Richmond dispatch. [volume] (Richmond, Va.) 1884-1903, 1890-08-03
THE BATTERY.

To make q cell, or. in electrical parlance,
to put cell together" bore three holes
In one OF the wooden tops. making them
LARGE enough to allow the carbons and zinc
to pass through easily. If insulated WIRE
is used scrape on the insulation from one
end so a. to get three inches of bare cop
per: then leave three inches of insulation
and then another SIX inches bare, making
the entire length twelve inches. Now wind
the three inches of bare copper tightly
around the end of one OF the cartoons which
should be about four inches long by hair
an inch in diameter. Then around the
other carbon wind similar number OF
turns as on the first. There will thon be
three inches of insulated wire between
them and three inches OF bare wire project
ING from the end of one. Then pour
little melted lead over the ends of the wire
bound carbons to bend the WIRE closer, 10
obtain better insulation and preserve the
wires from contact with the acid when the
battery is IN use.
Next take piece of bare wire six inches
long and wind half of it around the end of
the zinc rod, in the same manner as already
done with the carbons, and fasten with
lead. Take on ordinary tumbler, lay the
wooden cap across IL, insert the zinc rod
In the middle hole and the two carbonS
through the holes at either end. The cell
is then ready for charging. Repeat this
operation for the other cells and then, glue
the four tumblers to the bottom OF long,
narrow box that win comfortably hold
them. and connect the cells with one an
other. This is done by twisting the end OF
the wire from the carbon OF one cell with
the end of the wire from the zinc OF the
next cell.
There will then be left two wire ends
free. one at each end of the line of cells,
one from the carbon rod, and one from a
zinc rod [see figure q. These are used to
be attached to the wires Of the lamp. Now
take an ordinary glass preserying-}ar anu
secure about three pounds OF lead to the
bottom of it by means of wire attached to
the lead and twisted around the neck OF
the lar This is to insure Its SINKING.
Have a tin tube about five feet long
and two inches o in diameter, one end
Of which is fitted with large cork that
forms q stopper to the preserye-Jar. lake
the three candle power lamp and some very
light WIRE, twist the latter around the globe
i'm such a way as to prevent it knocking
against the sides of the preserying-lar
also twist another piece of wire around the
neck of the lamp and bring the ends up
between the cork and neck OF the jar, so as
to hold it suspended in the jar. Take two
thirty-foot pieces of insulated wire, scrape
the ends clean for about three inches, pass
these down through the tin tube and at
Will place inside the preserve-lar, and push
ing the cork into the neck. leave the lamp
suspended in tho bottle and the tin tube
standing up from the cork with the long
insulated wires issuing from the top end.
All that is now needed Is piece OF board
or cork two feet square, with hole bored
in the middle, and your night-hshing ma
chine is complete.
THE FISHING.
A likely haunt of fish is chosen and tho
boat anchored; the preserye-jar contain
ing the lamp Is lowered TO depth OF four
or five feet, and held at that depth by pass
ing the tin tube through the square Nat
board or cork, using il as float. This
float is kept near the boat by cord at
tached to one corner. The two scraped
ends of the insulated wires are twisted
with the two wires of the battery that re-
main free, and all is complete. Upon the
charge being poured in the tumblers the
lamp will give light.
The formula for making the battery So
luton is as follows: Dissolve four ounces
of bi-chromate of potash (commercial) In a
quart of hot water. and after 1t Is cold add
very slowly and gradually four ounces OK
sulphuric acid (commercial), stirring dill
gently with glass rod mean while. When
cold again it is ready for use and gives the
best results by being made fresh. Any
druggist will make this mixture, and care
should be taken not to spill 1t on carpets
or clothes, as il will discolor them. In some
locations cans of prepared chromate, sufi-
cient to make four quarts of solution. can
be purchased at fifty cents a can. This So
luton should be carefully poured into the
tumblers. and when the lamp is to be lit
the wooden caps with their attachments
are to be gently dropped into place. The
only thing to be guarded against is the pro-
duction of "short circuit" caused by