Year: 1897

page_text: I, JOSEPH HOWARD, of Stone Ridge Farm, Disley, in the County of Chester,
Farmer, do hereby declare the nature of this invention to be as follows:-
This invention relates to the construction of an improved sess-pool for receiving
sewage from water closets and other sources and separating the liquid and the
more or less solid portions thereof.
The improved sess-pool consists of a closed tank into which the sewage is
received through a liquid-trapped inlet pipe, the more or less solid portions thereof
settling down towards the bottom thereof and the liquid rising until its level
reaches to about the bottom of the inlet opening.
At the opposite side of the tank is a syphoned overflow pipe, the inlet opening of
which is below the highest level of the liquid and the top of the syphon bend about
level with the bottom of the inlet opening so that as the level of the liquid rises it
runs down the overflow pipe into the drain or sewer by the outlet opening at the
bottom of the overflow pipe. An air pipe at a higher level is also provided
which comes into action as an additional overflow pipe if the syphon pipe should
become choked.
Between the inlet and outlet pipes the tank is or may be provided at about the
liquid level with a midfeather to prevent paper or other floating matter passing
The
directly to the overflow which would have a tendency to choke the same.
mouths of the overflow pipes may also be protected by grids or the like for the same
purpose.
Air pipes are also provided for ventilating the tank and the sewer or drain, and
a pump barrel is fixed in the tank with its suction opening near the bottom for
pumping out the more solid matters from the same as may be required, or a valve
or equivalent means may be employed for the same purpose, if the bottom of the
tank is placed above or on the level of the ground.

page_text: the same is to be performed to be particularly described and ascertained in and
by the following statement:-
This invention relates to the construction of an improved self acting and self
ventilating sewage tank or cess-pool for receiving sewage from waterclosets and
other sources, separating the liquid and the more or less solid portions thereof,
and preventing the entrance of sewer gas and noxious fumes from the drains into
dwelling houses and other buildings.
The construction of my improved sewage tank will be readily understood
on reference to the drawing hereunto annexed and the following explanation
thereof.
The drawing represents a sectional elevation of my improved sewage tank,
which consists principally of a tank a constructed of cast iron, brickwork, concrete,
or other suitable material, with a closed top of suitable strength (if underground)
to bear the passage of heavy loads over it; into this closed tank the sewage is
conveyed through a liquid trapped inlet pipe b, the more or less solid portions
thereof settling down towards the bottom thereof and the liquid rising until its
level reaches to about the bottom of the inlet opening c.
At the opposite side of the tank a is a syphoned overflow pipe d, the inlet
opening of which is below the highest level of the liquid, and the top of the syphon
bend about level with the bottom of the inlet opening c, so that as the level of the
liquid rises it runs down the overflow pipe d into the drain or sewer e by the out-
let opening fat the bottom of the overflow pipe.
This self acting syphon pipe carries off the top water from the tank a and
comes into action immediately the level of the liquid rises to the top of the syphon
bend, and this flow continues until the level falls below the mouth of the syphon
pipe d, this action continually taking place as often as the tank becomes filled to
the normal level.
There is also an additional overflow pipe 9 provided with its opening a
little above the ordinary level of the liquid to provide for any excessive
flush or storm water and assist the syphon pipe d to carry off the same to the
drain e.
Between the inlet and outlet pipes the tank is, or may be, provided at about the
liquid level with a midfeather h to prevent paper or other floating matter from
passing directly to the overflow, which would have a tendency to choke the
same; the mouths of the overflow pipes may also be protected by grids or the like
for the same purpose.
A ventilating shaft i is also provided for ventilating the tank a and conveying
away all gases and fumes; and an air pipe k is carried from the main drain e into
this shaft to carry off any gas which may accumulate in the drain; a pump barrel
is also fixed in the tank a with its suction opening near the bottom of the same
for pumping out the more solid matters at such intervals as may be required
into a liquid manure cart for conveyance onto the land or otherwise, and when
the pump m is not in use the top of the barrel may be closed by a blank
flange.
Instead of the pump a valve or equivalent means may be employed for the
same purpose if the bottom of the tank a be placed above, or on a level with, the
ground.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what
I claim is
The combination with a closed metal or other sewage tank or cess-pool of a
liquid trapped inlet pipe, a syphoned outlet pipe for the liquid sewage leading
into the main drain, an overflow pipe with its mouth above the ordinary level for
carrying off excessive flush, a shaft for ventilating the tank, an air pipe leading

page_text: from the main sewer into the said shaft, and a pump or equivalent device for
removing the more solid portions of the sewage, substantially as hereinbefore
described and illustrated by the drawing annexed.
Dated this 24th day of March 1808
GEO. DAVIES & SON,
Agents for the Applicant, 4, St. Ann's Square, Manchester.