The APPLICATION OF A NEW MATERIAL TO THE PRODUCTION OF ILLUMINATING OILS AND SOLID HYDROCARBONS SUITABLE FOR THE MANUFACTURE OF CANDLES AND FOR OTHER PURPOSES" PROVISIONAL SPECIFICATION
Year: 1870

page_text: LETTERS PATENT to Frederick Field, of the Firm of John Charles and
Jolm Field, of Upper Marsh, Lambeth, in the County of Surrey,
and Gustav Siemssen, of No. 11, Fenchurch Buildings, in the City
of London, for the Invention of "The APPLICATION OF A NEW MATERIAL
TO THE PRODUCTION OF ILLUMINATING OILS AND SOLID HYDROCARBONS SUITABLE
FOR THE MANUFACTURE OF CANDLES AND FOR OTHER PURPOSES"
PROVISIONAL SPECIFICATION left by the said Frederick Field and
Gustav Siemssen at the Office of the Commissioners of Patents, with
their Petition, on the 2nd April 1870.
We, FREDERICK FIELD, of the Firm of John Charles and John Field,
of Upper Marsh, Lambeth, in the County of Surrey, and GUSTAV
SIEMSSEN, of No. 11, Fenchurch Buildings, in the City of London, do
hereby declare the nature of the said Invention for "THE APPLICATION OF
A NEW MATERIAL TO THE PRODUCTION OF ILLUMINATING OILS AND SOLID HYDRO

page_text: CARBONS SUITABLE FOR THE MANUFACTURE OF CANDLES AND FOR OTHER PURFOSES,"
to be as follows:
―
Our Invention consists in the application of a mineral or substance
known as "ozokerite," found principally in Austria, Moldavia, the
Caucasus, and near the Caspian Sea, to the production of illuminating
oils and of solid hydrocarbons more particularly adapted to the manu-
facture of candles of a high melting point, but which may also be
employed for any other purposes to which other hydrocarbons are applied.
For this purpose we distill the raw material, thereby obtaining an oilish
distillate, the solid and liquid constituent parts of which are then
separated by pressure and are then refined by any of the processes usually
adopted in the treatment of other bydrocarbons.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Frederick Field and Gustav Sicmssen in the Great
Scal Patent Office on the 30th September 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, FREDERICK
FIELD, of the Firm of John Charles and John Field, of Upper Marsh,
Lambeth, in the County of Surrey, and GUSTAV SIEMSSEN, of No. 11,
Fenchurch Buildings, in the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of April, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Frederick Field and Gustav Siemssen,
Her special licence that wc, the said Frederick Field and Gustav
Siemssen, our executors, administrators, and assigns, or such others as
we, the said Frederick Field and Gustav Siemssen, our executors, adminis-
trators, 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 "THE APPLICATION OF A NEW
MATERIAL TO THE PRODUCTION OF ILLUMINATING OILS AND SOLID HYDROCARBONG

page_text: SUITABLE FOR THE MANUFACTURE OF CANDLES AND FOR OTHER PURPOSES," upon the
condition (amongst others) that we, the said Frederick Field and Gustar
Siemssen, our executors or administrators, by an instrument in writing
under our or their hands and scals, or under the hand and seal of one of
us or them, 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 Frederick Field and Gustav
Siemssen, 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:
Our Invention consists in the application of a mineral or substance
known as Сс
ozokerit," found hitherto principally in Austria, Moldavia,
the Caucasus, and near the Caspian Sea, to the production of illuminating
oils of a high firing point, and of solid hydrocarbons more particularly
adapted to tho manufacture of candles of a high melting point, but
which may also be employed for any other purposes to which other
hydrocarbons are applied. For this purpose we distil the raw material
by fire heat alone or by superheated steam and fire heat, either con-
secutively or combined, therby obtaining an oilish distillate, the solid
and liquid constituent parts of which are then separated by pressure.
The pressed solid material is then purified by mixing and stirring with
sulphuric acid when melted; after standing for some time in order to effect
its complete separation from the acid the supernatant melted material
is carefully decanted off and thoroughly washed with hot water. The
water having been removed the material is repeatedly filtered through
animal charcoal until the requisito degree of whiteness is attained.
Or in place of the above process the material is repeatedly mixed with
naptha and pressed. The small portion of naptha remaining in the
pressed cake is removed by the introduction of free steam until no more
odour is perceptible. The residue is then filtered through animal
charcoal.
We do not confine ourselves to the use of charcoal in all cases,
but sometimes also employ fuller's earth as the purifying medium,

page_text: according to the process described in the Specification to Sterry &
other's Patent No. 610, of 186S.
The oily portions which have been removed by pressure are acidified
with sulphuric acid, are redistilled, and treated with alkaline ley.
Having thus described the nature of our Invention, and in what
manner the same is to be performed, what we claim as the Invention
secured to us under the herein-before in part recited Letters Patent is,
the application of the mineral or substance known as "ozokerit" to the
production of oils and solid hydrocarbons, in the manner substantially
as herein-before set forth.
In witness whercof, we, the said Frederick Field and Gustav
Siemssen, have hereunto set our hands and seals, this Thirtictlı
day of September, in the year of our Lord One thousand cight
hundred and seventy.
FREDERICK FIELD. (L.S.)
GUSTAV SIEMSSEN.. (L.S.)