US1829260A - Weft feeler for looms - Google Patents

Description

C. D. BROWN WEFT FEELER FOR LOOMS l s i! Patented Oct. 27, 1931 UNITED STATES PATENT OFFICE CARL D. BROWN, OF HOPEIDALE, MASSACHUSETTS, ASSIGNOR T'O DRAPER COBPORA TION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE WEFT FEELER FOB LOOMS Application filed May 31,

The present invention relates to side slipping weft feelers for looms and is more particularly an improvement upon the weft feeler disclosed in United States Letters Patent of Brown and Repass No. 1,593,426,

July 20, 1926.

The object of the present improvement is to insure the clinging of the feeler to the weft until it is nearly exhausted and to prevent premature side slipping especially in the event that the feeler tip encounters the taperfitng or conically wound portion of the we The improvement is illustrated in the accompanying drawings wherein- Fig. l is a plan view of so much of the feeler mechanism as is necessary for an understanding of the present invention, a portion of a bobbin and shuttle being also shown. Figs. 2, 3 and 4 illustrate dififerent modifications of the feeler tip. Fig. 5, is an enlarged cross-section on the line 55, in Fig. 2.

Referring to the drawings, A is the feeler stand and B the feeler shank which slides back and forth and slips sidewise when needful in the manner set forth in the aforesaid Brown and Repass patent. Fig. 1 illustrates the feeler tip in contact with the tapering or conical winding 0 of the weft on a bobbin D within a shuttle E at the detecting side of the loom.

The feeler tip of the Brown and Repass patent is provided with teeth formed by cutting and finishing the steed at the extreme rear face of the tip, as illustrated at F, in Fig. i. It sometimes occurs with this character of feeler tip, especially in the case of a closely wound smooth yarn such as rayon, that the feeler will slip sidewise prematurely in the event that the feeler tiCp encounters the inclined or conical portion of the weft thus resulting in a change of bobbins with consequent waste because of the substantial amount of yarn still left on the discharged bobbin. This is particularly true in case the slope of the weft encounters the rounded corner or heel G of the feeler tip instead of the teeth F.

Also, the sharp steel teeth F of the feeler may bruise the yarn and, in the event that 1929. Serial No. 367,470.

the yarn is smooth and glo-ssly like rayon, alter the appearance of the cloth.

The present improvement cures these defects .and it consists in the new feeler tip illustrated in the drawings. As in the Brown and Repass patent the feeler shank B at its rear is bent into the form of a loop with side legs H and I and laterally extending foot or connecting bar J. In accordance with the present invention the legs and heel bar of the loop are loosely encircled by a helically coiled resilient wire K which is long enough to embrace the entire loop being maintained in position because the ends of the spring bear against the closed outer end of the loop where the legs 'H and I meet.

This coiled wire K constitutes the contacting tip of the feeler and its convolutions at their rear portions alone come in contact with the weft. This is equally true in the event that the feeler tip encounters the slanting [surface C of the weft because the coils of the wire surround all portions of the feeler loop which are ever presented to the weft, including the rounded heel G. In other words, the coiled wire extends in a curve in excess of ninety degrees forwardly beyond the reach of the slanting weft threads.

The wire coils loosely encircle the feeler loop as indicated in Fig. 5, so that each convolution of the wire is free to yield both laterally and forwardly under the impact of the weft to a sufficient extent to enable them to accommodate themselves to the yarn windingsthereby engaging them adequately to prevent premature slippage and to avoid bruising or damaging the yarn.

Also, it will be noted from the drawings, that every one of the convolutions of the wire embraces a portion of the feeler loop so Fig. 3 illustrates a fine gau e wire, While Fig 1 illustrates a Wire 0 intermediate gauge. This difference in gauge is indicated by the varying number of coils of the wire in 5 each tip rather than by the diameters of the a different Wires whichare so small as to make it difficult to show proportionate diameters while retaining the appropriate numbers of coils.

10 Fig. 4 illustrates the wire coil applied'to'a feeler having cut teeth F. WVith this organization the wire'can be removed at-themill in the event, that the particular conditions of themill make the cut teeth pereferable.

15 Also, in the event thatrthe Wire wears out the ,feeler is still usable" i 1 i I a It is convenientztol.applyxthe wirecoilito the feel'er before the loopjis completely closed.

Iclaimz r i 1 1.1. Aside slipping weft feeler looped at its rear end and having a coiled resilient wire I surrounding'all portions ofithe loop which are presented to the i weft, each convolution of the wire 'ibeingcapable ofindependently yielding sidewise and'frontwardly under the impact of the weft andthe forward yielding being limited by'theloop.

7 2. .A side slipping'weft feelerlooped at'its rearend'and having a coiledresilientwire 3. surrounding'all portions of the loop which are presented to the Weft, each convolution of the .wire being capable of independently yielding sidewise and frontwardly underthe impact .of the weft;

@i 3. Aside slipping weft feeler having a lat- I erally extending. foot and a forwardly 'GX- tending heel incombination with a coiled resilient'wire tip loosely surrounding all porp tionsiofithe foot and heelwhich arezever 4 presented tothe weft, each convolution of the .wire being capableof independently yieldring sidewise and frontwardly'under the impact of theweft and the forward yielding being limited by the foot and heel. a

i 14 7 4. Aside slipping weft feeler having a laterally extending foot and a forwardly extending heel in combination with a coiled :resilient wire tip surrounding all portions of the foot andheel' which are ever presented a to the weft' each convolution of the wirebe- V V .ring capable of independently yielding sidea a wis and frontwardly underithe impact of the .we q 5. A side slipping weftfeeler havin a lat- 5 erally extending foot and a forwar ly extending'heel in combination witha' coiled resilient wire tip surrounding all portions of the foot and'heelwhich are everpresented t0 theweft. y

A 15 In witness whereof, I havehereunto signed 7 my name. 7

; "CARL D. BROWN

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