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The Crossbow
Chapter XXI
The Construction of the Crossbow (Continued)
The Trigger and Lock
Fig. 54. - Side View of the Trigger of the Crossbow
Scale 1/4 in. = 1 in.
Fig. 54. - The handle or round part of the trigger, A-A, that is outside
the stock, is 8 1/4 in. long and 3/8 in. diameter. The flat part of the
trigger, A B, which works inside the stock, is 7/16 in. thick. The hole
for the transverse pin on which the trigger hinges, is 3/8 in. diameter.
The point, B, of the trigger, or that part of it which engages the notch
in the nut, is hardened to withstand wear from friction.
The point, B, of the trigger, is 7/16 in. thick and 1/4 in. deep. It
should just fit through the opening in the socket, as well as for 1/8 in.,
or half its depth, into the notch in the nut, as shown in fig. 55.
Fig. 55. - Side View of the Trigger in Position in
the Stock, Showing How the Lock of the Crossbow Works. Scale 1/4 in. =
1 in.
Fig. 55. - When the handle end of the trigger, A-A, is pressed upwards
towards the under side of the stock, the point of the trigger (B, fig.
54), at once drops out of the notch in the nut. The nut being then free
to revolve, instantly releases the bow-string, which was stretched and
previously held fast over its fingers. |
