Improved Means for Damping, Dyeing, Starching, or Chemically Treating and Drying Paper, Silk, Felts, or other like Fabrics.
Year: 1891

page_text: Date of Application, 20th May, 1891
Complete Specification Left, 24th Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improved Means for Damping, Dyeing, Starching, or Chemically
Treating and Drying Paper, Silk, Felts, or other like Fabrics.
We CHARLES STEPHENS, of No. 53 Milbrook Road, Brixton, in the County of
Surrey, Engineer and WILLIAM HENRY ELLIOTT of 41 Oxford Road, Finsbury
Park, in the County of Middlesex, Commercial Traveller do hereby declare the
nature of this invention to be as follows:-
Our invention relates to improved means for damping, drying, or indurating
paper, felts, silk, or other fabric, and may be applied to an existing hot roll,
or an especial machine may be constructed according to our said invention for
that purpose.
In carrying our invention into effect we fix, above a steam or air heated metal
roll, preferably covered or electroplated by a coating of some metal not readily
acted upon by oxygen or acids, a tank in which the main supply of water, chemical
or dye is held. A second tank is placed below this, and a regular liquid level is
maintained by means of a ball cock or other automatic closing or feeding device,
from the first tank. Said second tank forms a bath, into which a roll is immersed,
having an adjustable bearing or bearings, vertically and horizontally moved at will.
Said roll is in contact with a second roll, the axis of which is placed in the same
horizontal plane, and said second roll is in rolling contact with a third roll, placed
in or approximately in the same vertical plane as said second roll, and is caused to
press upon the central heated roll above described. Upon one side of the above
described system of rolls we place a guide roll, with adjustable bearings, round
which passes an endless felt or equivalent band--which is carried round the central
heated roll in such a manner as to preserve a perfect contact with at least two
thirds of the circumference thereof, certain other rolls being placed radially around
said central heated roll for the purpose of preserving said contact, and each of said-
rolls is provided with an adjusting device for regulating the pressure upon the
surface of felt surrounding said central roll, and a separate roll is placed below,
or in some convenient spot for the purpose of regulating the tension of said endless
band.
In applying the device as hereinbefore described, we place a roll of paper or
fabric upon the feed side of the heated roll, so that said paper or fabric is
continuously drawn downwards and around said heated roll by the felt or other
endless band, and the surface thereof is kept smooth and even by the regular radial
pressures of the adjustable rollers surrounding said central roll. The liquid in the
lower tank or bath is fed from the first roll which is immersed therein, to the
second, and from thence to the third, which touches the paper or fabric in its
passage over the roll, and communicates the color, chemical or other induration
thereto, the superfluous moisture being rapidly evaporated by contact with the
central heated. roll.. The receiving roll for the paper or fabric may be driven
by a frictional or other device, and the several rolls may be operated by suitable
gearing.
We do not confine ourselves to any special arrangement of the several parts
herein specified, nor...to any special conformation or configuration of the

page_text: machine, and may, in carrying out our invention apply these several parts to an
existing heated roll or drying cylinder, and in other cases may construct a new
machine upon the basis herein set forth.
Dated this 20th day of May 1891.
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C., Agent for the Applicants.
J
COMPLETE SPECIFICATION.
Improved Means for Damping, Dyeing, Starching, or Chemically
Treating and Drying Paper, Silk, Felts, or other like Fabrics.
We, CHARLES STEPHENS, of No. 53, Milbrook Road. Brixton, in the County
of Surrey, Engineer and WILLIAM HENRY ELLIOTT of 41 Oxford Road,
Finsbury Park in the County of Middlesex Commercial Traveller 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:-
Our invention relates to improved means for damping, drying or indurating
paper. felts, silk or other fabric, and may be applied to an existing hot roll, or a
specially designed machine may be constructed according to our invention for that
purpose.
1
In order that our invention may be the better understood, we have appended the
accompanying sheet of drawings, which represents an end elevation of a machine,
and to which reference may be had in the following description.
In carrying our invention into effect, we employ a steam or air heated roll A
mounted in suitable bearings B upon the transverse bar D of the frame C. Said
roll is preferably covered by a coating of any metal which is not readily acted
upon by oxygen or acid solutions, either mechanically attached to the roll, or by
electro-deposition. A tank E is fixed above the roll A for the purpose of holding
the supply of water, chemical solution, or dye necessary for the process. A second
tank is placed below E, and arranged so that a constant liquid level is
maintained by means of a ball cock or other automatic valve communicating with
the upper cistern E from whence the supply is derived. The lower tank F forms
a bath, in which a roll a is partly immersed, and supported in bearings provided
with horizontal screw adjustment, as shewn. Said roll a is in contact with a
similar roll the axis of which is in the same horizontal plane, and is above, and
in contact with, another roll c the axis of which is in the same vertical plane as that
of b, both being supported by adjustable bearings so that c may press upon the
heated roll A, and upon c with a given pressure, according to the work that is to
be done. Upon one side of the rolls and c we place a guide roll d with adjustable
bearings, round which passes an endless felt or like band k, of a width equal or
nearly equal to that of the rolls over which it passes. Said band & is carried over
guide rollers e, f, g, hi and j arranged radially round the frame C, in adjustable
bearings. Said band turns inwards over and passes round the roll A up to d,
tightly embracing it, a stretching roll G with a screw and lock nut adjuster being
provided to maintain said band in proper tension. The screw spindles of the
guide roll bearings are provided with spiral springs for the purpose of producing
a uniform pressure of the band & upon the roll A, and preventing creasing.
Motion is imparted' to the central heated roll A by hand or other power by means
of suitable gearing, and the rolls ab and c may either be driven by contact, or
gearing, belts or the like may be interposed for that purpose. For treating a
continuous length of paper or fabric, we employ a receiving roll or drum 'H, which
is preferably driven by a frictional or other similar gearing whereby sufficient slip
or loss of speed may be obtained to compensate the increase of diameter" as the
materiál is wound upon it.
In using the machine we place the paper or fabric which is to be treated, upon

page_text: the upper surface of the roll A at J which draws it inwards between it and c and
thence between the band and the heated roll A. The liquid in the tank or bath F
is fed as a liquid film from the circumference of the immersed roll a to b which is
in contact with it, and is then transferred to the paper or fabric as it passes down-
wards between the band and the roll A. The dye or color, chemical or other
induration is thus communicated to the material to be treated, the superfluous
moisture being rapidly evaporated by contact with the heated roll A, a uniform
and regular pressure being maintained by the action of the radially arranged guide
rolls upon the band k. If the paper or fabric be in a continuous piece of great
length, it may be unrolled from a drum 1 by tension as it passes between the rolls
and band, and wound upon the drum H hereinbefore referred to, but in the case of
treating sheets or short lengths, we provide feed and delivery boards arranged to
nearly touch the feed and delivery surfaces respectively.
The process comprising dyeing indurating and drying is thus performed within
the compass of a single machine, and is continuous, the paper or fabric being
perfectly saturated at the commencement, and delivered in a dry state fit for use.
We may add a fan or other apparatus for inducing a current of air to assist in
dissipating the vapor arising from the surface of the band k, or may enclose
the lower part of the frame so as to form a drying chamber through which the
band passes.
We do not confine ourselves to any special arrangement of the several parts herein
specified, nor to any particular conformation or configuration of the machine, and
may, in carrying out our invention apply these several parts to an existing heated
roll or drying cylinder, and in other cases may construct a new machine upon the
basis herein described.
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
First. In an apparatus for chemically treating, dyeing and drying paper or
fabrics, the employment of a bath F, rolls a be, and endless band k, in combination
with a heated roll A, substantially as herein described with reference to the
appended drawing.
Second. In an apparatus as referred to in the preceding claim, the employment
and arrangement of guide rolls and adjustable bearings in combination with an
endless band and heated roll substantially as and for the purposes herein described,
with reference to the drawing.
Dated this 19th day of October 1891.
FREDK. WALKER,
11, Furnival Street, London, E.C., Agent for the Applicants.