An Improved Doup-heddle for Cross Weaving.
Year: 1891

page_text: Date of Application, 8th June, 1891
Complete Specification Left. 8th Mar.. 1892-Accepted. 9th Apr., 1892
PROVISIONAL SPECIFICATION.
An Improved Doup-heddle for Cross Weaving.
We, RICHARD WHARTON, of 2806 Palethorp Street, Philadelphia, State of
Pennsylvania, U.S.A. Loom Fixer and JAMES BRICE PATTERSON, of 1914 East
Cumberland Street, Philadelphia, State of Pennsylvania, U.S.A. Manufacturer of
Woven Fabrics, do hereby declare the nature of our invention for DOUP-HEDDLES.
FOR CROSS WEAVING to be as follows :-
:-
The invention belongs to a class of loom heddles for cross-weaving, known as.
"Doup-heddles," and consists in constructing the full heddle of flat sheet metal,.
slotted, and provided with a perforated cross-bar, about midway the length of the
slot, and a half heddle made of a narrow flat strip of metal, having an eye at the
top, for the warp thread, and a small hole at the bottom, by which hole at.
the bottom, the half heddle is connected by a wire link to the full heddle; the half
heddle works in the perforated cross bar of the full heddle, and in this perforated.
cross bar, the half heddle slides up and down, first on one side of the crossed warp:
thread, and then on the other.
Dated this Fifth day of June 1901
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent..
COMPLETE SPECIFICATION.
An Improved Doup-heddle for Cross Weaving.
We, RICHARD WHARTON late of 2806 Palethorp Street and now of 2914 North.
Third Street, Philadelphia, State of Pennsylvania, U.S.A., Loom Fixer, and.
JAMES BRICE PATTERSON, of 1914 East Cumberland Street, Philadelphia,
State of Pennsylvania, U.S.A., Manufacturer of Woven Fabrics, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
"
This invention belongs to a class of loom heddles for cross-weaving, known as.
Doup-heddles," and consists in constructing the full heddle of flat sheet metal,
slotted and provided with a perforated cross-bar, about midway the length of the.
slot, and a half heddle made of a narrow flat strip of metal, having an eye at the
top for the warp thread, and a small hole at the bottom, by which hole at
the bottom, the half heddle is connected by a wire link to the full heddle. The
alf heddle works in the perforated cross-bar of the full heddle, and in this.
erforated cross-bar the half-heddle slides up and down, first on one side of the
rossed warp thread, and then on the other. We attain these objects by con-
ucting the doup-heddle as illustrated in the accompanying drawings, forming a
Art of this Specification, in which:
Fig. 1 is a face and edge view of the full heddle, as it appears when cut from
the metal strip.
Fig. 2 is a face and edge view of the full heddle as it appears when stamped to.
shape, at the perforated cross-bar.
Fig. 3 is a face and edge view of the full and half heddle as it appears when.
finished, and ready for use to be strung in heddle frames.
Fig. 4 is a face and edge view of the half heddle.

page_text: Fig. 5 is a face and edge view, showing a section of the half heddle, and wire
connecting link.
Similar letters refer to similar parts throughout the several views.
A represents the full heddle, which may be cut from any kind of sheet metal;
but we prefer to make them from tempered sheet steel, and we prefer to cut them
in the form shown in Fig. 1, with the cross-bar G, in which cross-bar, is cut a
hole a.
The swell projection F is then cut with a suitable die, the heddle is then put in
a former and pressed to the shape shown in Figs. 2 and 3.
At the
B is the half heddle which has a head C, in which is an eye, see Fig. 4.
bottom of the half heddle B is a small hole, see Fig. 5. D is a wire link, and with
this link the half heddle is connected to the full heddle, by linking around the
right-hand side of the lower part of the full heddle, so that the half-heddle can
freely slide up and down in the hole a and in the lower slot of the full heddle.
Fig. 4 shows a modification in which the link D is dispensed with. The lower
end of this half heddle is made so as to form two cross bars at E, one of the cross-
bars is on one side of the full heddle, and one on the other side, as shown in Fig. 3.
These cross-bars keep the half heddle in place, but allow it to freely slide up and
down in the hole a, and in the lower slot of the full heddle.
To apply our improved doup-heddles to looms; they are strung in heddle frames,
such as used for stringing ordinary wire heddles.
When using our improved doup heddle for fine work, that is where many warp
threads are crossed in the inch of reed space, we use a heddle frame with two sets
of stringing bars, as is well understood by weavers.
The warp threads to be crossed, and the crossing warp threads, are drawn in the
heddles in the usual manner for. cross weaving, as is well known to weavers skilled
in the art of cross weaving.
The operations are as follows: When the full heddle A is raised, the pro-
jection F will cast the crossed warp thread to the right band, and allow the half
heddle, with the warp thread in the eye, to pass up on the left hand side, and,
when the half heddle is raised, it will, with the crossing warp thread, be drawn on
the right hand side of the crossed warp thread; that is the full heddle will draw
the crossing warp thread on the left, and the half heddle will place it on the right
hand side of the crossed warp thread, which operations are the same as those of the
ordinary worsted doup-heddles.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that
what we claim is :-
A doup-heddle for cross-weaving, consisting of a full heddle made of flat sheet
metal, and having a longitudinal slot, and a perforated cross-bar, in combination
with a half heddle adapted to pass through the perforated bar of said full heddle,
as shown, described and for the purpose specified.
Dated this 7th day of March 1892.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.