IMPROVEMENTS IN MACHINERY OR APPARATUS FOR FILTERING LIQUIDS
Year: 1866

page_text: LETTERS PATENT to William Edward Newton, of the Office for Patents,
66, Chancery Lane, in the County of Middlesex, Civil Engineer, for
the Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
FILTERING LIQUIDS."-A communication from abroad by Robert Stewart,
in the Sands of Now Vale Inited Stator of America
PROVISIONAL SPECIFICATION left by the said William Edward Newton
at the Office of the Commissioners of Patents, with his Petition, on the
24th September 1866.
I, WILLIAM EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane,
in the County of Middlesex, Civil Engineer, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
FILTERING LIQUIDS," to be as follows:-
This Invention relates to improvements on the well-known centrifugal
filtering apparatus, in which the liquid to be filtered is forced outward through
the filtering medium by centrifugal forcé induced by the rotation of the
apparatus.
The present Invention consists in so constructing the apparatus as to
prevent the escape of vapour and the overflow of the liquid during the distilling
process. In this machine there is no communication with the interior of the
centrifugal vessel, except that which is afforded by the pipe through which
the liquid is introduced into the inside and through the filtering chamber,

page_text: through which the liquid is forced by centrifugal force due to the rotation of
the apparatus.
This Invention also includes a disc or circular flange, which is employed to
cause the liquid to enter the filtering chamber at a suitable elevated point to
compensate for gravitation, which influences the liquid in its passage through
the filtering medium.
The central shaft extends vertically through an immovable circular casing,
within which and fixed to the shaft so as to revolve therewith are three con-
centric cylinders placed one within the other, so as to form two filtering
chambers. Each of the
Each of the cylinders has a top and bottom, and is covered
additionally by the casing; they are all perforated, so that the liquid when
introduced into the cylinder may pass thence into and through the apparatus,
such passage or movement of the liquid being superinduced by the.centri-
fugal force it receives under the rotation of the cylinders. The chambers are
filled with bone black or other filtering material, and the filtered liquid issuing
in a rarefied condition from the first chamber gathers on the wings or on the
sides of the casing, thence descends to the bottom of the latter, and passes off
in a purified state through the discharge spout. The upper part of the central
vertical shaft is made hollow or tubular, and the liquid on entering therein
from a pipe, to which the shaft is coupled by a stuffing box, passes into a
chamber which is formed between the shaft and the interior of one of the
cylinders. The liquid on entering is received on to a disc or circular plate,
which directs the liquid into the filtering chamber at the proper point, so as
to prevent the larger quantity of liquid from accumulating in and moving
through the chamber near the bottom thereof.
In the apparatus above described the liquid after being introduced has no
place to escape, either in the liquid or gaseous form, except through the
filtering chamber or chambers. The apparatus can be used for decolorizing,
deodorizing, rectifying, and all other similar purposes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Edward Newton in the Great Seal Patent Office on
the 21st March 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane, in the County
of Middlesex, Civil Engineer, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of September, in the year of our
Lord One thousand eight hundred and sixty-six, in the thirtieth year of Iler
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said William Edward Newton, Her special licence that I, the said William
Edward Newton, my executors, administrators, and assigns, or such others as I,
the said William Edward Newton, 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 MACHINERY OR APPARATUS FOR FILTERING LIQUIDS," being a
communication to me from abroad, upon the condition (amongst others) that
I, the said William Edward Newton, 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 William Edward Newton, 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 follow-
ing statement, reference being had to the Drawing hereunto annexed, and to.
the letters and figures marked thereon (that is to say) :-
This Invention relates to "improvements on the well-known centrifugal
filtering apparatus, in which the liquid to be filtered is forced outward through.
the filtering medium by centrifugal force induced by the rotation of the
apparatus.
As heretofore constructed such apparatus could not be successfully applied
to the filtration of distilled liquors for the want of some means for preventing
the escape of the vapor of the liquor introduced for filtration, and for the want
of suitable means to prevent the liquor from escaping at the top of the
centrifugal vessel by overflow.
.
.
The present Invention consists in so constructing the apparatus as to
prevent the escape of vapor and the overflow of the liquid during the distilling
process. In this machine there is no communication with the interior of 'the
centrifugal vessel, except that which is afforded by the pipe through which
the liquid is introduced into the inside and through the filtering chamber,

page_text: torough which the liquid is forced by centrifugal force que to the rotation of
the apparatus.
This Invention also includes a disc or circular. flange, which is employed to
cause the liquid to enter the filtering chamber at a suitable elevated point to
compensate for gravitation, which influences the liquid in its passage through
the filtering medium.
In the accompanying Drawing Fig. I is a vertical central section of the
improved machine taken in the line x, x, of Fig. 2, which is a horizontal section
of the same taken in the line y, y, of Fig. 1.
A vertical shaft A carries a bevilled pulley a, through which rotary motion
is given, the shaft A by a friction wheel B (or other equivalent means) whose
shaft is provided with a pulley B', which receives motion from a steam engine
or other motor. By turning the wheel C the lever C¹ is made to elevate the
shaft A, and thereby throw the pulley a out of contact with the friction wheel B,
and thus arrest the operation of the machine. The central shaft A extends
vertically through an immovable circular casing D sustained by a frame E.
Within the casing D and fixed to the shaft A, so as to revolve therewith, are
three concentric cylinders F, F¹, F', placed one within the other so as to form
two filtering chambers G, G¹. The cylinder Fs and chamber G' are simply
used to effect the duplication of the filtering process, and are not to be
regarded as essential parts of the apparatus. Each of the cylinders has a top
and bottom, and is covered additionally by the casing D and frame E; they are
all perforated, so that the liquid when introduced into the cylinder F may pass
thence into and through the chambers G and G', such passage or movement
of the liquid being superinduced by the centrifugal force it receives under the
rotation of the cylinders. The chambers G and G' are filled with bone black
or other filtering material, and the filtered liquid on issuing in a rarefied con-
dition from the chamber G¹ gathers on the wings H, or on the sides of the
casing D, thence descends to the bottom of the latter, and passes off in a
purified state through the discharge spout I. The upper part of the shaft A
is made hollow or tubular, as seen at a¹, Fig. 1, and the liquid on entering
therein from the pipe J (to which the shaft A is coupled by a stuffing box)
passes into the chamber K, which is formed between the shaft and the interior
of the cylinders F, through the branching apertures a", which lead into the
chamber K at a point a little above its mid height, and the liquid on entering
the said chamber K is received on to a disc or circular plate L, which, as
before mentioned, is used to give the liquid a tendency to enter the chamber G
at the proper point, so as to compensate for the influence of gravity upon the

page_text: liquid, or, in other words, to prevent the larger quantity of liquid from accu-
mulating in and moving through the chamber near the bottom thereof.
The liquid is, however, allowed, to pass gradually to the lower part of the
chamber K through spaces between the periphery of the disc L and the
cylinder F.
In the apparatus above described the liquid after being introduced has no
place to escape, either in the liquid or gaseous form, except through the
filtering chamber or chambers. The apparatus can be used for decolorizing,
deodorizing, rectifying, and all other similar purposes.
What is claimed as new and desired to be secured by Letters Patent is,―
First, the rotating filtering apparatus closed on top to prevent the escape
of the liquor or vapor in combination with the hollow shaft and pipe for the
introduction of the liquor to the inside, as and for the purpose described.
Second, in combination with the centrifugal filter the distributing disc,
arranged as and for the purpose described.
In witness whereof, I, the said William Edward Newton, have hereunto
set my hand and seal, the Twenty-first day of March, in the year of
our Lord One thousand eight hundred and sixty-seven.
0 Witness,
J. W. MOFFATT,
66, Chancery Lane.
W. E. NEWTON. (L.B.)