The Newberry herald and news. (Newberry, S.C.) 1884-1903, 1901-07-19

"Itlllclal incubation has como into
extensive use, and as tho most oxton.
sivc application Of these machines is
IN agricultural districts, where the
kerosene lamp is the standard OF
illumination, it is not surprising that
this snmo lamp has como to be the
lstandard source Of heat.
| About two years ago the writer
Witnessed tho destruction by fire Of
tho poultry houses connected with u
Now York State institution, tho origin
OF the fire being directly tracoablo to
an incubator lamp, and it occurred
to him that here was another legiti.
mate field for electricity in the hout
ing OF incubntors aud broolors.
Since tint timo experiments have
been carried out and with gratify
ing results
As beginning, an Incubator sad
by the makers to be fitted to operate
by electricity was purchased fro,n q
We'll known manufncturor, bnt it was
cYld"nt from tho first Tint it wonll
proved unsuccessful The Drir.y VI
upon whiI--'~ $50 -'"r The h":r;,lpIe
~ ,,, .".Hn 1t operated was that IN
/ Il"ctric atovo WAS arranged so rs 20
heat water in an expansion tank, the
water in turn hcatng tho air inside
tho mnchino by circulating through
pipes. Tho heat regulation, very
imp 'rtant detail in mnchluo Of this
class, WAS secured by cutting tho
stovo in and out by moans Of q NOR
curry switch operated directly from
tho thormostat through Il systcm of
lovers, but, owing to tho sluggish
action of tho thermostat, q worry do
structlvv arc WAS formed each time
tn" circuit was oponod.
In order to uso this machine in
tho experiments several changes
were made. Tho small mercury cup
was discarded, and ono Of ample
dimensions substituted, and M q
means Of preventing tho arc very
| small 6olcnOid wns connected in
series with the stove and Just under
tho lover, carrying tho pm which
plunged into ,ne mercury. TO this
lever was attached tho plungor of the
sol"nold, SO that when tho pin first
! touched the mcrcury tho current
! flowing through the solcnoid would
| :hrow the lever out Of balance and
plunge tho pin deep into the mer-
curry. On opening, the reverse would
TAX" place, tho pin breaking tho arc
instantly. Tho objectionable foaturo
Of this mechanism ia that with it close
regulation is impossiblc, partly
owing to tho largo body Of water
which continues to raise tho tompora
turo after tho hont is shut Off. and
partly owing to tho sulonoid, which
prevents opening and closing the
circuit at tho sama temperature.
However, this machine has run sac.
ccssfnlly for two Seasons, and tho
variation in temperature does not
exceed throo degrees. This varia-
ton might DO considerably reduced
| by using thormostat to close a bat
tory circnit through an automatic
| switch, which switch in turn closes
tho main circHlt. This arrangement
is successfully used in many bactcri-
! illogical incubutors.
| After the chicks are hatched they
must bo placed in broodcr, and
here, too, the kerosene lamp may
we'll give way to electricity. A
broodor which wo have constructed is
heated by coils Of iron wiro beneath
| "hich Is plate OF shoot iron. Strips
OF Il"nnels hang from tho sheet iron,
and into this ilannol tho chicks run
and huddIo togothor. In another
tho source of heat is from incandes
cont lamps inclosed in shoot meta]
box, with strips of flannel rs above
suspended from tho bottom. Both
broodors arc controlled by rheto.
stats, so that any temperature can bc
maintained at will. 1t was fount
that eight "a candle. power lamps
furnished sufficient hoat for Il broodo,
Six feet by four foot, but this mum
ber could bo materially reduced b,
proper procaution in the way of hea
Notwithstanding of tho kind hav
inc been attomDtol i'm tbo oboy., =,