Improvements in Looms for Weaving Certain Textile Fabrics.
Year: 1892

page_text: Date of Application, 14th Mar., 1892
A
Complete Specification Left. 16th Jan.. 1893-Accepted. 14th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving Certain Textile Fabrics.
We, JOSEPH NICHOLAS D'ANDRIA, Merchant, and EDMUND SLICER, Manu-
facturer, both of 40, Chapel Street, Bradford in the County of York, do hereby
declare the nature of this invention to be as follows:-
;-
This invention relates to improvements in looms for weaving that class of textile
fabrics in which the nature of the design requires or permits two weft threads to be
introduced at each opening of the shed.
The said improvements consist in employing a shuttle having two shuttle pegs or
their equivalent adapted to hold two weft bobbins or cops and pass two weft threads
between the warp at each pick instead of one. We preferably form the shuttle
with two weft eyes at opposite sides of the shuttle and one higher than the other.
We also employ two weft forks in connection with the ordinary weft stop motion
and we may modify the form of the swell in the shuttle box so as not to interfere
with the additional weft thread.
Dated this 12th day of March 1892.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in Looms for Weaving Certain Textile Fabrics.
We, JOSEPH NICHOLAS D'ANDRIA, Merchant, and EDMUND SLICER, Manu-
facturer, both of 40, Chapel Street, Bradford, in the County of York, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to improvements in looms for weaving that class of textile
fabrics in which the nature of the design requires or permits two weft threads to be
introduced at each opening of the shed.
Since filing our Provisional Specification it has come to our knowledge that a shuttle
carrying two weft threads is not new and we therefore make no claim to such a
shuttle or to the method of introducing the two weft threads by means of such a
shuttle.
We employ a shuttle having two shuttle pegs or their equivalent adapted to hold
two weft bobbins or cops and pass two weft threads between the warp at one pick
instead of two. We preferably form the shuttle with two weft eyes at opposite
sides of the shuttle and one higher than the other. We also employ two weft forks
in connection with the ordinary weft stop motion.
In the accompanying sheet of drawings forming a part of this Specification
Figure 1, is a plan view of the shuttle,
Figure 2, is a cross section of the same on the broken line
Figure 3, is a similar section on the broken line y, 2.
a,
6 Figure 1, and
Figure 4, is a cross section of the "going part" or the slay board of a loom
through the grate of the weft stop motion illustrating the application of our double
weft stop motion.
Figure 5, is a longitudinal section of the said "going part" looking from the back
of the loom and
Figure 6, is a plan view of the same.

page_text: Figure 7, is a separate view on a larger scale, looking from the front of the loom,
of the two weft forks we use, and
Figure 8, is a side view of the same.
The shuttle A has two shuttle tongues or pegs B, B for holding the bobbins or
their equivalent of weft and it is also provided with two weft eyes C and C₁ for
guiding the weft from the two bobbins D, D mounted on B, B. The eyes C¹and C
are respectively made in the top and bottom of the shuttle as shown in section
Figure 2 so as to leave as wide a vertical space as possible between the two threads
leaving the shuttle as represented by the broken lines F and F Figure 5.
groove E is formed along the underside of the shuttle in which the weft leaving the
eye C lies and is thus kept from being damaged by the shuttle resting directly upon
it as it is traversed to and fro in the ordinary manner.
A
The weft stop motion we employ is similar in principle to what is known as the "weft
fork "stop motion but we employ two weft forks G and G'arranged one above the other
and a wider grate or grid H than that commonly used. The said weft forks are
both pivoted to the usual arm or weft fork attachment J shown broken off in the
drawings but which in practice is connected in exactly the ordinary manner to the
lever provided to release the starting lever and the brake lever when it is required
to stop the loom. And a double head K and K is formed on the "hammer" ΟΙ
vibrating lever L also shown broken off but it is of the ordinary construction.
In Figure 5, the two weft forks and the two weft threads are clearly shown in
their relative working position when the shuttle A. has entered the shuttle box N
and the shed is closed immediately previous to beating up the weft. It will be
seen that owing to the two threads respectively leaving the shuttle from the top and
bottom they lie across their respective forks without interfering with each other or
the independent action of the forks. The going part is cut away at P to leave
the weft fork G free.
The fork G is preferably mounted on the adjustable piece j connected by the
screw to J.
Instead of the shuttle shown in the drawings we prefer to use the improved
shuttle for which we have made application for Letters Patent No. 12,355 of
1892.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. In a loom for weaving fabrics with a shuttle carrying two weft threads, two
weft forks arranged one above the other, substantially as herein shown and
described.
2. In a weaving loom, the combination with two weft forks arranged one above
the other, of a shuttle adapted to carry two distinct weft threads in which the eyes
for guiding the two threads from the shuttle are respectively formed in the top and
bottom of the shuttle, substantially as herein shown and described.
Dated this 13th day of January 1593.
DRACUP & NOWELL,
Bradford, Agents.