Improvements applicable to Refining Engines used in the Manufacture of Paper.
Year: 1890

page_text: Date of Application, 8th May, 1890
Complete Specification Left, 7th Feb., 1891-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements applicable to Refining Engines used in the
Manufacture of Paper.
I, EDWARD PARTINGTON, of Turn Lee Paper Works, Glossop, in the County
of Derby, Paper Manufacturer, do hereby declare the nature of this invention to
be as follows:-
This invention relates to the refining engines used in the manufacture of paper
the objects of the invention being to increase the amount of work performed by the
engine and at the same time to improve the fibre of the "stuff."
":
The ground stuff" is usually placed in a cistern, elevated above the refining
engine and is fed into the latter by gravitation and for this purpose it is necessary
to have the "stuff" mixed with such a quantity of water that it will flow into the
engine by gravitation and it is found in practise that the presence of this super-
abundance of water interferes with the action of the refining engine upon the
fibre.
27 into the
According to my invention I employ a pump to force the "stuff
refining engine by which means I am enabled to mix and use the "stuff" in a more
concentrated form and not only can a larger quantity of "stuff" be passed through
the engine in a given time by these means, but the fibre being in a less diluted state
is much more favorably acted upon by the refining engine than when there is a
superabundance of water.
Any form of pump or fan may be employed but I prefer to use a pump of the
single-acting reciprocating type as it is found in practise to work better with the
thick "stuff" and to be less liable to become choked than a double-acting or a
rotary pump, and I have a pipe or passage from the top clack valve leading to the
bottom clack valve in which pipe or passage I place a stop cock or stop valve.
When this stop cock or valve is closed the whole amount of "stuff" drawn by
the suction of the piston will be forced forward into the refining engine; and on
the other hand if this cock or valve were to be fully opened, no "stuff" would be
forced forwards but would merely circulate backwards and forwards from one clack
valve to the other. And it will therefore be evident that by opening or closing this
stop tap or valve more or less the quantity of "stuff" forced through the engine
may be regulated as desired, the stroke of the pump being always constant.
Dated this 7th day of May 1890.
GEO. DAVIES & SON,
4, St Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements applicable to Refining Engines used in the
Manufacture of Paper.
I, EDWARD PARTINGTON, of Turn Lee Paper Works, Glossop, in the County
of Derby, Paper Manufacturer, 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 refining engines used in the manufacture of paper,
the objects of the invention being to increase the amount of work performed by the
engine and at the same time to improve the fibre of the pulp."
The ground pulp" is usually placed in a cistern elevated above the refining
engine and is fed into the latter by gravitation and for this purpose it is necessary

page_text: to have the "pulp" mixed with such a quantity of water that it will flow into the
engine by gravitation and it is found in practise that the presence of this super-
abundance of water interferes with the action of the relining engine upon the
fibre.
The nature of my said invention and the manner in which the same is to be per-
formed or carried into practical effect will be readily understood on reference to the
annexed two sheets of drawings and the following explanation thereof.
Fig. 1. (Sheet 1) on the drawings is a side elevation and Fig. 2 an end elevation
of a refining engine with my improvements shown as applied thereto.
According to my invention I employ a force pump a arranged as hereafter
described to force the pulp into and through the refining engine by which means
I am enabled to mix and use the pulp in a more concentrated form and not only
can a larger quantity of pulp be passed through the engine in a given time by these
means but the fibre being in a less diluted state is much more favorably acted upon
by the relining engine than when there is a superabundance of water.
Any form of pump may be employed but I prefer to me a pump of the single
acting reciprocating type as shown on the drawings as it is found in practise to
work better with the thick pulp and he less liable to become choked than a
double acting or a rotary pump, and I have a pipe or passage Fig. 1. from above
the top or delivery valved lending to the spree below the said valve in which pipe
or passage I place a stop cock or stop valve e (sze also enlarged sectional view
Fig. 3. Sheet 2).
When this stop cock or valve, is closed the whole amount of pup drawn by the
suction of the piston or ram will be forced forwand along the delivery pipe into
and through the refining-engine and on the other hand if this cock or valve were
to be fully opened no pulp would be forved forwards but would merely circulate
backwards and forwards past the delivery valve without moving the suction
valve h.
And it will therefore be evident that by opening or closing this stop tap or
valve more or less the quantity of pulp forced through the engine may be
regulated as desired, the stroke of the piston or ram being always constant.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
The combination (in connection with a pulp refining engine) of a force pump,
with a delivery valve fitted with a pipe or passage leading from above the said
valve to the space below the same, suel passage being provided with a stop rock or
valve by opening or closing which, more or less, the amount of pulp forced through
the engine may be regulated whilst the stroke of the pump may always remain
constant.
Tatal this con day of
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.