US2418775A

US2418775A - Art of weaving wide mesh fabric

Info

Publication number: US2418775A
Application number: US669744A
Authority: US
Inventors: Kittner Harry
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-05-15
Filing date: 1946-05-15
Publication date: 1947-04-08
Anticipated expiration: 1964-04-08

Description

April 8, 1947. H. KITTNER ART OF WEAVING WIDE MESH FABRIC Filed May 15,1946 2 Sheets-Sheet 1 I0 INVENTOIL.

" 42m 1'77 r7 76 Y v April 8, 1947.

2 Sheets-Sheet 2 Filed May 15, 1946 IN V EN TOR. MW) lfirm a z M m" flz'z'ozzms'.

"' WHIP- Patented Apr. 8, 1947 UNITED ZAltJZYS STATES PATENT GFHQE;

ART OF'WEAVING WIDE MESH Fannie Harry Kittner, New York, N. Y.

Application May '15, 1946; .Serial' No. 669,744

6 Claims. 1

This invention relates to the art of weaving wide or open mesh fabric and has particular reference to the art of weaving canvas adapted to form the foundation for needlepoint and petit point tapestries and the like.

The invention comprehends a loom provided with means for spacing weft threads the desired distance apart in the weaving of canvas and the like by which an open mesh fabric is produced in which the interstices between adjacent weft threads are of the same length throughout the fabric or in which the weft threads are so spaced that alternate interstices are of the same length and intermediate interstices of shorter length.

The invention also has for an object the provision of a tapered tooth structure mounted for reciprocatory movement to dispose the teeth thereof between the warp threads prior to the incorporation of the weft thread therewith to thereby provide an abutment against which the weft thread is positioned and spaced from the previously woven weft thread.

With the foregoing and other objects in View reference is now made to the following specification and accompanying drawings in which an embodiment of the invention is illustrated.

In the drawings:

Fig. 1 is a side view of a loom constructed in accordance with the invention.

Fig. 2 is a top plan view thereof.

Fig. 3 is an end view of the same.

Fig. 4 is an enlarged fragmentary perspective view of the spacing structure with the tapered teeth thereof in partially inserted position between the warp threads at the base of the shed.

Fig. 5 is a fragmentary vertical sectional view showing one of the teeth of the spacing structure in position and a weft thread beat against the tooth by the reed,

Fig. 6 is a fragmentary plan View illustrating the teeth in section between the warp and weft threads.

Referring to the drawings by characters of reference, th loom indicated diagrammatically by the reference character It) consists of the usual construction of warp beam l l and cloth beam l2 which are mounted for rotation in any suitable frame and intermediate the said beams a pair of heddles l3 and i i are supported by the frame for vertical reciprocatory movement to form sheds between rows of warp threads l5 trained through the eyes it of the heddles. The weft threads I! are passed through the open sheds by means of a shuttle (not shown) after which guide ways therefor.

bars are provided with one or more stops for 2 each weft thread is beat on the fabric [9 by means of a reed 2e pivoted to the frame.

In order to provide means for spacing the weft threads I! so as to produce the desired size of interstices therebetween reciprocatory means is provided for insertion between the Weft threads at the base of the shed and adjacent the woven fabric 19. As illustrated the said means consists of a transversely extending bar it formed with a series of tapered teeth 22 which bar is carried by a cross head 23 mounted for vertical reciprocatory movement in aligned channel shaped members 25 secured to the frame and forming The channel shaped memlimiting the downward movement of the cross head and for positioning the teeth 22 with reference to the fabric l9. IAS illustrated the stops consists of headed elements 26 protruding inwardly through openings 21 in the channel shaped members 25 with the inner ends of the said elements extending into the channels thereof for engagement below the crosshead 23 to limit the downward movement thereof. The headed elements 25 are adapted to be selectively positioned in any of the openings 21 so as to form the desired size of interstices between adjacent weft threads.

The teeth 22 are of elongated formation and taper downwardly from the bar 2| so that the size of the interstices between adjacent weft threads will be in relation to the width of the teeth between the tapered faces thereof at the location where the teeth are disposed between the warp threads. Thus the teeth 22 may be arranged with a wide portion thereof disposed between the warp threads so that when the weft thread is insorted through the shed in advance of the teeth and the reed 20 beats the weft thread against the teeth which forms a stop therefor the spacing or interstices between the cast weft thread and the previously woven weft thread will be approximately the width of said teeth between the tapered faces thereof thereby forming a relatively wide or open mesh fabric. If desired, alternate rows may be arranged with different lengths of interstices by alternately inserting the teeth at different elevations between the warp threads which is accomplished by alternately varying the position of the headed stop elements 26 in the openings Z'l.

The width or distance between adjacent warp threads may be obtained in the usual manner by providing heddles l3 and M having eyes i 6 spaced the desired distance apart so that adjacent warp 1. The method of producing an open mesh 1 fabric by weaving comprising moving two groups of warp threads to form an open shed, inserting teeth between certain of the adjacent warp threads at the base of the shed, inserting a weft thread through said shed at the rear of said teeth, beating-up said weft thread against said teeth, closing said shed and removing the teeth from between said warp threads. I

2. The method of producing an open mesh fabric by weaving comprising moving two groups of warp threads to form an open shed, inserting spacing elements in transverse alignment between adjacent warp threads at the base of the shed, inserting a weft thread transversely through said shed at the rear of said spacing elements, beating-up said weft thread against said spacing elements, moving said groups of warp threads to close said shed and withdrawing said spacing elements from between the warp threads.

3. The method of producing an open mesh fabric by weaving comprising moving two groups of warp threads to form an open shed, inserting tapered spacing elements in transverse alignment between the warp threads at the base of the shed, inserting a weft thread transversely through said shed at the rear of said spacing elements, beating-up said weft thread against said spacing elements, moving said groups of warp threads to 4 i spacing elements in transverse alignment between certain of the adjacent warp threads at the base, of the shed and in advance of the previously woven weft thread, inserting a weft thread through said shed at the rear of said spacing element, beating-up said weft thread against said spacing elements, closing said shed and removing the spacing element from between the warp threads.

5. In a loom, a pair of heddles for moving groups of warp threads to form an open shed, a reciprocatory means having transversely aligned spacing elements adapted for movement to dispose the spacing elements between adjacent warp threads respectively at the base of the shed, means for inserting a weft thread through said shed at the rear of said spacing elements, a reed movable towards and awayfrom the base of said shed for beating-up said weft thread against said spacing elements, said heddles being movable to close said shed and said reciprocatory means being movable to withdraw the spacing means from between the warp threads.

6. In a loom, a pair of heddles for moving groups of warp threads to form an open shed, transversely aligned spacing elements, means mounting said spacing elements for reciprocatory movement to dispose the same between certain of said, warp threads at the base of the shed, means for inserting a weft thread through said shed at the rear of Said spacing elements, a reed movable toward and away from the base of said shed for beating-up said weft thread against said spacing elements, said heddles being movable to close said shed and said spacing elements being movable to withdraw the same from between the warp threads.

HARRY IQITTNER.

REFERENCES CITED FOREIGN PATENTS Country Date German Sept. 24, 1932 Number 7 559,884