Year: 1887

page_text: Date of Application, 30th Nov., 1887
Complete Specification Left, 28th Aug., 1888
Complete Specification Accepted, 28th Sept., 1888
I, ETTORE DELBECCHI of Turin, Italy do hereby declare the nature of this invention
to be as follows:-
My invention relates to an improved construction of apparatus for drying grain and
other substances which I will proceed to describe with reference to the accompanying
drawing, in which Fig. 1 shews a side elevation, Fig. 2 a longitudinal section Fig. 3
a sectional plan, and Fig. 4 a cross section of the stove and fan. The apparatus con-
sists of a sheet iron stove A divided by a vertical partition ab, into two compartments,
which communicate through a central circular opening H 1. The one compartment
contains an enclosed furnace F having an opening 0 through which the products of
combustion issue. The other compartment contains a fan V V carried in a side
bearing P and driven by a pulley P¹. Surrounding the bearing P a circular hole is
formed in the side of the stove.
The compartment containing the furnace F communicates with the outer air by
means of the door S provided with a "hit and miss" valve, and also by openings r r.
The other part of the apparatus consists of a casing B divided horizontally by an
iron framing covered by wire gauze M M with small meshes, on which is spread the
grain or other material to be dried.
The compartment of the stove A containing the fan communicates with the space
in the casing B below the wire gauze tray by a pipe G.
The apparatus acts as follows:-
The fan being rotated either by hand or by a motor engine, at a speed of about
220 revolutions a minute, draws the gaseous products of combustion from the furnace F
through the opening O, and at the same time draws in the external air through the
regulated openings of S and through », r, which air becomes heated by contact with
the surface of the furnace chamber, and passes through opening H I into the fan
chamber. The fan also draws in cold air through the opening G L.
The fan in revolving mixes these several currents together and drives the whole
through the pipe G into the casing B underneath the wire gauze tray so that it rises

page_text: through the latter and through the layer of material upon it, thereby effecting the
drying of this.
An
The furnace is charged with fuel through a tube T, and the fuel is lit through an
upper door D, while the air required for combustion enters through the door D
opening closed by a cover U is provided to the fan chamber for allowing the escape of
air and gases when the apparatus is not at work.
A thermometer or pyrometer is provided at X for determining the temperature
of the air passing up through the wire gauze tray, and thereby to enable the degree
of desiccation of the material to be controlled, the attendant being enabled to vary
the temperature of such air by regulating the admission of hot air through H I from
the furnace.
The above described apparatus may also be arranged so as to be portable, as
shewn at Figs. 5, 6 and 7, Figs. 6 and 7 shewing an arrangement with two drying
chambers I and II combined with a single stove apparatus A. In this case the fan
may be driven by hand by means of a pulley Z with crank handle, driving the
pulley P of the fan by a strap as shown at Fig. 7.
The essential feature of this invention consists in the arrangement of the fan pro-
ducing three different currents, one for the hot air supply, one for the cold air supply,
and the third for producing the requisite draught for the furnace, these currents
being mixed together in any desired proportions for producing a current for
drying the material, which is situated upon an open tray so as to be easily inspected.
Dated this 30th day of November 1887.
ABEL & IMRAY,
Agents for the Applicant.

page_text: I, ETTORE DELBECCHI of Turin Italy do hereby declare the nature of this inven
tion 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 an improved construction of apparatus for drying grain and
other substances which I will proceed to described with reference to the drawing
accompanying my Provisional Specification filed 30th November 1887, in which Fig. 1
shews a side elevation. Fig. 2 a longitudinal_section Fig. 3 a sectional plan, and
Fig. 4 a cross section of the stove and fan. The apparatus consists of a sheet iron
stove A divided by a vertical partition ab into two compartments, which communicate
through a central circular opening HI. The one compartment contains an enclosed
furnace F having an opening O through which the products of combustion issue. The
other compartment contains a fan VV carried in a side bearing P and driven by a
pulley P. Surrounding the bearing P a circular hole is formed in the side of the
stove.
The compartment containing the furnace F communicates with the outer air by
means of the door S provided with a "hit and miss" valve, and also by openings r r.
The other part of the apparatus consists of a casing B divided horizontally by an
iron framing covered by wire gauze M M with small meshes, on which is spread the
grain or other material to be dried.
The compartment of the stove A containing the fan communicates with the space in
the casing B below the wire gauze tray by a pipe G.
The apparatus acts as follows:-
The fan being rotated either by hand or by a motor engine at a speed of about
220 revolutions a minute, draws the gaseous products of combustion from the furnace F
through the opening O, and at the same time draws in the external air through the
regulated openings of S and through r, r, which air becomes heated by contact with
the surface of the furnace chamber, and passes through opening H I into the fan
chamber. The fan also draws in cold air through the opening G L.
The fan in revolving mixes these several currents together and drives the whole
through the pipe G into the casing B underneath the wire gauze tray so that it rises
through the latter and through the layer of material upon it, thereby effecting the
driving of this.
The furnace is charged with fuel through a tube T, and this fuel is lit through an
upper door D, while the air required for combustion enters through the door D¹. An
opening closed by a cover U is provided to the fan chamber for allowing the escape of
air and gases when the apparatus is not at work.
A thermometer or pyrometer is provided at X for determining the temperature of
the air passing up through the wire gauze tray, and thereby to enable the degree of
desiccation of the material to be controlled, the attendant being enabled to vary the
temperature of such air by regulating the admission of hot air through H I from the
furnace..

page_text: The above described apparatus may also be arranged so as to be portable, as shown
at Figs. 5, 6 and 7. Figs. 6 and 7 shewing an arrangement with two drying chambers I
and II combined with a single stove apparatus A. In this case the fan may be driven
by hand by means of a pulley Z with crank handle driving the pulley P' of the fan by
a strap as shewn at Fig. 7.
The essential feature of this invention consists in the arrangement of the fan
producing three different currents, one for the hot air supply, one for the cold air
supply and the third for producing the requisite draught for the furnace, these
currents being mixed together in any desired proportions for producing a current
for drying the material, which is situated upon an open tray, so as to be easily
inspected.
Having now particularly described and ascertained the
tion and in what manner the same is to be performed I
claim is :-
nature of this inven-
declare that what I
1. The construction of apparatus for drying grain and other substances wherein the
draught for the heating furnace is produced by means of a fan, so arranged that in
addition to the gaseous production drawn off thereby, it also draws in a quantity of
atmospheric air which is heated by radiation and conduction from the outer surfaces
of the furnace chamber, and a further quantity of fresh air drawn directly from the
outside, such mixture of products of combustion, heated air, and cold air being
propelled by the fan at the desired temperature through the grain or other material to
be dried substantially as herein described.
2. The construction of apparatus for drying grain and other substances consisting
of a casing divided into an upper and a lower compartment by a diaphragm of wire
gauze or perforated metal, on which is spread the material to be dried, heated air
being drawn from a stove by means of a fan which forces the same under pressure
into the lower compartment whence it passes up through the material on the diaphragm,
substantially as herein described with reference to the drawings.
Dated this 27th day of August 1888.
ABEL & IMRAY,
Agents for the Applicant.