Improvements in Carburetting Apparatus for Gas Lights.
Year: 1892

page_text: Date of Application, 9th Nov., 1892
Complete Specification Left, 6th June, 1893-Accepted, 22nd July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Carburetting Apparatus for Gas Lights.
We JAMES PARKES, and JOSEPH PARKES, both of 116 Alma Street, in the
City of Birmingham, Manufacturers do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in the means by which the necessary
heating of the gas and melting of the carbon is effected, and its object is to
provide that the gas flame by which the said heating is effected, is taken from
the supply before it has become carburetted, also that it is so located as not to
interfere with the carbon vessel, nor yet to interfere with or limit the position
of the illuminating lights.
This our invention applies to chandeliers or lamps where the carbon vessel is
situated below the illuminating lights, hence from the manner in which such
lamps are now constructed, it is necessary to have the heating flame or flames
near to the side of the down pipe, and consequently the radiating side heat is
not so effective as if used in a vertical position. Also for the sake of uniform
appearance a number of such lights are placed around the said pipe, one of the
objectionable effects of which is to increase and make more definite the shadow
from the vessel below them.
Further, in carrying out effective designs under these conditions it becomes
somewhat necessary to keep all the illuminating lights within as narrow a circle
as possible to the centre pipe.
Now in order to remedy these objections and to improve such apparatus we have
made this our invention, which is somewhat as follows:-In the down supply pipe
and just before the gas enters the carbon vessel we make such pipe into a circular
or ring pipe shape, so that the gas may pass down either side and thence into the
said vessel. Within this ring or other similarly shaped portion and immediately
beneath its upper part, we now provide a gas burner, the flame of which by tap
or other suitable device may be increased or decreased. This flame therefore acts
directly from each of its sides upon the two sides of the ring pipe, and also
directly in a vertical manner against the underside of the crown or branching of
the pipe above it, thus imparting the maximum amount of heat to the pipe. This
heat increases the temperature of the supply gas which together with the heat
conducted by the hot pipe, melts the carbon in the vessel and effects the mixture
of the vapour given off with the heated gas, and thus thoroughly carbonizes the
latter. It will be here noticed that the gas used for the heating flame is drawn
from the supply before it has passed into the carburetting vessel, and consequently
no increase is made in its volume of flame by reason of subsequent carburization
as in the case of most if not all apparatus now in use.
The illuminating lights may now be branched out from the upper part of the
vessel to any reasonable distance required so that by their greater distance from
the centre the usual shadow from the vessel beneath the said light is minimised.
Although we have described the branching or breaking of the direct downward
line of the supply pipe for the purpose of applying a heating flame thereunder,
still we do not confine ourselves to this precise way or shape of doing it, so long
as we heat the supply pipe directly over a central or approximately central flame.
The effect of using the uncarburetted gas for heating purposes is to fully
prevent the usual liability to "over-carbonize or overheat the vessel.
Dated this 8th day of November 1892.
"
CHARLES T. POWELL,
Applicants' Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Carburetting Apparatus for Gas Lights.
We JAMES PARKES, and Joseph Parkes, both of 116 Alma Street, in the
City of Birmingham, Manufacturers 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 the means by which the necessary
heating of the gas and melting of the carbon is effected, and its object is to provide
that the gas flame by which the said heating is effected, is taken from the supply
before it has become carburetted, also that it is so located as not to interfere with
the carbon vessel, nor yet to interfore with or limit the position of the illuminating
lights.
This our invention applies to chandeliers or lamps where the carbon vessel is
situated below the illuminating lights, hence from the manner in which such lamps
are now constructed, it is necessary to have the heating flame or flames near to the
side of the down pipe, and consequently the radiating side heat is not so effective
as if used in a vertical position. Also for the sake of uniform appearance a
number of such lights are placed around the said pipe, one of the objectionable
effects of which is to increase and make more definite the shadow from the vessel
below them.
Further, in carrying out effective designs under these conditions it becomes
somewhat necessary to keep all the illuminating lights within as narrow a circle
as possible to the centre pipe.
Now in order to remedy these objections and to improve such apparatus we have
made this our invention, as hereinafter described.
In order to more clearly explain this our invention, we have appended hereunto
an illustrative sheet of drawings upon which are figures and numbers of reference,
similar numbers referring throughout the several views to the same thing or part.
Fig. 1, illustrates a gas fitting embracing this our invention.
Fig. 2, is a sectional view of the invention showing the gas passages and their
relation to the heating burner &c.
Fig. 3, is a side view in elevation of the invention as it is shown in Fig. 2.
4, is the down supply pipe. 5, is the carbon vessel. 6, 6, &c. are the
illuminating lights. 7, is the gas and carbon heating flame. 8, is the ring or
branch pipe by which the gas is carried directly over the flame 7.
In the down supply pipe 4, and just before the gas enters the carbon vessel 5,
we make such pipe of a circular or ring shape 8, so that the gas may pass down
either side and thence into the said vessel 5. Within this ring 8, (or other similarly
shaped portion) and immediately beneath its upper part, we now provide a gas
burner 9, the flame 7 of which may if desired be increased or decreased by tap 10
or other suitable device. Usually however such tap 10 will not be required, as the
amount of flame may be determined by the size of the burner and then remain
constant. This flame 7 therefore acts directly from each of its sides upon the two
sides 8, 8, of the ring pipe 8, and also directly in a vertical manner against the
underside 8, of the said pipe, thus imparting the maximum amount of heat thereto.
This heat increases the temperature of the supply gas which together with the heat
conducted by the now heated pipe, melts the carbon in the vessel 5, and effects the
mixture of the vapour given off, with the heated gas, and thus thoroughly
carbonizes the latter. It will be here noticed that the gas used for the heating
flame 7, is drawn from the supply before it has passed into the carburetting vessel 5,
and consequently, no increase is made in its volume of flame by the carburization
which takes place in the vessel 5, as in the case of most if not all apparatus now
in use.
The illuminating lights 6, 6, may now be branched out from the upper part of

page_text: the vessel 5, to any reasonable distance required, as their auxiliary heating
assistance is not needed, hence by their greater distance from the centre, the usual
shadow from the vessel beneath the said lights is minimised.
Although we have described and shown the ring shape of pipe for the branching
or breaking of the direct downward line of the supply pipe for the purpose of
applying a heating flame thereunder, still we do not confine ourselves to this
precise way or shape of doing it, so long as we heat the uncarburetted supply pipe
directly over a central or approximately central flame, by branching or diverting
the down line of the said pipe.
The effect of using the uncarburetted gas for heating purposes is to fully prevent
the usual liability to over-carbonize or overheat the vessel.
66
"
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
1. In gas carburetting apparatus the combination with the supply pipe 4, of a
diverting or ring like pipe 8, by which the supply gas is heated by a central flame 7,
which said flame is fed by uncarburetted gas after the manner herein stated and
shown.
2. In gas carburetting apparatus the combination with the carbon vessel 5,
illuminating lights 6, 6, and supply pipe 4, of a central heating flame 7, immediately
or near above the said vessel 5, substantially as shown and described.
Dated this 5th day of June 1893.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicants' Agent.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicants' Agent.