AN IMPROVED PROCESS FOR COLORING PAPER IN ENDLESS ROLI AND IN APPARATUS TO BE EMPLOYED THEREWITH
Year: 1884

page_text: I WILLIAM HENRY BECK of 115 Cannon Street in the City of London
Consulting Engineer and Patent Agent do hereby declare the nature of my
Invention for AN IMPROVED PROCESS FOR COLORING PAPER IN ENDLESS ROLI
AND IN APPARATUS TO BE EMPLOYED THEREWITH and in what manner the same
18 to be performed to be particularly described and ascertained in and by the
following statement
-
My invention relates to an improved process for coloring paper in endless rolls
and in apparatus to be employed therewith
According to the forme methods of coloring paper the coloring matter was
either added direct to the paper mass or applied to and rubbed into the same in
sheet or endless roll form
My improvements in the process of coloring paper in so called endless rolls
consists in coloring all kinds of paper by passing the same through a suitable
coloring bath in such manner that the said paper is equably saturated with coloring
matter and subsequently drying the sune
In this manner an intensive and equable coloring of the paper in all shades of
color is attained
The apparatus employed by inė in my paper coloring process the construction
of which is shown in the accompanying drawings consists of a number of rollers
having their bearings in an iron frame over which said rollers the paper to be
colored is fed and also guided through the coloring bath from whence after
removing the superfluous color the said paper is led to the drying apparatus in
combination with a color reservoir in which the said coloring is carried out and
consisting further of the constructive parts for securing the regular feed of fresh
color The following specification will show the combination of the various parts
of the machine and the mode of operation of the same
The roll of paper to be colored is placed on the roller A and the paper then led
over the tension roller Band under a roller C which rotates in the color reservoir D
After leaving the color reservoir the paper passes over the tension roller E which
ID 677

page_text: 18 covered with india rubber over the guide rollui F and between the pressure
rollers G and H In order to remove any superfluous color from the surface of the
paper before the said paper pisses to the known drying cylinders in the direction
towards I the following arrangement is employed whereby the paper is led between
the rollers G II and over a felt cloth or band which runs over the tension and guide
rollers K, L M N F G onto which said cloth or band the paper is pressed by
the pressure of the pressure roller II which has its bearings in P and thus all
superfluous color pressed out The color to expressed flows from the roller G into
a reservoir R where the same 18 collected for future use
As however the color so collected has in the most cases lost somewhat of the
intensive color of the original bath the same is not fed direct into the reservon D
but flows through a tube S arranged laterally to the reservoir R into a collecting
vat or butt where it is mixed with quantity of fiesh color and is led through a
connecting tube into the reservon D
The roller O which rotates in the reservoir D and the coloring matter contained
in the same is operated by means of the running or moving paper and is carried
in two lateral lover aims a which with the lever arms c oscillate around the
centres b
By means of this arrangement the roller C can be raised or lifted entirely out
of the coloring bath by pressing down the lever arms o and thus raising the arins a
and the roller O
In order to attain a correct operation of the apparatus and a constant height of
coloring matter in the reservoir D or a correspondingly regulated supply of fresh
color from the color vat or butt I employ a swimmer or swimmer valve consisting
of a disc d which swims on the surface of the fluid in the collecting at or butt T
and carries a stem e in the centre, which said btom reaches into the color supply
pipe communicating with the color vat or butt and 18 guided vertically in the
The stem e also
same by means of a cross formed frame y as shown in Figure 2
carries at its upper end a disc of india rubber of smaller diameter than that of
the tube This disc forms a closure for the tube f, by being pressed up against
the ring when the level of the fluid in the collecting vessel T is normal
If however the fluid sinks below the normal level the swimmer will also sink tho
disch will no longer close the opening in the ring so that a fresh supply of color
can flow to the reservoir until the normal level of the said fluid is roached and the
disc h again pressed up against the ring so as to cut off all further supply so long
as the fluid maintains its normal height.
Figure 1 shows the swimmer in a position corresponding to the normal height of
the coloring fluid whereas,
Figure 2 represents the same in a position so as to allow a fresh supply of
coloring fluid to flow to the reservoir
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declaro that what
I claim is
1-1he process of coloring paper by passing the said paper through a bath of
coloring fluid in such manner that the said paper is saturated or partially saturated
with the said coloring fluid substantially as described in the foregoing specification.
2-The combination of the rollers or cylinders A B C E in such manner that the
paper to bo colored 18 led or guided through a suitable coloring fluid contained in a
vessel arranged for such said purpose substantially as described in the foregoing
specification and shown in the accompanying diawings
3-1 be airangement application and employment of the rollers H and G in order
to express any superfluous coloring matter from the aforementioned papoi saturated
or paitially saturated with coloring fluid alone and in combination with the ielt
or other cloth or band X running over the said rollers in order to still better secure
the operation of depriving the ticated paper of any superfluous coloring fluid
substantially as described in the foregoing specification and shown in the
accompanying drawings

page_text: 4 The construction airingement and application of the parts and the general
system of my improved appuatus substantially as represented in Fig 1 of the
accompanying drawing consisting substantially of the reservoir receptacle or
vessel D cont uning the coloring fluid through which said reservoir or vessel D
the paper from the roll A which said paper runs over the roller B and beneath
the coloring roller C which has its bearings in the moveable lever arms a a passes
and is led further over the guide roller E and tension roller F, then through or
between the pressure rollers G H to the drying cylinders in combination with the
pressure device for expressing or removing any superfluous coloring matter and the
reservoir R for the said superfluous coloring Huid which said reservoir is arranged
beneath the said 1oller G substantially as described in the foregoing specification
and shown in the accompanying drawings
5 The apparatus or device for securing a constantly equable height or level of
the coloring fluid in the reservoir receptacle or vessel and the bath D consisting
of a swimmed the stem e of which reaches vertically upwards in the supply
pipe f for the coloring fluid and is provided at its upper end with a disc h of india
iubbor or other suitable material by means of which the supply or fued of coloring
fluid is cut off so long as the said fluid maintains its normal level or height in the
aforementioned reservoirs, receptacles or vessels substantially as described and
shown in the accompanying drawings
Dated then 10th of Cantanha 1001