Improvements in the Process of and Apparatus for Sizing Paper.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Process of and Apparatus for Sizing Paper.
We, FREDERICK LANGLEY, of Ashford House, Rhosdhu, Paper Maker, JAMES
WHITTINGHAM, of Bank Street Chambers, off Hope Street, Commission Agent, and
JOHN HARRIS, of Westminster Buildings, Architect, all in Wrexham, in the County
of Denbigh, do hereby declare the nature of this invention to be as follows:--
This invention relates to the process of and apparatus for sizing in paper making
and has for its object certain improvements, whereby the process is carried out
quicker, and with less expenditure of labour than hitherto.
By this invention we provide one or more pairs of rollers covered with bristles,
hair fibre, felt, or other suitable material, working in a frame and driven by power
so that the paper or pulp is lifted out of the size at one or more points over the
size tank or tub, and subjected to a brushing process, by passing it between the
said rollers, or by any other means, to remove the surplus size and nap or
fluff, and so prepare it for resizing and resizing it without the necessity of drying
it previously.
To go more into detail, the size tank is fitted with a frame and rollers as above
described fixed over the size tank, the rollers aforesaid carrying a felt or other
suitable band on which in the case of hand made paper the paper or pulp is carried,
but in the case of machine made paper the paper is carried between the rollers
without any band. The lower roller in said frame is covered with felt in the case
of the hand made papers, and with bristles, hair fibre or other suitable material
in the case of machine made papers, and the upper roller is covered with bristles,
hair fibre or other suitable material between which the paper or pulp would
pass, the said rollers being driven by power. In the case of hand made papers, the
rollers revolve in the same direction as the guide or carrying band, but in the case of
machine made paper they are made to revolve in opposite directions to each other,
the bottom roller revolving in the opposite direction to those guide or carrying
rollers or cylinders over which the paper or pulp is carried. The paper is acted
upon by the brush roller or rollers removing all surplus size and nap or fluff, and
preparing it for resizing which would take place directly by being again carried
through the size as before described. This process being repeated where necessary
according to the class of paper under treatment by providing one or more other
similar frames with rollers covered and driven as before described.
The brush rollers may be cleansed by making them revolve in a portable and
adjustable enclosed or open trough made of tin, copper, iron or other suitable
material which would be fixed on the frame with hinged top with projecting lugs
and bolts and nuts or other fastenings, one end being lower than the other and
having an outlet conduit or pipe, and a spray pipe or fan at centre of trough on one

page_text: or both sides, fed with hot or cold water or chemical or any mixture of same as
required, from a tank or cylinder pipes and stop cocks.
Dated this 7th day of December 1897.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicants.
Improvements in the Process of and Apparatus for Sizing Paper.
We, FREDERICK LANGLEY, of Ashford House, Rhosdhu, Paper Maker, JAMES
WHITTINGHAM, of Bank Street Chambers, off Hope Street, Commission Agent, and
JOHN HARRIS, of Westminster Buildings, Architect, all in Wrexham, in the County
of Denbigh, 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:-
This invention relates to the process of and apparatus for sizing in paper making
and has for its object certain improvements, whereby the process is carried out
quicker, and with less expenditure of labour than hitherto.
By this invention we provide one or more pairs of rollers covered with bristles,
hair fibre, felt or other suitable material, working in a frame and driven by power so
that the paper or pulp is lifted out of the size at one or more points over the size
tank or tub, and subjected to a brushing process, by passing it between the said
rollers, or by any other means, to remove the surplus size and nap or fluff and
so prepare it for resizing by re-immersion without the necessity of drying it
previously.
The invention will be understood from the following description, reference being
had to the accompanying drawings, in which,
Figure 1 is a diagrammatic elevation of our invention;
Figure 2, an end view;
Figure 3, a plan; and
Figure 4, a detail view of the cleaning device.
Referring to these figures, A and B is the pair of rollers working in the frame C
and driven by power, and so arranged that the paper or pulp is lifted out of the size
during the process of sizing and subjected to a process of brushing to remove the
surplus size and nap or fluff. D is a long tank of size having the rotary guide
rollers E submerged in the size under which the travelling band or web Fis
carried. E¹ are guide or feed rollers for this band or web and E2 glazing or pressure
rollers.
The band or web F is of felt or other suitable material on which in the case of
hand-made paper, the paper or pulp is carried, but in the case of machine made
paper, the web is carried between the rollers without any band. The lower roller B
in said frame C is covered with felt in the case of hand made papers, or with
bristles, hair, fibre or other suitable material in the case of machine made papers.
The upper roller A is covered with bristles, hair or other suitable material, and
between these two rollers, the paper, or the pulp and band F, passes. The paper
or pulp as the case may be is acted upon by the brush roller or rollers, removing
surplus size and nap or fluff, and preparing it for resizing, the resizing taking place
directly by being again carried through the size under the rollers E, as before
described. This process of lifting the paper or pulp out of the tank and
re-immersing it is repeated as often as necessary, according to the class of paper
under treatment, by providing one or more similar frames with rollers covered and
driven as before described.

page_text: The brush rollers B and A may be cleaned by making them revolve in a portable
and adjustable closed or open trough F, Figure 4, made of tin, copper, iron or other
suitable material, which is fixed on the frame C with a hinged top f and projecting
lugs and bolts and nuts or other fastenings, one end of the trough being lower than
the other so as to allow the washing water to flow to that end, where an outlet
conduit or pipe is provided. H is a spray pipe on one or both sides fed with hot or
cold water or chemical or any mixture of same as required from a tank or cylinder
through a pipe with stop cocks, the action of which spray pipe is to clean the rollers
as they revolve in the trough. I are apertures in the casing to allow of the entrance
and exit of the paper or web. The paper or web however need not pass through
the cleaning trough at all, which is removable. When required to use the cleaning
trough therefore, the lower roller will be lifted and replaced above the web or
carrying band (when the latter is used) for cleaning, and the cleaning trough then
placed in position. In such case the apertures I are not required.
In the
The rollers revolve in the same direction as the guide or carrying band.
case of hand-made paper the paper is carried on a band, but in machine-made it is
carried through the rollers without any band.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed, we declare that what we
claim is :-
:―
1. The improvement in sizing paper or paper pulp which consists in causing a
travelling web of paper or a travelling band carrying paper pulp, to be alternately
submerged in and lifted from a tank of size, and in subjecting the paper or pulp
between each immersion to a brushing process by passing it between rotary rollers
covered with bristles, hair, fibre, felt or other suitable material to remove the
surplus size and nap or fluff, and so prepare it for re-sizing by re-immersion, without
the necessity of drying it previously.
2. An apparatus for sizing paper or paper pulp, comprising a tank of size having
rotary guide rollers submerged therein, under which a web of paper or a band
carrying the paper pulp is carried, in combination with one or more pairs of rotary
rollers covered with bristles, hair, fibre, felt or other suitable material and so
arranged as to lift the paper or pulp out of the size during the process of sizing and
subject it to a brushing process, whereby the surplus size and nap or fluff is
removed to prepare it for re-sizing by re-immersion in the tank, without the
necessity of drying it previously, substantially as described.
3. In sizing apparatus for paper or paper pulp, the device for cleaning the brush
rollers substantially as described.
4. The general combined arrangement and construction of parts forming our
improved apparatus for sizing paper, substantially as set forth.
Dated this 8th day of October 1898.
WM. P. THOMPSON & Co.,
Patent Agents, of Liverpool, Manchester, Birmingham, and London.