Improvements in Incubators.
Year: 1892

page_text: Date of Application, 19th May, 1892-Accepted, 2nd July, 1892
COMPLETE SPECIFICATION.
Improvements in Incubators.
I, SAMUEL MANN, of Bellevue Poultry Farm, Bedford, in the County of
Bedford, Poultry Farmer, 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 :-
This invention relates to improvements in incubators and has especial reference
to the construction and arrangement of parts forming the mode and means of
heating the incubator, and of automatically regulating the temperature of the
hatching chamber. Further by this invention a simple means is provided by which
the products of combustion from the lamp or other heater are allowed to escape
without entering the egg chamber.
That this invention may be fully understood reference is had to the accompanying
sheet of drawings which represents in elevation an incubator constructed in
accordance with my invention, a is a tank placed in the incubator formed with a
hollow cylindrical extension b. In this extension b I have a vertical tube c forming
a flue pipe and passing through the incubator from top to bottom and into which
the chimney of the lamp d enters. The tank and extension contain water which is
heated by the passage of the hot air from the lamp upwards into the vertical tube c
and thence through the air tubes e e which lead from the tube c through the tank a
and outwards through the incubator to the atmosphere. In a small chamber on
one side of the vertical tube is a glass tube and above the lamp or other heater, for
the automatic regulation of the temperature I place a glass tube f containing
mercury and ether which upon expansion by the temperature rising above the
required degree causes an inverted tube g placed mouth downwards in tube f to
rise and in so doing lifts rod h connected thereto and thereby raises the valve or
damper i fitted over or upon the top of the vertical tube c.
Thus the heat upon
becoming excessive is immediately reduced by the gases being drawn direct from
the lamp through flue pipe, and out through damper. Upon the fall of temperature
the ether and mercury in contracting cause the damper to be closed.
The extension 6 of the tank a forming a jacket and bringing the water to be
heated directly to and around the burner causes a much greater and more regular
volume of heat to be obtained than in others hitherto in use.
Having now particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed I declare that what I
claim is:
1. In incubators the water tank a provided with extension jacket b, for bringing
the water to be heated directly to and around the lamp or other heating medium,
arranged and constructed substantially as herein described and shewn in the
drawing.
2. In combination with tank a and extension jacket 6 in incubators the flue pipe c
air tubes e and thermo-regulator consisting of container inverted tube g acting on
damper i all substantially as and for the purpose described.
Dated this 19th day of May 1892.
HUGHES, ELI & HUGHES,
76, Chancery Lane, Agents for Applicant.