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Патент USA US2382795

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Aug. 14, 1945.
J. J. KAUFMANN
Loom HARNESS
2,382,795
,
Filed Jan. 21, 1944
2 Sheets-Sheet 1
Aug. 14, 1945.
J. J. KAUFMANN
2,382,795
LOOM HARNESS
Filed Jan. 21, 1944
2 Sheets-Sheet 2
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‘2,382,795
Patented Aug. 14, 1945
UNITED STATES PATENT OFFICE
LOOM HARNESS
John Jacob Kaufmann, Elkins Park, Pa., assignor
to Steel Heddle Manufacturing Company,
Philadelphia, Pa., a corporation of Pennsyl
Vania
Application January 21, 1944, Serial No. 519,102
5 Claims. (Cl. 139-96)
with the accompanying drawings, forming part
This invention relates to the loom harness, and
it relates more particularly to the construction
and arrangement of the heddles used in such
harness for the purpose of separating the warp
threads, to form successive sheds through which
the shuttle is passed to eifect the weaving opera
tion.
hereof, in which:
~
Fig. l is a front elevation of a group of heddles
embodying the main features of the present in
vention, portions of the heddle rods on which
they are mounted also being shown;
Fig. 2 is a side elevation thereof, the‘ heddle
'
rods being shown in section;
The invention relates more ‘particularly to that
type of heddles for loom harness which are made
'
3 is a view similar to Fig. '2, but illustrat
from thin flat metal strips, and which are now 10 ing a modi?ed form of heddle;
Figs. 4 and 5 are views similar to Figs. 1 and 2,
almost universally used for weaving textile fab
respectively, illustrating another modi?ed form;
rics.
Figs. 6 and 7 are views similar toFigs. 1 and 2,
respectively, illustrating another modi?ed form;
is to provide heddles made of thin flat strips
Figs. 8 and 9 are views similar to Figs. 1 and 2,
of metal,‘ such as steel, of such ‘construction and 15
respectively, illustrating another‘modi?ed form;
arrangement that the same will have a certain
and
desired degree of resiliency in a vertical or‘lon
Figs. 10 and 11 are views similar to Figs. 1 and
gitudinal direction, whereby there will [be an eas
2, respectively, illustrating another modi?ed form.
ing of the shock when reversals of movement of
Referring now more particularly to Figs. 1 and
the harness frames takes place during the shed 20
. The principal object of the present invention
2 of the drawings, the heddles 20 there shown
are in the main of a common‘and well known
A further object of the invention is to provide
type, commonly used in the weaving of textile
heddles of the character aforesaid in which the
fabrics, the same preferably being made of thin
heddles will be flexible longitudinally whereby
there will be less tendency to break such of the 25 ?at strips of steel wire each provided at its re
spective central portion with the usual warp‘ con
warp threads as are tighter than the main body
trolling eye 2|. At each end of each heddle
of the warp.'
20 there is also provided a mortise 22 for mount
, It is understood that hereto-fore attempts have
ing the heddles on the heddle rods 23 which are
been made in various ways to provide heddles hav -'
ing a certain amount of ?exibility, but none of 30 suitably supported in the heddle frames (not
shown). The method of formation of the warp
the structures or devices for this purpose hereto
ey-es 2| and mortises 22 is preferably that which
fore suggested have proved to be practical, and
is Well known and commonly practiced in the in
particularly the same are not adaptable for use
dustry.
in connection with the high speed looms at pres
In the form of the invention shown in Figs. 1
35
ent in common use.
and 2 of the drawings there is provided, adjacent
With the foregoing objects in view, the inven
the upper heddle supporting rod 23, on each
rtion contemplates the provision of heddles made
heddle 20, a portion 24, bent in reverse curvature
of thin flat met-a1, provided at their central por
in a form or shape somewhat similar to an elon
tions ‘with the usual warp controlling eyes, at
their ends with mortises for mounting the same 40 gated. 8, parts of which are de?nitely disposed
outside the plane of the main or body portion of
on the heddle rods of the frames, and provided
the heddle 20. At the place where the ‘bent out
with means above or below the shed lines for im
ding operations.
portion 24 is provided, the heddle 20 may be left
[the full width of the strip as shown in Fig. 3,
but preferably the same is cut away at the sides,
parting ?exibility longitudinally to the individual
heddles, said means comprising the bending of a
portion of the metal out of the main plane of the
[body portion of the heddle, reducing the vcross’
sectional area. of the bent out portions, and pro
viding the heddles, if desired, with spacing de
vices either for use in connection with draw
ing-in machines or to insure freedom of move
as at 25, thereby to provide a reduced area of
cross-section in the bent portion, and thus pro
viding greater ?exibility when strain is imparted
to the heddle in a longitudinal direction. ‘
50 - In the form of the invention shown in Figs. 4
ment of the warp when the shedding takes place.
The nature and characteristic features of the
invention will be more readily understood from
_ the following description taken in connection 56
and 5 of the drawings each of the heddles 20 is
provided with bent out portions 24 at both the top
and bottom, in each instance, however, being lo
cated at a point where the same is disposed be
yond the plane of the sheet of warp when the
2'
..
2,382,795
.
shed is formed. Also in this form the reduction
in the cross-sectional area of the bent out por
tions 24 is effected by slotting the strip at this
point as at 26.
In the form of the invention shown in Figs. 6
and 7 of the drawings the bent out portion 24a
is in the shape of a ?attened V. Hereagain, how
ever, the reduction in the cross-sectional area is
the plane of the main body portion of the heddle
to provide longitudinal ?exibility, said bent out
portions being disposed between said straight por
tions and the end mortisesand being cut away to
provide a reduced cross-section of said bent out
portions.
2. In a loom harness,‘ a plurality of heddles for
controlling the warp ends, rods i'or ‘supporting
obtained by slotting the strip as at 26 at the point
said heddles, each of said heddles being made of
where the bent out portion 24a is provided.
1 310.. ae'thin ?at metal strip having a central warp eye
In Figs. 8 and 9 of the drawings there is shown ' vand having mortises at each end for mounting
another form of the invention somewhat similar
said’ heddles on said rods, each of said heddles
to that shown in Figs. 6 and '7~.-' In this ‘case, -how- - ‘ also having a straight portion extending above
ever, the bent out portions ?aare provided at ‘ 7 and below the central warp eye to a point beyond
both the top and bottom of the'hed'dIe‘s'ZO', ‘in
each instance, however, being beyond the plane
the shed line and having portions bent out of the
plane of the main'body portion of the heddle to
. provide longitudinal ?exibility, said bent out por
of the sheet of warp when the shed is formed- , , .
In Figs. 10 and 11 of the drawings there is
tions being disposed between said straight portions
shown still another modi?ed form of theinven
' and the end mortises, and certain of the heddles
tion in which the heddle 204 is bent at the desired
locatiornas at 241), vout‘ of the plane of the’ main
having spacing projections adjacent said bent out
body portionv of theheddle 20,‘ ‘continuing‘in a
straight inclined 'dire‘ction'for'the desired [dis
tance, and then being bent back to cause the end
portions to be‘ disposed parallel ‘.to' that? of the
'3. In a loom harness, a plurality of heddles for
portions.
and the bends arejprovided preferably at the' top ,
'
'
‘If desired,‘ anyof'the various forms'mayv be
which may'be‘formed, for example, asv described
and shown in my‘ previous Letters ‘Patent No.
1,970,175,‘ which will serve not only to‘ assist in
the manipulation of the heddle when the entering
’
’
"
"
’
'
'
‘
and below the central warp eye to a point beyond
' the shed line and‘ having portions bent‘ out of the
to provide a reduced’ cross-section of said bent out
portions,‘ and certain of the heddles having spac
ing projections adjacent said bent out portions.
is done by means of a warp drawing-in machine,
but will alsoinsure greater freedom of movement
eration ofthe loom}.
,
plane of the main body portion of the heddle to
provide longitudinal ?exibility, said bent out por
tions being‘disposed between, said straight por
tions and the end mortises and being cut away
provided‘ with suitable spacing projections , 21
of the warp as the she'dding'takesplace in the op
,
a thin ?at metal strip having a central. warp eye
the bent portion byisibttingthe stripes- at 26,‘
‘ ,
‘
and having mortises at each end for mounting
said heddles on said rods, each of said heddles
also having a‘ straight portion extending above
is provided a reduction'jn‘ cross-sectional area ‘at
'
'
controlling the Warp ends, rods‘ for supporting
saidv heddles, each of said heddles being made of
plane of the main body‘pofrtion. ' Here again there
and bottom of eachlie'ddle. ‘
‘
4. In a loom harness, a plurality of heddles for
J controlling the warp ends, rods for supporting
it said heddles, each of‘said heddles being made of
It will of course. beap'parent that the bent out .
portion of vthe heddles in a particular frame will
a thin ?at metalstrip having a central warp eye
be disposedv at the same‘ longitudinal locations,
said heddles on saidrods, each of said heddles also
having a straight portion extending above and
below the central warp,v eye to. a point beyond the
shed line and having portions bent out of the
plane ofv themain body portion of the heddle
so that saidbent'out portions will readily nest
with respect to each other.
'
., >
‘By ‘the construction and" arrangement inac
cordance with the present inventibnthere ispro
vided an improved type of, heddle which. will not
and having mortises at each: end for mounting
to provide longitudinal ?exibility, said bent out
only serve to relieve the strain when the ‘shed is
portions being disposed‘ ‘between said straight
portions and the-end mortises and being ‘slotted
to provide a reduced’ cross-section of said bent
formed, but will! also operate effectively- to relieve
the shocks caused, by. the inertia of the heddle
masses when the reversal or movement takes place
as'the heddle frames are raised and lowered -in;the,
operation. of theloom. Heddles of this type ‘will '
also serve to relieve individually vthewtension of '
out portions.
unduly tight Warp ends, andthus minimize break
age of the same and the. consequent stoppages of
said heddles, each of said heddles being made of a
.
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5. In a loom harness, a plurality of heddles for
controlling the warp. ends, rods 'for supporting
thin ?at‘ metal strip having a ‘central warp’Teye
and having'm'ortises at each end. for mounting
said heddleson said rods, each of ‘said heddles
the loom forthe purpose o'ftying up broken ends.
1. In a loom harness, a plurality of heddles for 60 also having, a'st‘raight portion ‘extending above
and below the central warp eye and‘ having por
controllingv the warp ends, rods for supporting
said heddles, each of said heddlesbeingtmadeof
tions bent out of the-‘plane, of the main body por
tion of the heddle to provide longitudinal ?exi
a thin ?at metal strip having a central warp eye
and having mortises at eachv end for mounting
said heddleson'said rods, each of said heddles
also having a, straight portion- extending above
and below the central warp eye toa point beyond
the shed line, and having portions bentv out of
bility, said bent out portions: being disposed be
65
tween said straight portions and the end mortises
and being cut away to‘provide a reduced cross
sectionofsaid bent out portions.
‘JOHN JACOB KAUFMANN.
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