The Buchanan County guardian. (Independence, Buchanan County, Iowa) 1858-1864, 1862-06-10

first and hlg hest the sap is placed. and
the fire applied, but perfectly controlled
by means of damper, so that the hea,
may be regulated Tor such time, and to
just the extent required. The grosser
impurities, in the form of a green scum,
here have ample time to separate, and
rise to the surface. And here another
essential improvement in Mr.. INGALLS,
apparatus may be noticed. This is a
novel skimming device. A II know how
much labor it requires, in boiling the sap,
TO skim off the impurities, and all know
that the common process but breaks up
the green mass into fragments, and when
The sap is boiling, allows the smaller
particles to become incorporated again
with the sap. Proper publication in
this way is impossible, for skim as much
as you will, you cannot entirely clear the
surface. In INGALLS, apparatus, however,
the scum rises to the surface, and is
gently foaled off in a mass, not broken
up Or separated, as in the usual manner OF
skimming. The skimming is not only
thus perfectly done, but done in few Sec
onds, instead. as i'll other apparatus, re-
curing the almost constant labor of one
person.
We have said that Mr.. INGALLS, APP
paraius has three pans. The second
pan is placed a little lower, and at the
end oil the first. When the green scum
is thoroughly removed in the first pan,
the sap is let into the second, which has
the same capacity as the first. In this
second pan, some simple deiecting'agent
may be placed, to expel the finer impur.
ties OF the sap, which generally rise in
the form OF a brown scum. This is done
at almost the same temperature as that re-
quired in the previous process, and the
heat can be wholly or partially cut of
from this pan, as from the first, by means
OF a damper. The skimming device can
also be Instantly attached to this pan,
and the impurities as effeclually hoaled
off upon it, BY these two processes of
purltcation, the cleansing OF the sap must
be very thorough. and the main essen
tial for the manufacture of good syrup
complied with.
The third evaporating pan is placed
parallel with the first pan, and is little
lower than the second. AS soon as the
cleansing process is finished, the sap is
drawn Oft into this pan, which is direct
ly over the furnace. In both Of the
other pans the sap has been kept up to
near the boiling point and Of course
there is no expenditure OF heat The
general testimony OF syrup makers is
that the sooner the evaporation can be
effected after t! e inn uritles are removed
the better the syrup. The application
of the heat directly TO the eyaporating
pan, in Mr.. INGALLS, Evaporator, gives
this required CELEBRITY. And in this con-
neclion We have another admirable fea-
turc in Mr.. INGALLS, machine.
All know how quickly. after evapora-
ton has been pretty we'll effected, the
syrup burns, and is ruined and dipping
the syrup out Of the pan but increases
the facility for scorching, as the smaller
the quantity in the pan the quicker it
will burn. Some put the fire out, while
others set the pan off bodily. Both
methods involve "a loss of time, expendi-
tn. e OF heat, aud much labor. Mr.. In
CALLS meets the difficulty IN an easier,
simpler, more efficacious aud more prof
liable way. He simply runs in an iron
damper, as large as the inner dimensions
OF the furnace, which entirely cuts off
The fire from the pan, leaving an air
chamber Two or three inches in depth,
through which current Of cold air pass
es by throwing open the furnace door
This, rs every one can see. instantly and
entirely checks the heat, cools the pan,
aud allows the drawing off of the syrup
without particle of danger of scorching
or burning ii.
Mr.. INGALLS, simple arrangement oil
furnace and hampers, giving thorough
control Of the fire, tends also TO economy
OF fuel. TIE furnace, as we have said,
is under the evaporating pan. Turn
down a damper at the side, and the heat
passes under the first pan. Turn down
another damper at the end, and the heat
passes under the second pan. Turn
them both down, and you have the heat
operating upon all the pans, and, as we
have said by arranging the hampers, you
get just SO much or SO little heat as is
needed. There is no putting out OF fires,
and not particle oil waste Of fuel or Of
heat.
BY the arrangement Of the pans, it will
be seen that they can all be used at the
same time. and that while one pan full is
being evaporated, others are preparing,
and there is no loss of time, showing that
the manufacturing capacity of the appar-
atus Is great. Nor is there any labor of
As the pans are SO arranged as
10 allow the sap TO flow from one TO the
other OF the pans. and the syrup from
the evaporalor into the barrel to receive
ii.
A large portion Of tie labor in other
processes, is that Of skimming. This is
dispensed with, as We have shown here
toiore, and one man is sufficient TO attend
entirely to the pans and the fire. This
is great saving in this one particular
alone.
Ii The furnace is built Of stone or of
brick, the whole cost Of the apparatus
excluding only the labor OF laying up the