IMPROVEMENTS IN Apparatus FOR BLEACHING
Year: 1871

page_text: LETTERS PATENT to Squire Brierley, of Pendleton, in the County of
.
Lancaster, Bleacher, for the Invention of "IMPROVEMENTS IN Apparatus
FOR BLEACHING."
Sealed the 3rd November 1871, and dated the 12th May 1871.
I
PROVISIONAL SPECIFICATION left by the said Squire Brierley at the
Office of the Commissioners of Patents, with his Petition, on the
12th May 1871.
[
I, SQUIRE BRIERLEY, of Pendleton, in the County of Lancaster,
Bleacher, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPARATUS FOR BLEACHING," to be as follows:-
My Invention consists of an improved high-pressure self-acting steam
bowking kier for bleaching cotton, linen, and other fibres, yarns, and
cloth, also wood fibre, paper pulp, and other substances.
The object of my Invention is to produce and maintain a constant
circulation of bleaching liquor through the fibres or other substances in
the kier by means of high-pressure steam, which is introduced by an
injector from the under side of the kier and rises up a central pipe, from

page_text: the top of which the bleaching liquor falls on to the fibres or other
substances, and after percolating through them is collected under a false
bottom in the kier. The bleaching liquor is conveyed from the bottom
of the kier by two or more side pipes into a vessel containing the
injector, and when the high-pressure steam is turned on the steam
carries the bleaching liquor up the central pipe above referred to. By
this means the processes of bleaching are performed more expeditiously
and economically than heretofore, and the quality of the work is also
improved.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Squire Brierley in the Great Seal Patent Office on
the 10th November 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SQUIRE
BRIERLEY, of Pendleton, in the County of Lancaster, Bleacher, send
greeting.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twefth day of May, in the year of our
Lord One thousand eight hundred and seventy-one, in the thirty-fourth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Squire Brierley, Her special licence, that I,
the said Squire Brierley, my executors, administrators, and assigns, or
such others as I, the said Squire Brierley, my executors, administrators,
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for " IMPROVEMENTS IN APPARATUS FOR
BLEACHING," upon the condition (amongst others) that I, the said Squire
Brierley, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent...
NOW KNOW YE, that I, the said Squire Brierley, do hereby declare
the nature of my said Invention, and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the
following statement (that is to say) :
:-
My Invention consists of an improved high-pressure self-acting steam
bowking kier for bleaching cotton, linen, and other fibres, yarns, and
cloth, also wood fibre, paper pulp, and other substances.
The object of my Invention is to produce and maintain a constant
circulation of bleaching liquor through the fibres or other substances in
the kier by means of high-pressure steam, which is introduced by an
injector from the under side of the kier and rises up a central pipe, from
the top of which the bleaching liquor falls on to the fibres or other:
substances, and after percolating through them is collected under a
false bottom in the kier.
And in order that my Invention may be fully understood and readily
carried into operation, I will proceed to describe the accompanying
Drawing, which represents partly in section a kier of the ordinary
construction to which my improvements are applied.
g
a is the outer part of the kier; b, the perforated false bottom; c, the
central pipe; d, the inverted dish for distributing the bleaching liquor,
and e the safety valve, all which parts are made as usual. To the under
side of the kier is rivetted the flange of the piece g containing the side
pipes g; the centre portion of the piece 9 rises partly into the kier and
forms a continuation of the central pipe c; to the under side of the
piece is secured the top flange of the vessel h, and in the centre of
this vessel is secured the lower end of the injector nozzle i. The lower
part of the vessel / contains the passages j and k, the former being
connected to the steam pipe and the latter to the blow-off cock l.
The mode of operation is as follows:-After the kier has been charged
with the cloth or other material to be bleached and the proper bleaching
liquor has been admitted into the vessel h and into the space below the
false bottom the steam is turned on and passes through the passage j
into the injector nozzle i, the upper end of which is bell mouthed to
contract the annular opening between the end of the nozzle and the inside
of the central pipe c. I prefer to use steam at a pressure of forty or fifty
pounds to the square inch, but do not limit myself thereto. When the
steam rushes up the nozzle i into the central pipe c it carries with it the
bleaching liquor, which coming against the dish d is distributed by it
over the fabrics or other substances in the kier, and after percolating
through them falls again into the space below the perforated false

page_text: bottom 6 and into the vessel h, from whence it is again carried up the
pipe c by the steam passing through the nozzle i. In some cases the
injector may be placed in a side pipe. By this means a constant
circulation of the bleaching liquor is kept up through the fabrics or
other substances. in the kier, and the bleaching is performed more
expeditiously and economically than heretofore, while the quality of the
work is improved.
Having thus stated the nature of my Invention, and described the
manner of performing the same, I declare that I claim, the use and
application of an injector to produce a constant circulation of bleaching
liquor in a kier, as shewn and described.
my
In witness whereof I, the said Squire Brierley, have hereto set
hand and seal, this Ninth day of November One thousand eight
hundred and seventy-one.