US2923327A - Shuttles for narrow fabric looms - Google Patents

Description

Feb. 2, 1960 L. 1.. RiTSKY 2,923,327

SHUTTLES FOR NARROW FABRIC LOOMS Filed Feb. 6, 195a Z oats .GM ATTORNEY United States Patent SHU'ITLES FOR NARROW FABRIC LOOMS Louis L. Ritsky, Philadelphia, Pa.

Application February 6, 1958, Serial No. 713,744

3 Claims. (Cl. 139-201) This invention relates to shuttles for narrow fabric looms, and it relates more particularly to the thread guides used in such shuttles in connection with the devices used for taking up the slack in the filling yarn during the operation of the loom, thereby to maintain the proper tension on the filling yarn as it is laid in the shed.

Heretofore, in shuttles for narrow fabric looms, it has been customary to use a thread guide for directing the filling yarn, as it leaves the bobbin, to an eye at the end of one of the coil springs which are customarily used as part of the means for taking up the slack in the filling, and another and separate guide through which the filling yarn passes to the exterior after it leaves the eye of another coil spring which also forms part of the means for taking up the slack.

Heretofore, the most popular form of thread guides used in shuttles for narrow fabric looms, for directing the yarn from the bobbin to the first of the takeup springs comprised a ring member of hard material which was loosely mounted on a bowed wire loop secured to a portion of the shuttle, and the outlet eye comprised a separate sleeve like member extending through a portion of the frame of the shuttle.

The principal object of the present invention is to provide in loom shuttles, and particularly in shuttles for narrow fabric looms, an improved unitary thread guide which will serve a double purpose of directing the filling yarn as it passes from the bobbin to one of the tension springs, and as an outlet eye for the filling yarn as it passes from the other of the tension springs to the exterior of the shuttle to be laid in the fabric as the shuttle is passed back and forth through the successive sheds of the warp.

The nature and characteristic features of the present invention will be more readily understood from the following description, taken in connection with the accompanying drawing forming part thereof, in which:

Figure 1 is an elevational view, partly in section, illustrating a conventional narrow fabric loom shuttle provided with a thread guide embodying the main features of the present invention;

Fig. 2 is a fragmentary detail view, enlarged, partly in section, illustrating the novel unitary thread guide of the present invention mounted in a portion of a shuttle, the illvrew1 being taken approximately on the line 2-2 of Fig. 3 is a transverse section taken on the line 33 of Fig. 2; and

Fig. 4 is a perspective view of the thread guide detached and further enlarged.

It should, of course, be understood that the description and drawing herein are illustrative merely, and that various modifications and changes may be made in the strut ICC ture disclosed without departing from the spirit of the invention.

Referring to the drawing, the shuttle may be of the usual form commonly used in narrow fabric looms, preferably made of wood or the like, and consisting of a main body portion 10 from which projects a U-shaped frame, providing a hollow interior across which extends the usual spindle 11, for the bobbin 12 of the filling yarn F.

The shuttle may also be provided with the usual friction member 13, one end of which is hingedly mounted within the shuttle, and the other end of which bears against the bobbin 12 under the tension of the spring 14.

The shuttle may also be provided, preferably in holes in the arm portions of the shuttle body with tension springs 15 made of fine piano wire, each spring being secured at one end, as at 16, in the body portion 10 of the shuttle, and each having, at its other or free end, an eye member 17 through which the filling yarn F passes.

The thread guide of the present invention is a single unitary device made of glass, porcelain, or other hard material, the main portion of which comprises a sleeve 18 extending through the transverse portion of the bow or frame of the shuttle, the filling yarn passing therethrough to the exterior. Integrally joined to the inner end of the sleeve 18 is another eye portion 19 which has its axis extending at right angles to the axis of the main sleeve portion, in a plane separated therefrom, but preferably parallel thereto.

The operation of the device will be quite apparent, and by reference to Fig. 1 of the drawing, it will be noted that the yarn F coming from the bobbin 12 passes through the eye 19 of the guide device of the present invention, thence passing through the eye 17 at the end of one of the tension springs 15, and then through the eye 17 at the end of the other tension spring 15, thence passing through the sleeve portion 18 to the exterior, to be laid in successive sheds of the warp during the operation of the loom.

The device of the present invention will be found to be simple, efficient and more certain in its action, more easily threaded than has heretofore been possible, and more economical in its construction and arrangement.

I claim:

1. In a shuttle for narrow fabric looms, a unitary thread guide made of hard material and comprising two integral eye portions one of which eye portions is offset with respect to the other eye portions and has its axis extending transversely to the axis of said other eye portion.

2. In a shuttle for narrow fabric looms, a unitary thread guide made of hard material and comprising two integral eye portions one of which extends through the frame of the shuttle, and the other of said eye portions being offset and having its axis extending transversely to the axis of the eye portion which extends through the frame of the shuttle.

3. In a shuttle for narrow fabric looms, a unitary thread guide made of hard material and comprising a sleeve like eye portion extending through a portion of the shuttle, said sleeve like eye portion having, on its interior end, another integral eye portion the axis of which extends transversely to the axis of the main sleeve like portion and is offset with respect thereto.

References Cited in the file of this patent UNITED STATES PATENTS 649,141 Rawlings May 8, 1900 979,203 Reiif et al Dec. 20, 1910 1,737,138 Baader Nov. 26, 1929

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