and
cc
is also not as great; therefore the lower the proportion the finer and more exact must the workmanship be.
We will notice that the unlocking action has been overruled by the impulse. The only point so far in which the former has been favored is in the diminished action before the line of centers, as previously pointed out at
P
, [Fig. 14].
We will now consider the width of the ruby pin and to get a good insight into the question, we will study [Fig. 17].
A
is the pallet center,
A′