IMPROVEMENTS IN LIGHTING AND VENTILATING BY GAS
Year: 1858

page_text: LETTERS PATENT to Thomas Chambers Hine, of Nottingham, Architect,
for the Invention of "IMPROVEMENTS IN LIGHTING AND VENTILATING BY
GAS."
Sealed the 27th August 1858, and dated the 17th March 1858.
PROVISIONAL SPECIFICATION left by the said Thomas Chambers Hine
at the Office of the Commissioners of Patents, with his Petition, on the
17th March 1858.
I, THOMAS CHAMBERS HINE, of Nottingham, Architect, do hereby declare
the nature of the Invention for "IMPROVEMENTS IN LIGHTING AND VENTILATING
BY GAS," to be as follows:-
This Invention has for its object improvements in lighting and ventilating,
by gas. For these purposes I use a series of horizontal flames of gas pro-.
duced by ordinary union, jet, or bat-wing burners attached to a ring in a
horizontal position, and over this ring I place a dome of glass or other trans-
lucent material of somewhat larger diameter than the ring, from the summit.
of which passes a pipe through which the products of combustion are con-
veyed out of the room to a chimney or some other convenient place. The
lower part of this dome may be closed by a dise of glass, which may be
connected to the dome by a metal rim, the disc of glass or the metal rim
being sufficiently perforated for the admission of air from the room for sup-
porting combustion and carrying on ventilation. On the outside of the
horizontal portion of the combustion or ventilating pipe I use another pipe of

page_text: larger diameter, and through the annular space between these two pipes fresh
air is conducted into the room by a continuation of the larger pipe to the
external air, and is discharged at the ceiling over the vertical pipe or at some
other convenient part of the room after having become warmed in its passage
in the annular space between the two pipes. Where an increase of heat is
required, I purpose continuing the annular tube down the vertical portion of
the combustion pipe, and admit the warmed air into the room at its lower
extremity a short.distance above the summit of the glass dome.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Chambers Hine in the Great Seal Patent Office on
the 17th September 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
CHAMBERS HINE, of Nottingham, Architect, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of March, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Thomas Chambers Hine, Her special licence that I, the said Thomas
Chambers Hine, my executors, administrators, and assigns, or such others as
I, the said Thomas Chambers Hine, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "IM-
PROVEMENTS IN LIGHTING AND VENTILATING BY GAS," upon the condition
(amongst others) that I, the said Thomas Chambers Hine, my executors or
administrators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, and cause
the same to be filed in .the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent..
NOW KNOW YE, that I, the said Thomas Chambers Hine, do hereby
declare the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
This Invention has for its object improvements in lighting and ventilating

page_text: by gas. For these purposes I use a series of horizontal flames of gas pro-
duced by ordinary union, jet, or bat-wing burners attached to a ring in
horizontal position, and over this ring I place a dome of glass or other trans-
lucent material (of somewhat larger diameter than the ring) from the summit
of which passes a pipe, through which the products of combustion are con-
veyed out of the room to a chimney or some other convenient place. The
lower part of this dome may be closed by a disc of glass, which may be
connected to the dome by a metal rim, the disc of glass or the metal rim
being sufficiently perforated for the admission of air from the room for sup-
porting combustion and carrying on ventilation. On the outside of the
horizontal portion of the combustion or ventilating pipe I use another pipe of
larger diameter, and through the annular space between these two pipes fresh
air is conducted into the room, by a continuation of the larger pipe, to the
external air, and is discharged at the ceiling over the vertical pipe or at
some other convenient part of the room after having become warmed in its
passage in the annular space between the two pipes. Where an increase of
heat is required, I purpose continuing the annular tube down the vertical
portion of the combustion pipe, and admit the warmed air into the room at
its lower extremity a short distance above the summit of the glass dome.
Having thus described the nature of my Invention, I will proceed to
describe more fully the manner of performing the same.
DESCRIPTION OF THE DRAWING.
The Drawing shews a section of an apparatus for lighting and ventilating
by gas constructed according to my Invention. a, a, are ordinary union, jet,
or bat-wing burners attached in a horizontal position to the ring b; the ring b
is connected by means of the tubes c, c, with the vertical tube d, through
which gas is supplied to the burners a. Over the ring there is a dome e of
glass or other translucent material, to the summit of which a metal pipe fis
connected by means of short chains f¹; the pipe f passes up to the ceiling g
of the room, and between the ceiling and the floor above to the ordinary
smoke flue from the fire-place; the horizontal portion of the pipe f is sur-
rounded by a pipe h of larger diameter, one end of which passes through the
ceiling, and is open to the room, and the other end is continued so as to
communicate with the external atmosphere. The heated products of com-
bustion from the burners a pass up through the pipe f and into the smoke
flue from the fire-place, and fresh air is admitted into the room through the
pipe h after having become warmed in its passage in the annular space
between the two pipes. Where an increase of heat is required, the pipe h

page_text: may be continued down the vertical portion of the pipe f, and admit the
warmed air into the room at its lower extremity a short distance above
the summit of the glass dome. If it is required to close the lower part of
the glass dome e, a disc of glass k may be connected to the lower part of the
dome e by a metal rim ', the disc of glass or the metal rim being sufficiently
perforated for the admission of air from the room for supporting combustion
and carrying on ventilation.
In witness whereof, I, the said Thomas Chambers Hine, have hereunto
set my hand and seal, this Third day of September, in the year of our
Lord One thousand eight hundred and fifty-eight.
Witness,
GEO. HINE,
Nottingham.
THOMAS CHAMBERS HINE. (L.S.)

page_text: In the Matter of a Patent granted to Thomas Chambers Hine, of
Nottingham, Architect, for the Invention of "IMPROVEMENTS IN
LIGHTING AND VENTILATING BY GAS," bearing date the Seventeenth

page_text: by which the Drawing is made to agree with the description contained in the
Provisional and Complete Specifications.
In witness whereof, I, the said Thomas Chambers Hine, have hereunto
set my hand and seal, this Eighth day of February, in the year of our
Lord One thousand eight hundred and fifty-nine.
I hereby grant my fiat, giving leave to the above-mentioned Thomas
Chambers Hine, to file in the Great Seal Patent Office, with the Specification
to which the same relates, the above-written Memorandum of Alteration.
Temple, 17 Feb
1859.
FITZROY KELLY.