IMPROVEMENTS IN THE MANUFACTURE OF UIL AND IN THE APPARATUS CONNECTED THEREWITH
Year: 1873

page_text: LETTERS PATENT to Marcelin Réné Bouju, Merchant, of No. 82, Boule-
vard Sébastopol, Paris, France, for the Invention of "IMPROVEMENTS
IN THE MANUFACTURE OF UIL AND IN THE APPARATUS CONNECTED THEREWITH.
PROVISIONAL SPECIFICATION left by the said Marcelin Réné Bouju
at the Office of the Commissioners of Patents, with his Petition
on the 8th December 1873.
I, MARCELIN RÉNÉ BOUJU, Merchant, of No. 82, Boulevard Sébastopol,
Paris, France, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF OIL AND IN THE APPARATUS CONNECTED
THEREWITH," to be as follows:-
The object of this Invention is to extract oil from the grain or fruit
of the plant known as the hibiscus esculentum, hibiscus escubentus,
bamieh, or gombo, grown in tropical climates.
When the fruit has arrived at maturity it is gathered and the oil
extracted therefrom by crushing it in a machine consisting of a cylin-
drical envelope of metal or wood, supplied from above by a hopper,

page_text: beneath which are two wheels or crushers arranged horizontally one
above the other, the upper one of which is movable and turns on a
central shaft forming the axis of rotation, and which is driven by
any motive power in communication with a bevil wheel at its upper
extremity.

page_text: give and grant unto me, the said Marcelin Réné Bouju, Her special
licence that I, the said Marcelin Réné Bouju, my executors, adminis-
trators, and assigns, or such others as I, the said Marcelin Réné
Bouju, 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
"IMPROVEMENTS IN THE MANUFACTURE OF OIL AND IN THE APPARATUS CONNECTED
THEREWITH," upon the condition (amongst others) that I, the said
Marcelin Réné Bouju, my executors or administrators, by an instru-
ment in writing under 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 Marcelin Réné Bouju, 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
in and by the following statement :-
-
The object of this Invention is to extract oil from the grain or fruit
of the plant known as the hibiscus esculentum, hibiscus escubentus,
bamieh, or gombo, grown in tropical climates.
When the fruit has arrived at maturity it is gathered and the oil
extracted therefrom by crushing it in a machine, shown in vertical
section by Fig. 1 of the accompanying Drawings, and consists of a cylin-
drical metal envelope E supplied from above by a hopper H, beneath
which are two wheels R, R', or crushers arranged horizontally one above
the other; the upper one R is movable and turns on a central shaft A
forming the axis of rotation, and which is driven by any motive power
in communication with a bevil wheel K at its upper end.
The lower wheel R¹ is fixed and has a circular and conical aperture in
the centre within which cutting blades B are fixed and connected with
3 the shaft.
A moll onl A conduit in communieation with

page_text: the aperture leads the substance almost reduced to a liquid state to a
reservoir at the base of the machine M.
The inner surfaces of these wheels are denticulated for the purpose of
triturating the grain, see Fig. 2, plan.
For hot drawn oil the apparatus employed consists of a circular
rimmed recipient in which a metal wheel turns by means of a shaft in
the centre, receiving rotary motion by any convenient means. This
apparatus is arranged on a stove for heating to the required degree for
drawing out all the oil contained in the grain.
The press for extracting the oil after the crushing is an ordinary metal 1
one, to which heat can be applied. The oil thus obtained is for domestic
or industrial usage, and is more economical in cost.
Having thus described my Invention, what I claim and desire to
secure by Letters Patent is, the mode of extracting oil from the hibiscus
esculentum by means of the apparatus herein described, the principal 1
features of which are the conically arranged blades B working in a
conical aperture in combination with the denticulated or striated
surfaces F, as and for the purposes herein described.
In witness whereof, I, the said Marcelin Réné Bouju, have
hereunto set my hand and seal, this Second day of June, in 2
the year of our Lord One thousand eight hundred and seventy-
four.
MARCELLIN RÉNÉ BOUJU. (L.S.)
E. HÉBRÉ,
82, Boulevd. Sebastopol,
Paris.