APPARATUS FOR DRYING TEA, GRAIN AND OTHER PRODUCE OR LOOSE MATERIALS to be as follows
Year: 1885

page_text: I, GEORGE GREIG, of Harvieston in the County of Kincardine, North Britain,.
Engineer, do hereby declare the nature of my invention for "APPARATUS FOR
DRYING TEA, GRAIN
AND OTHER PRODUCE OR LOOSE MATERIALS to be as
follows:-
"
My invention relates to apparatus for drying materials such as tea, grain, wool
and generally materials of a kind that can be readily distributed over sieves or
screens so as to have a current of air passed through them. On each side of a
central chamber into which air is blown by a fan, I arrange a number of sieves or
screens in tiers above each other, each screen being fitted to draw outwards like
a drawer. I divide the space between each screen and the next above it by a
partition which slopes upwards from the central chamber. Thus, the screens being
charged with the produce or material that is to be dried, the air passing from the
central chamber above each of the upwardly sloping partitions is directed through
the screen above it and after passing through the material on the screen, is directed
outwards by the next higher partition.
Obviously, instead of blowing air into the central chamber, air may be drawn
from it, the current being thus reversed. In order to stop the current of air
between any two of the partitions when the screen between these is withdrawn,
I hang in the central chamber in front of the air passage under each screen a flap
or valve which when the screen is in position, is held open by a bracket attached
to the screen frame, allowing the air current to pass through the screen, but when
the screen is withdrawn the flap or valve drops closing the access for air from the
central chamber to the space whence the screen is withdrawn. When the material
to be dried is of a very light character so that it might be blown away by the air
current, I slope the partitions in the opposite way so that the current is directed
down through the material on the screen.
The air may be heated or chemically dried by any suitable apparatus.
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: Apparatus for Drying Tea, Grain, and other Produce or Loose
Materials.
I, GEORGE GREIG of Harvieston in the County of Kincardine, North Britain,
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 :—
My invention relates to apparatus for drying materials such as tea, grain, wool
and generally materials of a kind that can be readily distributed over sieves or
screens, so as to have a current of air passed through them. On each side of a
central chamber into which air is blown by a fan, I arrange a number of sieves or
screens in tiers above each other, each screen being fitted to draw outwards like
a drawer. I divide the space between each screen and the next above it by a
partition which slopes upwards from the central chamber. Thus, the screens being
charged with the produce or material that is to be dried, the air passing from the
central chamber above each of the upwardly sloping partitions is directed through
the screen above it and after passing through the material on the screen, is directed
outwards by the next higher partition.
Obviously, instead of blowing air into the central chamber, air may be drawn
from it, the current being thus reversed. In order to stop the current of air
between any two of the partitions when the screen between these is withdrawn,
I hang in the central chamber in front of the air passage under each screen a flap
or valve which when the screen is in position, is held open by a bracket attached
to the screen frame, allowing the air current to pass through the screen, but, when
the screen is withdrawn, the flap or valve drops closing the access for air from the
When the material
central chamber to the space whence the screen is withdrawn.
to be dried is of a very light character so that it might be blown away by the air
current, I slope the partitions in the opposite way so that the current is directed
down through the material on the screen.
The air may be heated or chemically dried by any suitable apparatus,
Fig. 1 of the accompanying drawings is a vertical section of drying apparatus
according to my invention, Fig. 2 is an external end view shewn to a reduced
scale. On each side of a central chamber A, into which air that may be warmed
or dried is blown by a fan or otherwise, there are arranged tiers of drawers C
which can be drawn backwards by handles J as indicated by the dotted lines J¹ D¹
in Fig. 1. Each drawer C has a perforated or network bottom, and may have a
similar cover, and contains the materials to be dried. Between each drawer and
the next above it there is a partition E that can be turned on an axis F by an
external lever G as shewn in Fig. 2. In front of each drawer C hangs a flap B
which is held open by a nose piece D projecting from the drawer C when the
drawer is in its place. When the drawer is pulled back as indicated at J¹ D¹ the
flap B in front of it drops as indicated by B¹, closing the air passage. As the
uppermost flaps B2 are not acted on by any drawer C they may be opened by cords
with handles N. According as the partitions E are turned to the one attitude

page_text: shewn on the left side of Fig. 1 or to the other shewn on the right side, the air
currents from A are caused to pass upwards through the material in the drawers C
as indicated by the arrow L, or downwards as indicated by the arrow M. Instead
of blowing air into A, air may be exhausted from A, or air may be blown into
or exhausted from the spaces external to the apparatus.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
The construction of drying apparatus, substantially as herein described with
reference to the accompanying drawings.
Dated this
day of December 1885.
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.