IMPROVEMENTS IN COMBINING FLUIDS TO BE BURNED IN LAMPS
Year: 1855

page_text: LETTERS PATENT to George Fergusson Wilson, of Belmont, Vauxhall, and
Warren De la Rue, of Bunhill Row, for the Invention of "IMPROVEMENTS
IN COMBINING FLUIDS TO BE BURNED IN LAMPS."
Sealed the 3rd July 1855, and dated the 17th April 1855.
PROVISIONAL SPECIFICATION left by the said George Fergusson Wilson
and Warren De la Rue at the Office of the Commissioners of Patents,
with their Petition, on the 17th April 1855.
We, GEORGE FERGUSSON WILSON, of Belmont, Vauxhall, and WARREN DE
LA RUE, of Bunhill Row, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN COMBINING FLUIDS TO BE BURNED IN LAMPS " to be as follows:-
This Invention has for its object the preparation of a new description of
fuel for lamps, and consists of combining glycerine with alcohol, or with wood
spirit, or with both, or with a mixture of either with fusel oil, by which a
smokeless flame at a less cost than alcohol is obtained.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Fergusson Wilson and Warren De la Rue in the
Great Seal Patent Office on the 17th October 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, GEORGE
FERGUSSON WILSON, of Belmont, Vauxhall, and WARREN DE LA RUE, of
Bunhill Row, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of April, in the year of our Lord
One thousand eight hundred and fifty-five, in the eighteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said George Fergusson Wilson and Warren De la Rue, Her special licence that
we, the said George Fergusson Wilson and Warren De la Rue, our executors,
administrators, and assigns, or such others as we, the said George Fergusson
Wilson and Warren De la Rue, our 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
"IMPROVEMENTS IN COMBINING FLUIDS TO BE BURNED IN LAMPS," upon the condition
(amongst others) that we, the said George Fergusson Wilson and Warren
De la Rue, by an instrument in writing under our hands and seals, or under
the hand and seal of one of us, 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 George Fergusson Wilson, on behalf
of myself and the said Warren De la Rue, 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 the preparation of a new description of
fuel for lamps, and consists of combining glycerine with alcohol, or with wood
spirit, or with both, or with a mixture of either with fusel oil, by which a
smokeless flame at a less cost than alcohol is obtained.
Having thus stated the nature of our said Invention, we will proceed more
fully to describe the manner of performing the same.
These matters may be mixed in varying proportions, but we believe that the

page_text: following will be found most suitable:-When spirits of wine and glycerine
are to be combined, we recommend two parts by measure of spirits of wine of
commerce, one part by measure of glycerine, specific gravity 1.24. When wood
spirit or pyroligneous æther is to be used in combination with glycerine, then
we recommend two parts by measure of wood spirit or pyroligneous æther,
one part by measure of glycerine, specific gravity 1.24. When fusel oil is to
be used, we recommend one part by measure of spirits of wine of commerce,
mixed first with one part by measure of fusel oil, then add one part of
glycerine, specific gravity 1.24. In like manner, one part of alcohol, one
part of wood spirit, and one part of glycerine may be mixed and used as a
fuel. The above mixtures of glycerine will be found valuable fuels for lamps
in place of alcohol or wood spirit, and suitable for ordinary spirit lamps using
ordinary wicks.
Having thus described the nature of our said Invention, and the com-
binations of glycerine with the other liquids mentioned, in order to manu-
facture combinations or compounds suitable for fuel for lamps, we would
have it understood that we do not confine ourselves to the proportions men-
tioned, but claim the combining glycerine with alcohol, wood spirit, and fusel
oil to produce fuel suitable for lamps.
In witness whereof, I, the said George Fergusson Wilson, have hereunto
set my hand and seal, this Sixteenth day of October, in the year of
our Lord One thousand eight hundred and fifty-five.
5
Witness,
B. GOBEY,
4, Old Square, Lincoln's Inn.
GEO. F. WILSON. (L.B.)