US1503860A - Feeler for looms - Google Patents

Description

Patented Aug. 5, 1924.

UNETED STATES PATENT FFW.

EDWARD S. STIMPSON. OF EHOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COR- ?ORATION, OF HOPEDALE, MASSACHUSETTS, A. CORPORATION 0F MAINE.

Application filed March 25, 1921. Serial No. 455,533.

To all 'whom t may, concern:

Be it known that I, EDWARD S. STIMPsoN, of Hopedale, in the county of Worcester and `State of Massachusetts, have invented a new Feeler for Looms, of which the fol# lowing is a specification. f

The invention is ,an improvement upon the feeler mechanism set forth in United States Letters Patent No. 1,309,226, July 8, 1919, and consists in the feeler construction.

In accordance with the present invention., the feeler is constructed so as to contact with the weft more closely into the angle between the head and shank of the bobbin than in the case of the feeler illustrated in Vthe aforesaid patent. This is especially important in the case of bobbins for special weaves, such as mohair, upon which the initial windings of weft are wound close to the angle between the head and shank of the bobbin.

The improvement is illustrated in the accompanying drawings, wherein- Figure 1 is a plan View of the feeler mechanism showing the feeler tip in con` tact with the weft on a full'bobbin. Fig. 2 is a -plan view showing the action of the feeler tip when the weft is at the critical stage of exhaustion. Fig. 3 is a cross-section in the plane indicated by the line 3-3 in Fig. 1.

The drawings illustrate a bobbin sucn as is employed with'mohair weaves, wherein the corrugated shank A is formed with alternating depressions and projections, the initial windings B of weft being wound in the depression which is close to the angle between the shank and head C of the bob bin. It is apparent from a comparison between the organization shown infthe aforesaid Stimpson patent and that illustrated in the accompanying drawings, that with the organization of said patent the feeler would perform its side-slipping movement long before the weft in its unwinding reached the condition shown in Fig. 2 of the accompanying drawings.

In accordance with the present invention, the laterally slipping guided feeler shank D is outwardly bent toward the head of the bobbin, as shown at E, at its rear, and is thence inwardly bent to form the extending toothed tip F, at the extreme rear of the feeler. This tip extends laterally from the rear bend of the feeler shank and inwardly toward the mouth of the shuttle box. By reason of this construction the teeth on the feeling surface of the tip are brought closer to the head of the bobbin than would otherwise be the case. As shown in the drawings,`the relation between the feeler yarm and the tip is such that a rearward prolongation of the inner face G, or the feeler" shank intersects the toothed portion of the tip F. With this construction, the feeler teeth continue to contact with the weft until it is so far exhausted that thc toothed end of the feeler comes in Contact with the first projection c on the bobbin shank beyond the depression near the bobbin head in which the initial bunch B of weft is wound. Fig. 2 shows in dotted lines the position of the feeler tip when its toothed face effectively encounters this initial bobbin shank projection. As the tendency of the feeler to slip sidewise is no longer resisted by the weft, the feeler tip slips laterally on the smooth surface of the bobbin shank to the position indicated by the full lines in Fig. 2, thereby setting into motion the train of weft replenishing mechanism as set forth in the aforesaid patent.

Fig. 1 of the present drawings shows the parts of the feeler mechanism which inimediately cooperate with the feeler arm. These cooperating parts are the same as those of the aforesaid patent. It now suffices to say that the feeler shank is moved forwardly by the impact of the bobbin, and it is moved rearwardly by a spring H. The feeler shank is guided by the front swivel guide I, and the rear slotted guide J. When the feeler arm slips laterally indicated in Fig. 2, a controller K, is moved laterally, thereby initiating the actiony of the weft replenishing mechanism whereby replenishment of weft occurs before the running weft is completely exhausted. The feeler teeth are shown as similar to those set forth in Letters Patent of the United States, No. 1,380,940, June 7, 1921.

It will be noted from the drawing that the shank of the feeler inclines laterally and inwardly with respect to the front wall of the shuttle and to the shuttle box frontv` so that the impact of the weft tends to cause the feeler to slip laterally and inwardly away from the head of the weft carrier and toward the shuttle box mouth,

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as indicatedin Fig; 2. The bend E at the rear of the feeler extends laterally and outwardly from the rear of the shank toward the head ofthe bobbin and in a direction l shuttle box mouth, and, as the result, the

eeler teeth arebrought close to the initial weftiwindings near the head of the bobbin,

I 'claim- An inclined side-slippingl feeler having its shank laterally and inwardly inclined with respect to the front wall of the shuttle and to the shuttle box front so that the impact of the weft tends to cause the feeler in a direction laterally and outwardly Y clinedwith respectrto the front wall of the shuttle, and said klieeler having a toothed tip extending laterally and inwardly from the extreme-rear `otsaid outward bend Vtoward the shuttle box mouth, whereby the teeth are brought close tothe initial weft windings near the head of the bobbin. Y

In witness whereof, I have hereunto signed my name. Y Y Y v EDWARDS. sTIMPsoN.Vv

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