The Box Dead-fall
Categories:
HOUSEHOLD TRAPS.
This trap is an old invention, simplified by the author, and for
the capture of rats and mice will prove very effectual. It consists
of a box, constructed of four slabs of 3-4 inch boarding, and open
at both ends. The two side boards should be 10 x 18 inches; top
and bottom boards, 6 x 18 inches. For the centre of the latter,
a square piece should be removed by the aid of the saw. The width
of this piece should be four
inches, and the length eight inches.
Before nailing the boards together, the holes thus left in the
bottom board should be supplied with a treadle platform, working
on central side pivots. The board for this treadle should be much
thinner and lighter than the rest of the trap, and should fit loosely
in place, its surface being slightly below the level of the bottom
board. This is shown in the interior of the trap. The pivots should
be inserted in the exact centre of the sides, through holes made
in the edge of the bottom board. These holes may be bored with
a gimlet or burned with a red-hot wire. The pivots may
consist of stout brass or iron wire; and the end of one should
be flattened with the hammer, as seen in (a). This pivot should
project an inch from the wood, and should be firmly inserted
in the treadle-piece. The platform being thus arranged, proceed
to fasten the boards together, as shown in the illustration, the
top and bottom boards overlapping the others. We will now give
our attention to the stick shown at (b). This should be whittled
from a piece of hard wood, its length being three inches, and its
upper end pointed as seen. The lower end should be pierced with a
crevice, which should then be forced over the flattened extremity
of the point (a) as shown at (c), pointed end uppermost. The
weight (d) is next in order. This should consist of a heavy oak
plank two inches in thickness, and of such other dimensions as will
allow it to fit loosely in the box, and fall from top to bottom
therein without catching between two sides. A stout staple should
be driven in the centre of its upper face, and from this a stout
string should be passed upward through a hole in the centre of
the box. We are now ready for the spindle (e). This should be
about three inches in length, and bluntly pointed
at each end, a notch being made to secure it at a point five inches
above the pivot (c). To set the trap, raise the weight, as seen
in the illustration; draw down the string to the point (e), and
attach it to the spindle one-half an inch from its upper end, which
should then be inserted in the notch, the lower end being caught
against the extremity of the pivot stick. The parts are now adjusted,
and even in the present state the trap is almost sure to spring at
the slightest touch on the treadle-piece. An additional precaution
is advisable, however. Two small wooden pegs (f) should be driven,
one on each side of the spindle, thus preventing any side-movement
of the latter. It will now be readily seen that the slightest weight
on either end of the treadle-piece within the trap must tilt it
to one side, thus throwing the pivot-piece from its bearing on
the spindle; and the latter being released, lets fall the weight
with crushing effect upon the back of its hapless victim.
The trap is very effective, and is easily constructed. The bait
should be rested in the centre of the treadle platform. Built on
a larger scale, this device may be successfully adapted to the
capture of the mink, martien, and many other varieties of game.