Rotary table - how do they make a "quick-adjust feature"?
In my head I have a kind of picture how a rotary table might be made.
You have a base, with a central pivot (could be bored for a taper). Around
the pivot is a gear & the table, driven by a worm.
Some of these tables are advertised to have a method by which the table can
be decoupled from the gear, to allow quick rotation without turning the
worm. I have been turning this picture around and around in my head and
cannot figure out how they do this.
Someone tell me or point to a drawing, please...
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