An Exhaust Purifying Chamber for Gas, Oil or like Engines.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
An Exhaust Purifying Chamber for Gas, Oil or like Engines.
I, JAMES LOGAN WATKINS, of 33, Stansfield Road, Brixton, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention consists of an intercepting chamber disposed in or attached to
the exhaust pipe of gas, oil or like engines, to destroy, absorb or decompose the
sinell or deleterious vapours given off by the products of combustion. It consists
of a chamber or cylinder provided with an inlet and an outlet, across the diameter
of which is disposed one or more screens containing certain absorbent chemical
elements. Three screens are by preference used, the first preferably containing
pumice stone, the second lime, and the third charcoal.
The vapour is admitted at one end and passes through the screens and out at the
other end purified or filtered.
The intercepting chamber may, if preferred be provided with a safety valve if
necessary.
Dated this 21st dos of Tulu. 1800
S. S. BROMHEAD,
Agent for Applicant,
171, Queen Victoria Strect, E.C.
I, JAMES LOGAN WATKINS, of 33, Stansfield Road, Brixton, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following state-
ment:-
.
This invention consists of an intercepting chamber disposed in or attached to
the exhaust pipe of gas, oil or like engines, to destroy, absorb or decompose the
smell or deleterious vapors given off by the products of combustion. It consists
of a chamber or cylinder provided with an inlet and an outlet, and across the
diameter of the chamber or cylinder is placed one or more screens containing
certain absorbent chemical elements.
Three screens are by preference used, the first preferably containing pumice
stone the second lime, and the third charcoal.
The vapour is admitted at one end and passes through the screens and out at
the other end purified or filtered.

page_text: The intercepting chamber may, if preferred be provided with a safety valve
and a draw off tap.
I will now describe my invention with reference to the accompanying drawings
in which:-
Fig. 1 shows an outside front elevation of the intercepting chamber provided
with three doors or manholes which are shown closed by means of a locking bar.
Fig. 2, shows a sectional end view on line 1-1.
Fig. 3, shows an elevation similar to Fig. 1, with the manholes or doors and
locking bar removed.
a is the intercepting chamber which may be of any desired shape. It is pre-
ferably made of cast iron or of light plate or boiler iron, and provided at one
end with an inlet pipe b and at the other end with an outlet pipe c. Across the
chamber is tightly fitted one or more screens or partitions preferably of basket
form and made of wire or stamped metal and usually three in number d, c, f.
The first screen d is filled with broken pumice stone, the second e with grey
lime and the third f, with charcoal, preferably oak. The exhaust gases from
the engine enter the interceptor by the inlet b and after penetrating through the
interstices of the three screens and their contents leave by the oulet c in a purified
state.
To enable the screens to be removed for refilling one side of the chamber is
provided with one or more manholes or openings preferably one to each screen.
When the apparatus is in use each opening is closed by a cover or door, three
are shown in the drawings, d¹, e¹, f¹ locked in place by a bar h, which is screwed
up tightly to the covers by the nuts i, j, on the screws which pass through
the bar h. The nuts are made in the form of handwheels to obtain a better pur-
chase, and the screws preferably pass right through the chamber as shewn in
Fig. 2.
The inlet end of the apparatus is fitted with a safety valve k to prevent possible
explosion, and is also provided with a draw off cock ¹.
All joints in the apparatus are packed with asbestos or other fireproof material
so as to render them gas tight.
The screens are made to slide in and out in suitable guides as shown in the
detached section x.
Other absorbent materials than those specified may be used if preferred.
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:
:-
1. An intercepting chamber for the purification of the exhaust gases from cil,
gas, and like engines, said chamber being provided with suitable absorbent
materials such as pumice stone, lime, charcoal, or the like through which the
exhaust gases are caused to pass, substantially as shown and described.
2. In an intercepting chamber for the purification of the exhaust gases from
oil, gas, and like engines, the wire basket like screens in which the absorbent
materials are placed, in combination with doors d, e, f, the means for locking
them in position, the safety valve k and draw off cock, substantially as shown
and described.
D
1
1
S. S. BROMHEAD,
Patent Agent, 171, Queen Victoria Street, London, E.C.