Improvements in Incubators.
Year: 1889

page_text: Date of Application, 19th June, 1889
Complete Specification Left, 18th Mar., 1890-Accepted, 19th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Incubators.
I, CHARLES ALLAN JONES of Hatherley Works Gloucester Manufacturer do hereby
declare the nature of this invention to be as follows:-
--
An Incubator consisting of a shallow box with a solid or closed bottom and a well
fitting lid without any holes or perforations in either of them. Through the bottom
of the box a tube passes which has its lower end extended in the form of a cone & so
arranged as to collect the heated & damped air supplied by the lamp or stove below
as well as a certain proportion of cool outside air thus increasing the volume and
reducing the intensity of the heat.
An outside casing entirely surrounds the box so as to form a narrow vertical
chamber which being open at the top and connected with the interior box by means
of a number of holes in every side of the box near the bottom forms a flue. Around
the tube before referred to and at some distance from it a chamber is constructed
which is secured to the bottom of the box & extends upwards to within a short
distance of the lid. Between this last mentioned chamber and the sides of the box
the whole space is occupied by openwork or perforated trays on which the eggs are
placed so that the heated air from the tube coming out from the top of the centre
chamber passes downwards between and through the eggs and trays and is drawn
through the holes and into the side flues before described. A secondary circulation
of the air in the box is also provided for by fixing the central chamber around the
tube with spaces between it and the bottom of the box. To facilitate the turning of
the eggs the trays are constructed on a slope with rolling ways upon which the eggs
are placed in parallel rows and by removing the bottom egg all the others in that
row rotate by gravity and the bottom egg which has been removed is replaced at the
top of the row.
The lamp or stove which prefer to use is that described in my provisional
specification dated 24th April 1889 and numbered 6838. The admission of heated
air into the incubator or box is regulated or controlled by means of a valve working
in the conical end of the tube and actuated by any suitable thermostat so arranged
that by raising the valve it diminishes or shuts off the supply and by lowering it
increases the same.
In the lamp or stove above referred to all the products of combustion are carried
off by means of a flue or flues which are so arranged as to render it impossible for
any portion of them to pass into the incubator through the tube, they however
collect underneath the bottom of the incubator & keep it warm, and eventually
pass away up the side flues of the box which are left open at the bottom for this
purpose.
The lower portion of the box or incubator underneath the egg trays can with
advantage be used as a drying box for the chickens when hatched and in order
to obtain access to it a door or doors can be made in one or more of the sides of the
box.
Dated this Eighteenth day of June 1889.

page_text: F
COMPLETE SPECIFICATION.
Improvements in Incubators.
I CHARLES ALLAN JONES of Hatherley Works, Gloucester, Manufacturer 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:
An incubator consisting of a shallow box as shown in Figures 1 & 2 of the
accompanying drawings with a solid or closed bottom and a well fitting lid without
any holes or perforations in either of them.
Through the bottom of the box a tube A passes which has its lower end extended
in the form of a cone & so arranged as to collect the heated & damped air supplied
by the lamp or stove B as well as a certain proportion of cool outside air thus
increasing the volume and reducing the intensity of the heat. An outside casing
entirely surrounds the box so as to form a narrow vertical chamber C which being
open at the top & connected with the interior of the box by means of a number of
holes or slots D on every side of the box near the bottom forms a flue. Around the
tube A and at some distance from it a chamber E is constructed which is secured to
the bottom of the box and extends upwards to within a short distance of the lid.
The space between this chamber E and the sides of the box is occupied by the
trays F on which the eggs are placed so that the heated air from the tube A coming
out at the top of the chamber E passes downwards between & over the eggs and is
drawn through the holes or slots D into the side flues C. A secondary circulation
of the air in the box can also be provided for by making the central chamber with
spaces G as shown open at the bottom & top. To facilitate the turning of the eggs,
the trays are placed on a slope with rolling ways upon which the eggs are placed in
.parallel rows and by removing the bottom egg all the others in that row rotate by
gravity
& the egg which has been removed is put back at the top of the row. The
lamp or stove which I prefer to use is that described in my Patent Specification
dated 24th April 1889 & numbered 6838 which admits only pure air into the
incubator in consequence of which the chickens can be kept in the incubator for any
length of time, in fact when the egg trays are removed it makes an excellent chicken
rearer. The admission of heated air into the incubator or box is regulated or con-
trolled by means of a valve H actuated by any suitable thermostat, a balance
thermometer pivoted slightly below its centre of gravity being the one I prefer.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is,
1. The combination of parts forming the incubator or box substantially as herein-
before described with reference to the accompanying drawings.
2. In incubators or chicken rearers the use of a box with solid bottom & top
and exit holes or slots in the sides in combination with the external casing forming
a flue substantially as hereinbefore described with reference to the accompanying
drawings.
3. In incubators the use of inclined rolling ways for facilitating turning of the
eggs as herein before described.
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