Improvements in or connected with the Construction of Sun Burner Gas Lamps.
Year: 1889

page_text: Date of Application, 21st Sept., 1889
Complete Specification Left, 18th June, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Construction of Sun Burner
Gas Lamps.
I, JAMES STOTT of 174 Fleet Street, City of London, Gas Engineer, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is improvements connected with gas lamps known as
Thorp's Non-regenerative Light, and relates to lamps of the Sun burner type, which I
provide with means for ventilating and carrying off the products of combustion,
also with an arrangement for effecting the operation termed "flashing," is. lighting
a series or cluster of burners from one or more pilot lights.
In carrying out my invention, I suspend a number of cluster lights of the Thorp "
system from a central supply pipe, and I enclose the whole series of clusters in a
bell, or other shaped cover, or ventilator up which the products of combustion from
the burners in the clusters, pass to a ventilating shaft from which the bell cover or
ventilator is suspended, and from the shaft they escape to the atmosphere. The
bell or cover is so shaped as to form a passage around in close proximity with the
domes or deflectors of the cluster lights thereby maintaining a high temperature.on
the outside of the deflectors by the passage of the heat and products of com-
bustion up the ventilator and guard against the access of cold currents of air, thus
preventing cracking of the enamel on the inside of the deflectors due to difference
of temperature. The inside of the cover may be also enamelled.
In connection with the ventilating cover or shaft, I arrange a valvo or damper
for temporarily shutting off the outlet in order that when the gas is turned on from
the gas cock the escaping gas from the burners will accumulate and remain in the
vicinity and assist to communicate and spread the flame from the pilot light to all the
jets, this operation being termed "flashing." This valve may be operated from a
distance.
The deflecting domes which I prefer to employ are of mushroom shape with a
hollow conical enamelled stem which increases the reflecting properties of the clomes,
as described in my Application for Patent filed the 20th September 1889 No. 14884.
The domes may also be covered or coated on the outside with a non-conductor in
order to maintain an equal, or nearly equal temperature of the dome inside and outside,
as described in my Application for Patent above referred, the non-conducting
composition being provided with a metal or other cover, if desirod.
Dated this 51st day of Santemben 1930
COMPLETE SPECIFICATION.
Improvements in or connected with the Construction of Sun Burner
Gas Lamps.
I, JAMES STOTT, of 174 Fleet Street, City of London, Gas Engineer, do hereby
declare the nature of this invention and in what manner the same is to bo
performed to be particularly described and ascertained in and by the following
statement:-
The object of this invention is improvements connected with Gas Lamps known as
Thorps' Non-regenerative Light Patent No. 10,698 of 1886 and relates to lamps of
the sun burner type, which I provide with means for ventilating and carrying off
the products of combustion.

page_text: In carrying out my invention, which is illustrated in the annexed drawing, I
suspend two or more cluster lights A, of the "Thorp" system from a central supply
pipe F, and I enclose the whole number of cluster lights in a conical or other shaped
cover B up which the products of combustion, from the burners in the clusters, pass
to a ventilating shaft C from which the outer cover D is suspended, and is connected
The contour of the inner
with the inner cover and shaft B by a ventilated rim E.
cover B is such as to form a passage around in close proximity with the domes or
deflectors A, A, of the cluster lights, thereby maintaining a high temperature on the
outside of the deflectors by the passage of the heat and products of combustion up
the ventilating cover B and guarding, against the access of cold currents of air, thus
preventing cracking of the enamel on the inside of the deflectors A, A, due to
difference of temperature.
The deflecting domes A which I prefer to employ are of mushroom shape with a
hollow conical enamelled stem which increases the reflecting properties of the domes,
as described in my Application for Patent filed the 20th September 1889 No. 14884.
The domes may also be covered or coated on the outside with a non-conducting
substance in order to maintain an equal, or nearly equal temperature of the dome
inside and outside, as described in my Application for Patent above referred to, the
non-conducting composition being provided with a metal, or other cover, if desired
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is
The combination of a number of cluster lights, as hereinbefore set forth, with a
canopy for maintaining a high state of temperature on the upper surfaces of the
deflecting domes, in connection with a ventilating shaft, to carry off heat and the
products of combustion, substantially as shown and described.
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said James Stott.