ve sometimes found theories
propounded and elongated which of themselves were not right; this may
have something to do with it, that we so often hear workmen say, "Theory
is no use, because if you work according to it your machine will not
run." We say, "No, sir, if your theory is not right in itself, then your
work will certainly not be correct; but if your theory be correct then
your work _must_ be correct. Why? it simply cannot be otherwise." We
will give it another name; let us say, apply sense, reason, thought,
experience and study to your work, and what have you done? You have
simply applied theory.

A theorem is a proposition to be proved, not being able to prove it, we
must simply change it according as our experience dictates, this is
precisely what we have done with the escapement after having followed
the deductions of recognized authorities with the result that we can now
illustrate an escapement which has been thoroughly subjected to an
impartial analysis in every respect, and which is theoretically and
practically correct.

We will not only give instructions for drafting the escapement now under
consideration, but will also make explanations how to draft it in
different positions, also in circular pallet and single roller. We are
convinced that by so doing we will do a service to many, we also wish to
avoid what we may call "the stereotyped" process, that is, one which may
be acquired by heart, but introduce any changes and perplexity is the
result. It is really not a difficult matter to draft escapements in
different positions, as an example will show.

Before making a draft we must know exactly what we wish to produce. It
is well in drafting escapements to make them as large as possible, say
thirty to forty times larger than in the watch, in the present case the
size is immaterial, but we must have specifications for the proportions
of the angles. Our draft is to be the most difficult subject in lever
escapements; it is to be represented just as if it were working in a
watch; it is to represent a good and reliable action in every respect,
one which can be applied without special difficulty to a good watch, and
is to be "up to date" in every particular and to contain the majority
of the best points and conclusions reached in our analysis.

_Specifications for Lever Escapement_: The pallets are to be
equidistant; the wheel teeth of the "club" form; there are to be two
rollers; wheel, pallet, and balanc