Belington progressive. [volume] (Belington, W. Va.) 1912-1927, 1916-10-19

| inch hole through the center line four
inches from one end. Tack over this
hole, on the back of the board, strip
of zinc three-fourths inch wide and
2A inches long, bearing a connecter
that has been cut from discarded
dry battery Gig 2, 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
a short circuit. In Gambling, 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. 2, o., screwed at
such 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 tho
stem of the lamp goes straight into
the hole. Only the metal contact
point In the center of the stem should
touch the zinc. IL the metal screw
plate around the outside OF the stem
touches the zinc, it viii cause short
circuit and the lamp viii not burn.
The lower screw in the spring should
have close-fitting 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 and out.
Wiring.
Method Run one wire from tho
right of the batteries to the connecter
Gig. 2, HI on the board. Fasten tho
second wire (from the left of the bat
terles) beneath the washer under the
lower screw that holds the lamp
spring Orig. 2, c.. The device is then
ready for operation.
Method 2.--If desired a switch
Gig l. s; also shown in Fig. % may
be mounted on the front OF the box
and one wire in the circuit Gig. 2, j
run through 1t. The operator, how
ever, ordinarily will find 1t 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 a way
that the voltage Of the current is APP
proximately that required by the
lamp. If the voltage Is too high, the
lamp will burn out quickly; IL too
low, the light will be dim. Any dealer
in dry batteries will have voltmeter
and can assist Il connecting the cells
so they Will give the required voltage.
IL 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 Gs,sse-a.e at tsn
three cells.
IL much Gambling Is to be done, 1t Is
advisable to connect two sets of dry
batteries to the candle, controlled by
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 a constant
light is desired, the contact may be
made steady by turning the button
Gig. 2, Ed over the lip Gig. 2, d.
on the back of the candle.
The materials for this apparatus,
including three dry cells ShOuld nor
cost over $3.50, itemized as follows: