IMPROVEMENTS IN KIERS OR APPARATUS FOR BOILING AND CLEANSING DILD
Year: 1882

page_text: LETTERS PATENT to James Dimmock of Over Darwen in the County of
Lancaster for an Invention of "IMPROVEMENTS IN KIERS OR APPARATUS FOR
BOILING AND CLEANSING DILD
PROVISIONAL SPECIFICATION left by the said James Dimmock at the Office
of the Commissioners of Patents on the 23rd December 1882.
JAMES DIMMOCK of Over Darwen in the County of Lancaster
IN KIERS OR APPARATUS FOR BOILING AND CLEANSING PULP
FABRICS
"
26
IMPROVEMENTS
MATERIAL AND
My invention relates to a construction and arrangement of kiers or vessels for
boiling and cleansing material for paper pulp such as esparto, grass, straw, rags, or
other fibrous material, the kiers so constructed being also available for boiling or
cleansing pieces of fabric. The kier according to my invention, is a vessel of
cylindrical form having at each end a hole fitted with a tight cover for charging
and discharging the material, and at either end a cock or valve for blowing out
liquid. In the middle of the vessel is fixed a transverse grid or grating which
divides it into two compartments so that the material in the one compartment is
kept separate from that in the other whilst there is a free passage for flow of
liquid through the grid from the one compartment to the other. At each side of
the vessel is fixed a tubular trunnion mounted in bearings so that the vessel can be
caused to revolve on a horizontal axis at right angles to the axis of its cylindrical
form. Through the trunnion at the one side is admitted the water, lye or other
liquid employed for cleansing, and steam, the steam entering by an injector nozzle
so as to drive the liquid in. Through the other trunnion the spent or foul liquor
is discharged after passing through a longitudinal grating fixed within the kier in
front of the opening to the discharge trunnion. The kier being charged in both
its compartments with the pulp material or fabric that is to be boiled or cleansed,
and the charging holes being closed, the kier is caused to revolve on its trunnions
while the water, cleansing liquid and steam are passed into it through the one
trunnion and the spent or foul liquor is discharged through the other.
revolution of the kier keeps the material in agitation in presence of the liquid,
tumbling it over and over in each compartment while the liquid gets free access to
all parts of it.
The

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said James Dimmock in the Great Seal Patent Office on the 21st June
1883.
JAMES DIMMOCK of Over Darwen in the County of Lancaster
"IMPROVEMENTS
IN KIERS OR APPARATUS FOR BOILING AND CLEANSING PULP MATERIAL AND
FABRICS"
•
My invention relates to a construction and arrangement of kiers or vessels for
boiling and cleansing material for paper pulp, such as esparto grass, straw, rags, or
other fibrous material, the kiers so constructed being also available for boiling or
cleansing pieces of fabric. The kier according to my invention is represented in
the accompanying drawings, Fig. 1 being a vertical section, Fig. 2 a sectional plan,
and Fig. 3 an elevation shewing the kier with the usual gearing and pipe
connections. The kier is a vessel A. of cylindrical form having at each end a hole
fitted with a tight cover B for charging and discharging the material, and at one
end a cock or valve C for blowing out liquid. In the middle of the vessel is fixed
a transverse grid or grating D which divides it into two compartments so that the
material in the one compartment is kept separate from that in the other whilst
there is a free passage for flow of liquid through the grid from the one compartiment
to the other. At each side of the vessel is fixed a tubular trunnion E and F each
mounted in bearings, so that the vessel can be caused to revolve on a horizontal
axis at right angles to the axis of its cylindrical form. Through the trunnions is
admitted the steam, water, lye or other liquid employed for cleansing, and the spent
or foul liquor is discharged, longitudinal gratings G are fixed within the kier in
front of the openings to the trunnions. The kier being charged in both its com-
partments with the pulp material or fabric that is to be boiled or cleansed, and the
charging holes being closed, the kier is caused to revolve on its trunnions while the
steam is passed into it through the trunnion. The revolution of the kier keeps
the material in agitation in presence of the liquid, tumbling it over and over in each
compartment while the liquid gets free access to all parts of it.
Having thus described the nature of my invention and in what manner the same
is to be performed, I claim in respect of kiers or vessels for boiling and cleansing
pulp material and fabrics:
Dividing the kier into two compartments by a transverse grid or grating,
substantially as and for the purposes herein set forth.
In Witness whereof I the said James Dimmock have hereunto set my hand
and seal this twentieth day of June in the year of our Lord One thousand
eight hundred and eighty three.
TEHNOOZ