Year: 1887

page_text: * Date of Application, 15th Apr., 1887
Complete Left, 16th Jan., 1888
Complete Accepted, 17th Feb., 1888
We, THOMAS GOODALL, Manager, and THOMAS WEBSTER, Engineer, both of the
Hendon Paper Works Company Limited, Sunderland, County of Durham, do hereby
declare the nature of the said Invention, to be as follows:-
This Invention relates to improved means for straining pulp for the manufacture of
paper, half stuff, mill board, and other analogous material.
The improved apparatus is constructed with a vat or container made of wood or of
iron or of any other suitable metal or material and of any convenient shape, and into
which the material to be strained is fed in any suitable manner.
Internally the vat or container is adapted with fixed or removable straining plates
preferably constructed of brass, copper, zinc or of other suitable metal, and which are
placed across the vat vertically or in any other position at a suitable distance apart,
the material to be strained being fed between the opposite plates, and discharged
through outlets made in the sides of the vat at convenient levels.
The opposite sides of the vat or container, the sides adjacent to the said straining
plates are made with other openings of any suitable size and form and which are
closed by being adapted with corresponding or appropriately shaped vertically disposed
discs made of wood iron or other suitable metal or material and with elastic diaphragms
made of india rubber, leather or other suitable elastic material, which diaphragms
connect the edges of the said dises with the edges of the said openings, and permit of
the discs receiving a to-and-fro movement which is imparted thereto by any suitable
actuating mechanism connected to the said discs by guided rods, or by other appropriate
means, the effect being such that the combined and alternating effects of suction and
compression are effective in efficiently straining and displacing the material fed to the
said vat or container.
This 19th dase of Anil 1887
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicants.

page_text: We, THOMAS GOODALL, Manager, and THOMAS WEBSTER, Engineer, both of the
Hendon Paper Works Company, Limited, Sunderland, County of Durham, do hereby
declare the nature of the said 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 improved means for straining pulp for the manufacture of
paper, half stuff, mill board and other analogous material.
The improved apparatus is illustrated on the accompanying drawings in sectional
elevation in Fig. 1. in plan view partly in section in Fig. 2. and in end elevation in
Fig. 3.
The apparatus is constructed with a vat or container, 4, which may be made of wood
or of iron or of any other suitable metal or material and of any convenient shape and
dimensions and into which the material to be strained is or may be fed in any suitable
manner.
Internally the vat or container, 4, is adapted with fixed or removable straining
plates, 5, preferably constructed of brass, copper, zinc or of other suitable metal, and
which are placed across the vat at a suitable distance apart, and are retained in position
by bars, 17, hinged at, 18, and retained in position by screws, 19: the material to be
strained being fed into the vat between the opposite strainer plates, 5.
The sides of the vat or container opposite to the straining plates are made with
openings, 6, which may be made of any suitable size snd form and are closed by being
adapted with corresponding or appropriately shaped discs, 7, which may be made of
wood, iron or other suitable metal or material, and are adapted or provided with elastic
diaphragms, 8, which may be made of india rubber, leather, or other suitable elastic
material and connect the edges of the discs with the edges, 9, of the openings, 6, and
are bolted or suitably secured thereto as represented, and permit of the opposite
discs, 7, which are connected together by cross bars, 10, and side connections, 11,
working in suitable guides, 12, or by other suitable means receiving a to-and-fro
movement which may be imparted thereto by a cranked shaft, 13, and connecting
rod, 14, or by any suitable actuating mechanisin, the alternating effects of suction and
compression thus produced being effective in efficiently straining the material fed to
the said vat or container, through the said strainers, after which the purified pulp
escapes to the paper machines through suitable outlets, 15, made in the sides of the
vat, the dirt and refuse left in the vat escaping by an outlet, 16, at the bottom of
the vat whence it may pass to an auxiliary strainer to be restrained and used over
again.
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:-
1. The construction of apparatus for straining pülp substantially in the improved
manner herein before described.

page_text: 2. The vat adapted or provided with opposite transverse straining plates in
combination with connected and guided reciprocating discs flexibly mounted in
openings in the vat or container opposite and on the outlet sides of the straining plates,
substantially as hereinbefore described.
3. The connected and guided reciprocating discs flexibly mounted in opposite
openings in the vat or container, and the application thereof for the purpose herein-
before described.
4. Straining pulp through straining plates adapted to a vat or container by the
alternating effects of suction and compression produced by means operating substantially
in the manner herein before described.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicants.