An Improved Apparatus for Drying Hops, Fruit, and other Materials.
Year: 1889

page_text: Date of Application, 5th Feb., 1889
Complete Specification Left, 25th Sept., 1889-Accepted, 9th Nov., 1889
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Drying Hops, Fruit, and other
Materials.
1, GEORGE FREDERICK REDFERN, of the firm of G. F. Redfern & Co., the General
Patent Office, No. 4, South Street, Finsbury, in the County of London, Patent
Agents, do hereby declare the nature of this invention (a communication from abroad
by Messieurs Wirth & Co., of 47 Hermannstrasse, Frankfort-on-the-Main, in the
Empire of Germany, Patent Agents) to be as follows:-
This invention relates to apparatus for drying hops, fruit and other materials.
The apparatus comprises a sheet iron cylinder provided with two rings resting on
two pairs of rollers or wheels. To one of the rings is attached a toothed ring into
which a wheel gears for the purpose of revolving the cylinder. One end of the
cylinder has a conical portion which receives the materials to be dried from an
automatic feeder. A current of air is forced through a tube into the conical end of
the apparatus. Inside the cylinler are blades or vanes fixed, at different angles, to its
periphery which blades or vanes serve to spread the materials whilst being dried
evenly in the revolving cylinder, at the same time lifting and forcing them towards
the outlet end of the cylinder, the warm air meanwhile passing through the materials
in the same direction. The lighter or drior the falling materials become the more
they are carried along by the current of air. To prevent them from moving too
quickly towards the outlet end of the cylinder the latter is placed in an inclined
position rising towards the outlet. In this manner the more moist and heavier
materials are kept close to the inlet and in contact with the warmer air until through
the continuous drying action of the air they become lighter when they are carried
forward by the air current. The separation thereby caused of the dry material from
the wet material will be all the more rapid if the angle of inclination of the cylinder
be increased and, as various materials will require to be treated more or less rapidly,
the cylinder can be raised or lowered upon its rollers which are made adjustable for
that purpose. The dried materials fall into a screw conveyor which conducts them
away to any required place.
1
P T "
1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Apparatus for Drying Hops, Fruit, and other
Materials.
1, GEORGE FREDERICK REDFERN, of the firm of G. F. Redfern & Co., the General
Patent Office, No. 4, South Street, Finsbury, in the county of London, Patent
Agents, do hereby declare the nature of this invention (a cominunication from abroad
by Messieurs Wirth & Co., of 47, Hermannstrasse, Frankfort on the Main, in the
Empire of Germany, Patent Agents) and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to apparatus for drying hops, fruit and other materials and
comprises the improvements hereinafter described.
In the accompanying drawing,-
Figure 1 is a longitudinal section; and,
Figure 2 is a cross section of an apparatus constructed according to my invention
for drying hops, fruit and other materials.

page_text: Similar lotters in both the figures indicate similar parts,
The apparatus is constructed of a sheet iron cylinder a provided with two rings b, b³
resting on two pairs of roller- or wheels
To one of the rings is attached
a toothed ring d into which a wheele gears for the purpose of revolving the cylinder a.
One end of the cylinder a has a conical portion which receives the materials to be
dried from any suitable automatic feader of known construction such as g. A current
of air is forced through a tube h into the conical end of the apparatus. Inside the
cylinder a are blades or vanes i, i, i fixed to its periphery at different angles, which
blades or vanes serve to spread the materials, whilst being dried, evenly in the revolving
cylinder, at the same time lifting and forcing them towards the outlet end of the
cylinder in the direction indicated by the arrows in Figure 1. the warm air meanwhile
passing through the materials in the same direction. The lighter or drier the falling
materials become the more they are carried along by the current of air. To prevent
them from moving too quickly towards the outlet en of the cylinder, the latter is
placed in an inclined position rising towards the outlet. In this manner the more
moist and heavier materials are kept close to the inlet and in contact with the warmer
air until through the continuous drying action of the air, they become lighter when
they are carried forward by the air current. The separation thereby caused of the
dry material from the wet material will be all the more rapid if the angle of inclination
of the cylinder be increased and, as various materials will require to be treated more
or less rapidly, the cylinder a can he raised or lowered upon its rollers c, e which are
made adjustable for that purpose. The dried materials fall into a serow conveyor k
which conducts them away to any required place.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
1 claim is :-
(1) The use,
for the purpose of drying hops, fruits and other materials by means
of a hot air current, of apparatus comprising a revolving cylinder provided with
blades attached to its inner periphery and inclined, so that the outlet is higher than
the inlet, the apparatus being so constructed that its inclination can be adjusted,
according to the different materials to be treated, by means of movable rollers, the
combined action of the hot air current and the inclined position of the cylinder serving
to separate the dry materials from the wet materials and to keep the latter back in the
cylinder till dry, while the former materials are carried towards the conveyor k
(2) The improved apparatus for drying hops, fruit and other materials hereinbefore
described and illustrated in the accompanying drawing.
Dated the 25th day of Santambar 1880
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.