The
conditions which surround our balance are very constant, the small
pivots turning in fine hard jewels lubricated with an oil on which
exposure to the action of the air has little effect, leaves but few
influences which can interfere with the regular action of our balance.
We add to the influences an adjustable correction for the disturbances
of heat and cold, and we are convinced that but little could be added.
ANTAGONISTIC INFLUENCES.
In this combination we have pitted two antagonistic forces against each
other, viz., the elasticity of the spring and the weight and inertia of
the balance; both forces are theoretically constant and should produce
constant results. The mechanical part of the problem is simply to afford
these two forces perfect facilities to act on each other and compel each
to realize its full effect. We must also devise mechanical means to
record the duration of each conflict, that is, the time length of each
vibration. Many years have been spent in experimenting to arrive at the
best propositions to employ for the several parts to obtain the best
practical results.
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