Improvements in Filtering Plant for the Purification of Water or other Fluids.
Year: 1894

page_text: Date of Application, 18th Jan., 1894
Complete Specification Left, 19th Nov., 1894-Accepted, 5th Jan.,
1895
1.4
PROVISIONAL SPECIFICATION.
Improvements in Filtering Plant for the Purification of Water
or other Fluids.
We BENJAMIN GREEN MARTIN, of 24, Sullivan's Quay, Cork, Engineer and
MICHAEL JOSEPH M'MULLIN, B.E. of 4, Montenotte, Cork, Ireland, City
Engineer, do hereby declare the nature of this invention to be as follows:-
Our invention relates to improvements in filtering plant for the purification of
water or other fluids and consists in providing a closed metal or other véssel or
vessels having at each lower end, an orifice, fitted with a valve-chest, or cock in
connection with a pipe, branching and leading thereto from the service main from
the reservoir or otherwise, such pipe having at its junction end with the main, a
secondary valve-chest or cock.
Immediately above the orifice in the vessel or vessels aforesaid is fitted a grating,
resting upon suitable supports secured to the side or sides of each vessel, which
grating carries a platform of perforated tiles or other suitable perforated material,
on which is laid the filtering medium. Upon the upper end of each closed vessel,
is an orifice which also is fitted with a valve-chest or cock in connection with a pipe
leading or branching off, to the service main, at the junction of which, one with the
other, is fitted a secondary valve-chest or cock.
The service pipe, between the said secondary valve chests or cocks, is continuous,
forming a "bye pass" but is furnished with a valve-chest or cock, which, when
closed and the secondary and other valve-chests or cocks are opened allows the
water to pass on to the filter vessel or vessels, circulating upward through the
filtering medium, and thence through the orifice in the top of the vessel or vessels,
or to the service main.
The vessels having fitted to each suitable doors or manholes for the purpose of
cleansing, renewing the filtering medium, repairing, or the like, and each vessel can
be isolated, by shutting its respective valves or cocks. The filtering medium can
be cleansed without removing same from the casing.
Suitable test-cocks are provided to each filter, for the purpose of ascertaining
the condition of the filtered water at any time, and the speed of the process of
filtering can be increased or diminished by regulating the outlet valves, on the top
of the filter.
Dated this 18th day of January 1894.
HUGHES, SON & Co.,
38, Chancery Lane, W.C., Agents.
Improvements in Filtering Plant for the Purification of Water
or other Fluids.
We BENJAMIN GREEN MARTIN, of 24 Sullivan's Quay, Cork, Engineer and
MICHAEL JOSEPH M'MULLIN, of 4 Montenotte, Cork, Ireland, City Engineer,
do hereby declare the nature of this invention and in what manner the same is to
rice 8d.1
.

page_text: be performed, to be particularly described and ascertained in and by the following
statement:-
Our invention relates to improvements in filtering plant-for the purification-of
water or other fluids and consists in providing a closed metal or other vessel or
vessels each having at its lower end an orifice (fitted with a valve chest or cock) in
connection with a pipe, branching and leading thereto from the service main from
the reservoir or otherwise, such pipe having at its junction end with the main, &
secondary valve chest or cock.
Immediately above the orifice in each vessel aforesaid, is fitted a grating, resting
upon suitable supports secured to the side or sides of the vessel, which grating
carries a platform of perforated tiles or other suitable perforated material, such as
for instance, iron or other metal plates, enamelled or otherwise, on which is laid
the filtering medium.
At the upper end of each closed vessel is an orifice which is also fitted with a
valve chest or cock in connection with a pipe leading or branching off to the
service main, at the junction of which, one with the other, is fitted a secondary
valve chest or cock.
The service pipe, between the said secondary valve chests or cocks, is continuous,
forming a "bye-pass," but is furnished with a valve chest or cock, which when
closed and the secondary and other valve chests or cocks are opened, allows the
water to pass onto the filter vessel or vessels, circulating upward through the
filtering medium, and thence through the orifice in the top of the vessel or vessels
or to the service main.
And in order that this our invention may be fully understood, we have appended
hereto drawings illustrative of the same, upon which in each of the figures, similar
letters of reference indicate like parts of the apparatus.
Fig. 1 shews our improved filtering plant in side elevational view, partly in
section.
Fig. 2 is a plan of the apparatus, and
Fig. 3 shews in plan view, a portion of the perforated plate or platform before
mentioned.
a represents the closed metal or other vessel aforesaid, having at its lower end a
water inlet from the service main from reservoir controlled by valve in valve chest b.
c is the secondary valve chest at junction with the main. d is the perforated enamelled
iron or other plate or platform carried upon brackets or supports e secured to the
side or sides of the vessel a. Upon this perforated platform d we place our filtering
medium which may consist conveniently of one foot of gravel, one foot of sand,
and one foot of "pumexlena," which latter is comprised of prepared pumice stone,
washed sand, & washed gravel, in layers. In the drawings this filtering medium is
marked f.
To ensure the water as it rises in the filtering plant, being conveyed as much
as possible into the centre of the filtering material, we have a spray-plate g (see
particularly Fig. 1) fitted internally around the vessel a at a suitable and con-
venient distance above the perforated plate d. h is the filtered water outlet at top
of the vessel a aforesaid which is controlled by valve in valve chest i. k is the
pipe branching off or leading therefrom to the service main.
The unfiltered water from main enters the vessel a through valve chest b and is
forced upwards through the perforated plate d into the filtering material or
medium through which it percolates and passes onwards through outlet h and
valve chest i at the top of the vessel to the service main.
Suitable man-holes and doors are fitted to the vessels to allow of cleansing,
renewing the filtering medium, repairing or the like, and each vessel is capable of
being isolated by shutting its respective valves and cocks. The filtering medium
may be cleansed without removing same from the casing.
Suitable test cocks (not shewn in the drawings) may be provided to each filter
for the purpose of ascertaining the condition of the filtered water at any time, and

page_text: the speed of the process of filtering can be increased or diminished by regulating
the inlet and outlet valves on the side and top of the filter.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :—
1. The improvements in filtering plant for the purification of water or other
fluids, substantially as hereinbefore described and illustrated in the accompanying
drawings.
2. In filtering plant for the purification of water or other fluids, the closed
vessel a having a perforated platform or grating d therein, carrying the filtering
medium, and having outlet and inlet orifices respectively at top and bottom of
the vessel controlled by suitable valves or cocks; all constructed, arranged, and
operating, substantially as herein before described and shewn.
Dated this 10th day of November 1894.
HUGHES, SON & Co.,
38, Chancery Lane, London, Agents for the Applicants.