AN IMPROVED METHOD OF AND APPARATUS FOR SEPARATING SOLID FROM LIQUID SUBSTANCES
Year: 1861

page_text: LETTERS PATENT to John Rosindell, of Mile End, in the County of
Middlesex, Brewer, for the Invention of "AN IMPROVED METHOD OF AND
APPARATUS FOR SEPARATING SOLID FROM LIQUID SUBSTANCES."
Sealed the 20th June 1862, and dated the 24th December 1861.
PROVISIONAL SPECIFICATION left by the said John Rosindell at the
Office of the Commissioners of Patents, with his Petition, on the 24th
December 1861.
I, JOHN ROSINDELL, of Mile End, in the County of Middlesex, Brewer, do
hereby declare the nature of the said Invention for "AN IMPROVED METHOD OF AND
APPARATUS FOR SEPARATING SOLID FROM LIQUID SUBSTANCES," to be as follows:-
My Invention is intended, chiefly for the separation of yeast from liquor
containing the same, but'it is applicable to the separation of solid matters from
liquids generally.
My Invention consists in effecting the separation by means of metal strainers
or bags of some pervious material, placed in metal or other frames, under and
in communication with a pipe or pipes, in which a pressure of the liquid
from which the solid is to be separated is maintained by a head or column
of the said liquid. The liquid itself is held in a supply tank at the top of
the column, and cocks are fitted at top and bottom of the pipes, to admit
and shut off the supply as required. The pressure due to the column forces

page_text: the liquid parts through the strainers or bags, and the solid matter remains
inside the strainers or bags, to be collected when a sufficient quantity has
accumulated therein; as soon as one strainer or bag is thus charged with
the solid matter, the supply is shut off, the strainer or bag is removed, and
another substituted for it. For some matters, I find it necessary to carry
a pipe or pipes up the column for containing steam or hot air, to keep the
matters in a liquid state.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Rosindell in the Great Seal Patent Office on the
24th June 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, JOHN ROSINDELL,
of Mile End, in the County of Middlesex, Brewer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of December, in the year of
our Lord One thousand eight hundred and sixty-one, in the twenty-fifth year
of Her, reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said John Rosindell, Her special licence that I, the said
John Rosindell, my executors, administrators, and assigns, or such others
as I, the said John Rosindell, 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
"AN IMPROVED METHOD OF AND APPARATUS FOR SEPARATING SOLID FROM LIQUID
SUBSTANCES," upon the condition (amongst others), that I, the said John Rosin-
dell, 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 John Rosindell, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement thereof, reference being had to. the Drawings hereunto
annexed, that is to say :-

page_text: My Invention is intended chiefly for the separation of yeast from liquor
containing the same, but it is applicable to the separation of solid matters from
¡liquids generally.
My Invention consists in effecting the separation by means of metal strainers
or bags of some pervious material placed in metal or other frames under and in
communication with a pipe or pipes in which a pressure of the liquid from
which the solid is to be separated is maintained by the head or column of the
said liquid. The liquid itself is held in a supply tank at the top of the column,
and cocks are fitted at top and bottom of the pipes to admit and shut off the
supply as required.
Figure 1 of the accompanying Drawings, is a longitudinal section of an
apparatus constructed according to my Invention for separating solid from liquid
substances.
. A is a tank or receiver set at a sufficient height above the filtering apparatus
to obtain the necessary pressure, into which the semi-fluid substance to be
acted on is run; B is a pipe connecting the tank with the filtering apparatus
below; C, C, are cocks for regulating the supply; D, D, are frames or
vessels with internal ribs placed at such a distance apart as to allow of the liquid
passing away freely; E, E, are bags or strainers placed inside the vessels D, D ;
E', E', are ribbed columns set vertically, over which the bags E, E, are passed
previous to their being put into the vessels D, D, in order to increase the
filtering surface. One of these ribbed columns with the vessel for containing
the bags is shewn detached in plan at Figure 2; F, F, are plates fixed on the
vessels D, D, and over which the mouths of the bags are drawn during the
process, and are made tight by means of wrought-iron bands G, provided
with screws for clipping the bags firmly to the edge of plates; a detached
view of this band is given at Figure 3; I is an opening at the bottom of
the filtering apparatus by which the liquid expressed runs into an open back or
vessel K, on which the vessels D rest; M, M, are cages or guards above the
filtering vessels, for the purpose of protecting the bags, a detached view of one
of which is given at Figure 4; N is a cock by which the expressed liquid
is drawn off from the apparatus. The pressure due to the column forces the
liquid parts through the strainers or bags E, E, and the solid matter remains
inside the strainers or bags to be collected when a sufficient quantity has accu-
mulated therein. As soon as one strainer or bag is thus charged with the
solid matter the supply is shut off by the cocks C, C, the strainer or bag is re-
moved, and another substituted for it. For some matters, I find it necessary
to carry a pipe or pipes up the column for containing steam or hot air to keep
the matters in a liquid state.

page_text: And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim,-
First, expressing solid from liquid substances by means of pressure obtained
from a head or column of such liquid substances placed above the filtering
apparatus.
Second, the construction of apparatus for expressing solid from liquid
substances, as herein-before described and illustrated in the accompanying
.Drawings.
In witness whereof, I, the said John Rosindell, have hereunto set my
hand and seal, this Twenty-fourth day of June, One thousand eight
hundred and sixty-two.
JOHN ROSINDELL. (L.S.)
JOHN ROSINDELL. (L.S.)