Worm wheel 2, ro ta ting about
fixed axis A , is rig id ly mounted
on armature 3 and is driven by
worm 1, which rotates about
fixed axis B. Measuring spindle 5
bears against the lower slanted
face of washer 4, which is
rig id ly secured to worm wheel 2.
When worm wheel 2 is turned,
the p o in t of contact is changed
between measuring spindle 5
and washer 4. This adjusts the
m u tu a l position of spindle 5 and
armature 3.
$4371$SmE,M$