Improvements in the Method of Heating and Regulating the Temperature of Incubators, Foster Mothers, or other similar Articles.
Year: 1886

page_text: Date of Application, 10th Mar., 1886.
Complete Left, 10th Dec., 1886.
Complete Accepted, 11th Jan., 1887.
Improvements in the Method of Heating and Regulating the
Temperature of Incubators, Foster Mothers, or other similar
Articles.
Alfred John TyLER "Oldbury" Underhill Road, Dulwich, in the County of
Surrey, Secretary, do hereby declare the nature of this invention to be as follows:-
The object of this Invention is the construction of a heater or warming receptacle,
designed more particularly for heating, Incubators, Foster Mothers, foot warmers,
garden frames, or the like in which a uniform warmth is required to be diffused at a
temperature which can be determined.
When carrying my Invention into practice I construct an iron or earthenware
receptacle provided with a false bottom, which may be a perforated plate or metallic
grid, valves for the admission and emission of air are made in the front and back
plates of the receptacle, which can be arranged for regulating the circulation of a
greater or less quantity of air through the receptacle. When the heater is in use a
prepared hydrogenated charcoal brick or block is placed in the receptacle on the grid.
The block is then ignited and the receptacle closed, the air being regulated by the
valves so that a slow rate of combustion will take place, and will whilst burning
diffuse heat in a manner which will maintain a uniform temperature.
THOMAS WRIGLEY,
36, High Holborn, W.C.,
Agent to the Applicant.

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drawer in the receptacle c. Air is admitted through the perforations to the interior
of the receptacle, when a slow rate of combustion takes places until the "briquette
is wholly consumed, during which time a radiating warmth is diffused through the
whole of the interior of the heater, and thus supplies to the bottom thereof the heat
necessary for the rearing of the chicks.
When this charcoal heater is employed for diffusing warmth to the interior of an
Incubator I prefer to immerse the heater in a water chamber contained in the interior
of the Incubator for this purpose I form in the water space of the chamber a cylin-
drical tube opening outward at both ends and into this tube I place the drawer e
containing the heated "briquette," the entrance of the cylindrical tube being then
closed in with a rotary valve similar to that shewn at Fig. 3 by this means or by
increasing or diminishing the size of the "briquette" used the heat diffused to the
interior of the Incubator through the medium of the water chamber is regulated so as
to maintain an even temperature.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed, I declare that what I claim is :-
The novel construction, employment and adaptation to the heating of an Incubator
or Foster-mother for hatching or rearing chickens of a receptacle containing a heated
hydrogenated charcoal briquette in the manner and for the purpose substantially as
described herein, and shewn in the drawings.
THOMAS WRIGLEY,
36, High Holborn, W.C.,
Agent to Applicant.