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Патент USA US2133823

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Oct. 18, 1938.
Filed Aug. 14, 1956
s Sheets-Sheet 1
Oct. 18, 31938.
Filed Aug.‘ 14, 1936
5 Sheets-Sheet 2
Oct. 18, 1938. -
Filed Aug. 14, 1936
5 Sheets-Sheet 3
Cd. 18, 1938.
Filed Aug. 14, 1956
5 Sheets-Sheet 4
Oct. 18,1938.
2,133,823 ‘
Filed Aug. 14, 1956
5 Sheets-Sheet} 5
M 2?
Patented Oct. is, 1938
Thomas D. McClellan, Pascale, N. J.
Application August 14, 1936, Serial No. 95,984
2 Claims.
(01. ell-15)
This invention relates to dye tubs for use in
textile dyeing plants.
The objects of the invention are:-to provide
an improved container for the dye bath; to pro5 vide an improved means for supplying water to
volume of the dye liquid before the same comes
‘in contact with the material. ‘
In order to prevent a loss of heat and escape .
of vapor, a hood is provided over the entire tub,
having windows through which the progress of s
the bath; to provide means for controlling the
the dyeing operation can be observed. These
temperature throughout the bath; to provide
means for controlling the addition of dyestu?
and chemicals and for distributing the same
windows are mounted in doors having means for
elevatinB the Same t0 e-?el'd eeeeee t0 the tub
when desired.
10 throughout the bath; to provide for circulation of
the bath so as to obtain a uniformly dyed product and to prevent damage to the material in
the dyeing operation; to prevent loss of heat
and loss of vapor from the bath; to provide a
A further feature consists in the provision of 10
hydraulic'means to elevate the doors and means
to effect a tight seal with the doorswhen the
Same are closed. whereby the fume! and mm
are prevented from ewe-pins into the etmelphere
l5 tub which can efhciently accommodate batches
of the dye house.
‘ 16
of different sizes; to prevent loss due to tangling
A further feature 6011818“ in the. Provision 01'
of the material or unevenly dyed portions; to - a conveyor carrying samples of the material
reduce the quantity of dye bath required‘ for a which may be removed for inspection, thereby
given batch of material; and, in general, to im- avoiding the heeee?ty 101' cum!!! Demons ‘from
20 prove the e?lciency of operation of the dye tub.
the main m?tel'lel 01‘ Step9‘!!! the mevement 0f 20
One feature of the invention consists in the
provision of a tub which is so shaped as to re-
duce the quantity of liquid required for dyeing
the material. For this purpose, the bottom of
adjustable means for guiding materials of dif
‘fel‘ellt wel?hts 0M0 the reel-
25 the tub is caused to conform, in general, to the
space occupied by the material in its passage
through the dye bath. In one embodiment, the
tub is provided with a bottom which forms a
Verb!!! other features and advantages will he 25
apparent as the nature of the inventioh is more
fully diielOBed- vThe invention itself, however.
may be better understood by, referrins to the
chamber adapted to receive the material as it is
30 laid therein in folds or pleats and which slopes
upwardly along the general path taken by the
material as it is withdrawn from the tub so that
fellowini description. taken in connection with l
the eecempenyihB drawings. in Which One em- 30
bodiment thereof has been set forth for purposes
of illustration
the normally unused portions of the bath, with
In the drawings.
which the material'does not ‘come in contact, are
Figure 1 is 8 Side elevation of a dye tub con
35 eliminated.
A further feature consists in the provision of
structed in accordance with this invention;
' ' n 35
Figure 2 15 an end elevation thereof Shown!!
- means for continuously removing portions of the
the door in elevated position;
- dye bath and re-circulating the same. preferably
in the general direction of travel of the material.
Figure 3 13 a ‘section taken on 1ihe line 3-3 of
Figure 2’ showing the seal for the door;
40 Heating means is provided for the re-circulated
liquid whereby the liquid is heated after being
removed from the bath and before being reintroduced therein. In this manner, the tempera-
ture of the liquid in the various parts of the bath
4Of is maintained substantially constant.
In one embodiment’ the heat is Supplied by
steam coils over which the re-circulated liquid
passes and which supply heat to the 1mm d wmh
the material for thll purpose.
A further feature 0011818“ in the Provision of
Figure 4 1s a horizontal section taken along the 40
‘me ‘4 °f Figure 1;
Figure 5 is a vertical section taken along the '
line 5"‘! of Figure 4;
Figure 6 ‘s 9' “@Ittal swim taken e10“ the ‘5
“P8 H of Figure 5’ and
Figure 7 is a vertical transverse section taken
on the line 1-'I of Figure 6.
Although certain speci?c terms are used herein
50 out introducing steam directly into the bath or
convenience in referrmg
to various details of
the invention, it is to be understood that th
otherwise contaminating the same. Means 1S
also provided for introducing water, dyestuff and
chemicals to the re-circulated liquid before it is
reintroduced into the dye bath and at a rate such
55 that the added material is dispersed in a large
terms are to be given as brgad an jnterpretatleglel
as the state of the an; W111 permit,
Referring to the drawings more in detail and
more particularly to Figure 5, the invention is
shown as comprising, in general, a tub [0 having 55
a bottom ll forming a chamber i2 having a
curved section as shown in Figure 5 and adapted
to receive the material I! which is laid therein
in folds or pleats I‘, as by an oval reel i5, and
having an upwardly sloping section it, conform
ing generally to the path taken by the material
as it is withdrawn from the chamber i2 by a
second reel ll. The sloping section l6 termi
nates at a heating chamber I 8, containing a
steam coil. I 9, into which the bath discharges,
in its passage through the tub. The bath, after
being heated by the coil i9, passes through a pipe
20 and is thence re-circulated, in the manner to
be later described, through a flow box 2| which
15 is disposed above the bath at a point beneath
the reel ll, so that the liquid is caused. to flow in
the direction of travel of the material from the
?ow box 2|, through the bath, to the heating
chamber it. A hood 22 encloses the entire‘ bath
20 and the reels so as to conserve heat and to pre
vent escape of liquid or vapors. This hood is
provided with windows 23 for the purpose set
The details of construction will be better un
derstood by referring to Figures 1 and 2. In
these ?gures, the tub Iii and'hood 22 are shown
as supported by a framework comprising a plu
box and should be such as to provide a uniform
discharge across the entire bath.
Water is supplied when required to the bath by
a suitable pipe 43 (Figures 5 and 6) which may
terminate above the heating chamber l8. Water
may also be introduced into the bottom of the tub
. by pipes 44 which also serve as a drain when the
tub is to be emptied. The pipes 44 are provided
with valves 45 and communicate with a water
supply pipe ‘6 controlled by ‘a valve 41 and with 10'
a drain pipe 48 having a valve 49. By suitable
actuation of the various valves, wash water can
._be admitted to the tub through the pipes 44 or
the contents of the tub can _be drained through
the drain pipe 48.
The dyestuil's and chemicals are supplied from
a receiver 50, located at the side of the tub, and
having a screen Ii. A plurality of pipes 52 and
I! (Figure 1) of diil'erent capacities and having
valves 54 and 55, respectively, are connected to
feed the solution from the receiver 50 to the re
circulation pipe 20. The valve 54 may be used
for controlling the admission of dye liquid from
this receiver, and the valve Si may be used to in
troduce other chemicals which may be supplied
to the pipe 20 at a more rapid rate. Other pipes
of different sizes may be used or other means,
such as differently sised ori?ces, may be used'to
rality of uprights 25 by which the assembly
is supported and joined by horizontal members' control the flow of liquid as desired, so that the
26, which support. the tub i0, and by horizontal rate of addition becomes a constant and is not
members 2'! and 28 which strengthen the as
dependent upon a variable valve adjustment.
sembly and provide supports for- the hood 22. Obviously, water may also be introduced from
The tub III is provided with a bottom ||, above
_described, and with side members 30 which are
the receiver 80, if desired.
The pipes l2 and It may be connected to a
‘supported by the horizontal members 26. The
pipe 2| leading from the heating chamber l8
discharge line It, having a draw-oil.’ valve II
communicates with a pump section 32 (Figure 1)
bath to be used for. mixing chemicals, and dyes
having an impeller (not shown) therein, driven
by a motor 32 which may be mounted above the
level .of the bath on the outside of the tub (Fig
ures 1', 3 and 4) andis connected to the impeller
by a coupling mechanism 34. The ‘impeller is
adapted to lift the liquid from the pipe 20 through
a riser 35 ‘and to discharge the same through‘
a pipe 36 (Figure 4) into the ?ow box 2| ‘(Fig
ures 5, 6 and 7). .The impeller is preferably
designed to lift the liquid without agita
tion and without introducing air therein so as
to prevent deterioration of the bath. A standard
type of impeller, capableof lifting the liquid with
out applying centrifugal force may be used. . _
which provides means to draw water from the
so that the total quantity of bath may be kept
constant. A discharge pipe II, having a control
valve ll, may be connected to the riser 3! to
introduce re-circulated liquid-into the receiver
50 for use in ?ushing out the receiver, for as
sisting in distributing the added dyestu?.’ through
out the bath, or to provide liquid for mixing the
dyestufl' or chemicals. This pipe 58 terminates
short of the screen 5| so as to permit removal of
said screen.
A discharge pipe ‘I, having a control valve 6|,
may be connected to the pipe 28 to provide means
for carrying away the wash water when washing
upwardly from the pipes 44. Scum may be re
moved .from the heating chamber I! by an over
?ow launder 62 (Figure 5) connected by a pipe 08
to the discharge pipe ‘I.
The reels ii and I1 are supported by suitable
The flow box 2| (Figure 5) is in the'form of an
open-top box extending across the bath and is
provided with a front plate 40, the bottom of
which is shaped to form “a slot Ii, extending
across the tub, through which the liquid dis
charges to a lip 42 formed on the flow box 2| bearings (not shown) from the horizontal mem
and terminating at the level of the bath. The bers 21 of the framework. vThe reel I5 is pref
lip 42 is rounded upwardly to prevent injury to . erably oval so as to lay the material in the tub
in folds or pleats in the usual manner. The reel
any material that may come in contact there
I1 is preferably circular for withdrawing the
with. The slot ll is shaped in accordance with
the pressure distribution across the ?ow box 2i material from the tub at uniform rate. The
so that a uniform distribution of liquid across speed of operation of the reels may be varied as
the bath is obtained- It will be noted that the required. The peripheryv of the reels may be pro
vided with spaced rods 64 of molded phenol con
head of liquid in the ?ow box, caused by dis
charge from the pipe 36, is greatest at a point densation product, such as Micarta, and a cover
some distance from the end of the discharge pipe ing 65 of similar material in the form of a ?at
and decreases in both directions from that point.' sheet may be‘applied over the rods 04 or attached
The slot 4| accordingly is made narrowest at directly to the reel supports. I have found that
this material has the property of gripping the
the point of greatest head or pressure and in
70 creases in width in inverse ratio to the change material for pulling the same without injury.
in pressure, being widest at the two ends of the The material mayadhere somewhat to the Hi
flow box where the pressure is lowest. The carta surface, in which case the folds are laid
shape of the slot ‘I may be computed mathe
somewhat longer than the normal throw of the
matically or may be determined by measuring reel.
75 the head of liquid at the various points in the ?ow
Suitable guide plates I6 and '1 are slidably 76
mounted on channels 68 carried by the frame for
guiding the material from the bath onto the
reels. The plate 66 is positioned to guide mate
rial onto the reel I‘! when this reel is being used
to withdraw material from the bath. This plate
the dyeing operation proceeds, the temperature
may be carefully regulated by ‘suitable adjust—
has three sets of holes 69 which are of different
sizes and are differently spaced for guiding ma
terials of different weights. The proper set of
ment of the rate of ?ow of the liquid through'the
re-circulation pipe 28 and of the heat supply to
the steam coil IS. The temperature and rate of
circulation can be independently controlled by
varying the above-mentioned adjustments. At
holes may be brought into position for guiding
the same time, the dye can be built up as required
10 the material by sliding the plate 86 in the chan
nel 68.
The plates 61 are provided for guiding the
material onto the reel l5 when the material is
withdrawn from the bath directly onto this reel.
15 These plates are also slidable and are- provided
with rows of holes 18 which are similar to the
holes 89 in the plate 66. Two separate plates
81 are used because the space is not su?icient to
permit sliding adjustment of one large plate.
to the reel I'l in'the manner above described; As
The hood 22 comprises sides ‘II, ends 12 and a
top 13, all of which are suitably supported by the
framework. The windows 23 are mounted in
doors 14 which slide in channels 15 located at the
, ends 12 of the tub andare operated by suitable
25 hydraulic lifts, such as cylinders 18, mounted
above the doors ‘[4, and having pistons (not
shown) connected to rods ‘H which are attached
at the lower part of the doors ‘I4. Fluid issup
plied to the cylinders 16 by a pipe 18 controlled
30 by a two-way valve 19 connecting the pipe 18 to
a supply pipe 80 or a discharge pipe 8|,
The doors are sealed hydraulically by a hose
82 held in a channel 83 which surrounds the door
opening and bears against the door around its
35 entire periphery when distended by ?uid pres
sure, making possible the treatment of material
7 at temperatures above the boiling point and the
retention‘of valuable vapors in certain processes.
The hose 82 is connected to a suitable source of
?uid pressure (not shown), such as a water main
or a compressed air line. When the seal is to be
effected, the fluid is supplied to the hose 82 until
it is expanded or distended to make a tight con
tact around the entire door. When the pressure
within the hose 82 is released, the door can be
moved freely. Obviously, other types of seal may
be used, particularly if a tight seal is not essen
A take-off reel 84 of any desired type, such as
50 a vacuum reel, may be positioned at one end of
the tub and supported by an arm 85 attached to
one of the uprights 25. This reel may be used
for removing the batch of material from the tub
and at the same time extracting excess water
55 therefrom. One or more longitudinal partitions
(not shown) may be provided in the tub so as to
divide the same into two or more compartments,
which may be used separately or together de-'
pending upon the size of the batch being treated.
60 Side bars 86 (Figure 6) are provided to keep the
material out of contact with the sides of the tub.
A conveyor belt or chain 81, carrying samples
of the material, is mounted above the heating
chamber I8 and is driven by a belt 88 from the
reel II. This belt 81 dips in the bath and re
, ceives treatment similar to that .of the material
on the reels [5 and H. The door 14 is provided
with a port 89 through which‘ the belt 81 may be
viewed and which may be opened to‘ permit re
moval of samples for observation or test.
In the operation of this device, the dye solu
tion is prepared at the proper concentration and
temperature according to the requirements and
is circulated through the bath while the material
is being passed therethrough from the reel l5
by mixing the dye solution in the receiver 58 and 10
introducing the same into the pipe 20 by suitable
actuation of the valves 54 and 55. In this way,
the dye is thoroughly dispersed in a large volume
of solution before it is introduced into the tub,
so that the dye cannot contact the material in a 15
concentrated form. The rate of addition of the
dye can be adjusted with respect to the rate of
circulation of the liquid and the number of rev
olutions of the reel so that a suitable distribution
is obtained. Furthermore, the flow box 2| holds 20
a substantial quantity of liquid and provides a
further opportunity for the dye to be thoroughly
dispersed in the liquid before it is s‘uppTied to
the bath.
The ?ow of liquid through the tub assists in 25
the removal of impurities, such as lint, lime soaps,
etc. into the heating chamber, where they are
removed by the launder.
Since the tub is shaped to conform to the path
of the material, the amount of excess dye bath 30
is reduced to a minimum. The cost for dyestuffs
and chemicals and the cost of heating the same
are correspondingly reduced. Furthermore, the
maintenance of a uniform temperature through
out the bath eliminates local variations in tem
perature which occur when the bath is heated
without forced circulation. This permits an ac-_
curate control of the dyeing conditions and re
duces the possibility of injuring the material or
dyestuffs by improper temperatures.
By suitable adjustment of the operating char
acteristics, the dye may be added at a rate de
termined by the speed of travel of the material
through the tub. In this way, an accurate con
trol of the color and condition of the material
may be obtained.
The washing of the material is facilitated be
cause the water may be introduced by the pipes
44 and caused to ?ow with the'material, thence
into the heating chamber l8, whence it is re
moved through the pipe 60 or it may be intro-I ‘
duced into the tub by the pipe 43 and caused to
?ow in a reverse direction and out through the
pipes 44 and 48 for ?ushing out the .tub and
washing the material. By providing the various
controls, including the receiver 50, on the out
side of the machine, the dyestu?'s or chemicals
may be mixed and introduced when the tub is
operating without opening the hood or otherwise
interfering with the continuous operation of the
dyeing process.
During the run, samples may be taken from
the belt 8'! without stopping the machine. When
it is desired to raise the doors 14, the hose 82 is
first collapsed by releasing the ?uid therein and
the valve 19 is actuated to supply ?uid pressure
to the-cylinders 16. The bath is then accessible
for adjustment or for inserting or removing the
material. When the doors are closed and sealed,
escape of vapor or fumes is prevented and the 70
atmosphere of the dye house is kept free from
I have found that some dyeing operations are
a-function of the speed of the material. By clos
ing the doors ‘I4, I am able to run the material
at a high speed, it necessary, without throwing
_ liquid from the tub.
This is of particular im
portance with some kinds of materialr
By washing the material in the normal direc
tion of ?ow, the impurities are removed to the
launder and are prevented from contaminating
the material and necessitating subsequent clean
ing. The scum is removed continuously by the
launder 62 and pipe 83. A screen may be mount
ed above the heating coil IO, ii desired, to prevent
‘ impurities from being re-circulated.
It is ‘to be understood that the heating cham
ber may be at a higher level than the flow box
to obtain gravity ?ow oi liquid, in which case
. a pump may be used to raise the liquid from the
bath to the heating chamber. In some instances,
I claim:
1. In a tub containing a dye bath, means to
introduce material in a _folded or pleated pile,
means to withdraw the material from the bottom
of said pile in an upwardly inclined path, said
tub having a bottom forming a chamber to re
ceive the pile of material and extending there
from in an upwardly inclined direction conform
ing generally to the path of withdrawal 0! the
material, means to withdraw portions of the 10
bath from said tub, means to heat the portion
thus withdrawn, a ?ow box, and means to intro
duce. the withdrawn portion oi.’ the bath'into said
?ow box, said ?ow box having a slot through
which the dye liquid ?ows into said tub, said slot
varying in size across the tub in accordance with
the direction of ?ow of dye liquid may be re- ' the pressure distribution in said flow box so as
versed in the bath.
It is to be understood that various combinations
; of adjustments may be made according to the
maintain a uniiorm rate of discharge across the
entire vtub.
While a specific embodiment oi the invention
has been disclosed for purposes 01' illustration, it
is obvious that the invention is not to be limited
thereto but that various changes and modi?ca
2.>In a dye tub, means to continuously intro 20
duce a‘ dye liquid comprising a ?ow box extending
across the tub, a pipe to introduce the dye liquid
into said ?ow box and a slot in said ?ow box
through which the dye liquid ?ows into said tub,
said slot varying in size across the tub in ac
cordance with the pressure distribution in said
tions may be made therein as will appear to a
ilow box so as to maintain a uniform rate of dis
particular material being treated and to the dye
solution used so as to obtain any desired result.
person skilled in the art. The scope of the in
vention is only to be limited in accordance with
3%) the following claims when interpreted in view of
the prior art.
charge across the entire tub.
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