94, were employed.
[Illustration: Fig. 99]
To enable us to practically experiment with and to fully demonstrate all
the problems of lock, draw, drop, etc., we make quite a large hole in
_C_ where the screws _b_ come. To explain, if the screws _b b_ were
tapped directly into _C_, as they are shown at Fig. 95, we could only
turn the disk _D_ on the screw _b_; but if we enlarge the screw hole in
_C_ to three or four times the natural diameter, and then place the nut
_e_ under _C_ to receive the screw _b_, we can then set the disks _D D'_
and pallets _B B'_ in almost any relation we choose to the escape wheel,
and clamp the pallets fast and try the action. We show at Fig. 97 a view
of the pallet _B'_, disk _D'_ and plate _C_ (seen in the direction of
the arrow _c_) as shown in Fig. 95.
PRACTICAL LESSONS WITH FORK AND PALLET ACTION.
It will be noticed in Fig. 99 that the hole _g_ for the pallet staff in
the lever is oblong; this is to allow the lever to be shifted back and
forth as relates to roller and fork action.
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