59 lines
2.2 KiB
Plaintext
59 lines
2.2 KiB
Plaintext
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Clothespin Switch by the Jolly Roger
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A spring type clothespin is used to make a circuit closing switch to
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actuate explosive charges, mines, booby traps, and alarm systems.
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Material Required:
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-----------------
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Spring type clothespin
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Sold copper wire -- 1/16 in. (2 mm) in diameter
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Strong string on wire
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Flat piece of wood (roughly 1/8 x 1" x 2")
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Knife
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Procedure:
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---------
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1) Strip four in. (10 cm) of insulation from the ends of 2 solid copper
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wires. Scrape the copper wires with pocket knife until the metal is
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shiny.
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2) Wind one scraped wire tightly on jaw of the clothespin, and the other
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wire on the other jaw.
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3) Make a hole in one end of the flat piece of wood using a knife, heated
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nail or drill.
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4) Tie strong string or wire through the hole.
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5) Place flat piece of wood between the jaws of the clothespin switch.
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Basic Firing Circuit:
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--------------------
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______________
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| |---------------------------\
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| initiator |----------\ | strong
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-------------- | | twine
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| | \
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| _---------_________
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| ---------
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| | \clothespin \ /
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\ / switch
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\ /
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\ /
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\ /
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+ -
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----------
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| battery|
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----------
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When the flat piece of wood is removed by pulling the string, the
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jaws of the clothespin will close, completing the circuit.
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CAUTION: Do not attach the battery until the switch and trip wire have
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been emplaced and examined. Be sure that the flat piece of wood is
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seperating the jaws of the switch.
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-----------------Jolly Roger
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