Exhaust Scrubber for Petroleum and other Motors having Offensive. or Injurious Exhaust.
Year: 1893

page_text: Date of Application, 10th Apr., 1893-Accepted, 13th May, 1893
COMPLETE SPECIFICATION.
Exhaust Scrubber for Petroleum and other Motors having Offensive.
or Injurious Exhaust.
I, JOHN WALKER, of 111 Osborne Road Jesmond of the City and County of
Newcastle upon Tyne Engineer and Shipbuilder 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 render inocuous inoffensive and inodorous the
exhaust gases or products of combustion from oil engines and other similar motors.
I accomplish this in the following manner.
The exhaust pipe or pipes from the motor are led at a suitable point into a tank
or vessel of any suitable shape and proportions. The orifice of this exhaust pipe
may be led somewhat towards the centre of this tank, having at its end, a suitable
bell shape--or otherwise.
"
At or near the upward part of the tank there is led into it a water or injection
pipe having a convenient "
rose at its entrance. Or it may be led into a com--
partment of the tank having numerous holes or perforations in its bottom or sides
or it may be of wire gauze.
At the bottom of the tank a layer of water is allowed to accumulate of a sufficient
depth and the unabsorbed portions of the exhaust gases pass off from the tank or
vessel by first passing through this water.
The exhaust gases pass or are led off from the tank in this way:-The orifice of
the discharge pipe is carried a certain distance above the level of the bottom.
of the tank and around and over this there is a cap, cowl or inverted basin
so that the exhaust fumes and gases are "washed" by passing through this water-
as the gas in gas works passes through the seal or water lute-by entering the
basin by its lower edge and rising through the water in this annular or other shaped
space to the top of the discharge orifice. They are then led off in any required
direction by the discharge pipe; or this discharge pipe may be a pipe passing out
of the side of the tank first dipping down in the tank any required depth and having
an adequate opening at its lower termination.
The amount of seal, lute and consequently of back pressure in the tank will be
determined by the discharge orifice of the discharge pipe being placed at any desired
height above the level of the lower edge of the inverted basin or cap.
A sludge. pipe and cock may be used to carry off surcharged or deteriorated
water, and if desired a water gauge or gauge cocks may be affixed to the outside of
the tank.
There is a cock on the discharge pipe to regulate the discharge of exhaust gases,
which will also determine the back pressure in the tank. There may also be shelves
or trays in the tank to more fully expose the exhaust gases to the action of the spray
The water itself may be ordinary fresh water or it may be impregnated
with lime or other chemical substance.
or water.
There may be two or more of these tanks acting in a series so that the exhaust
gases from the first tank in the series may pass into the second and so on to
the last.
I shall now describe the drawing.
Fig. 1 is a vertical section through the tank.
Fig. 2 is a horizontal section through the same.
In which a represents the tank.

page_text: the chamber with perforated openings,
the perforated bottom of the same,
e the discharge pipe leading off from the tank,
f the cap or inverted basin for the same,
У the sludge or blow off pipe and
the water gauge.
Thus the injection or condensing water entering through the pipe c into the
chamber d and becoming minutely subdivided by the perforated plate d' in its
descent, and being exposed to the exhaust gases entering through pipe b absorbs or
takes into solution those gases or fumes capable of being absorbed by water together
with the odorous fumes or vapours carried along with them.
The incorporation of the gases with the water is aided by the falling water, and
these exhaust gases, impinging on the layer of water at the bottom of the tank,
and the gases pressing on the surface of this water by the induced back pressure
pass the lower lip of the cap or inverted basin f; and bubbling up through the
water contained therin become still further washed and purified, leaving the
uncondensable gases to pass or escape from the tank a through the orifice and
discharge pipe e purified and deodorized and otherwise rendered inoffensive.
The back pressure produced by the head of water of the lute or seal together
with the temprature of the injection water contribute somewhat to the condensation
and absorption of the offensive gases or products of combustion.
The whole may be of any desired materials shape design or pattern.
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.―
1st. A tank with water spray to wash and deodorize the exhaust gases from oil
and other motors.
2nd. The admixture of lime or other ingredients to facilitate the washing and
deodorization.
3rd. The washing through the head of water or water lute and the back pressure
thus induced in the tank to facilitate the purification and deodorization.
4th. The whole arrangement or any parts therof substantially as described in the
Specification and drawing.
5th. The arrangement of these tanks in a series.
Dated this Eighth day of April 1893.