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MAY
is4
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Regulation
THE
BASIC
ACCURACY
OF THE
ACCUTRON TUNING FORK
IS
SUCH
THAT
REGULATION FOR
MORE THAN A FEW
SECONDS
PER
DAY
IS
NOT
REQUIRED.
CAINS
OR
LOSSES
OF
A
MINUTE
OR MORE A WEEK
INDICATE
THE
NEED
FOR
REPAIR.
NOT
REGULATION.
ACCUTRON
regulators
The
ACCUTRON
regulators (see
Fig.
4
J
are serrated
to
make
them
easier
la
rotate
and
to
serve as a
calibration.
G3SERVE
THE
SEVEN
"DMSKWS
Fig.
»
The
serrations
of each
regulator
form
7
divisions
(4
projections
and
3
indentions).
Each
of these
divisions
is
equal
to
2 seconds per
day
of
correction;
in
other words,
rotating
one
of
the regulators
a distance equal
to
one
division,
changes
the rate
of
the
ACCUTRON
timepiece
by
2
seconds per
day. Regulation
for
as
little
as
x
/x
second
per
day can
be
made
by
rotating
one
of
the regulators
V*
division.
The amount
thai a
regu-
lator
is
rotated
can be
easily
gaged
by
reference
to
the
dot
on
the top of
each
cup.
Either
one
or
both of
the regulators
can be rotated
in
making
a
correction; for
exam-
ple,
a correction
of
4 seconds per
day can be
made
either
by
rotating
one
regulator
2
divisions,
or
by
rotating
each of
the regulators
1
division.
Since
there
are
7
divisions
on
each
of the regulators,
and
since each
division
is
equal
to 2
seconds per
day.
it
would be
impossible
to
make
a correction of
more
than
28
sec-
onds
per day.
even
if
both
regulators
were
originally set
all
the
way
in
one
direction.
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