IMPARTING COLOURS TO HYDROCARBONACEOUS FLUIDS
Year: 1869

page_text: LETTERS PATENT to George Glover, of Raneleagh Road, Pimlico, in
the County of Middlesex, Gas Meter Manufacturer, for the Invention
of "IMPARTING COLOURS TO HYDROCARBONACEOUS FLUIDS."-A communi-
cation from abroad by Laslo Chandor, of St. Petersburg, in the
Empire of Russia.
Sealed the 7th September 1869, and dated the 11th March 1869.
PROVISIONAL SPECIFICATION left by the said George Glover at the
Office of the Commissioners of Patents, with his Petition, on the
11th March 1869.
I, GEORGE GLOVER, of Raneleagh Road, Pimlico, in the County of
Middlesex, Gas Meter Manufacturer, do hereby declare the nature of
the said Invention for "IMPARTING COLOURS TO HYDROCARBONACEOUS FLUIDS,"
being a communication from abroad by Laslo Chandor, of St. Peters-
burg, in the Empire of Russia, to be as follows:-
The object of this Invention is, that as I have methods known to
myself by which in the process of manufacture I render hydrocar-

page_text: bonaceous fluids more pure and of variable specific gravities to fit the
various lamps and other instruments wherein such fluids are used, I have
found it necessary to impart separate colours to these fluids so purified
and adapted to such especial cases, to insure the public that they are
buying fluid hydrocarbon fitting any and all the uses for which such
fluids are intended.
All hydrocarbonaceous fluids of whatever specific gravity or purity
have nearly the same appearance, but as there are certain elements
necessary to the success of pure combustion of such fluids it becomes
necessary to impart a separate colour to each quality of fluid, so that
each can be recognised as the fluid adapted to such especial purpose;
and furthermore, that fluids of my manufacture may be known and
distinguished from all other burning fluids in the market, thereby
insuring the public that the fluids are adapted to and best suited for the
purposes intended. The colour I prefer best suited for my purposes is
derived from the root of the "anchusa avensis," which is known in com-
merce under the name of "alconet root," which imparts to the fluid a
"rose tint;" or I take the common " turmeric" of commerce ("curcuma
longa,") which would impart a yellow tint; or I use indigo, "fera tinc-
toria," or prussate of iron, or any of the blue annalines, by first dissolving
them and then mix them with the hydrocarbon, which imparts a blue
tint; or I change the tint by any vegetable, animal, or mineral colour,
so as to impart the especial tint intended.
I do not confine myself to the precise method or in the especial
material used to impart colour to hydrocarbonaceous fluids as they may
be varied to indicate the true specific gravity as well as the especial use
by a given tint, so that they may be known by the trader and user as
fluids prepared and vended by me or my agents.
Having now described and particularly ascertained the nature of the
said Invention, and the manner in which the same is or may be carried
into effect, I would observe that what I consider to be novel or original,
and therefore claim as new, is the colouring of hydrocarbonaceous fluids
with different tints to indicate their quality and specific gravity as a
trade mark.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Glover in the Great Seal Patent Office
on the 11th September 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
GLOVER, of Ranelagh Road, Pimlico, in the County of Middlesex, Gas
Meter Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of March, in the year of our Lord
One thousand eight hundred and sixty-nine, in the thirty-second year of
Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said George Glover, Her special licence that I, the said
George Glover, my executors, administrators, and assigns, or such others
as I, the said George Glover, 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 "IMPARTING COLOURS TO HYDROCARBONACEOUS FLUIDS,"
a communication to him from abroad by Laslo Chandor, of St. Peters-
burg, in the Empire of Russia, upon the condition (amongst others)
that I, the said George Glover, 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 George Glover, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement:-
The object of this Invention is, that as I have methods known to
myself by which in the process of manufacture I render hydrocar

page_text: bonaceous fluids more pure for burning, and also of variable specific
gravities to fit the various lamps and other instruments wherein such
fluids are used, I have found it necessary to impart separate colours to
these fluids so purified and adapted to such especial cases, to insure the
public that they are buying fluid hydrocarbon fitting any and all the
uses for which such fluids are intended.
All hydrocarbonaceous fluids of whatever specific gravity or purity
have nearly the same appearance, but as there are certain elements
necessary to the success of pure combustion of such fluids it becomes
necessary to impart a separate colour to each quality of fluid, so that
each can be recognised as the fluid adapted to such especial purpose;
and furthermore that fluids of my manufacture may be known and
distinguished from all other burning fluids in the market, thereby
insuring the public that the fluids are adapted to and best suited for the
purposes intended. The colour I prefer best suited for my purposes is
derived from the root of the "anchusa avensis," which is known in
commerce under the name of alconet root, which imparts to the fluid a
"rose tint"; or I take the common "turmeric" of commerce ("cur-
cuma longa,") which would impart a "yellow tint;" or I use indigo
("fera tinctoria,") or prussate of iron, or any of the blue annalines, by
first dissolving them and then mixing them with the hydrocarbon, which
imparts a "blue tint"; or I change the tint by any vegetable, animal,
or mineral colour, so as to impart the especial tint intended.
I do not confine myself to the precise method or in the especial
material used to impart colour to hydrocarbonaceous fluids as they may
be varied to indicate the true specific gravity, as well as the especial use
by a given tint, so that they may be known by the trader and user as
fluids prepared and vended by me or my agents.
Having now described and particularly ascertained the nature of the
said Invention, and the manner in which the same is or may be used or
carried into effect, I would observe that I do not confine myself to the
colouring materials herein specified as they may be varied to suit cir
cumstances, but what I consider novel and original, and therefore claim
as the Invention secured to me by the herein-before in part recited
Letters Patent is, the actual colouring of hydrocarbonaceous fluids to be

page_text: as a trade mark to indicate the quality, specific gravity, and purposes
to which each fluid is best suited.
In witness whereof, I, the said George Glover, have hereunto set
my hand and seal, this Sixth day of September, One thousand
eight hundred and sixty-nine.
Witnessed by
PAUL R. HODGE,
THO. W. WILLIAMS.
GEO. GLOVER. (L.S.)