Improvements in or connected with the Treatment of Sewer Air or other Obnoxious Gases and also Sewage Matter during Transit in Drains.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with the Treatment of Sewer Air or
other Obnoxious Gases and also Sewage Matter during Transit in
Drains.
I, ROBERT HARRIS REEVES, of Cedardale, Putney Bridge Road, Putney, London,
Engineer, do hereby declare the nature of this invention to be as follows:-
<<
This invention relates to improvements in or connected with the treatment of
sewer air or other obnoxious gases and also sewage matter during transit in drains.
For the purpose of my invention, I fit say a couple of vessels in an air shaft,
man-hole or the like of a sewage or foul water drain, one vessel to contain lime,
lime water, permanganate of potash or other agent such as what I. term
"
thamisin i.e. a mixture of lime, gas tar thinned down to a liquid, and the
other vessel an acid or acidulated liquid (sulphuric) which is by a sensitive tap
allowed to fall in drips into a saucer and so become associated with the water of
the lime or other agent from the first named vessel, this issuing under pressure
into the same saucer for admixture and overflow from a spout or lip, or from a
series of such.
The two vessels stand upon a shelf or rack, well up the man-hole shaft, and the
overflow falls onto a series of pots (porous or other) and then trickles down from
them.
.
The water supply under the ordinary service mains is from branches, one of
which is connected with a deep siphon, the legs of which are jointed up and pro-
vided with a sludge cap for clearing the, bend of sediment. The heads of both
siphon legs have a tap or valve, one self acting to automatically shut against escape
of effluvia into the main when the supply is reduced or entirely shut off, the pro-
cess only being needed during certain hours in certain districts.
Another branch pipe terminates in a needle hole nozzle or a series of such and
so arranged that the jet or jets by impinging against curved plates or discs become
broken up into fine spray of mist or dew like form which from its floating yet
falling tendency acts as a cloud and commingles with the vapour thrown off from
the chemical body while agitated in the saucer and during the trickling down
and falling from the pots against which a portion of the water spray acts to keep
them cool, there being a certain amount of heat generated when the lime and
acid mixes.
The vessels are so placed as to be within easy reach of an attendant by removing
the man-hole or top covers for recharging the vessels as occasions require.
-The cloud condenses the-foul gases and finally is absorbed by the water of the
drain and as it flows along, the rolling of the sewage or drain water by impedi-
ments in the pipes such as the joints, and of solid bodies which fall or otherwise

page_text: get there, the water and its debris become impregnated and changed in its character
as to be rendered free from smell of sewage.
Dated this 14th day of April 1897
Improvements in or connected with the Treatment of Sewer Air or
other Obnoxious Gases and also Sewage Matter during Transit in
.Drains.
I, ROBERT HARRIS REEVES, of Cedardale, Putney Bridge Road, Putney, London,
Engineer, 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 or connected with the treatment of
sewer air or other obnoxious gases and also sewage matter during transit in sewer
channels or drains.
For the purpose of my invention and as I show in the annexed drawings in
which Figure 1 is a sectional elevation of a man hole with the apparatus fitted in
position. Figure 2 is a sectional plan of Figure 1. Figure 3 is a side. sectional
elevation, I fit, say, a couple of vessels A, B, in an air shaft, man hole, or the like C
of a sewer or foul water drain.
The vessel A contains permanganate of potash or other agent such as what I
term "thamisin" i.e. a mixture of lime, gas tar previously mixed under pressure
and consolidated to a consistency of clay; or thinned down to a liquid, (as described
in the Specification of my prior Application No. 9558, dated 14th April 1897,) and
the other vessel B an acid or acidulated liquid (sulphuric) which is by a tap D
allowed to fall in drips into a hollow vessel E and so become associated with the
liquid "thamisin
or other agent from the first named vessel A, this issuing under
pressure or by its own gravity into the vessel E for admixture and overflows from
the spout or lip, or from a series of such.
"
The two vessels are fixed preferably in a recess well up in the man hole shaft C
as shown in Figures 1 and 3 and the overflow of the liquid at E falls on to a series
of pots F, porous or other, and then trickles down from them.
The water supply from the ordinary service main enters the man hole C at G
to which is connected a drop stop valve H and to this is connected a deep siphon,
the legs I, I, of which are jointed up and provided with a plug J for clearing
the bend of sediment.
The top of the second siphon leg I¹ has a flap or drop valve K which shuts auto-
matically the instant the pressure from the water main ceases, leaving a column of
water between valves H and K. This column of water at any pressure perfectly
seals the delivery pipe G against any air entering the main.
Another branch pipe L terminating with a tap M and needle hole nozzle or
a series of such is so arranged that the jet or jets of water by impinging against
curved plates or discs N become broken up into fine spray or mist or dew like
form which from its floating tendency acts as a cloud and commingles with. the
vapour thrown off from the chemical body whilst dripping and trickling down or
falling from the pots against which a portion of the water spray acts to keep them

page_text: cool, there being heat generated when the chemicals mix together. The cloud
condenses the foul gases and finally is absorbed by the sewage or water in the
sewer.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
1. The improvements herein described whereby chemicals are more thoroughly
mixed or amalgamated for the treatment of sewage or foul gases, as set forth.
2. The arrangement for the water supply whereby a perfect seal is obtained in
the supply of water from mains, as set forth.
3. The arrangement of a water outlet whereby the water is broken up in a mist
like form to amalgamate with the chemicals or otherwise.
4. The particular combination and arrangement of appliances for treating
sewage or obnoxious gases, as set forth and shown on the annexed drawings.
The 14th day of February 1898
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Robert Harris Reeves.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Robert Harris Reeves.