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The
operation of my nail-extractor is as follows: The operator
grasps the guide-piece D with one hand (usually the left)
below the point indicated by the dotted line ll, and
with the other by the handle m at the upper end of
the lever C, placing the jaws in the position shown in Fig.
1, astride the head of the nail and the chisel-edge of the
guide-piece upon the wood at the farther side of the nail.
With the upper hand the jaws are lifted up to the top of the
guide-piece, while the latter is held with the fulcrum in
undisturbed contact with the wood, as shown in Fig. 2, and
then violently thrust downward against the wood, which operation
embeds their points into the same on opposite sides of the
nail-head, when the top of the lever is inclined forcibly
in the direction of the fulcrum, and the gripping edge of
the jaw B is thereby swung toward that o the jaw A, which
remains stationary, and by continued inclination of the lever
the nail is extracted, the enlargements jj engaging
the walls of the grooves ff, and the farther edge or
back of the jaw A engaging the wall of the guide-piece at
the point o automatically, and held rigidly in position
with the fulcrum E, by the friction thereof, during the impingement
of the jaws on the nail, respectively shown in Fig. 3.
Having described my invention, what I claim as new, and desire
to secure by Letters Patent, is—
- In a nail-extractor, a leverless fulcrum and guide-piece
provided with a sharp point for engaging the wood,
in combination with an independent lever having fulcrumless
jaws attached to its lower end, which interlock with
said leverless fulcrum and guide-piece when said lever
is inclined in the act of gripping and extracting
a nail, but are each independent thereof during their
vertical play, substantially as and for the purposes
shown and described.
- In a nail-extractor having pivoted vertical reciprocating
jaws, the combination of a chisel-edge guide-piece,
with a fulcrum rigidly attached thereto.
- In a nail extractor, the herein-described clamping
device, consisting of a segmental-shaped recess formed
in one clamping-jaw, at right angles to its inner
edge, to embrace a correspondingly-shaped pin formed
upon the other jaw at the same relative angle and
place, operating together as set forth.
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Witnesses:
Octavius Knight,
L.M. Hopkins
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