IMPROVEMENTS IN APPARATUS FOR ENRICHING ILLUMINATING GAS
Year: 1886

page_text: C
I, JAMES PARKES of 234 Burbury Street Aston, in the county of Warwick, Gas
Engineer do hereby declare the nature of my invention for IMPROVEMENTS IN
APPARATUS FOR ENRICHING ILLUMINATING GAS and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement :-
This invention consists in the construction and arrangement of the parts herein-
after named in connection with, and constituting improvements for increasing
the illuminating power of coal gas in combination with hydrocarbon substances
or vapours, and also for regulating the heat applied to the carburretting vessel.
By the assistance of the accompanying sheet of drawings, upon, which are figures
and letters of reference, I will now proceed to describe this my invention, and how
it may be carried out.
Fig. 1 is an elevation shewing a general view of one form of arrangement in
which this my invention may be made.
Fig. 2 is an elevation in section of Fig. 1..
Fig. 3 is a modification of Fig. 1 as arranged to carry a globe.
Fig. 4 is a plan of Fig. 3 shewing how one or more lights may be adopted.
In this my description, like letters upon the drawings refer throughout to the
same thing.
0
In Figs. 1, 2, 3 & 4, a is the carburretting vessel, containing the cabonaceous
substance; this vessel itself may be made of any desired suitable shape. Into this
vessel near the top I form a gas supply pipe b, similar in construction to the supply
pipe described in my application for letters patent No 454, 1886, that is to say :-
"I.make the upper part of the vessel in one with the supply pipe b; in and
through the underneath of the supply pipe b, F perforate a number of holes d; d,
"and so place them that the pressure of the gas in the pipe shall tend to force the
gas downwards in the direction of the arrows, ensuring by these means the more
complete mixing of the gas with the hydrocarbon vapours before its escape to
"the burners. The end of this pipe at is stopped." In the upper part of the
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page_text: vessel I make provision for the charging of the same with the carbonaceous
substance, by and through an opening f, into which is fitted a plug g, so that it
can be readily removed or replaced.
+
Again, from this upper part of the vessel, I carry the delivery pipe or, pipes h.
This pipe h, is so arranged as to answer not only the purpose of conveying the
enriched gas to the burners i & k, but also shaped as shewn at p, or similar thereto,
that is, it is made wider than the pipe would usually be, so as to present a large
heating surface over the flame of the heating burner i. By making this pipe h,
in this manner, I find, that by conductivity to the vessel a, the heat from the flame
of the burner i, acting thereon makes it sufficiently hot, together with the rays of
heat that are communicated to the sides of the vessel itself, for the vapourizing of
the carbonaceous substances, and the mixing of such vapours with the coal gas, and
also keeping the enriched gas hot, while upon its way to the burner or burners k,
and thus obviates the use of heating plates in the manner usually adopted.
Near the gas jet i, I place a tap or cock m; this tap being so made that it does
not interfere with the supply of gas to the burner k, but regulates the supply of
gas to the heating burner i, in such a manner that it may be open full, or, nearly
closed, but is provided with a stop arrangement at n, or by other equivalent
means, so that it cannot be quite closed to the heating burner. The pipe o leads
away to the burner k, the gas supply being regulated by an independent tap at
any desired part of the arrangement, but generally upon the supply pipe, to which
the pipe b is connected.
A great defect in most if not all apparatus hitherto used for this purpose exists
by reason of certain parts which are liable to wear out or become impaired are
inaccessible by being placed inside the vessel a, while in this my invention I have
no loose or separate parts inside the vessel; the arrangement of the supply pipe b,
and delivery pipe h, obviating this.
It is found that in apparatus of this kind when the illuminating gas is first
lighted there requires a certain amount of heat to bring the carburretting vessel
into proper working order, but that when the temperature is so raised, the
continuous supply of heat, may be reduced and for this purpose I have introduced
the stop cock or tap m.
Instead of having but one light k. I may in some instances arrange my
apparatus as shewn at Fig. 3, which would be suitable to carry a globe, or, I may
form two branches for burners from the same delivery pipe h as shewn in plan
at r.& 8 Fig. 4.
Again, the number of these delivery pipes h, may be increased to suit
requirements, and arranged around the vessel a, similarly as shown by dotted
lines t, u, v, w, x & y. When a number of lights are thus arranged around the
vessel a, I may either attach to each such light, a stop tap m, Figs. 1, 2 & 3, or,
place these taps upon alternate lights, as, when in close proximity to each other
the heating power would be sufficient..
Further, instead of attaching the supply pipe b, to the gas main in an horizontal
manner as in Figs. 1 & 2, I may arrange it as a suspending light in the manner
shewn in Fig. 3 by dotted lines a 1, & 61, the gas supply in this case passing
down the pipes in the direction of the arrowa.
It will be seen that in this arrangement there is no unenriched gas consumed
either for heating or illuminating, as the heating burner is attached to the
delivery pipe h.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
.
1st. The forming of a heating surface for heating the carburretting vessel a,
Figs. 1, 2, 3 & 4, by widening the surface of the pipe h, at p, over the separate
regulating heating burner i, in a similar manner as shown.

page_text: 2nd. The use of a "stop" tap or cock m, to regulate the amount of heat,
communicated to the carburretting vessel a, similarly as berein described and
shewn upon the drawings.
3rd. The arrangement of the separate heating burner i, Figs. 1, 2, & 3, in
connection with the delivery pipe h, so as to consume enriched gas.
4th. The combination of the general arrangement of the apparátus, and the
modifications as herein described and shewn upon the drawings.
Dated this 1ot don
Mach 1000
CHARLES T. POWELL,
Agent for the Applicant.