APPARATUS TO BE USED IN THE OBTAINMENT OF OIL FROM SEEDS OR OTHER SUBSTANCES
Year: 1878

page_text: PROVISIONAL SPECIFICATION left by Isaac Pearson at the Office of the
Commissioners of Patents on the 9th December 1878.
.
ISAAC PEARSON, of the Firm of Pearson, Beckitt, and Company, of Glasgow, in
"IMPROVEMENTS IN
the County of Lanark, North Britain, Seed Crushers.
APPARATUS TO BE USED IN THE OBTAINMENT OF OIL FROM SEEDS OR OTHER
SUBSTANCES."
This Invention relates to the part of the processes concerned in the obtainment
of oil from seeds or other substances in which the seed or other meal after having
undergone a steaming or preparatory treatment has to be transferred from the "kettle"
or preparing apparatus to apparatus in which it is formed into cakes, and in which
it may be wrapped in bagging or cloth in the usual way ready for being introduced
into the oil press; and the object of the Invention is to secure an improved and
more uniform action of the apparatus with a decreased expenditure of time and
labor.
In carrying out the Invention a turning table or frame is provided for receiving
the meal from the kettle, and is placed and fitted so that a part of its top surface is
always in contact with the under surface of a part of the kettle bottom, in which
latter part the discharge outlet from the kettle is formed. The turning table is
formed with three (or other convenient number of) cavities of a shape similar to
that of the kettle outlet and to that of the moulds in which the cakes are formed,
and these cavities are brought each under the kettle outlet in succession by an
intermittent turning movement of the table. In the turning table there are formed
at the bottom of each cavity guides to receive in each case a tray or mould plate,
which when in position occupies the bottom of the cavity. Each tray or mould
plate is formed with shallow sides and an end, giving a depth between them of
about the intended thickness of the cake when compressed ready for the press, but
when each tray is in its place in the turning table the total depth of the cavity,
including that of the tray, is such as to measure the quantity of meal for forming a
cake with the meal in the comparatively loose state in which it falls through the
kettle outlet. It is one advantage of the improved apparatus that, owing to the
kettle outlet being [larger in horizontal area than the outlet as heretofore made,

page_text: whilst the cavity in the receptacle is less deep than heretofore, it is only the part
of the meal which is close to the bottom of the kettle, and which is all completely
and uniformly steamed,. that falls out, and it is not mixed as formerly with
meal which has fallen from a higher part of the kettle, and is less completely
prepared.
At each movement of the turning table one cavity to which a tray or mould
plate has been adjusted passes in under the kettle outlet, whilst the cavity which has
just been under the outlet and has got filled passes round from under the kettle to
a position where a plunger or piston is made to descend to compress the meal down
so as to be all contained in the tray or mould plate. At the same time the cavity
which was just before under the plunger is carried round to a position where the
tray is drawn out with the compressed meal upon it. An empty tray is then slid
in beneath the cavity from which the full one has been removed, so as to be ready
to pass round under the kettle at the next movement of the table.