IMPROVE- MENTS IN MEANS OR APPARATUS FOR LIGHTING VENTILATING AND ROOMS BY MEANS OF GAS
Year: 1884

page_text: I THOMAS DRYSLWYN GRIFFITHS of Swansea in the County of Glamorgan
Doctor of Medicine do hereby declare the nature of said Invention for "IMPROVE-
MENTS IN MEANS OR APPARATUS FOR LIGHTING VENTILATING AND
ROOMS BY MEANS OF GAS" to be as follows:-
HEATING
According to my Invention I take a gas-burner which may be a fish tail, argand,
or any other suitable description of burner capable of being covered by a globe or
glass and used as a bracket burner. Above this burner I support a conical shade
or funnel the wider lower end of the said shade or funnel encircling the upper part
of the globe or glass of the burner so as to leave a space between the interior of
the lower part of the said shade or funnel and the exterior of the upper part of the
said globe or glass. From the upper part of the shade or funnel a pipe leads to a
chimney, flue or other suitable outlet. I prefer to provide the parts with a back
plate separated from the wall by a non-conductor of heat and to provide a
projecting plate or plates or ring or rings on the exterior of the funnel or the tube
thereof or both, the said plates and rings being for the purpose of taking up and
radiating the heat froin the gas flame and they may also act as reflectors. The
back plate may carry the portions of tubing or pipe situated inside the room and
forming the continuations of the gas supply pipe and outlet pipe the connection of
the said portions of tubing and pipes with the other portions being effected by
screw coupling or any suitable means.
When the gas flame is lighted a current of air will be drawn through the space
between the shade or funnel and the globe or glass of the burner and this current
will temper the heat and moderate the current through the lamp and at the same
time the gases from the flame are conducted away through the said shade or
funnel and the flue or outlet in connection there with and discharged outside so
that no foul air pollutes the atmosphere of the room and the ventilation of the said
room is secured.
E
T
1004

page_text: I THOMAS DRYSLWYN GRIFFITIIS of Swansea in the County of Glamorgan
Doctor of Medicine do hereby declare the nature of my said invention for
"IMPROVEMENTS IN MEANS OR APPARATUS FOR LIGHTING VENTILATING AND
HEATING ROOMS BY MEANS OF GAS" and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
My Invention has for its object to provide an arrangement of Gas lighting
bracket by means of which the room in which it is used is at the same time
ventilated or both ventilated and warmed. I will describe my Invention with
reference to the accompanying Drawing which represents in transverse section an
apparatus arranged according to my Invention.
According to my said Invention I take a gas burner A which may be a fish-tail,
argand. or any other suitable description of burner capable of being covered by a.
globe or glass and used as a bracket burner. Above this burner I support a conical
shade or funnel B the wider lower end of the said shade or funnel encircling the
upper part of the globe or glass C of the burner so as to leave a space between the
interior of the lower part of the said shade or funnel and tho exterior of the upper
part of the said globe or glass. From the upper part of the shade or funnel B a
tube or pipe leads to a chimney, flue or other suitable outlet which preferably
consists of a long shaft or pipe extending upwards through the walls and roof and
terminated if needful by a ventilating top-the said shaft or passage being isolated
from any wood work by cement or other non-conductor of heat where needful. 1
prefer to provide the parts with a back plate which may be separated from the
wall by a non-conductor of heat and to provide a projecting plate or plates or ring
or rings as at E on the exterior of the funnel, or the tube thereof or both, the said
plates and rings being for the purpose of taking up and radiating the heat from the
gas flaine, and they may also act as reflectors. The back plate D may carry the
portions of tubing or pipe situated inside the room and forming the continuations
of the gas supply pipe, and outlet pipe, the connection of said portions of tubing
and pipes with the other portions, being effected by screw couplings or any suitable
means.
As shown in the drawing the connections are made by fixing in the wall the
ordinary gas pipe, and above it a cast iron bend or pipe F forming the lower end
of the outlet pipe or shaft extending upwards as aforesaid. The plate D is secured
against the wall, and an ornamental or reflecting plate C is secured over this by the
couplings which connect the short downwardly bent pipe B2 of the funnel B, and
the gas bracket, the said couplings passing through holes in the said plates D
and ; A piece of asbestos or other non-conductor of heat may be arranged at IT,
to prevent the heat of the pipe 13' from being conducted to the plate. D.
When the gas flame is lighted a current of air will be drawn through the space
between the shade or funnel and the globe or glass of the burner, as indicated by
the arrows and this current will temper the heat and moderate the current through
the lamp and at the same time the gases from the flame are conducted away
through the said shade or funnel and the flue or outlet in connection therewith and
discharged outside so that no foul air pollutes the atmosphere of the room and the
ventilation of the said room is secured. The pipe B will materially assist in
warming the room. I do not limit myself to the precise details hereinbefore
described as they may be varied without departing from the nature of my
Invention. For example the funnel or conductor B is not of necessity of the

page_text: precise form shewn as it may be like an ordinary gas globe and the bracket burner
and glass or globe encircling the gas flame may be of the argand or any other type
provided a passage for air is left between the funnel and the globe or glass of the
burner substantially as hereinbefore described.
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
First-In Gas bracket lights the combination of a funnel or conductor and an
outlet pipe or passage led into the open air, the said funnel or conductor being
arranged so as to leave an air space between itself and the glass or globe
surrounding the gas flame, substantially as and for the purpose herein before
described and illustrated by the accompanying Drawing.
Second-In gas bracket lights the combination of a back plate or plates forming
a lacking to or the means of attachment of the arm of the Gas bracket and of an
outlet pipe carrying a funnel or conductor surrounding the globe or glass enclosing
the gas flame so as to leave an air passage between the said funnel or conductor
and the said globe or glass whether or not there be used radiating or reflecting
plate or plates upon the funnel or its tube all substantially as hereinbefore described
and illustrated by the accompanying Drawing.
Dated this 16th day of October 1884.
J. HENRY JOHNSON,
47, Lincoln's Inn Fields, London, W.C.,
Agent for the said Thomas Dryslwyn Griffiths.