IMPROVEMENTS IN DEODORISING AND PURIFYING PETROLEUM AND OTHER MINERAL OILS OR SPIRIT
Year: 1875

page_text: LETTERS PATENT to Samuel Ebenezer Johnson, of Ashby-de-la-Zouch,
in the County of Leicester, and Edwin Eli Johnson, of the City of
Manchester, in the County of Lancaster, for the Invention of
"IMPROVEMENTS IN DEODORISING AND PURIFYING PETROLEUM AND OTHER
MINERAL OILS OR SPIRIT."
Sealed the 2nd June 1876, and dated the 8th December 1875.
PROVISIONAL SPECIFICATION left by the said Samuel Ebenezer
Johnson and Edwin Eli Johnson at the Office of the Commissioners
of Patents, with their Petition, on the 8th December 1875.
We, SAMUEL EBENEZER JOHNSON, of Ashby-de-la-Zouch, in the
County of Leicester, and EDWIN ELI JOHNSON, of the City of Man-
chester, in the County of Lancaster, do hereby declare the nature of the
said Invention of "IMPROVEMENTS IN DEODORISING AND PURIFYING PETROLEUM
AND OTHER MINERAL OILS OR SPIRIT," to be as follows:-
The object of this Invention is a simple and inexpensive method of
treating petroleum and other mineral oils or spirit, whereby the same

page_text: shall be deodorised and purified, and consists in subjecting the same to
the action of chlorine gas, and then removing all trace of such gas, as
herein-after described.
In performing our Invention we first introduce chloride of lime into
the cask or other receptacle containing such mineral oil or spirit; this
done we evolve the chlorine gas in the midst of the oil or spirit by the
addition of hydrochloric acid thereto, and either by agitating the
receptacle or by the application of an agitator or stirrer we agitate the
contents of such receptacle so as to bring the whole of the oil or spirit
into intimate contact with the chlorine gas; we then pass the oil or
spirit into another vessel containing slaked lime, which slaked lime
having an affinity for the chlorine gas soon absorbs the same, thereby
removing all objectionable traces of such gas, and leaving the mineral oil
or spirit sufficiently deodorised and purified.
If a further degree of purity is required we afterwards distil the oil or
spirit.
We would have it to be understood that we do not confine ourselves
to the method herein-before described of producing the chlorine gas, as
it will be obvious that any of the well-known methods of producing
such gas may be employed. The gas may be generated in a separate
vessel.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Ebenezer Johnson and Edwin Eli Johnson
in the Great Seal Patent Office on the Sth June 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, SAMUEL 2
EBENEZER JOHNSON, of Ashby-de-la-Zouch, in the County of Leicester,
and EDWIN ELI JOHNSON, of the City of Manchester, in the County of
Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of December, in the year a
of our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said Samuel Ebenezer Johnson and Edwin Eli
Johnson, Her special licence that we, the said Samuel Ebenezer Johnson

page_text: and Edwin Eli Johnson, our executors, administrators, and assigns, or
such others as we, the said Samuel Ebenezer Johnson and Edwin Eli
Johnson, 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 DEODORISING AND PURIFYING PETROLEUM AND OTHER MINERAL
OILS OR SPIRIT," upon the condition (amongst others) that we, the said
Samuel Ebenezer Johnson and Edwin Eli Johnson, our 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 we, the said Samuel Ebenezer Johnson and
Edwin Eli Johnson, do hereby declare the nature of our 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 a simple and inexpensive method of
treating petroleum and other mineral oils or spirit, whereby the same
shall be deodorised and purified, and consists in subjecting the same to
the action of chlorine gas, and then removing all trace of such gas, as
herein-after described.
In performing our Invention we first introduce chloride of lime into
the cask or other receptacle containing such mineral oil or spirit in the
proportion of about 3 ounces of chloride of lime, more or less, to each
gallon of the oil or spirit, according to the degree of its impurity, and
thus we evolve chlorine gas in the midst of the oil or spirit, and if
necessary assist the evolution of the chlorine gas by pouring in hydro-
chloric acid, when either by agitating the receptacle or by the application
of an agitator or stirrer we agitate the contents of such receptacle, so as
to bring the whole of the oil or spirit into intimate contact with the
chlorine gas; we then pass the oil or spirit into another enclosed vessel
containing slaked lime, which having an affinity for the chlorine gas
soon absorbs the same, removing all objectionable traces of such gas,
and leaving the mineral oil or spirit sufficiently deodorised and purified.

page_text: If a further degree of purity or decolorisation is required we afterwards
pass the mineral oil or spirit through charcoal.
We would have it to be understood that we do not confine ourselves
to the method herein-before described of producing the chlorine gas, as
it will be obvious that any of the well-known methods of producing such
gas may be employed. The gas may be generated in a separate vessel,
and then passed through the mineral oil or spirit.
Having thus particularly described and ascertained the nature of this
our said Invention, together with the best methods with which we are
acquainted for carrying the same into practical effect, we wish it to be
understood that we claim, treating petroleum and other mineral oils or
spirit with chlorine gas, as and for the purposes herein-before described.
In witness whereof, I, the said Edwin Eli Johnson, for and on
behalf of myself and the said Samuel Ebenezer Johnson, have
hereunto set my hand and seal, this Seventh day of June, in
the year of our Lord 1876.