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