Improvements in Filters.
Year: 1899

page_text: Date of Application, 6th
6th May
1000
Complete Specification Left, 17th. Feb., 1900-Accepted; 28th Apr., 1900
Complete Specification Left, 17th. Feb., 1900-Accepted; 28th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in Filters.
ARTHUR WILLIAM COOPER, Engineer and Boilermaker, Britannia Engine
Works, Dock Street, Dundee, N.B., JAMES SIME GREIG, Engineer and Boilermaker,
Britannia Engine Works, Dock Street, Dundee, N.B., do hereby declare the
nature of this invention to be as follows:-
'
Filtering chambers are arranged with means of regulating the action or
movement of liquid to be treated. That is to say, in connection with filters
the volume of liquid withdrawn from same may be regulated by the volume
supplied without exposing the filtering medium or causing irregular action.
The general construction would be in the form of vertical chambers or chamber
with permeable divisions between which the filtering medium would be arranged.
A displacer chamber being fitted upon top or contiguous so that automatic valve
connections would be acted upon with as little friction as possible. Preferably
the displacer chamber would be above and the automatic valve beneath, so that,
the displacer and valve would be readily coupled by suitable links; pneumatic
tube, or hydraulic syphon as the situation might require, to insure instant action
adjusting the outflow of liquids from filter, so that the volume held would always
remain within the, limits as arranged. This filter may be used for liquids
formed by condensation of vapour, or other liquids charged with impurities
where such would in any way damage or destroy, the constant action of filter
should wet and dry states intervene or scour, occur.
2001
JAMES SIME GREIG.
ARTHUR WILLIAM COOPER.
Improvements in Filters.
ARTHUR WILLIAM COOPER, Engineer and Boilermaker, Britannia Engine
Works, Dock Street, Dundee, N.B., James Sime GreiG, Engineer and Boilermaker,
Britannia Engine Works, Dock Street, Dundee, N.B., do hereby declare the
nature of this invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
This invention relates to improvements in filters for liquids the object being
to provide suitable chambers having automatic regulation to properly use the
whole surface of the filtering medium. In order that this invention may be
clearly understood we append two sheets of drawings, the same distinctive letters
being used as far as possible to denote the same parts.
Figures 1, 2 & 3, Sheet 1 show single filter with float and regulating valve

page_text: Figures 1, 2, 3, Sheet 2 shows multiple filter with bye pass pipes and one float
chamber. Figure 2 Sheet 2 shows section of filter compartments and suction
pipe connection from beneath filtering medium. In carrying out this inven-
tion; liquid. flows into float chamber A and passes through wire sieve into
filtering chamber B, seeks through filtering medium C and passes off by outlet
pipe D, the volume passing out being regulated by valve E which is adjusted by
float in chamber A, the connection being made between float and valve by
suitable link work, the effect of this regulation of the outflow by the inflow
insures, that at all times the filtering surface will be fully made use of, as
otherwise the liquid might be withdrawn and only a small surface be active,
which if a granular filtering medium were in use holes might be rubbed through.
Should the liquid in float chamber A fall to a certain point, the float will then
shut the outlet from filter chamber entirely. The filtering medium C may be
granular or fibrous as deemed most efficient to deal with the liquid under treat-
ment, a fine wire sieve being fixed underneath at H and another placed above'
the filtering medium J to protect same and cause equal distribution as far as
possible. To get the full amount of use from our filters we connect the outflow
valve to the suction side of a pump which keeps a continual suction underneath
filtering medium. An indicating gauge upon suction side of filter shows atten-
dant when cleaning is required. In Sheet 2 Figures 1, 2, & 3, multiple filtering
chambers are shown with shallow divisions arranged contiguous to float chamber
having junction pipes F, F, and valves K, K, so. that many or single chambers
may be worked as desired. When a greater number of chambers are desired
the bends F, F, may be made with many branches so that as many chambers B,
may be coupled as required. Water from chamber A flows through valves K
into chamber B, then through sieve J and filtering medium C; then through
sieve H and by convenient ports to eduction pipe D. The filtering medium C
is replaced between sieves J and H as often as found desirable.
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. In filters the automatic regulation of liquid passing through by float and
valve substantially as described and shown by drawings.
2. In filters the arrangement of shallow chambers to suit fibrous or granular
filtering medium as described and shown.
3. In filters the general construction substantially as described and shown.
Dated this 15th day of February 1900.
ARTHUR WILLIAM COOPER.
JAMES SIME GREIG.