US2033800A

US2033800A - Harness for cross weaving

Info

Publication number: US2033800A
Application number: US27306A
Authority: US
Inventors: Hugh H Wood
Original assignee: Steel Heddle Manufacturing Co
Current assignee: Steel Heddle Manufacturing Co
Priority date: 1935-06-19
Filing date: 1935-06-19
Publication date: 1936-03-10
Anticipated expiration: 1953-03-10

Description

arch m, 13. I WOOD HARNESS FOR CROSS WEAVING Filed June 19, 1955 I Inzieniwr:

Patented Mar. 10, 1936 v UNITED STATES PATENT OFFICE HARNESS FOR CROSS WEAVING Hugh H, Wood, Westminster, S. C., assignor to Steel Heddle Manufacturing Company, Philadelphia, Pa., a corporation of Pennsylvania Application June 19, 1935, Serial No. 27,306

7 Claims. (Cl. 139-52) This invention relates to loom harness for use Each of said doup needles has at one end in that method of weaving known as cross weavthereof an eye portion l2, in which the eye l3 ing (sometimes called leno, doup, or gauze weavfor control of a warp end is located. The outer ing), in which the warp threads, arranged in margin. I4 of the eye portion I2 of each doup 5 pairs, are crossed or twisted about each other needle is arched or curved, while the inner mar- 5 for successive picks, whereby the weft is bound gin l5 of said eye portion is preferably flat. more firmly than in plain weaves. Extending from the eye portion l2 of each The principal object of the present invention is doup needle are two legs [6 which terminate in to provide metallic harness forcross weaving enlarged portions l'l, each of which is provided which will be simple, durable, and efficient, and with a slot l8 for connection of the doup needle 10 which is so constructed and arranged as to elimiwith the means for holding the eye portions of nate the necessity for the jumper harness and the doup needles in engagement, with the eye the slackener mechanism which are commonly portions of the control heddles, which may be of used in connection with metallic harness for cross any of the forms which are common and well weaving. known in the art. 15

A further object of the invention is to provide There are provided three standard or control loo-m harness of the character aforesaid in which heddles, 20, 2|, d e tW outer heddles crowding will be minimized, thereby to provide and Zlmay be of identical conformation, one, greater freedom in the shedding. however, being turned end for end with respect 20 A further'object of the invention is to provide to the other. The standard or control heddles 20 loom harness of the character aforesaid, in the 20 and 2| are made of thin flat metal or wire, use of which the shedding mechanism may be each of said heddles having an angularly extendimplified, ing portion 23, whereby the part 24 at one end of The nature and characteristic features of the h y p ion f th hed e i f et la era ly 25 invention will be more readily understood from with respe h P 25 at he other end 25 the following description, taken in connection there t afford freedom of action of the d up with the accompanying drawing forming part needle as well as of the warp when the shedding hereof, in which: I Occurs- Figure 1 is an elevational view of a set of The central strip 26 of the eye portion of each 30 heddles and doup needles for controlling a pair of the outer standard or control heddles 20 and 30 of warp ends which are to be twisted about each 2| is pun d and p ss d u f t a n p an other at successive picks during the formation of the heddle (see Fig. 4), thereby permitting of the weave, the same embodying the main the eye portion I2 of the doup needle II to be features of the present invention; disposed in the eye provided betw d Fig. 2 is an enlarged elevational view of the punched out strip 26 and the

side strips

21, 35 central, portion of the structure shown in Fig. 1, Without distorting said doup needle, which, as the parts being shown in positions assumed in hereinbefore set forth, is also preferably punched the formation of a shed; from thin flatmetal. The side strips 21 are also Fig. 3 is a view similar to Fig. 2, showing the preferably pressed out of the main plane of the parts in the positions assumed at a succeeding d as shown in Fig. 4. 40 pick; and The central portion of the middle standard or Fig, 4 is a d 1 ti 1 i of th t l control heddle 22 is formed in a like manner to portignof one 01' th t d d or ntr l h dd1 that of the outer standard or control heddles 20 It will, of course, be understood that the deand also hav an a ularlv x nd p rscription and drawing herein contained are iltion whereby the pp p 34 of said heddle 45 lustrative merely, and that various modifications is Offset laterally w p t to t lower part and changes may be made in the structure dis- 35 thereof- Likewise. the y p t on of said closed without departing from the spirit of the middle heddle 22 has a Central Strip 3 punched invention. and pressed out of the main plane of the heddle,

5 In carrying out the present invention, two doup thereby Permitting the ey po tion l2 of each needles lll'and H are employed, which are prefof the doup needles l0 and II to be disposed in erably of the form shown in the Kaufmann Patent the e pr d d tw sa pu d ut s p No. 1,037,151, dated August 27, 1912, and are 36 and the side strips 31 of said heddle, without preferably made by punching or stamping from distortin the p d e.

a thin flat strip of metal. The central strip 26 and the "side strips 21 of 55 each of the outer standard or control heddles 20 and 2|, as well as the central strip 36 and the side strips 31 of the middle standard or control heddle 22, follow the contour of the bend or offset in the respective eye portions of said heddles. These strips ordinarily extend from points in the straight portions of the respective heddles beyond the bend or offset at each end thereof.

The standard or control heddles may be mounted, by means of'the heddle and eyes' 40 provided in the ends thereof, in harness frames (not shown) of the type commonly employed for" the mounting of heddles for plain weaving, and the shedding mechanism employed may be of a very simple character. Itshould be noted that the outer heddles 20 and 2| are ordinarily operated in unison, the same being raised' together when the middle heddle 22 is lowered, and being lowered together when the middle heddle 22 is elevated.

Hence it will be seen that a simple shedding mechanism may be employed in connection with the harness. It should be understood, however, that the doup needles I and. H are preferably under spring tension or otherwise actuated so that the eye portions l2 of the same will at all times be held retracted against the end portion of the eye of one of the standard or control heddles.

In Fig. 1 of the drawing, the parts are shown in what might be termed a neutral position, the same illustrating a transitional stage in the manipulation of the warp ends.

When a shed is formed, the warp end A is always elevated, and the warp end B is always lowered. It will be noted, however, that the doup needle 1 l for controlling the warp end A may be alternatively raised, either by the outer stand.- ard or control heddle 2| as shown in Fig. 2, or by the middle standard or control heddle 22 as shown in Fig. 3.

Likewise the doup needle ID, by means of which the warp end B is controlled, is always lowered, either by the middle standard or control heddle 22 as shown in Fig. 2, or by the outerstandard or control heddle 20 as shown in Fig. 3.

It will be noted that, by the arrangement of the present invention, the utmost freedom of the warp will be obtained and crowding in the harness will be greatly minimized, there will be no likelihood of fouling of the respective warp ends, and shedding mechanism of a simple character may be employed.

I claim:

1. In harness for cross weaving, a set of harness members for controlling a pair of warp ends comprising a pair of doup needles eachhaving an eye portion through which a warp end extends, a control heddle engaging one of said doup needles, another control heddle engaging the other of said doup needles, and a third control heddle engaging both of said doup needles.

2. In harness-for cross weaving, a set of harness members for controlling a pair of warp ends comprising a pair of doup needles each having an eye portion through which a warp end extends,

a control heddle engaging one of said doup needles, another control heddle engaging the other of said doup needles, and a third control heddle engaging both of said doup'needles, each of said control heddles having an eye portion through which portions of a doup needle extend.

3. In harness for cross weaving, a set of harness members for controlling a pair of warp ends comprising a pair of doup needles each having an eye portion through which a warp end extends, a control heddle engaging one of said doup needles, another control heddle engaging the other of said doup needles, and a third control heddle engaging both of said doup needles, each of said control heddles having an eye portion through which portions of a doup needle extend, said eye portion having an angularly extending portion'whereby the part at one end of the eye portionof the heddle is offset laterally with respect to the part at the other end thereof.

4; In harness for cross weaving, a set of harness members for controlling a pair of warp ends comprising a pair of doup needles made from thin fiat metal each having an eye portion through which'a'warp end extends, a control heddle engaging one of said doup needles, another control heddle engaging the other of said doup needles, and a third control heddle engaging both of said doup needles, each of said control heddles being made of thin flat metal and having an eye portion through which portions of a doup needle extend, said eye portion having an angularly extending portion whereby the part at one end of the eye portion of the heddle is ofiset laterally with respect to the part at the'other end thereof.

5. In harness for cross weaving, a set of harness members for controlling a pair of warp ends comprising a pair of doup needles made of thin flat metal each havingan eye portion through which a warp end extends, a control heddle engaging one of said doup needles, another control heddle engaging the other'of said doup needles, and a third control heddle engaging both of said doup needles, each of said control heddles being made of thin fiat metal and having an eye portion through which portions of a doup needle extend, said eye portion comprising a central strip and two side strips.

6. In harness for cross weaving, a set of'harness members for controlling a pair of warp ends comprising a pair of doup needles made of thin flat metal each having aneye'portion through which a warp'end extends, a control heddle engaging one of said doup needles, another control heddle engaging the other of said doup needles,

and a third control heddle engaging both of said doup needles, each of said control heddles being made of thin flat metal and having an eye portion through which portions of a doup needle extend, said eye portion comprising a central strip and two side strips, said strips being punched and pressed out of the main plane of the heddle.

7. In harness for cross weaving, a set of harness members for controlling a pair of warp ends comprising a pair of doup needles made of thin flat metal each having an eye portion through which a warp end extends, a control heddle engaging one of said doup needles, another control heddle engaging the other of said doup needles, and a third control heddle engaging both of said doup needles, each of said control heddles being made of thin flat metal and having an eye portion through which portions of a doup needle extend, said eye portion having an angularly extending portion whereby the part at one end of the eye portion of the heddleis offset laterally.

with respect ot the part at the other end thereof, and said eye portion comprising -'a central strip and two side strips, 1 said strips being punched and pressed out of the main plane of the heddle.

HUGH- I-I: WOOD.