IMPROVEMENTS IN APPARATUS FOR SEPARATING SOLUBLE FROM INSOLUBLE MATTERS, FILTERING THE SOLUTIONS, AND, IP WISHED, DISTILLING THESE LATTER OR PARTS. OF THEM
Year: 1867

page_text: PROVISIONAL SPECIFICATION left by Eduard Leitenberger at the Office
of the Commissioners of Patents, with his Petition, on the 11th October
1867.
I, EDUARD LEITENBERGER, of Cosmanos, in the Empire of Austria, Chemist,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR SEPARATING SOLUBLE FROM INSOLUBLE MATTERS, FILTERING THE
SOLUTIONS, AND, IP WISHED, DISTILLING THESE LATTER OR PARTS. OF THEM," to be
as follows:
The Invention relates to improvements in apparatus for separating soluble
from insoluble substances, filtering the solutions obtained therefrom, and, if
required, distilling these latter or parts of them; the apparatus consequently
is applicable for extracting colouring matters from dye woods, madder, or other
similar materials for obtaining tannic or gallic acid from oak bark, nut galls,
or. other materials for extracting sugar from beetroot, sugar cane, or other
saccharine matters, and for other operations of the same kind.
The annexed Drawing shows a longitudinal vertical sectional view of the
apparatus. A is a vessel which may be hermetically closed, and in which are
put the substances from which the soluble parts are to be extracted; a syphon
pipe a provided at one end with a strainer or filtering rose a' connects the
vessel A with another similar one B provided with a double jacket C, in which
steam may be introduced by a pipe c for heating the vessel B, in which latter
is put the water, alcohol, acetic acid, or other solvent or menstruuin to be
made use of for extracting the soluble matters from the materials put in the

page_text: vessel A; by means of the steam in C a sufficient pressure may be got up in B
for forcing the solvent through the pipe a up through the materials in A, after
which by shutting off the steam, the vessel B becoming cooled, a partial
vacuum will be formed in the interior of it, by means of which the obtained
solution will be carried back through the syphon pipe a into the vessel B,
which may be repeated several times in order to increase the strength of the
solution, which at the same time will have received a preparitory filtration
through the rose a', and is then allowed to run off into a trough C, from which
the same is lifted by a pump D into a reservoir E situated at a higher level
than the filtering vessel G, into which latter the solution is conducted after
passing previously through an air chamber F, and is forced up through the
filters 9, 9, after which the filtered solution enters into a trough H, and is by
a pipe allowed to run over a series of hollow inclined shelves J, to be heated
by steam and situated in the still J, the more volatile matters being carried in
a condensing worm N, whereas the less volatile run off by the pipe m into a
trough M. Provision is made to allow of hermetically shutting the vessel A,
B, F, and G, and for discharging them of their contents, and the apparatus
may be made of iron, copper, stoneware, porcelain, or other suitable materials,
according to the nature of the materials to be treated or the solvent to be
made use of.