Rain Water Filter.
Year: 1897

page_text: Date of Application, 5th May, 1897
Complete Specification Left, 2nd Feb., 1898-Accepted, 5th Mar., 1898
Rain Water Filter.
EDWARD HEBDON, Civil and Sanitary Engineer, Chapman Villa, South
Queensferry, N.B., do hereby declare the nature of this invention to be as
follows:-
The invention relates to the construction of filters for rain water, of stoneware
or other suitable material for connecting to rain water drains in their course from
down pipes to storage tanks.
Fig. I is a plan of the filter shewing how different arrangements of the inlets
and outlets can be made to suit different circumstances as to position of drains
and storage tanks.
Fig. 1 is a cross section of the filter shewing principle of upward filtration, so
that any solids intercepted by the filter do not foul the filtering material, but
settle to the bottom of the chamber A, provided for sediment. The division plate
B is formed in the material of which the filter is made as also is the ledge C upon
which the grid or grating D is supported. The grids or gratings D and E may
be perforated stoneware plates or cast iron gratings galvanized.
The filtering material may be of gravel, sand, or other suitable material, of
varying degrees of fineness suitable for the purpose. The lid and grids or gratings
being movable the filter can at any time be thoroughly cleaned out and the filter-
ing material washed or renewed as circumstances require.
The size of the filter can be modified according to requirements so as to be
suitable for different areas of collecting surfaces.
EDWARD HEBDON, Civil and Sanitary Engineer, Chapman Villa, S. Queens-
ferry, 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:-
The invention relates to the construction of filters for rain water of stoneware
or other suitable material for connecting to rain water drains in their course from
down pipe to storage tanks.
Fig. I (drawing left with Provisional Specification) is a plan of the filter shew-

page_text: ing how different arrangements of the inlets and outlets can be made to suit
different circumstances as to position of drains and storage tanks.
Fig. II is a cross section of the filter shewing principle of upward filtration, s0
that any solids intercepted by the filter do not foul the filtering material, but
settle to the bottom of the chamber "A" provided for sediment. The division plate
"B" is formed in the material of which the filter is made as also is the ledge C, upon
which the grid or grating D is supported. The grids or gratings D, and E, may
be perforated stoneware plates or cast iron gratings galvanized.
The filtering material may be of gravel, sand, coke breeze, or other suitable
material of varying degrees of fineness suitable for the purpose. The lid and grids
or gratings being movable the filter can at any time be thoroughly cleaned out,
and the filtering material washed or renewed as circumstances require.
The size of the filter can be modified according to requirements so as to be suit-
able for different areas of collecting surfaces.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
1 The construction of a filter suitable for inserting in the line of conduit from
collecting area to storage tanks, capable of being fixed by unskilled labour.
2 The provision of a settling chamber for intercepting any solids previous to the
water passing over or through the filtering material thereby preventing the fouling
of such filtering material.
3 The accessibility of the whole interior, for the purpose of perodical cleaning.