The record. (Greenville, Ky.) 1899-1???, 1917-01-04

fourth inch thick, by boring IL half
inch hole through the center line four
inches from one end. Tack over tLia
hole, on the back of the board, i strip
Of zinc three-fOurthS inch wide and
2A inches long, bearing connecte1
that has been cut from Il discarded
dry battery dig >, H). Bend the con-
necter end Of the strip up at one edge
of the board. Be careful to see that
the ointment box cannot touch this
cOnnecter or the zinc and thus make
q short circuit. In candling, do not
allow the hand to touch this cOnnec-
ton and the metal box at the same
time.
Mount the Gambling box on the face
of the board by means of two round
head screws through the lower end
Of the spring Gig. =, C), screwed at
such a distance from the hole as will
allow the end of the light bulb to pass
through the half-inch hole and come
in contact with the zinc on the back.
Care must be taken to see that the
stem of the lamp goes straight into
the hole. Only the metal contact
point in the center of the stem should
touch the zinc. If the metal screw
plate around the outside of the stem
touches the zinc, it will cause q short
circuit and the lamp will not burn.
The lower screw in the spring should
have clOse-ftting copper washer.
Screw or nail the board to the middle
of the back of the case so the light
is ten inches above the bottom.
Paint the case black inside ;lud out.
Wiring.
Method Run one wire from the
right of the batteries to the connecter
Gig. 2, H) on the board. FaSten the
second wire from the left of the bat
teries) beneath the washer under the
lower screw that holds the lamp
spring Gig. >, c.. The device is then
ready for operation.
Method 2-If desired, switch
Gig. 1, S; also shown in Fig. p may
be mounted on the front of the box
and one wire in the circuit Gig. 2, D
run through it. The operator, how
ever, ordinarily will find it just as
convenient to control the current by
means of the button above the candle.
Connecting the Dry Cells.
Care should be taken to see that the
batteries are connected in such q way
| that the voltage of the current is ap-
prOXimately that required by the
lamp. If the voltage is too high, the
lamp will burn out quickly; if too
low, the light will be dim. Any dealer
i'll dry batteries will have a voltmeter
! and can assist in connecting the cells
so they will give the required voltage.
If connected as shown in Fig. 2, the
voltage from two cells only is applied
to the light, which, nevertheless, has
the benefit of the full amperaSe Of the
three cells.
If much Gambling is to be done, it is
advisable to connect two sets Of dry
batteries to the candle, controlled by
Il three-way circuit. Then the sets
can be used alternately and their life
| greatly prolonged.
Simply holding an egg against the
Gambling opening will press the con-
tact in the stem of the bulb against
the zinc contact on the back of the
board, causing light to shine through
the egg. When the pressure is re-
moved, the contact is broken by the
spring on the lamp box. If Il constant
light is desired, the contact may be
made steady by turning the button
Gig. 2, E) over the lip Gig. 2, D.
on the back of the candle.
The materials for this apparatus
including three dry cells, should not
cost over $1.50, itemized as follows