Im- PROVEMENTS IN PORTABLE & OTHER FILTERS
Year: 1861

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the County
of Middlesex, Engineer & Patent Agent, for the Invention of "Im-
PROVEMENTS IN PORTABLE & OTHER FILTERS." -A communication from
abroad by Jules Pacome, Alfred Havard, and Jean Baptiste Bourgoise,
of 29, Boulevart St. Martin. Paris. Mechanicians.
PROVISIONAL SPECIFICATION left by the said William Clark at the
Office of the Commissioners of Patents, with his Petition, on the 9th
November 1861.
1, WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex,
Engineer & Patent Agent, do hereby declare the nature of the said Invention
for IMPROVEMENTS IN PORTABLE & OTHER FILTERS," to be as follows:-
This Invention relates, first, to a portable water filtering apparatus, appli-
cable for army service, and also for domestie purposes. It is formed of
two reservoirs of cloth, coated with india-rubber; separated by a filtering sub-
stance contained between two metallic plates pierced with holes. This simple
arrangement renders the apparatus easy of transportation, as the two reservoirs
being flexible may be folded so as to occupy but little space. The apparatus
is represented in the annexed Drawings, where Fig. 1 shows a central vertical
section of the apparatus complete; Fig. 2, a side elevation of the same;
Fig. 3 shows an elevation of the case; Fig. 4 shows a plan of the same;
Fig. 5 shows an elevation of the apparatus without the case; Fig. 6, a vessel
or double case serving to enclose the whole apparatus, and also to contain the

page_text: filtered water; Fig. 7 shows the method of compressing the reservoir of
filtered water for cleaning the filtering matter; Fig. 8 shows a central vertical
section of the apparatus reversed, folded together, and placed in the vessel;
Fig. 9 shows a filtering apparatus, furnished with a pump & accessory parts
for feeding it; in this Figure the case is placed on a tripod; Fig. 10 shows
plan & elevation of a camp kettle, furnished with a small filtering apparatus,
which is represented full size at Fig. 11. The apparatus is worked by suction;
it is placed in the can Fig. 10, which is filled with water, and by means of
the india-rubber tube A, the water is sucked up into the mouth, being first
caused to traverse the filtering material B. When the filtering material
becomes clogged with dirt, it is sufficient to simply blow through the suction
tube, which causes the water contained in said tube to traverse the filtering
material, and thereby clean it. The same letters of reference indicate the
same parts seen in the different Figures.
a cylindrical reservoir, containing the water to be filtered; it is made of cloth
coated with india-rubber, or it may be other flexible impervious material; b,
second cylindrical reservoir, containing the filtered water, made of the same
material as the above, but having a metal bottom; c, filtering material of wool
or other substance, placed between the two metal plates d, d, which are pierced
with holes; e, can or case, in which the apparatus is placed, having three
small brackets f, J, f, in the interior, on which are placed projections g, g, on
the rim surrounding the filter; h, can or pail, in which the apparatus is placed
for transportation; i, metal rim for strengthening the upper edge of reservoir
a; j, handle rivetted to the rim i, hooking to a support h, for carrying the
reservoir. This support is formed of bars sliding one within the other, so as
to occupy but little space; l, service cock; m, screw union; n, metal ring
surrounding the filter; o, air tube placing reservoirs b in communication with
the atmosphere; p, p, p, tripod, on which the filter may be placed instead of
case e; q, q, ordinary pump. The filtration of the water is effected in this
apparatus as in ordinary, it being sufficient to place the water in the reser-
voir, when it traverses the filtering matter, and passes, when filtered, into
lower reservoir b. The filter may be readily cleaned, for which purpose I
place in that part of the cock which is fixed to the filter a valve, which opens
and closes automatically by screwing or unscrewing the cock, so that on
removing the latter the valve will close the opening left; the bottom of the
reservoir is then pressed, which causes the water to pass through the filtering
matter, and thus clean it. By suitably modifying the above-described appa-
ratus of this Invention, they may be adapted for large establishments, such as
paper mills, dye works, or for other purposes, or, if placed in the basement of

page_text: a house, in connection with the water mains, they may be made to supply
water to the several floors.
These modifications consist chiefly in substituting galvanized iron for the
india-rubber fabric forming the cases of the before-described apparatus, on
the periphery of which are mounted the several cocks for the inlet & outlet
of the water, and also for cleaning and emptying the apparatus, in the interior
of which two or more filters may be superposed one above the other. These
modifications are represented in the Drawing annexed, in which Fig. 12
is the central vertical section of a filter working under pressure from the
public water mains. Fig. 13 shows a central vertical section of a filtering
apparatus for large establishments; Fig. 14 represents a section of a filtering
apparatus adapted for ordinary fountains; Fig. 15 shows a section of a funnel-
shaped filtering apparatus with a fixed filter; c, filtering apparatus of gal-
vanized sheet iron; d, filter fixed in the interior of the apparatus; E, inlet
tube, furnished with a cock F; G, cleansing tube with a cock H; I, exit
pipe, having a cock J; K, cock for the admission of air; I, emptying cock;
M, two-way cock, one for the filtered water, the other for cleaning out the
filter; by this means a quarter of a turn suffices to enable the apparatus to
supply filtered water, or be in readiness for cleaning. The cleaning is effected
by means of a counter current of water passing through the filter D and out
at tube N; 0, receiver, containing the unfiltered water, and having a
screw thread for the purpose of connecting or disconnecting it from filter P,
or it may be effected in any other suitable manner. The cleansing is effected
by blowing strongly through the end Q of the funnel filter, Fig. 15.
small filters may also be applied in the interior of travelling bottles.
may be made of any suitable form, and either of metal or india-rubber cloth,
india-rubber simply, or of other material, and are cleaned in the same manner
as ordinary pocket filters.
The
They
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Clark in the Great Seal Patent Office on the 7th
May 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLARK, of 53, Chancery Lane, in the County of Middlesex. Engineer and
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of November, in the year of our Lord

page_text: 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 William Clark, my Her special licence, that I, the said William Clark,
my executors, administrators, and assigns, or such others as I, the said
William Clark, 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 Ire-
land, the Channel Islands, and Isle of Man, an Invention for "IMPROVE.
MENTS IN PORTABLE AND OTHER FILTERS," a communication from abroad by Jules
Pacome, Alfred Havard, & Jean Baptiste Bourgoise, of 29, Boulevart St.
Martin, Paris, Mechanicians, upon the condition (amongst others) that I,
the said William Clark, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should par-
ticularly 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 Clark, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, reference being had to the Sheet of Drawings hereunto annexed,
and to the letters and figures marked thereon (that is to say) :—
This Invention relates, first, to a portable water filtering apparatus, appli-
cable for army service, and also for domestic purposes; it is formed of two
reservoirs of cloth, coated with india-rubber, separated by a filtering substance
contained between two metallic plates pierced with holes. This simple
arrangement renders the apparatus easy of transportation, as the two reser-
voirs, being flexible, may be folded so as to occupy but little space.
The apparatus is represented in the annexed Drawing, where Fig. 1 shows
a central vertical section of the apparatus complete; Fig. 2 a side elevation
of the same; Fig. 3 shows an elevation of the case; Fig. 4 shows a plan of
the same; Fig. 5 shows an elevation of the apparatus without a case; Fig. 6
shows the vessel or double case serving to enclose the whole apparatus, and
also to contain the filtered water; Fig. 7 shows the method of compressing
the reservoir of filtered water for cleaning the filtering matters; Fig. 8 shows
a central vertical section of the apparatus reversed, folded together, and placed
in the vessel; Fig. 9 shows a filtering apparatus furnished with a pump and
accessory parts for feeding it, in this Figure the case is placed on a tripod;

page_text: Fig. 10 shows plan and elevation of a camp kettle furnished with a small
filtering apparatus, which is represented full size at Fig. 11. This apparatus
is worked by suction, it is placed in the can, Fig. 10, which is filled with water,
and by means of the india-rubber tube A, the water is sucked up into the
mouth, being first caused to traverse the filtering material B. When the
filtering material becomes clogged with dirt, it is sufficient to simply blow
through the suction tube, which causes the water contained in said tube to
traverse the filtering material, and thereby clean it. The same letters represent
the same parts seen in different positions.
a, cylindrical reservoir containing the water to be filtered, of cloth coated
with india-rubber or other flexible impervious material; b, second cylindrical
reservoir containing the filtered water, made of the same material as the above,
but having a metal bottom; c, filtering material of wool or other substance
placed between the metal plates d, d, which are pierced with holes; e, can or
case in which the apparatus is placed, having three small brackets f, f, in the
interior, on which are placed projections g, g, on the rim surrounding the filter;
h, can or pail in which the apparatus is placed for transportation; i, metal rim
for strengthening the upper edge of reservoir a; j, handle rivetted to the
rim i, hooking on a support for carrying the reservoir; this support kis
formed of bars sliding one within the other, so as to occupy but little space;
1, service cock; m, screw union; n, metal ring surrounding the filter; o, air
tube, placing reservoir bin communication with the atmosphere; p, p, p,
tripod on which the filter may be placed instead of case e; q, q, ordinary pump.
The filtration of the water is effected in this apparatus as in ordinary. The
water being placed in the reservoir, when it traverses the filtering matter and
passes when filtered into lower reservoir b. The filter may be readily cleaned,
for which purpose I place in that part of the cock which is fixed to the filter,
a valve which opens and closes automatically by screwing or unscrewing the
cock, so that on removing the latter, the valve will close the opening left; the
bottom of the lower reservoir is then pressed, which causes the water to pass
through the filtering matter, and thus clean it. By suitably modifying the
above described apparatus of this Invention, they may be adapted for
large establishments, such as in paper mills, dyeworks, and for other pur-
poses, or if placed in the basement of a house in connection with the water
mains, they may be made to supply water to the several floors.
These
modifications consist chiefly in substituting galvanized iron for the india-rubber
fabric forming the case of the before described apparatus, on the periphery of
which are mounted several cocks for the inlet and outlet of the water, and
also for cleaning and emptying the apparatus, in the interior of which two or

page_text: more filters may be superposed one above the other. These modifications are
represented in the Drawings annexed, in which Fig. 12 is a central vertical
section of a filtering apparatus working under pressure from the public water
mains; Fig. 13 shows a central vertical section of a filtering apparatus for
large establishments; Fig. 14 represents a section of a filtering apparatus
adapted for ordinary fountains; Fig. 15 shows a section of a funnel shaped
filtering apparatus with a fixed filter. C. filtering apparatus of galvanized
sheet iron; D, filter fixed in the interior of the apparatus; E, inlet tube
furnished with a cock F; G, cleaning tube with a cock H; I, exit pipe
having a cock J; K, cock for the admission of air; I, emptying cock; M,
two-way cock, one for the filtered water, the other for cleaning out the filter;
by this means a quarter of a turn suffices to enable the apparatus to supply
filtered water or be in readiness for cleaning. The cleaning is effected by
means of the counter-current of water passing through the filter D, and out of
tube N O, receiver containing the unfiltered water, having a screw for the
purpose of connecting or disconnecting it from filter P, or it may be effected
in other suitable manner. The cleansing is effected by blowing strongly
through the end Q of the funnel filter Fig. 15. The small filters may also
be applied in the interior of travelling bottles; they may be made of any
suitable form, and either of metal or india-rubber cloth, india-rubber simply,
or of other material, and are cleaned in the same manner as ordinary pocket
filters.
Having described the nature of this Invention and the manner of performing
the same, I declare that what I claim as the Invention to be protected by the
herein-before in part recited Letters Patent, is, the several improved arrange-
ments of filters, herein described and represented, as and for the purposes
described.
In witness whereof I, the said William Clark, have hereunto set my hand
and seal, this Seventh day of May, in the year of our Lord One thou-
sand eight hundred and sixty-two.
Witness,
JAMES DAISH,
53, Chancery Lane, London.
W. CLARK.
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