An Improved Machine for Separating and Polishing Granular Materials, more particularly applicable for Coffee and Wheat.
Year: 1895

page_text: Date of Application, 10th Oct., 1895-Accepted, 30th Nov., 1895
An Improved Machine for Separating and Polishing Granular
Materials, more particularly applicable for Coffee and Wheat.
A communication by JOSEPH VOTICKY, of Beneschau, near Prague, Bohemia, in
the Empire of Austria, Merchant.
I, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool and 6 Bank Street,
Manchester, both in the County of Lancaster, 118 New Street, Birmingham
in the County of Warwick and 31 High Holborn in the County of Middlesex,
Civil Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention has for its object an improved machine for separating polishing
and cleaning granular materials, more particularly applicable for coffee and wheat.
It performs excellent service in separating coffee of medium quality, which, by
means of this machine, is separated into two sorts, the first of which (the better
sort) receives a very fine polished appearance and is considerably improved in
value, whilst the second or poorer quality obtains also an advantageous selling
vulue.
In the accompanying drawings:
Figure is a side elevation of the improved machine;
Figure 2 is a plan view; and
Figure 3 a section on the line -r of Figure 1.
The machine consists of an iron frame G, having at its upper part a box B,
which is open at the top. The upper edges of the sides of this box B or bars Gi
thereon are a little inclined to one end and carry T-irons or rails s screwed thereon
on which the rollers of a carriage A travel. The bottom of this carriage A is
formed of a sieve S. the meshes of which are smaller than the size of the grains of
the finer quality of the goods which are to be separated. Of course a number of
sieves with various sizes of mesh may be employed in each machine for separating
various kinds of material, which sieves may be changed according to requirements.
The carriage A is connected by means of a pitian rod k with a crank shaft w0
which is set in rotation by revolving a flywheel H, and a reciprocating movement
is thus imparted to the carriage running on the rails s.
The process of separating and polishing the goods is as follows:-
Coffee, wheat or the like is poured into the carriage A and the latter is caused
to reciprocate rapidly on the rails by revolving the flywheel H. The coffee is
consequently vigorously shaken up, the smaller, less valuable, grains falling
through the meshes of the sieve into the box B, whilst the finer, larger, better
quality grains remain on the sieve. By the movement of the carriage the coffee is
shaken up and the grains by friction against one another receive a pleasing polished
appearance.
Both qualities are poured into separate sacks or other suitable receptacles when
the separating is completed.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what 1 claim is :—
An improved separating and polishing or cleaning machine for granular materials,

page_text: more particularly applicable for coffee and wheat, consisting of a carriage (A)
running on the inclined rails (s) of a frame (G) and receiving a reciprocating
movement by means of a pitman rod () from a crank shaft (w), the bottom of said
carriage consisting of a suitable sieve (S), whereby the material of inferior quality
is enused, on the movement of the carriage, to fall through the sieve, whilst the
material of superior and larger grained quality remains lying on the sieve (S), and
by the friction of the grains against one another receives a polished appearance,
substantially as set forth.
Dated this 9th day of October 1895.
WM. P. THOMPSON & Co.,
Agents.