IMPROVEMENTS IN APPARATUS TO BE USED IN COMBINA-. TION WITH A GAS BURNER FOR CONCENTRATING THE LIGHT OF THE SAME
Year: 1872

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine,
Lake, & Co., Patent Agents, Southampton Buildings, London, for
the Invention of "IMPROVEMENTS IN APPARATUS TO BE USED IN COMBINA-.
TION WITH A GAS BURNER FOR CONCENTRATING THE LIGHT OF THE SAME."
A communication from abroad by Samuel Raynor, of the City and
"
-
COMPLETE SPECIFICATION filed by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition
and Declaration, on the 3rd April 1872, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London, send greeting.
WHEREAS I am in possession of an Invention for “ IMPROVEMENTS IN
APPARATUS TO BE USED IN COMBINATION WITH A GAS BURNER FOR CONCENTRATING
THE LIGHT OF THE SAME," and have petitioned Her Majesty to grant unto
me, my executors, administrators, and assigns, Her Royal Letters Patent

page_text: for the same, and have made solemn Declaration that it has been
communicated to me from abroad by Samuel Raynor, of the City and
State of New York, United States of America, Manufacturer.
NOW KNOW YE, that I, the said William Robert Lake, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention,
and in what manner the same is to be performed, in and by the
following statement, reference being had to the accompanying Drawing
forming a part of this Specification:-
This Invention consists in the arrangement of a ring bracket capable
of supporting a hemispherical cup in combination with a gas burner
which extends over the said ring bracket in a horizontal direction in
such a manner that if the hemispherical cup is filled with water or other
suitable liquid and the gas is lighted the illuminating power of the flame
will be concentrated by the water on a limited space below the said
cup, and a gas light thereby obtained which is of great advantage for
artists of different classes or for any purpose where a concentrated light

page_text: to shew the objects in the room where the light is burning. By these
means an illuminating apparatus is obtained which is of great advantage
to watchmakers, lithographers, engravers, artists, or workmen of any
kind wherever it may be desirable to produce a concentrated light on a
certain space. Experiments shew that by the application of the afore-
said concentrating cup to a gas burner the light is increased at least
four times, so that an ordinary two feet burner with the said con-
centrating cup produces a light of greater intensity than a six feet
burner without such concentrating cup. If desired a dome, shade, or
globe may be placed over the burner to increase the light still further.
.
Having thus fully described the said Invention, as communicated to
me by my foreign correspondent, and the manner of performing the
same, I wish it understood that I claim,-
First. The ring bracket A supporting the suspended cup C in com-
bination with the gas burner extending horizontally over the said cup,
substantially as and for the purpose described.
Second. The slotted arm a on the ring bracket in combination with
the cup C and burner c, as set forth.
In witness whereof, I, the said William Robert Lake, have here-
unto set my hand and seal, this Third day of April, in the year of
our Lord One thousand eight hundred and seventy-two.
Witness,
W. J. LowE.
W. ROBT. LAKE.
(L.S.)