IMPROVE- MENTS IN THE DEODOURIZING OF CRUDE ROCK OR MINERAL OIL, AND IN THE PREPARATION OF LUBRICATING OIL THEREPROM
Year: 1866

page_text: LETTERS PATENT to John Henry Johnson, of 47, Lincoln's Inn Fields, in
the County of Middlesex, Gentleman, for the Invention of "IMPROVE-
MENTS IN THE DEODOURIZING OF CRUDE ROCK OR MINERAL OIL, AND IN THE
PREPARATION OF LUBRICATING OIL THEREPROM."-A communication from
abroad by James Mott, Farmer, and George Cowles, Merchant, both of.
Lindsay, in the Province of Canada West.
Sealed the 20th November 1866, and dated the 81st May 1866.
PROVISIONAL SPECIFICATION left by the said John Henry Johnson at
the Office of the Commissioners of Patents, with his Petition, on the
31st May 1866.
I, JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of
Middlesex, Gentleman, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE DEODOURIZING OP CRUDE ROCK OR MINERAL OIL, AND IN
THE PREPARATION OF LUBRICATING OIL THEREPROM," a communication to me from
abroad by James Mott, Farmer, and George Cowles, Merchant, both of
Lindsay, in the Province of Canada. West, to be as follows:-
This Invention consists in evaporating the crude oil by the application of
steam or other heat directly to the boiler containing the oil until the required.
specific gravity is obtained, which will vary with the different descriptions of
oils operated upon. To this concentrated oil are added common salt or
chloride of sodium, lime, nitrate of potash or nitrate of soda, potash or soda.

page_text: in any suitable proportions, according to the amount of sulphur and impurities
contained in the oil; but in practice the following proportions to one gallon of
treated oil have been found in most cases to give a good result, viz.:-.
Common salt or chloride of sodium
Lime
Nitrate of potash or nitrate of soda
Potash or soda
5 ozs.
5
1
"
"
,,
The oil with these ingredients added thereto is then to be submitted to the
action of heat until it attains the desired consistency or specific gravity for
lubricating purposes when it will be found to be thoroughly deodourized and
cleansed from all impurities.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Henry Johnson in the Great Seal Patent Office on
the 30th November 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Jonn
HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of May, in the year of our Lord One
thousand eight hundred and sixty-six, in the twenty-ninth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
John Henry Johnson, Her special license that I, the said John Henry John-
son, my executors, administrators, and assigns, or such others as I, the said
John Henry Johnson, my executors, administrators, or 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 "IMPROVE-
MENTS IN THE DEODOURIZING OF CRUDE ROCK OR MINERAL OIL, AND IN THE
PREPARATION OF LUBRICATING OIL THEREPROM," a communication to meo from
abroad by James Mott, Farmer, and George Cowles, Merchant, both of
Lindsay, in the Province of Canada West, upon the condition (amongst
others) that I, the said John Henry Johnson, my executors or administrators,
by an instrument in writing under my hand and seal, 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

page_text: 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 John Henry Johnson, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, that is to say :-
The said Invention consists in first reducing the crude oil by evaporation
by the application of steam or other beat directly to the boiler containing the
oil until the required specific gravity is obtained, which will vary with the
different descriptions of oils operated upon. To this concentrated oil are
added common salt or chloride of sodium, lime, nitrate of potash or nitrate of
soda, potash or soda in any suitable proportions, according to the amount of
sulphur and impurities contained in the oil; but in practice the following
proportions to one gallon of treated oil have been found in most cases to give
a good result, viz. :-
Common salt or chloride of sodium
Lime
-
-
Nitrate of potash or nitrate of soda
Potash or soda
-
-
5
OzS.
-
5 ozs.
1 ozs.
ozs.
The oil with these ingredients added thereto is then to be submitted to tho
action of heat until it attains the desired consistency or specific gravity for
lubricating purposes, when it will be found to be thoroughly deodourized and
cleansed from all impurities.
Having now described and particularly ascertained the nature of the said
Invention, and the manner in which the saine is or may be used or carried
into effect, I would observe, in conclusion, that what I consider to be novel
and original, and therefore claim as the Invention secured to me by the
bercin-before in part recited Letters Patent is, the herein-before described
process for preparing lubricating oil from crude rock or mineral oils, and tho
deodourizing of the same by the application of heat and the employment of
the chemical ingredients herein-before described.
In witness whereof, I, the said John Henry Johnson, have hereunto set
my haud and seal, this Twenty-ninth day of November, One thousand
eight hundred and sixty-six.