A DOUBLE- ACTION OR BELT FILTERER."
Year: 1853

page_text: LETTERS PATENT to Squier Cheavin, of Spalding, in the County of
Lincoln, Plumber and Glazier, for the Invention of "A DOUBLE-
ACTION OR BELT FILTERER."
PROVISIONAL SPECIFICATION left by the said Squier Cheavin at
the Office of the Commissioners of Patents, with his Petition, on
the 5th December 1853.
I, SQUIER CHEAVIN, of Spalding, in the County of Lincoln, Plumber
and Glazier, do hereby declare the nature of the said Invention of "A
DOUBLE-ACTION OR BELT FILTERER" to be as follows (that is to say) :—
The filterer has two or more bottoms (the inner ones, or if only one,
such one being perforated, and at any required distance above the outer
orie) and may be of any material shape and. size. Inside is fixed a
cylinder, which is perforated at the sides; and in the interior of this
cylinder is suspended a bag made of felt or other similar material, to
which is appended a weight, and upon which rests a sponge or other.
porous substance (which bag is portable, and may, if the filterer be
employed for large works, be altogether. omitted); and round the
sides and partly upon the bottom of this cylinder are placed various
layers of gravel and other substances; and the water having passed
through the before-mentioned sponge, bag, and layers, descends to and
passes through various other layers of gravel and other substances,

page_text: which last-mentioned layers rest upon the perforated bottom, or (if more
than one are used) the perforated bottoms of the filterer itself. It
then falls through the perforated bottom or bottoms (as the caso may
be) into a receptacle for the same, which I call the receiver, from
whence it can be drawn off at pleasure by a tap or otherwise. A com-
munication with the receiver for the purpose of cleansing or otherwise
is afforded by a hole or aperture in the outer bottom of the filterer,
which may be stopped by a bung or any other means which may be
preferred. The filterer may be constructed to filter any quantity of
water, however large, and that with far greater rapidity and perfection
than can any filtering vessel of any kind in present use.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Squier Cheavin in the Great Seal Patent Office on
the 2nd June 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
SQUIER CHEAVIN, of Spalding, in the County of Lincoln, Plumber and
Glazier, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of December, One thou-
sand eight hundred and fifty-three, in the seventeenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Squier Cheavin, my executors, administrators, and assigns,
Her especial license that I, the said Squier Cheavin, my executors,
administrators, and assigns, or such others as I, the said Squier
Cheavin, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Chanuel Islands, and Isle of Man, an In-
vention of "A DOUBLE-ACTION OR BELT FILTERER," upon the condition
(amongst others) that I, the said Squier Cheavin, by an instrument
in writing under ny hand and seal, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same

page_text: was to be performed, and cause the same to bo filed in the Great
Scal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Squier Cheavin do hereby declaro
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 (that is to say) :-
:
My Invention of "A Double-action or Belt Filterer" has for its object
the construction of a filtering vessel which shall filter water and other
liquids with greater rapidity and perfection than the filtering vessels in
present use. Within the outer vessel, which may be of any required
shape, size, or material, are two or more perforated bottoms at any
required distance from each other, resting upon rims or rests fixed to
such outer vessel; also a cylinder of such a size as to admit of layers
of gravel, charcoal, and other filtering substances being put all round
between it and the sides of the outer vessel. The sides of this cylinder
aro perforated in order that the water may pass into and through such
layers of gravel or other filtering medium. The cylinder may be
attached to or rest upon the upper of the perforated bottoms before
referred to as resting upon the outer vessol. At the top or in the
interior of the cylinder may be placed a sponge or bag of felt or other
similar substance through which the water may pass beforo passing
through the holes of the cylinder into the layers of the gravel or other
filtering medium, so as to deprive the water of its greater impuritics
before it reaches the layers, but the layers are of themselves sufficient
for the purpose. Between the two perforated plates above referred to
are placed layers of gravel and other filtering substances, through which
the water after filtration through the filtering medium around the
cylinder descends into a receptacle for the same (which I designate the
receiver) at the bottom of the outer vessel, from whence it may be
drawn off by a tap or any other means; a communication with this
receiver for cleansing or any other purpose is afforded by a hole at the
bottom of the outer vessel, which may be stopped by a bung or any
other means which may be preferred. An air tube in connection with
the top of the mouth or bowl of the cylinder is attached to the outer

page_text: vessel, and being portable may be removed at pleasure. The accom-
panying Drawing shews the elevation, section, and plan of parts of a
double-action or belt filterer constructed and arranged according to my
Invention. 1 is the bowl or receptacle into which the water to be
filtered is poured. 2 is the bell top of the perforated cylinder holding!
the sponge or felt bag. 8 is the perforated cylinder, having a small
spaco (4) at the bottom not. perforated. 5 is the perforated bottom
attached to the cylinder; 6, the air pipe and blow tube; 7, the layers
of gravel or other filtering medium; 8, the rim or projections to receive
the perforated bottom; 9, the second or lower perforated bottom; 10,
the perforated bottom; 11, the receiver; 12, the 'tap; 18, the cleansing
hole.
The filter may be constructed of larger or smaller-dimensions
according to the purpose to which it is to be applied, but a filter of one
inch to the foot, as shown in the Drawing, is well adapted for ordinary
domestic purposes.
Having now described the nature of my said Invention and in what
manner the same is to be performed, I hereby declare that I do not
claim as my Invention the exclusive use of any of the parts of the above
filter when taken separately, but what I claim is, the filter constructed
and arranged as above described.
In witness whereof, I, the said Squier Cheavin, have hereunto
set my hand and seal, this Twenty-ninth day of May, One
- thousand eight hundred and fifty-four.
Signed, sealed, and delivered by the
above-named Squier Cheavin in
tlic presence of
SAM* EDWARDS,
SQUIER CHEAVIN. (LS.).
-Solicitor,
Spalding.