An Improved Incubator and Rearer of Birds.
Year: 1894

page_text: Date of Application, 31st May, 1894
Complete Specification Left, 28th Feb., 1895-Accepted, 20th Apr., 1895
PROVISIONAL SPECIFICATION.
An Improved Incubator and Rearer of Birds.
JOHN GEORGE GREEN of The Lodge Farm, Fretherne, Stonehouse, Gloucester-
shire, Gentleman and JOHANNES BLUM of 34 Pichelsdorferstrasse Spandau in the
Empire of Germany Engineer, do hereby declare the nature of this invention to be
as follows:-
The apparatus is constructed of brick or some other substance which serves to
retain heat. It is traversed by numerous flues through which the hot gaseous
products of combustion from a stove or lamp pass. The incubation chamber is
situated between these flues. Within this chamber is placed a vessel containing
water and from this strips of felt or some other porous substance pass along the
roof of the chamber by this means the proper degree of moisture is maintained..
Placed in the incubating chamber is also a tube closed at one end and terminating
at the other in a U-tube which contains mercury, oil, or some other suitable liquid
for supporting a float which is connected by means of a chain and pulley or some
other suitable appliance with a door, which door will open and admit cooler air
when the temperature in the incubator exceeds certain limits. The rearing
chamber is at the top of the apparatus through this also a flue passes maintaining
in the chamber that degree of temperature which would be given by the mother
bird if the young were reared naturally.
Datod this 30th day of May 1894.
JOHN GEORGE GREEN.
JOHANNES BLUM.
and UI DI
We, JOHN GEORGE GREEN, of The Lodge Farm, Fretherne, Stonehouse,
Gloucestershire, Gentleman, and JOHANNES BLUM, of 34 Pichelsdorferstrasse,
Spandau, in the Empire of Germany, 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 :-
The apparatus is constructed of brick or some other substance which serves to
retain heat. It is traversed by numerous flues through which the hot gaseous
products of combustion from a stove or lamp pass. The incubation chamber is
situated between these flues. Within this chamber is placed a vessel containing
water and from this strips of felt or some other porous substance pass along the
roof of the chamber, by this means the proper degree of moisture is maintained.
Placed in the incubating chamber is also a tube closed at one end and terminating
at the other in a U-tube which contains mercury, oil, or some other suitable liquid
for supporting a float which is connected by means of a chain and pulley or some
other suitable appliance with a door, which door will open and admit cooler air
when the temperature in the incubator exceeds certain limits. The rearing
chamber is at the top of the apparatus, through this also a flue passes maintaining
in the chamber that degree of temperature which would be given by the mother
bird if the young were reared naturally.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a transverse vertical section of an apparatus constructed according to
this invention.
Figure 2 is a longitudinal vertical section, Figure 3 a horizontal section, and
Figure 4 a perspective view of the exterior.
a is the incubating chamber, the rearing chamber, the stove by which the
apparatus is heated, and d is its flue. When the apparatus is at work the products
of combustion pass by the flue and branch flues e e to the flues ff and thence by
passages gg. flues hh, passages jj, flue k pipe and flue m to the chimney n.
When starting the apparatus however the products of combustion pass "directly
from the flued to the chimney, the damper o being opened to allow of this. The
various flues are provided with cleaning doors as shown. In the incubating
chamber "l, is a coil of pipes p containing air and closed at one end leading at the
other end into the bent tube filled with mercury. r is a float on the mercury
which is connected by a chain s to the door t. When the temperature of the
incubator exceeds the proper limit the expansion of the air in the coil p causes the
float to rise allowing the door t to open by its own weight so adimitting cold
external air beneath the perforated plate u on which the eggs rest.
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. The combination with an incubating chamber of a thermostat operating a door
by which cold external air is admitted beneath the eggs when the temperature rises
too high substantially as described.
2. The combination with an incubating chamber of a rearing chamber at the top
having a horizontal flue passing through it substantially as described.
3. The combination of the incubating chamber a,
coil P, tube g, float r, door t
and perforated plate u substantially as described and shown in the drawings.
4. A combined incubator and rearer substantially as described and shown in the
drawings.
Bated this 20th day
T
UL TCDI UMI Y ONDA
atce CHIODI UY ULT COT uaTY TONDA
J. G. GREEN,
JOHANNES BLUM,
By Carpmael & Co.,
Agents for the Applicants.