CHAPTER V.
PUTTING IN A NEW CYLINDER.
Putting in a new cylinder is something most watchmakers fancy they can
do, and do well; but still it is a job very few workmen can do and
fulfill all the requirements a job of this kind demands under the
ever-varying conditions and circumstances presented in repairs of this
kind. It is well to explain somewhat at this point: Suppose we have five
watches taken in with broken cylinders. Out of this number probably two
could be pivoted to advantage and make the watches as good as ever. As
to the pivoting of a cylinder, we will deal with this later on. The
first thing to do is to make an examination of the cylinder, not only to
see if it is broken, but also to determine if pivoting is going to bring
it out all right. Let us imagine that some workman has, at some previous
time, put in a new cylinder, and instead of putting in one of the proper
size he has put one in too large or too small. Now, in either case he
would have to remove a portion of the escape-wheel tooth, that is,
shorten the tooth: because, if the cylinder was too large it would not
go in between the teeth, and consequently the teeth would have to be cut
or stoned away.
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