US3428094A - Loom harness - Google Patents

Description

United States Patent Oflice 3,428094 Patented Feb. 18, 1969 3,428,094 LOOM HARNESS Frank H. Kaufmann, Huntingdon Valley, Pa.,assignor 10 Steel Heddle Manufacturing Company, Philadelphia,

Pa., a corporation of Pennsylvania Fiied June 5, 1967, Set. N0. 643,510

U.S. Cl. 139-91 Iut. C]. D03c 9/06;D02h 13/16;D01h 11/04 4 Claims ABSTRACT OF THE DISCLOSURE Heddles for the harness of weaving looms with separating provisions at the warp controlling eyes of the heddles preventing nesting of the heddles.

BACKGROUND OF THE INVENTION Field f the inventz'on This invention relates to loom harness and more partieularly to the heddles in harness of the type used in water jet looms.

Description 0 the pri0r art SUMMARY OF THE INVENTION It is the principal object of the present invention to provide an improved heddle construction at the warp eyes for providing a separation of the heddles at the warp eyes thereby eliminating nesting of the heddles It is a further object of the present invention to provide an improved heddle construction Which is simple laut eflective for preventing nesting of heddles at their warp eyes, and particularly in water jet looms.

It is a further object of the present invention to provide an improved heddle construction in which, in a preferred embodiment, alternate heddles, at their warp eyes are shaped to prevent nesting.

Other objects and advantageous features of the inven tion will be apparent from the description and claims.

BRIEF DESCRIPTION OF THE DRAWING The nature and characteristic features of the invention Will be more readily understood from the following description taken in connection with the accompanying drawings forming part thereof, in which:

FIGURE 1 is a view in elevation of One of a pair of related heddles in accordance with the invention, the rods upon which the heddle is mounted being shown in section;

FIG. 2 is a view similar to FIG. 1 showing in elevation another of a pair of related heddles in accordance with the invention;

FIG. 3 is a front elevation of a pair of heddles of the type shown in FIGS. 1 and 2, and illustrating the separating action at the warp eyes, parts of the heddles being omitted; and

FIG. 4 is a fragmentary perspective view of the mid portions of a pair of related heddles.

It should, of course, be understood that the description and drawings herein are illustrative merely, and that various modifications and changes can be made in the structure disclosed without departing from the spirit of the invention.

Like numerals refer to like parts throughout the several views.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring W more particularly to thedrawings heddle rods 10 and 11 of well known type are shown, these being mounted as is well known in harness frames (not shown).

A multiplicity ofheddles 12 and 13 are mounted on theheddle rods 10 and 11, in a well known manner.

Theheddles 12 and 13 are preferably made of thin flat strips of metal, initially of a uniform width corresponding to the widest portion of the heddle. Thecentral ortion 14 of eachheddle 12 or 13, and theend portions 15 are preferably the full Width of the strip and theparts 16 of theheddles 12 and 13 are sheared down to a narrower width to provide greater flexibility in the heddles and to reduce the total Weight of the harness.

Theend portions 15 of eachheddle 12 and 13 are each provided with aslot 18 for mountin-g on therods 10 and 11 and theslots 18 may have central portions cut away on one side, as at 19, to permit free end to end movement of theheddles 12 and 13 on theheddle rods 10 and 11 and past any center braces and intermediate heddle rod supports, in a well known manner.

Alternate heddles of theheddles 12 and 13 may havespacing projections 20, of well known type, engaging straight portions of contiguous heddles to insure greater freedom of movement of the warp during shedding as well as to facilitate drawing in of the warp.

Thecentral portions 14 cf each of theheddles 12 and 13 may be provided with oppositely downwardly and up- Wardly pointingkeyhole slots 21 and 22 for engagement by the drawing-in machine employed -for entering the warp in the warp eyes.

Thecentral portions 14 of each cf theheddles 12 and 13 are provided with punchedwarp eyes 23 and 24 to receive and control the warp during the weaving operation.

One of the warp eyes of a related pair ofheddles 12 and 13, such as thewarp eye 23, has theshanks 25 thereof formed in bowed conformation and to a predetermined distance from and on opposite sides of the main plane of thecentral portion 14.

The other of the warp eyes of a related pair ofheddles 12 and 13, such as thewarp eye 24, has theshanks 26 thereof also in bowed conformation and to a different predetermined distance, in this instance less than the deformation of theshanks 25 from and also 0n opposite sides of the main plane of thecentral portion 14. Theshanks 25 and 26 are preferably respectively olfset in the same directions rather than in respectively opposite directions so that in successive heddles the engagement of One of theshanks 26 with acontiguous shank 25 is obviated by reason of the diiferent shaping or curvature of the shanks, spacing of the remainder of thecentral portions 14 of theheddles 12 and 13 is eflected and adherence ofheddles 12 and 13 at thewarp eyes 23 and 24 is prevented. At the same time relatively close spacing of theheddles 12 and 13 can be effected and the space within the harness frame utilized.

It will thus l: e seen that provisions have been made f01' attaining the objects of the invention.

I claim:

1. Loom harness comprising a plurality of heddles of thin flat strips top and bottom mountings,

each of said heddles having a central portion intermediate the top and bottom mountings provided With a warp eye,

of metal having each of said warp eyes having its shanks Offset in opposite directions from the main plane of the cantral portion,

the shanks of the warp eye of one heddle being Offset to a greater extent in a predetermined direction than the corresponding shanks of the warp eye of an adjoining hedd1e thereby to space the heddles at their warp eyes.

2. Loom harness as defined in claim 1 in which said heddles have the corresponding s'hanks of successive heddles offset in the same direction.

3. Loom harness as defined in claim 1 in which successive heddles at the central portions have oppositely pointing keyhole slots.

4. Loom harness as defined in claim 1 in which said heddles contiguous to the top and bottom mountings 11ave additional spacer members.

References Cited UNITED STATES PATENTS 687,541 11/1901 Palmer 13996 X 2,147258 2/1939 Kaufmann 13996X 2426,456 8/ 1947 Kaufmann 13996 X 3162215 12/1964 Saite 139-91 10 3349811 10/1967 Kaufmann 13996 JAMES KEE CHI, Primary Examiner.

U.S. C1. X.R. 15 139-96

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