Improvements in and relating to the Treatment of the Discharge Gases from Gas Engine Cylinders.
Year: 1891

page_text: Date of Application, 22nd Apr., 1891
Complete Specification Left, 21st Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Treatment of the Discharge
Gases from Gas Engine Cylinders.
I, WILLIAM KEY, of Eildon Villas, Mount Florida, Renfrewshire, Gas
Engineer, do hereby declare the nature of my invention to be as follows:-
This invention has reference to and comprises a new or improved mode and
means of, and arrangement and combination of apparatus or appliances for treating
the gases or products of combustion discharged from gas engine cylinders, so as to
trap and purify these of carbonic acid, sulphur, or other impurities, and at the
same time give a silent or noiseless exhaust from the cylinders of such engines.
.
The improvements consist in leading the discharged gases from the exhaust ports
of the cylinders of gas engines by pipes preferably first through one, two, or more
of the usual metallic exhaust boxes or hollow chambers and then taking them by
a slightly inclined pipe to and passing them through a new or improved gas
purifying and noise silencing vessel, tank, chamber or chambers. This new vessel
would preferably be constructed of square or rectangular shape of stone, brickwork,
cement, or wood, and for a four nominal horse power gas engine might be two feet
long by three feet broad and two and one-half feet high, and be fitted with a
portable or removable lid or cover on top, of stone or wood. A series of baffle
bricks, stones, or projections would be built or fitted with open interstices or spaces
between them in the lower part of the interior of this vessel against which the
waste gases or products of combustion would first impinge and act to lessen their
noise. One, two, or more horizontal perforated grid blocks or sieves would be
fitted at distances apart across the chamber above the lower baffle blocks, and
preferably made of wood resting portably on projecting bricks from the walls of
the vessel. These perforated sieves would have filled over them layers of hydraulic
lime of a moist consistency, or equivalent chemical agents, to absorb carbonic acid,
sulphur, or other impurities from the waste gases passing through them. After
passing through these filtering or absorbing sieves the gases would pass out pre-
ferably by a fireclay pipe through the lid of the vessel, and then through the
building to the atmosphere or to a grating below the ground level, when it will be
found that they will be freed from all obnoxious vapours, and be perfectly silent
or noiseless in their discharge.
Any water or moisture deposited in the lower part of the gas purifying and noise
silencing vessel would be led off by a tap and pipe and discharged through an S or
other trap.
Dh 014 Al 1901
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in and relating to the Treatment of the Discharge
Gases from Gas Engine Cylinders.
I, WILLIAM KEY of Eildon Villas, Mount Florida, Renfrewshire, Gas
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, in writing, that is to say :—
This invention has reference to and comprises a new, or improved mode and
means of, and arrangement and combination of apparatus or appliances for treating
וג..

page_text: the gases or products of combustion discharged from gas engine cylinders, so as to
trap and purify these of carbonic acid, sulphur, or other impurities, and at the
same time give a silent or noiseless exhaust from the cylinders of such engines.
And in order that my said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, I have hereunto
appended an explanatory sheet of drawings in which the same reference letters are
used to indicate corresponding parts in all the figures where shown.
Figure 1 represents in external elevation one arrangement of the complete
appliances by which my improvements may be carried into practice. Figure 2
represents a side view of one construction of my new or improved gas engine
exhaust purifying vessel. And Figure 3 is a plan view corresponding to Figure 2;
the end and cover plates in these figures respectively being partly broken away or
removed to show the internal fittings; while Figure 4 is a transverse section
corresponding to and at right angles to the view shown in Figure 2.
Referring to these drawings:-The improvements consist in leading the dis-
charged gases from the exhaust port A' of the cylinder A of gas engine or engines
by a pipe A preferably first through one or more of the usual metallic exhaust
boxes or hollow chambers A' and then taking them by another pipe A' to and
passing them through a new or improved purifying and noise silencing box or
vessel B or it may be a tank, chamber or chambers. This new vessel B is
preferably constructed of square or rectangular shape of cast-iron or other metal as
shown, or of stone, brickwork, cement, or wood, and for a four nominal horse
power gas engine might be two and one half feet long by two feet broad and two
feet high, and be fitted with a portable or removable lid or cover B' on top,
preferably of cast-iron, stone, or wood. One, two, or more horizontal perforated
grids or sieves, two B' being shown in Figures 2 and 4, are fitted at distances apart
across the chamber B and preferably made of spars of wood B' set on edge and.
resting portably on projecting flanges or bricks B" from the inner walls of the
vessel and connected together by transverse bolts b and separating collars b'. The
perforated sieves B2 would have filled over them layers C of calcium hydrate of a
moist consistency, or equivalent porous earths or chemical agents, to absorb
carbonic acid, sulphur, or other impurities from the waste gases passing through
them as well as deadening any sound of explosion. After passing through the
purifying and absorbing material C placed over the sieves B³, they may be dis-
charged through the port or hole in the lid B' into the engine room freed from all
noxious odours; or the gases thus rendered innocuous and inodorous may be led by
a fire-clay or other pipe 6", shown in dotted lines in Figure 1, through the wall W
of the building and discharged into the outer atmosphere. A series of baffle bricks,
cast-iron grids or other projections may be built or fitted with open interstices or
spaces between them in the lower part C¹ of the interior of this vessel B below
the bottom sieve B' against which the waste gases or products of combustion would
first impinge.
Any excess of water or moisture deposited in the lower part C' of the exhaust
silencing and purifying vessel B would be discharged or led off by a tap at C².
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 :-
First. The herein described method of purifying or rendering innocuous and
inodorous, and silencing the explosive discharge and exhaust gases from gas engine
cylinders by passing same through a layer or layers of calcium hydrate or
equivalent porous earths or chemical agents within a box or vessel, substantially as
set forth, in reference to and by way of application shown in the accompanying
drawings.
Second. In combination with the cylinders of gas engines the use of a box or
chamber in which is placed a layer or layers of calcium hydrate or equivalent
porous earths or chemical agents over a perforated sieve or sieves, substantially as

page_text: and for the purposes herein described in reference to and by way of application
shown in the accompanying drawings.
Third. The combination comprising a gas engine or engines A, a noise reducing
vessel or vessels A' and a noise silencing and purifying box or vessel B, containing
calcium hydrate or equivalent porous earths or chemical agents, substantially as
and for the purposes herein described, in reference to and by way of application
shown in Figure I of the accompanying drawings.
Dated the 20th January 1892.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.