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April 8, 1947.
2,418,775"
H. KITTNER
‘ ART OF WEAVING WIDE MESH FABRIC
Filed May 15,1946
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April 8, 1947.
2,418,775
H. KlTT/NER
- ART OF WEAVING WIDE MESH FABRIC
Filed May 15, 1946
2 Sheets-Sheet 2
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Patented Apr. 8, 1947‘
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UNITED STATES PATENT‘ GFHQE;
2,418,775,
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 ref
erence 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
(01. 139-29)
-
1
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
10 a series of tapered teeth 22 which bar is car
ried by a cross head 23 mounted for vertical re
ciprocatory movement in aligned channel shaped
members 25 secured to the frame and forming
guide ways therefor. The channel shaped mem
bars 25 are provided with one or more stops for
limiting the downward movement of the cross
head and for positioning the teeth 22 with refer
ence to the fabric l9. IAS illustrated the stops
consists’ of headed elements 26 protruding in
.
and intermediate interstices of shorter length.
The invention also has for an object the pro
vision 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 20 wardly through openings 21 in the channel shaped
members 25 with the inner ends of the said ele
weft thread is positioned and spaced from the
ments extending into the channels thereof for
previously woven weft thread.
engagement below the crosshead 23 to limit the
With the foregoing and other objects in View
downward
movement thereof. The headed ele
reference is now made to the following speci?
ments 25 are. adapted to be selectively positioned
cation and accompanying drawings in which an
in any of the openings 21 so as to form the de
embodiment of the invention is illustrated.
sired size of interstices between adjacent weft
In the drawings:
threads.
Fig. 1 is a side view of a loom constructed in
The teeth 22 are of elongated formation and
accordance with the invention.
taper downwardly from the bar 2| so that the
Fig. 2 is a top plan view thereof.
size of the interstices between adjacent weft
Fig. 3 is an end view of the same.
threads will be in relation to the width of the
Fig. 4 is an enlarged fragmentary perspective
teeth between the tapered faces thereof at the lo
view of the spacing structure with the tapered
teeth thereof in partially inserted position be 35 cation where the teeth are disposed between the
warp threads. Thus the teeth 22 may be arranged
tween the warp threads at the base of the shed.
with
a wide portion thereof disposed between the
Fig. 5 is a fragmentary vertical sectional view
warp threads so that when the weft thread is in
showing one of the teeth of the spacing structure
sorted through the shed in advance of the teeth
in position and a weft thread beat against the
and the reed 20 beats the weft thread against the
tooth by the reed,
teeth which forms a stop therefor the spacing or
Fig. 6 is a fragmentary plan View illustrating
interstices between the cast weft thread and the
the teeth in section between the warp and weft
previously woven weft thread will be approxi
threads.
mately the width of said teeth between the ta
Referring to the drawings by characters of
pered faces thereof thereby forming a relatively
reference, the loom indicated diagrammatically
wide or open mesh fabric. If desired, alternate
by the reference character It) consists of the usual
rows may be arranged with different lengths of
construction of warp beam l l and cloth beam l2
interstices by alternately inserting the teeth at
which are mounted for rotation in any suitable
different elevations between the warp threads
frame and intermediate the said beams a pair
which
is accomplished by alternately varying the
of heddles l3 and iii are supported by the frame
position of the headed stop elements 26 in the
for vertical reciprocatory movement to form
openings Z'l.
}
sheds between rows of warp threads l5 trained
The width or distance between adjacent warp
through the eyes it of the heddles. The weft
threads may be obtained in the usual manner by
threads I‘! are passed through the open sheds
providing heddles l3 and M having eyes i 6 spaced
by means of a shuttle (not shown) after which 55 the desired distance apart so that adjacent warp
a
2,418,775
3
4
threads IS in the fabric I9 will be spaced apart
the lateral distance between the eyes of one of
spacing elements in transverse alignment between
certain of the adjacent warp threads at the base,
the headers and the eyes of the other header re
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 ele- \
spectively arranged therebetween.
In order to facilitate the positioning of the
i
ment, beating-up said weft thread against said »
teeth between the warp threads the crosshead 23
may be provided with a handle member 28 pro
spacing elements, closing said shed and remov
ing the spacing element from between the warp ‘
jecting upwardly therefrom and protruding
through the top bar connecting the channel
threads.
5. In a loom, a pair of heddles for moving
shaped members 25 for manually raising and 10
groups of warp threads to form an open shed, a
lowering the teeth 22.
reciprocatory means having transversely aligned
spacing elements adapted for movement to dis
What is claimed is:
1. The method of producing an open mesh 1
fabric by weaving comprising moving two groups ' pose the spacing elements between adjacent warp
of warp threads to form an open shed, inserting 15 threads respectively at the base of the shed,
means for inserting a weft thread through said
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 20
from between said warp threads.
I
2. The method of producing an open mesh
fabric by weaving comprising moving two groups
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 be
ing movable to withdraw the spacing means from
between the warp threads.
6. In a loom, a pair of heddles for moving
of warp threads to form an open shed, inserting
spacing elements in transverse alignment between 25 groups of warp threads to form an open shed,
transversely aligned spacing elements, means
adjacent warp threads at the base of the shed, in
serting a weft thread transversely through said
shed at the rear of said spacing elements, beat
mounting said spacing elements for reciprocatory
close said shed and withdrawing said spacing ele
ments from between the warp threads.
3. The method of producing an open mesh
shed at the rear of Said spacing elements, a reed
movable toward and away from the base of said
movement to dispose the same between certain
of said, warp threads at the base of the shed,
ing-up said weft thread against said spacing ele
ments, moving said groups of warp threads to 30 means for inserting a weft thread through said
shed for beating-up said weft thread against said
spacing elements, said heddles being movable to
of warp threads to form an open shed, inserting 35 close said shed and said spacing elements being
‘movable to withdraw the same from between the
tapered spacing elements in transverse alignment
fabric by weaving comprising moving two groups
warp threads.
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, beat
ing~up said weft thread against said spacing ele
ments, moving said groups of warp threads to
close said shed and withdrawing said spacing ele
ments from between the warp threads.
4. The method of producing an open mesh
fabric by weaving comprising moving two groups
of warp threads to form an open shed, inserting
HARRY IQITTNER.
40
REFERENCES CITED
The. following references are of record in the
?le of this patent:
FOREIGN PATENTS
Country
Date
Number
7
559,884
German _________ __ Sept. 24, 1932
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