The situation can be
summed up about in this way, that we will have to make the best we can
out of a bad job, and pick out and fit a cylinder on a compromise idea.
In regard to picking out a new cylinder, it may not do to select one of
the same size as the old one, from the fact that the old one may not
have been of the proper size for the escape wheel, because, even in new,
cheap watches, the workmen who "run in" the escapement knew very well
the cylinder and escape wheel were not adapted for each other, but they
were the best he had. Chapter II, on the cylinder escapement, will
enable our readers to master the subject and hence be better able to
judge of allowances to be made in order to permit imperfect material to
be used.
In illustration, let us imagine that we have to put in a new cylinder,
and we have none of precisely the proper size, but we have them both a
mere trifle too large and too small, and the question is which to use.
Our advice is to use the smaller one if it does not require the
escape-wheel teeth to be "dressed," that is, made smaller.
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