Improvements in Dyeing Textile Materials and Apparatus for that purpose,
Year: 1898

page_text: Date of Application, 7th July, 1898
Complete Specification Left, 6th Apr., 1899-Accepted, 27th May, 1899
PROVISIONAL SPECIFICATION.
Improvements in Dyeing Textile Materials and Apparatus for that
purpose,
I, LOUIS JEAN PIERRE DUMONS, of Roubaix, Nord France, Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention relates to a method and apparatus for dyeing textile materials,
in fibre, bobbins of sliver or in thread or yarn in such a manner as to produce
uniformity of tint throughout.
For this purpose the liquid dye is forced by air or steam pressure alternately
in opposite directions through the material. At first the liquid is cold, then it
is gradually heated while it passes to and fro until the fibres have the colour fixed
on them.
The apparatus for this purpose comprises two strong vessels or receptacles
for containing the liquid dye, each provided with a heating coil or jacket and
with a float the rod of which passes through a stuffing box and has external
tappets which, as the float ascends and descends act on a valve whereby the
interior of the vessel is put in communication with the air or with a supply of
air or steam under pressure. The receptacles are connected by pipes the one
with the bottoms, the other with the tops of a number of dyeing vessels, each
containing the textile material held between perforated horizontal partitions and
each provided with an adjustable valve both at the top. and at the bottom.
Owing to the pressure in one of the receptacles the dye liquid is forced through
the material in the dye vessels in the one direction, say from below upwards and
thence into the other receptacle. As the float in the one receptacle thus
approaches the bottom while that in the other approaches the top the valves are
reversed, so that the former is put in communication with the atmosphere, while
the latter is subjected to pressure. The dye liquid is then forced in the opposite
direction, say from top to bottom, through the textile material, and these alter-
nations are repeated until the dyeing is completed.
T
1000
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Dyeing Textile Materials and Apparatus for that
purpose.
I, LOUIS JEAN. PIERRE DUMONs, of Roubaix, Nord France, Engineer, do
hereby declare the nature of this invention and in what manner the same is to
Price 8d 1

page_text: De performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to a method and apparatus for dyeing textile materials,
in fibre, bobbins of sliver or in thread or yarn in such a manner as to produce
uniformity of tint throughout.
For this purpose the liquid dye is forced by air or steam pressure alternately
in opposite directions through the material. At first the liquid is cold, then it
is gradually heated while it passes to and fro until the fibres have the colour fixed
on them.
The apparatus for this purpose comprises two strong vessels or receptacles
for containing the liquid dye, each provided with a heating coil or jacket and
with a float the rod of which passes through a stuffing box and has external
tappets which, as the float ascends and descends act on a valve whereby the
interior of the vessel is put in communication with the air or with a supply of
air or steam under pressure. The receptacles are connected by pipes the one
with the bottoms, the other with the tops of a number of dyeing vessels, each
containing the textile material held between perforated horizontal partitions and
each provided with an adjustable valve both at the top and at the bottom.
Owing to the pressure in one of the receptacles the dye liquid is forced through.
the material in the dye vessels in the one direction, say from below upwards and
thence into the other receptacle. As the float in the one receptacle thus
approaches the bottom while that in the other approaches the top the valves are
reversed, so that the former is put in communication with the atmosphere, while
the latter is subjected to pressure. The dye liquid is then forced in the opposite
direction, say from top to bottom, through the textile material; and these alter-
nations are repeated until the dyeing is completed.
Fig. 1 of the accompanying drawings is a vertical section and Fig. 2 is a plan
of dyeing apparatus according to this invention Fig. 3 is a transverse section to
an enlarged scale.
a and
are the two receptacles for the dye liquid which is forced alternately
from the one to the other through the vessels c in which the materials to be
dved are packed between two perforated plates. d and are pipes for the dye
liquid communicating with the tops and bottoms respectively of the vessels c.
These pipes are furnished with valves f by which any of the vessels can be cut
off, for emptying or charging when required.
in
The upper parts of the receptacles a b communicate by a four
a reservoir of compressed air by the pipe or with the atmosphere by pipe i
with
way cock
which has a regulating valve for throttling more or less the passage of air and
so controlling the speed of the liquid through the dyeing vessels. On the axis
of the cock is fixed a barrel k, having two cam prominences In in one plane
and two others m o in another plane. On an axis are fixed four arms q
the plane ofn, n in the plane of mo, and s and t in the plane of two
tappets u which terminate the rods of floats u and vin chambers w and communi-
cating at their tops and bottoms with the receptacles a and b respectively. On
the barrel party is coiled a rope carrying a weight which tends to turn the
cock in the direction of the arrow. When the parts are as shewn in Fig. 3,
the receptacle a is full and the float u holds the arm 7 up against the prominence
preventing the cock from turning, but as the receptacle 6 is then open to the
air while a is in communication with the compressed air reservoir, the liquid is
forced from a down through the vessels c into b. The float a descends but the
cock is still held by q until the float rises and its tappet acts on the arm t
causing to release / whereupon the weight causes the cock to turn one
quarter round until the prominence m is stopped by the hook of r.
The recep-
tacle a is thus put in communication with the atmosphere and 6 with the com-
pressed air reservoir, and the liquid is then caused to pass upwards through the

page_text: vessels c. The speed of the liquid depends upon the valve which when entirely
closed stops the flow of liquid.
Instead of compresed air, steam or inert gas such as nitrogen or carbondioxide
might be employed, and instead of dyeing, other operations effected by passage
of liquid, such as washing or bleaching might be performed by the apparatus."
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A dyeing process wherein the liquid is caused to pass alternately in opposite
directions through textile material by the pressure of an elastic fluid, with a
speed and pressure that can be varied as desired during action substantially as
described.
2. For effecting the process above referred to, apparatus comprising two
receptacles from the one of which the dye liquid passes in the one direction
through textile materials to the other, and from the latter it passes in the opposite
direction through the textile materials to the former, and so on alternately, the
liquid being maintained under pressure by an adjustable escape valve, sub-
stantially as described.
3. The combination of the two receptacles with four way cock, its barrel with
cam prominences, the rocking arms floats and weight, for alternating the flow
of the liquid, substantially as described with reference to the drawings.
Dated this 6th day of April 1899
ABEL & IMRAY,
Agents for the Applicant.