Improvements in Incubators.
Year: 1893

page_text: Date of Application, 4th Oct., 1893
Complete Specification Left, 3rd July, 1894-Accepted, 4th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Incubators.
We, WILLIAM WATSON GREENWOOD, of 48 Tavistock Street, Bedford,
Poultry Appliance Manufacturer, and GEORGE PARKER, of 46 Prebend Street,.
Bedford, Foreman, do hereby declare the nature of this invention to be as follows:-
In the Specification of a Patent granted to Samuel Mann, dated the 1st day of
May 1888, No. 6420, an incubator is described consisting of a case having near its.
top a chamber heated by the products of combustion from a lamp which are
conducted from a vertical flue through two horizontal pipes in the chamber holes-
being provided at the bottom of the chamber to allow the heated air to escape.
According to this invention we dispense with the horizontal tubes and the holes,.
the products of combustion entering the chamber itself by the central flue and
escaping from it by four or other number of vertical pipes preferably at the corners.
of the chamber and passing to the air through the top of the case.
The central
flue is covered with asbestos or other non-conducting material. At the bottom of
the case we have tanks of water beneath the egg trays; these we cover with flannel
and admit air to them by vertical pipes passing through the bottom of the case
and up through the tanks delivering the air just above the water level and beneath
Holes are made
the flannel, in this way we obtain a very even diffusion of the air.
in each side of the case under the hot air chamber for the escape of the air and.
means are provided for regulating the heat as is usual.
Dated this 3rd day of October 1893.
W. W. GREENWOOD.
G. PARKER.
COMPLETE SPECIFICATION.
Improvements in Incubators.
We, WILLIAM WATSON GREENWOOD, of 48 Tavistock Street, Bedford,.
Poultry Appliance Manufacturer, and GEORGE PARKER, of 46 Prebend Street,
Bedford, Foreman, 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 :-
In the Specification of a Patent granted to Samuel Mann, dated the 1st day of
May 1888, No. 6420, an incubator is described consisting of a case having near its
top a chamber heated by the products of combustion from a lamp which are
conducted from a vertical flue through two horizontal pipes in the chamber holes.
being provided at the bottom of the chamber to allow the heated air to escape.
According to this invention we dispense with the horizontal tubes and the holes,
the products of combustion entering the chamber itself by the central flue and
escaping from it by four or other number of vertical pipes preferably at the corners
The central
of the chamber and passing to the air through the top of the case.
flue is covered with asbestos or other non-conducting material. At the bottom of
the case we have tanks of water beneath the egg trays; these we cover with flannel
and admit air to them by vertical pipes passing through the bottom of the case
and up through the tanks delivering the air just above the water level and beneath
the flannel, in this way we obtain a very even diffusion of the air. Holes are made
'' '
27

page_text: in each side of the case under the hot air chamber for the escape of the air and
means are provided for regulating the heat as is usual.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a front elevation, Figure 2 a transverse section and Figure 3 a
longitudinal section of an incubator constructed according to this invention.
a is the outer case of stout wood or other non-conducting material its door a¹
being hinged at the bottom and provided with windows a². b is a metal hot air
chamber the space c between its top and sides and the case a being filled with
sawdust. d is a central flue leading the products of combination of the lamp e into
the chamber 6 from whence they escape by the four pipes fat the corners of the
chamber b thus ensuring an equal temperature in it. The flue d is surrounded by
a casing d' covered with asbestos cloth. 9 is a chimney having a deflector g' at its
lower end, normally this chimney is closed by the plate or damper / resting on its
top but if the temperature inside the apparatus becomes excessive the damper is
lifted by the heat regulator j of ordinary construction and the products of combus-
tion then pass out through the chimney. k are the egg trays their bottoms being
formed of sheets k¹ of perforated zinc. are the water trays having vertical air
pipes through them which carry caps 1. m are frames standing in the water
trays and supporting pieces of wire netting m' covered with flannel or other fabric.
Air enters the case a by the holes at the bottom and passes up the pipes l' over
the surface of the water in the trays through the flannel m' amongst the eggs and
escapes through the holes o in the sides of the case a beneath the chamber b, by
this means a very even diffusion of the air is obtained. It will be observed that
when the door af is open the egg and water trays can be pulled out independently
of each other and that when it is closed the eggs can be seen through the
windows a².
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. Incubators heated by a closed chamber above the eggs and receiving the
products of combustion from a lamp or other source substantially as described.
2. The chamber b with its inlet and outlets substantially as described.
3. Incubators having independent egg and water trays substantially as described.
4. The water trays with their air tubes and coverings substantially as described.
5. Incubators substantially as described and shown in the drawings.
Dated this 20th day of June 1901
W. W. GREENWOOD.
G. PARKER.