AN IMPROVED COMBUSTIBLE COMPOUND
Year: 1869

page_text: LETTERS PATENT to William Robert Lake, of the "International
Patent Office," No. 8, Southampton Buildings, London, Consulting
Engineer, for the Invention of "AN IMPROVED COMBUSTIBLE COMPOUND."
-A communication from abroad by Joseph Philipps, Louis Kiesling,
and Ferdinand Kohlstadt, Junior, all of Cologne, Germany.
Sealed the 22nd December 1869, and dated the 22nd June 1869.
PROVISIONAL SPECIFICATION left by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition,
on the 22nd June 1869.
I, WILLIAM ROBERT LAKE, of the "International Patent Office,"
No. 8, Southampton Buildings, London, Consulting Engineer, do hereby
declare the nature of the said Invention for "AN IMPROVED COMBUSTIBLE
COMPOUND," a communication, to be as follows:-
The said Invention cousists in a burning compound formed by mixing
the solid products of the dry distillation of coals, schist, asphalt,
bitumen, and mineral oils in oxygen, in presence of the fluid products of

page_text: the same bodies I use napthaline as the solid product and petroleum as
the fluid part of the said compound, and take 40 per cent. of napthaline
and 60 per cent. of petroleum well mixed. The napthaline dissolves in
the petroleum.
The burning is effected in a lamp constructed for this purpose, but
the construction of the said lamp is no part of this Invention which
relates only to the composition of the fluid namely 40 per cent. of solid
napthaline and 60 per cent. of petroleum.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Robert Lake in the Great Seal Patent
Office on the 22nd December 1869).
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the "International Patent Office," No. 8, Southampton
Buildings, London, Consulting Engineer, send greeting.
WHEREAS Her most. Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of June, in the year
of our Lord One thousand eight hundred and sixty-nine in the thirty-
second year of er reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Robert Lake, Her
special licence that 1. the said William Robert Fake, my executors,
administrators, and assigns, or such others as I, the said William
Robert Lake, 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 "AN IMPROVED COMBUSTIBLE COMPOUND," upon the condition
(amongst others) that I, the said William Robert Lake, 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 he 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.

page_text: NOW KNOW YE, that I, the said William Robert Lake, do hereby
declare the nature of the said Invention, and in what manner the same
is to.he performed, to be particularly described and ascertained in and
by the following statement:--
This Invention consists in a burning compound formed by mixing the
solid products of the dry distillation of coal, slate, asphaltum, bitumen,
and mineral oils with the liquid products of the dry distillation of the
same bodies. This mixture is burnt in oxygen. Preferably 1 use
naphthaline as the solid body with mineral oils as the
use about 40% naphthaline and 60% mineral oils.
liquid part, and I
The combustion is effected in a lamp adapted for the admission of
oxygen, but this Invention has no reference to the said lamp.
Having now described the said Invention as communicated to me by
my foreign correspondents I claim, the mixture of the solid naphthaline
with the liquid products of dry distillation, substantially as and for the
purpose set forth.
In witness whereof, I, the said William Robert Lake, have here-
unto set my hand and seal, this Twenty-first day of December,
in the year of our Lord One thousand eight hundred and sixty-
nine.
10
5
Witness,
H. J. GEDGE,
Clerk to Messrs. Haseltine, Lake, & Co.,
8, Southampton Buildings,
London.
HARE.
(L.S.)