Improvements in Apparatus for Mixing and Regulating Paper Stuff.
Year: 1893

page_text: Date of Application. 24th June, 1893
Complete Specification Left, 24th Apr., 1894-Accepted, 25th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Mixing and Regulating Paper Stuff.
I, WILLIAM BORLAND, of Blinkbonnie, Currie, in the County of Midlothian,
North Britain, Paper-maker Foreman, do hereby declare the nature of this invention
to be as follows:-
This invention relates to an apparatus for mixing and regulating the quantity of
pulp and size water so as to run regular weights of paper on to the paper making
machine, and the invention consists as follows:
The pulp is pumped by the stuff pump into the usual high box, from which
there is a large overflow back to the chest for the surplus pulp. From this box
the pulp which is intended to be passed on to the paper making machine flows into
a chest at a regular level. In this chest there is placed an agitator actuated by
bevel or spur gearing so as to mix the pulp with the water; the water after being
mixed with the pulp in this box, thereafter flows through from the bottom into
another chest, in which is placed a hydrometer. The top of this hydrometer is
fixed up to a balance lever and at the opposite end to that at which it is coupled
up to the hydrometer there is a valve actuated by the rise and fall of the hydro-
meter, which admits the desired quantity of water into the pulp thus securing the
regular weight of paper. By the slightest increase of pulp in the water the
hydrometer turns on sufficient water to thin it, or shuts off water if too thin. When
a desired weight of paper is arrived at, the apparatus works automatically after
being set.
My invention thus provides an apparatus in which the pulp is thoroughly
mixed with the water, and in which the water is also automatically regulated.
Dated this 22nd day of June 1893.
JOHNSONS,
115, St. Vincent Street, Glasgow, Petitioner's Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Mixing and Regulating Paper Stuff.
I, WILLIAM BORLAND of Blinkbonnie, Currie, in the County of Midlothian,
North Britain, Papei-inaker Foreman, 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 an apparatus for mixing and regulating the quantity of
pulp and size water so as to maintain a regular density of pulp flowing to the
paper making machine; and the invention consists as follows and as shewn in the
accompanying drawings.
Figure 1 is a sectional elevation and Figure 2 a plan of my improved apparatus.
The pulp is pumped by the stuff pump into the usual high box A from which
there is a large overflow B back to the chest for the surplus pulp. From this
box A the pulp which is intended to be passed on to the paper making machine
flows into the chest C at a regular level. In this chest C there is plac d
an agitator D, actuated by bevel or spur gearing E, in such a manner as to mix
the pulp with the water; the water and pulp thereafter flows through from the
bottom into another chest F, in which is placed a hydrometer G. The top of this

page_text: hydrometer G is fixed up to a balance lever H, and at the opposite end of the said
lever to that at which it is coupled up to the hydrometer G, there is a valve J, in
communication with the size water in chest A¹, actuated by the rise and fall of the
hydrometer G which admits the desired quantity of water into the pulp thus
securing the regular density of pulp. The hydrometer G is loaded with weights
to cause it to sink to a certain depth in the pulp when of the required density, and
any increase or decrease in the density causes a movement of the hydrometer G
which increases or decreases the quantity of water added to the pulp from the
chest A through the valve J.
My invention thus provides an apparatus in which the pulp is thoroughly mixed
with the water, and in which the water is also automatically regulated.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1st. In apparatus for regulating the density of paper pulp, the application of an
agitator placed in a separate vessel from the water regulating mechanism, whereby
a uniform mixture is passed through the vessel in which the hydrometer is
placed, substantially as hereinbefore described and shown in the accompanying
drawings.
2nd. In apparatus for mixing paper stuff, the hydrometer G, substantially as
and for the purposes hereinbefore described and shown in the accompanying
drawings.
3rd. In apparatus for mixing paper stuff, automatically regulating the supply
of water, substantially as and for the purposes herein before described and shown
in the accompanying drawings.
4th. The general arrangement, construction and combination of the various
parts constituting the improvements in apparatus for mixing and regulating paper
stuff, substantially as and for the purpose herein before described and shown in the
accompanying drawings.
Dated this 23rd day of April 1894.
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.