An Improved kind of "Spot" for Tulle, Net, or like Fabrics, and Method of Forming same during the Weaving of the Fabric on Looms.
Year: 1895

page_text: Date of Application, 2nd Dec., 1895-Accepted, 4th Jan., 1896
COMPLETE SPECIFICATION.
An Improved kind of "Spot" for Tulle, Net, or like Fabrics, and
Method of Forming same during the Weaving of the Fabric on
Looms.
I, AUGUSTE PAUL LOUIS ISAAC a member of the Firm of Doguin & Co.
of 1 Rue de la République, Lyons in the Republic of France, Manufacturer,
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:-
The novel effect which I have succeeded in producing on a Levers loom for
ornamenting any suitable fabric such as tulle, net or the like at the same time as
the fabric is woven, consists in producing "spots" formed of two or more concentric
rings. Each of these rings is composed of a certain number of the threads them-
selves which serve for weaving the foundation, such threads being coiled several
times on themselves in the form of a curl or loop.
In the accompanying drawings, the diagrammatic Figures 1 and 2 show clearly
one of the effects which may be obtained.
The weaving is performed on a loom mounted with a double warp, that is
to say it has two warp threads for one bobbin thread. Figure 1 represents the
work executed by the threads at the moment of weaving the "spot." The
bobbin threads are shown in black, those of the rear warp in dotted lines,
thus (...
). The front warp threads are figured for the sake of
greater clearness partly in broken lines, thus (-
-), and partly in
broken lines and dots, thus (-..
-..). I have only shown the making
of two rings, the larger one being made on six bobbins, the smaller one on four. The
process would be the same for any suitable arrangement of rings of greater number
or dimensions.
Without entering into needless explanations as to the passing of the threads
which are clear to a practical man in the trade, it is sufficient to say that I
commence by weaving the greater of the two rings by making the six threads of
the front warp coil a great number of times round the six threads of the bobbin
simultaneously, by series of three each, in one direction. During this time; the
rear warp threads remain inactive and the winding up of the fabric is stopped.
The result is that the rollers of the six front warp threads which are working,
being left as free as possible, these threads form by their juxtaposition a ring, one
part of which is taken between the bobbin threads and the rear warp threads, and
the other part floats loosely separating itself from the fabric by reason of the
stiffness of the textile material. For the moment this ring stands erect in a plane
almost perpendicular to that of the fabric.
When once the first ring of the "spot" is woven, the front and rear warp
threads are twisted for some movements on their bobbins, continuing thus to form
the fabric, then the weaving of the second ring commences. It is executed by the
same process, but being necessarily smaller it is only made on four bobbins with
four warp threads. When this second ring is woven, the weaving of the foundation
or the net is resumed. I have therefore two rings, a large and a small one, erect
ide by side on my fabric. If in finishing (sizing) the fabric 1 take care to pass
he brush commencing always from the side of the larger of the rings, these latter
will be flattened and will adhere to the foundation. The larger ring will then
urround the smaller ring or rings, and I shall have obtained the effect which is
hown in Figure 2.

page_text: my
Having now particularly described and ascertained the nature of said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
"
1. In the production of "spotted" tulle, net and like fabrics, the improved
method of weaving with the threads employed for forming the foundation, "spots"
of two or more riugs, which, when the fabric is finished or sized, become approxi-
mately concentric, substantially as hereinbefore described.
"
2. As a new article of manufacture, tulle, net or like fabrics having "spots'
formed of two or more rings obtained by weaving on tulle looms during the
manufacture of the fabric itself, substantially as hereinbefore set forth.
Dated this 30th day of November 1895.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.