AN IMPROVED INCUBATOR OR APPARATUS FOR HATCHING EGGS, AND FOR REARING THE YOUNG WHEN HATCHED
Year: 1871

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PROVISIONAL SPECIFICATION left by the said Bristow Hunt at the
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10.197
Office of the Commissioners, of Patents, with his Petition, on the
12th December 1871.
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THE
I, BRISTOW HUNT, of No. 1, Serle Street, Lincoln's Inn, in the County
5 of Middlesex, Gentleman, do hereby declare the nature of the said.
Invention for "AN IMPROVED INCUBATOR OR APPARATUS FOR HATCHING EGGS,
AND FOR REARING THE YOUNG WHEN HATCHED," (a communication to me
from abroad by James Stone, a person resident in Ceylon), to be as
follows:
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This Invention relates to an improved incubator or apparatus, of,

page_text: simple and inexpensive construction for hatching eggs, and also for
rearing the young, when hatched.
The incubator is constructed as follows: It is composed of two boxes
placed one within another in such a manner that there will be a clear
space left at every part between the two boxes (say of about one inch),
which space is filled with a suitable non-conductor of heat. . The lower
part of the inner box contains a metal vessel which is filled with heated
liquid, such as hot water (say) every twelve hours. Above this is
placed a tray to contain the eggs for incubation. The heat is graduated
and air is admitted thereto as required by means of a perforated lid
capable of being adjusted over a grating or perforations. at the top of the
outer box.
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That part of the Invention relating to rearing the young when
hatched, which I call "the mother," is constructed as above described,
save that the vessel for the heated liquid is placed at the upper part of 1
the box, so as to leave a sufficient space below to admit the young to
warmth. The liquid is. admitted to and drawn from the apparatus by
pipes and cocks suitably arranged for such purposes.
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The apparatus as above constructed.[requires no,care or watching
excepting to empty and supply the vessel with the heated liquid.
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Tumbadaki duta
PINT
WHEREAS Her most Excellent Majesty Queen Victoria, by. Her
Letters Patent, bearing date the Twelfth day of December, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her, reign, did, for Herself, Her heirs and successors, 30
give and grant unto me, the said Bristow Hunt, Her special licence that

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trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for AN IMPROVED INCUBATOR OR
APPARATUS' FOR 'HATCHING EGGS, AND FOR REARING THE YOUNG WHEN HATCHED, (a
communication to me from abroad by "James Stone, a person resident in
Ceylon); upon the condition. (amongst others) that I, the said Bristow
Hunt,my executors or "administrators, by an "instrument in writing
under my, or their, or one of their hands and, seals, should particularly
describe and, ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause, the same to be filed in
the Great Seal Patent Office within six calendar months, next and
immediately after the date of the said Letters Patent.
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NOW KNOW YE, that I, the said Bristow Hunt, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement in writing, and on refererence being had to the
accompanying Sheet of Drawings, that is to say:
This Invention relates to an improved incubator or apparatus of
simple and inexpensive construction for hatching eggs,, and also for
rearing the young when hatched.
The incubator (which is illustrated on the accompanying Drawings in
Figures 1 to 4) consists mainly of two boxes 1, 2, placed one within the
other so as to leave a clear space of about an inch or so at every part
between them, which is filled with any suitable non-conductor of heat
3. The lower part of the inner box 2 contains a metal vessel --4 (a
space of about an inch or so being left between them and filled in with
the non-conducting material 3), which is filled with hot water or other
suitable heated liquid once sin say every 12 hours, and above which is
placed a tray 5 to contain the eggs for incubation. The heat is
graduated and air admitted thereto as required by means of a perforated
lid capable of adjustment over a grating or perforations at the top of the
outer box. A similar arrangement is also provided between the vessel 4
and the tray 5; it consists of two thin perforated pieces of wood 6, 7,
one sliding over the other, and actuated by means of a thumb, or milled
head screw 8 passing through one side of the boxes.

page_text: That part of the Invention relating to rearing the young when
hatched, which I call the "mother," (and which is illustrated on the
accompanying Drawings in Figures 5 to 7). is similarly. constructed,
excepting that the vessel for the heated liquid is placed at the upper
part of the box-2, so as to leave a sufficient space below. to admit the
young to warmth; the framework 9 is made as light as possible and
enclosed by, wire netting. The part over the funnel 10, Figure:6; opens
on, a hinge placed at the upper part of the netting. The liquid is
admitted to; and drawn, from the vessel by pipes, cocks, or taps 10, '11,
suitably arranged for such purposes.
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The apparatus as above constructed requires no further care or
watching than to empty and supply the vessel 4 with the heated liquid
at the proper times.
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Having now described the nature and object of the said Invention
for "An Improved Incubator or Apparatus for Hatching Eggs, and for
Rearing the Young when Hatched," together with the manner in which
the same is to be or may be performed or carried into practical effect," I
would remark in conclusion that I claim as the Invention communicated
to me by the above-named. James Stone, the general construction and
arrangement of the improved apparatus and its employment for hatching
eggs, and for rearing the young when hatched, substantially as herein.
described and as illustrated on the accompanying Drawings.
In witness whereof, I, the said Bristow Hunt, have hereunto set
my hand and seal, this Twelfth day of June, in the year of our
Lord One thousand eight hundred and seventy-two: