US1099647A - Self-threading shuttle. - Google Patents

Description

A. GUILMETTE. SELF THRBADING SHUTTLE. APPLICATION FILED JULY 24,1912.

1,099,647, Patented June 9, 1914.

5. M. 44%. S mgwm ADELARD GUILMETTE, OF GRAFTGN, MASSACHUSETTS.

SELF-THREADING SHUTTLE.

Specification of Letters Patent.

Application filed July 2 1, 1912.

Patented J nne 9, 1914.

Serial No. 711,213.

To all whom it may concern Be it known that T, ADELARD GUILMETTE, a citizen of the United States, residing at Grafton in the county of Worcester and State of Massachusetts, have invented a new and useful Self-Threading Shuttle, of which the following is a specification.

This invention relates to a self-threading or automatic attachment for a loom shuttle.

The principal objects of the invention are to provide a construction for application to the usual longitudinal threading slit for the purpose of causing the thread automatically to come into a position in said slit when it is brought around into the eye that will cause the thread to be held against dislodgment from the threading slit and to make the construction thereoi'. of a very simple and inexpensive character so that it not only can be made cheaply but can be repaired if necessary with very little expense; also to provide simple and convenient means for holdin' the device in position of such a character tiat the same will not get out of shape when being inserted in the shuttle, to provide a pair of spaced projections extending past each other suitably arranged to prevent the dislodgment of the thread, and especially, in the preferred form of the invention, to provide a construction in which there are two legs or projections 011 one side between which extends a projection from the other side whereby the thread is held against dislodgment by motion from either side; and to provide a construction whereby the distance between these projections can be regulated to accommodate threads of different kinds and sizes. The invention in this form also involves a construction which can be made cheaply and conveniently from a single piece of wire.

Further objects and advantages of the in vention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Figure 1 is a plan of a portion of a shuttle of well known type with a preferred form of this invention applied thereto; Fig. 2 is a transverse sectional view 01' the same on the line 22 of Fig. 1; and Fig. 3 is a perspective view of the threading attachment removed from the shuttle.

In the drawings the invention is shown in a form in which the attachment can be made of a single piece of wire. In this form the shuttle 10 is of any usual construction having the usual threading slit 11 and an enlarged vertical recess 12 just behind it for connection with the slot 13 through which the thread is taken to the lateral thread-eye. In the present instance the longitudinal slit 11 is modified somewhat from the usual construction having in one wall thereof a horizontal longitudinal slot 15 cut clear through the wall between the main cavity of the shuttle and the vertical recess. This slot is located below the top of the shuttle. On the opposite side of this slit is a vertical groove 16 extending substantially to the bottom and in the bottom surface is a short longitudinal groove 17.

The attachment which comprises the automatic or self-threading device in this form consists of a single piece of wire bent to form a loop or ear 20 from which extend downwardly two legs 21 and 22 at right angles to the ear. One 01 these legs extends down slightly below the other and is bent up at 2-5 for a purpose to be brought out hereinafter. The other leg is bent transversely at the bottom substantially parallel with the loop and then extends upwardly to form a part 25 extending substantially to the level of the car 20. From this point the end 26 of the wire extends inwardly and downwardly at a sharp inclination until it passes the plane in which the two legs 21 and 22 are located coming substantially mid way between them where it terminates. hen the parts are in position the car 20 is put into the horizontal slot 15 and the part 25 into the vertical groove 16. This securely holds the parts in position and projects the tongue 26 clear across the threading slit between the legs 21 and 22. At the same time the bend 23 is located in the groove 17 at the bottom and is held in fixed position by its contact therewith. Now a pin 28 is driven through the wall of the shuttle vertically down through the car 20 and holds the device in position.

With the parts so arranged it will be seen that a thread from the bobbin laid longitudinally over the top of the threading slit and forced down into the recess 12 will necessarily pass down over the nose of the projecting end or tongue 26 and be caught under it. When once under this nose itcannot possibl move upwardly out of the threading slit as will be obvious from the construction described. It on account of the size or character of the thread it does 1 not thread into this device easily enough the bend 23 can be forced along the bottom groove 17 in which it is located so as to widen the space between the two legs. This attachment is a convenient one. It will be seen, of course, that in addition to the holding pin the vertical member 25 being located in the vertical groove assists in holding the parts in position as does the bend 23.

Although I have illustrated and described only one form of the invention 1 am aware of the fact that these principles can be carried out in other forms by persons skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore I do not wish to be limited to all the details of construction herein shown and described, but

hat I do claim is 1. As an article of manufacture, a shuttle for looms having a longitudinal theading slit, a threading device secured therein near the upper end of said slit and consisting of a piece of wire bent to form two legs extending downwardly at one side of said slit, and an integral tongue extending downwardly from the opposite side thereof between said legs, one of said legs projecting down below the body thereof, the shuttle having a longitudinal groove in the bottom of the slit for slidably receiving the end of the last named leg, whereby said leg is maintained in fixed position transversely of the shuttle, but may be bent at the bottom to occupy different longitudinal positions in the groove, thus adjusting the space between the legs to accommodate thread of different sizes.

2. As an article of manufacture, a loom shuttle comprising a shuttle body having a shuttle eye and a longitudinal threading slit extending from the body of the shuttle toward the eye, said threading slit being provided with a horizontal slot near the top thereof on one side, a vertical groove extending down the other side and with a horizontal longitudinal groove at the bottom of said slit, and a threading device in said threading slit having an integral looped projection at the top at one side entering said horizontal slot and held in position therein by a vertical pin passing through the looped projection, and having two legs extending downwardly from said looped projection substantially to the bottom of said threading slit, one of said legs being bent across the bottom of the threading slit and then upwardly and secured within said vertical groove, and extending from the top of said groove downwardly to a point between said two legs for guiding the thread into the threading device, the second of said legs projecting below the bottom of the slit and being bent longitudinally of said slit and slidably secured in said horizontal longitudinal groove, whereby said leg is maintained in fixed position transversely of the shuttle but may be bent at the bottom to occupy different longitudinal positions in the groove, thus adjusting the space between the legs to accommodate thread of difierent sizes.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

ADELARD GUILMETTE.

Witnesses C. Fonnnsr \Vrssox, E. M. ALLEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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