure 7 illustrates a horizontal sectional view of the guide.

In these drawings:10denotes a needle bar whichhas the usual seat for a n'eedle 11 and a* collar 12 encircles the needle bar at its lower end; The collar is held in place by a set screw 13 which is preferably threaded in the collar and bearsagainstthe needle and r holds it in the seat. The needle, of course, must be properly set with its eye positioned to'receive'or coact with the threader. The collar has anextension 14 preferably at right angles to the needle barand this extension is' internally threaded to engage the threads of a screw 15. The arm 16' of the threader is oscillatable on the screw between thehead of the screw and the end of the extension of the collar and the said arm is of angular formation or it'is-offset inwardly tow'a-rdthe needle bar in order that the threading instrumen alities may be brought into alinement with the needle. The outerendof the" extension has a shoulder 16 constituting'anabutment for the arm when said armis at the limit of i s upward movement where it is. held when the threader isnot in use. A

5 spring 17 has one end anchoredto-the collar orpart thereof and-said" springeneircles the extension and has its oifsetend connected to the arm 16 and the spring is so made and mounted-as to operate for. returning-the arm to the position in which it-is shown in Figure 1 and for yieldingly retaining-it in -that position in order that an operatormay by pressing on the arm move it in the direction of the indicator A for carrying thethrea'ding instrumentalities into operative relation to the needle. The shoulder is effective to arrest the upward movement ofthe arm as stated and the arrangement of the. parts is compact and of neat appearance.

The means for threading the needle in. the present embodimentofthe invention includes two guides or jaws-l8 'and 19 that are carried by the: outerenclof-the'arm 16 and a tongue 20 is also carried by-the' arnrand itprojects outwardly in a line between-the. guides-l8 and5'l9andit is intended t0?" enterthe eye-of theneedl'ewhen the 'guideslare'en; I gaging opposed surfaces ofthe-needle: THe' tongue may have a notch or hook 21 of sufficient depth or size to create a lodgment for thread and when the threader is operated and the guides are caused to assume the position shown in Figure 3, the thread 22 may be applied to the notch or hook of the tongue and when the arm is released, the spring will serve to move the arm outwardly from the needle and the thread will therefore be drawn through the eye of the needle as it is shown in Figure 2, a condition which will result in the completion of the threading operation.

Preferably in the formation of the arm and jaws, they constitute a one-piece structure preferably stamped from metal having the conformation substantially of that shown in Fig. 6. The jaws are then bent at angles to the arm and parallel to each other with a space' between them for the tongue 20.

That portion of the arm between the jaws is slit or cut horizontally as shown at 23 and 24:, Fig. 6, and the portion 25 of the arm between the cuts is bent inwardly to form a loop 26 for the reception of a shank 27 -1 iormed as an integral part of the tongue 20 and this provision permits the tongues to be substituted expeditiously in the threaderv arm, should they become impaired or worn.

I claim:

1. A needle threader, a mounting adapted to be mounted for oscillation on a needle bar of a sewing machine, said mounting comprising an arm with an angularly disposed and integral extension, a guide member integral 1 with the lower edge of said extension, a guide integral with the upper edge of said extension, one of said guides lying approximately parallel with said extension on one side and the other of said guides lying approximately parallel with the extension on its opposite side, the said extension having slots to form a seat therethrough, a tongue located between the guides and having a thread hook.

2. A needle threading attachment for sew- Y ing machines comprising integral sheet metal members which constitute an arm, provided at one end with an apertured offset means for associating the same with a needle bar of a sewing machine,'the same having at its opposite end an offset provided with slits for connecting thereto the shank of a thread engaging hook, said slitted offset portion being provided with integral parallel guide members formed integral with the part having 1 eherethrough the slits for the shank of the JOHN ROZDILSKI.

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