IMPROVEMENTS IN SUN
Year: 1881

page_text: LETTERS PATENT to William Thomas Sugg, of Vincent Street, in the City
of Westminster, Engineer, for an Invontion of
LIQUTS"
IMPROVEMENTS IN SUN
PROVISIONAL SPECIFICATION left by the said William Thomas Sugg at the
Office of the Commissioners of Patents on the 15th June 1881.
WILLIAM THOMAS SUGG, of Vincent Street, in the City of Westminster,
Engineer. "IMPROVEMENTS IN SUN LIGHTS."
In sun lights as hitherto constructed the gas supply pipe to the burner is placed
in the centre of the chimney or funnel by which the heated gases and products of
combustion are carried off, the consequence is that the supply pipe in a short time
becomes red hot and communicates its heat to the gas, which expands in most
cases to twice its bulk, causing a large portion of its carbon to deposit in the tubes
and burners, thereby reducing considerably the illuminating power of the gas.
Besides this inconvenience it is impossible to regulate the quantity of gas passing
to the burners except at the main which is seldom available for such a purpose.
Now the object of this Invention is to so arrange the sun light that the gas
supply pipe shall not be exposed to the heat of the flame and the products of
combustion, and also to admit of governors being used to regulate the flow of gas
to the burner.
To this end I secure to the rim of the reflector a light metal framework of any
suitable shape, one or more of the ribs of which may be tubes in connection with
a gas supply pipe and the gas burner. This framework supports a hollow block
into which a vertical tube to carry the burners is screwed. At a point between
the hollow block and the burners a regulator, preferably one of my well known
regulators, is placed so as to allow only a specified quantity per hour of gas to pass
to the burners.
The gas supply I place outside the ventilating tube, and I connect it either
direct to the tube supplying the burners or to a ring in connection with all the
tubes forming the framework, or I connect it in any other convenient manner with
the burners.

page_text: The lower part of the framework may if desired be glazed to prevent the heat
given off by the burners striking downwards.
The above described arrangement is most suitable for sun lights already fixed,
but for new sunlights I prefer to modify somewhat the form. Thus I use the
ventilating shaft and chimney with reflector attached thereto as heretofore, and I
support the framework, which may be of any suitable shape, from a hollow ring
secured either externally to the ventilating shaft or to the ceiling or roof of the
apartment. The upper portion of the framework is glazed or otherwise filled in to
form a roof to the lantern, and the reflector which I prefer shall be of enamelled
iron, is supported by the framework in any convenient manner. The burners
which I prefer to use are my combination flat-flame burners, and to each spray
I attach a governor to regulate the supply of gas to each tip. The burner
is supported by a hollow block carried by the framework, as before explained.
The lower portion of the framework is filled in with glass as before explained.
Outside the lantern thus formed I secure a screen of colored or other glass which
will have the effect of preventing currents of air blowing directly onto the flame,
and thus rendering it unsteady. A similar screen may if desired be used with the
first described arrangement.
The gas is supplied to the ring, and from thenco passes through the framework
tubes to the burner.
By constructing sun lights as above described I am not only enabled to avoid
the heating of the gas supply pipe, thus obtaining the full illuminating power of
the gas, but I can regulate the flow of gas to the burners, thereby ensuring economy
in the consumption of the gas.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Thomas Sugg in the Great Seal Patent Office on the
15th December 1881.
WILLIAM THOMAS SUGG, of Vincent Street, in the City of Westminster,
Engineer. "IMPROVEMENTS IN SUN LIGHTS."
In sun lights as hitherto constructed the gas supply pipe to the burner is placed
in the centre of the chimney, by which the heated gases and products of com-
bustion are carried off, the gas jets being secured to radial branches. The result
of such an arrangement is that the supply pipe in a short time becomes red hot,
and communicates its heat to the gas passing through it, which expands in most
cases to twice its volume, causing a large portion of its carbon to deposit in the
tubes and burners, thereby reducing considerably the illuminating power of the
gas and stopping up the supply channels. Besides this inconvenience it is
impossible to regulate the quantity of gas passing to the burners except at the
main, which is seldom available for such a purpose.
Now the object of this Invention is to so arrange the sunlight that the gas
supply pipe shall not be exposed to the heat of the flame and of the products of
combustion, and also to admit of governors being used to regulate the flow of gas
to the burner.
In the accompanying Drawings I have shewn in elevation partly in section at
Fig. 1 a sunlight of the ordinary construction with my improvements adapted
thereto. In this Figure the roof and ceiling of a building to which the light is
applied are also shewn; Fig. 2 is a sectional elevation of a new sunlight constructed
according to my Invention.
In Fig. 1a is the reflector of the sunlight which is supported by the outside
basket b from the roof c of the sunlight. The roof c fits closely against the ceiling
of the building, and is connected with the ventilating shaft d, which is held in
position by stays e bolted to the ceiling joists f. The reflector a is provided with
a chimney a¹ placed centrally of the ventilating shaft & to carry off the products
of combustion, the vitiated air from the apartment passing off through the basketb
and between the reflector a and roof c to tho shaft d.
The ventilating shaft extends through the roof of the building and is surmounted
by a cowl or cap of any approved construction.
So far I have described a sunlight of the old form which I improve as
follows:-
To the rim of the reflector a I secure a light metal frame 9 of any suitablo
shape. I prefer that two at least of the ribs of this frame shall be tubes in con-
nection with a gas supply pipe. The frame g carries a hollow block which is
provided with a suitable cock h', and into which a suitable burner is fitted. The
burner which I prefer to use is what is known as " Sugg's combination flat flame
burner," which consists of a group of tubes i issuing from a single stem, and cach
provided with one of my steatite hollow topped burners ', the slits of which are
set at suitable angles to one another.
Between the block h and the stem of the burner I place a regulator j of any
approved construction, which will allow only a specified quantity of gas per hour
to pass to the burner; or I may use a separate regulator to each tube of the
combination burner.
The gas supply pipe I place outside the ventilating tube, and I connect it
either direct to the tubes of the frame g or to a ring k¹ in connection with these
tubes; or I may connect it direct with the block h by means of one of the arms G,
in which case the other arms or ribs of the framework may be solid.

page_text: In constructing a new sunlight according to my Invention I attach the frame g
(which as before explained may be of any suitable shape) to a hollow ring ', which
may be secured either to the ceiling of the apartment or to tho ventilating shaft d
(see Fig. 2). The ribs of the frame g in this case I form of tubes in connection
with the ring, so that the gas supplied to the ring by the supply pipe /
may be conveyed by those tubes to the hollow block to be distributed to the
burner.
The upper portion c of the framework is glazed or otherwise filled in to form
a roof to the lantern, and is connected with the ventilating shaft d. The reflector a
which I make either of porcelain or of enamelled iron is supported from the part c
of the framework in any convenient manner. The reflector a is provided with a
chimney a¹ placed centrally of the ventilating shaft d, as in the former arrange-
ment. The burner which I prefer to use is my combination flat-flame burner
above referred to, and each tube i is provided with a regulator to regulate the
supply of gas to each burner i¹. In some cases a single regulator for the whole
burner may be sufficient; any other form of flat flame burner which can be used
with a regulator may however be employed. The lower portion of the frame gis
glazed, as indicated by the scolloped line in the Figure, to prevent the heat given
off by the burners striking downwards. Outside the lantern thus formed I secure
a hanging screen 7 corresponding to the external form of the framework of colored
or other glass, which will prevent currents of air blowing directly onto the flame
and rendering it unsteady." A similar screen may if desired be used with the first
described arrangement, and the lower part of the framework may in like manner
bo glazed.
Having now described the nature of my Invention for "Improvements in Sun
Lights," and explained the manner of carrying the same into effect, I wish it to be
understood that under the above in part recited Letters Patent I claim,—
Constructing sun-lights, substantially as above described, whereby I avoid the
heating of the gas supply pipe, and thus prevent the deterioration of the gas, and
am also enabled to employ a governor or governors to regulate the flow of gas to
the burners, thereby ensuring economy in the consumption of the gas.
In witness whereof, I, the said William Thomas Sugg, have hereunto set my
hand and seal, the Fifteenth day of December, in the year of our Lord Ono
thousand eight hundred and eighty one.
WILLIAM T. SUGG
(L.S.)