Improvements in the Construction of Tanks or Receptacles for, the Precipitation of Sewage, and for like purposes.
Year: 1893

page_text: Date of Application, 11th July, 1893
omplete Specification Left, 3rd May, 1894-Accepted, 16th June, 1894
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PROVISIONAL SPECIFICATION.
Improvements in the Construction of Tanks or Receptacles for, the
Precipitation of Sewage, and for like purposes.
I, EDWARD CHARLES IVES of Victoria Chambers, Saint Peter's Churchyard,
Derby in the County of Derby, Engineer and Contractor do hereby declare the
nature of this invention to be as follows:-
The object of my invention is to effect certain improvements in tanks or
receptacles for the precipitation of sewage or the like by chemical or other means
and for this purpose I construct circular, octagon, square, oblong or other form of
tank with vertical or slightly sloping sides, in iron, wood, concrete or other suitable
material each tank, no matter what surface shape it may have has a conical or
sloping bottom terminating in a sumph or in the case of an oblong tank I
divide the bottom of the tank up into two or more parts each part having a
separate sumph to each of which the conical part of the tank slopes for the
purpose of receiving the sludge or solid portion of the sewage and for more
readily drawing the sludge out of each tank or portion of tank by means of a
pipe or pipes, either by pumping, suction or syphoning without interfering with
the flow of the sewage or its precipitation.
I arrange that the sewage or other matter shall pass into the tank at or
about the level where the top of the conical bottom meets the bottom of the
ordinary sides of the tank and to let it in by means of a pipe or pipes in a
vertical direction directly over the sumph or sumphs or in the case of a
circular, square, octagon shaped tank at their centre: the mouth of this inlet
pipe has placed over it a cover connected to distributing arms radiating from
the centre of the pipe for the purpose of evenly distributing the sewage over
the whole area of the tank when running into the same and to ensure the same
rising uniformly to the overflow basin or sill placed near the top of the tank.
At or about the top of the tank I form overflow basins with radiating overflow
arms so spread out to assist the uniformly upward action of the sewage. The
overflow arms and basin are connected with an outlet to carry the effluent away.
In all cases in building the tanks the invert of the sewer is slightly above the
level of the overflow basin and arms.
I claim that by letting the sewage or the like into the tanks in the manner
described that no disturbance takes place that is likely to prevent the precipi-
tation of the sludge or solids into the bottom of the tank and that the whole
area above the distributing arms is available for the purpose of precipitation
and that no alterations would have to be made in the levels of the existing
sewers if these tanks were put down.
Dated this 10th day of July 1893
W. SWINDELL,
Agent for the Applicant.
COMPLETE SPECIFICATION.
0 Improvements in the Construction of Tanks or Receptacles for the
Precipitation of Sewage, and for like purposes.
I, EDWARD CHARLES IVES of Victoria Chambers, Saint Peter's Churchyard,
Derby in the County of Derby, Engineer and Contractor, 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 object of my invention is to make or effect certain improvements in tauks or

page_text: receptacles, for the precipitation of sewage and the like. I construct for the
purpose a circular, octagonal, square, oblong, or other form of tank, with vertical
or sloping sides in iron, wood, concrete or other suitable material.
In order that my invention may be the more readily understood, I have caused
to be annexed to this Specification a sheet of drawings the figures and letters of
reference marked upon which will be hereafter referred to.
Figure 1 represents a vertical section of my tank shewing the working interior.
Figure 2 is a plan of same looking down upon it. The drawings illustrate a
cylindrical tank the outer casing ▲ being of metal, brick, wood or any other
suitable material.
This tank or cylinder A tapers at its lower extremity, and is formed of an
inverted truncated cone shape and finally terminates in a bulb or sumph B, or
simply terminates in an inverted cone without the sumph B, or in the case of an
oblong tank I divide the bottom of the tank into two or more parts, each part
having a separate sumph, to each of which the conical part of the tank slopes for
the purpose of receiving the sludge, or solid portion of the sewage. The sludge
suction pipe is shewn by letter C and it will be seen terminates in a cone shaped
end D in order that an increased suction may be obtained when pumping or
syphoning out the precipitated sludge or sewage from the bottom of the cone or
sumph B without interfering with the flow of the sewage or its precipitation.
I arrange that the sewage or other matter shall pass into the tank A at or about
the level, where the top of the inverted conical bottom meets the bottom of the
ordinary sides of the tank A at G Figure 1. aud to let it in by means of a pipe F
or pipes, in a vertical direction directly over the sumph B or sumphs, or in the
-case of a circular, square, octagonal shaped tank at their centre.
The mouth of this inlet pipe F has placed over it a cover G¹ connected to
distributing arms H of metal or any other suitable material, to distribute the
sewage over the whole surface of the tank when running into the same and to
ensure the same rising uniformly to the overflow arms I or sill placed near the top
of the tank A.
At or about the top of the tank A. I form overflow arms I spread out to assist
the uniformly upward action of the sewage, the overflow arms are connected with
- an outlet K to carry the effluent away. In all cases in constructing these tanks
the invert of the sewer is slightly above the overflow basin and arms.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
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1. The improved construction of a precipitating tank having the sewage inlet at or
about the level of the meeting of the inverted cone shaped sumph and sides of the
said tank, the sewage being admitted in a vertical direction directly over the
sumph, distributing arms H for the purpose of more evenly distributing the sewage
over the whole area of the tank and radiating overflow arms I and outlet K
substantially as described and illustrated.
2. The cone shaped bottom to the sludge suction pipe substantially as and for
the purposes described and illustrated.
3. The whole substantially as and for the purposes described and illustrated.
Dated this 2nd day of May 1801
W. SWINDELL,
Agent for the Applicant.