Leafing through some old turning magaines, I came across a novel
vacuum chuck in the September 1997 issue of "Woodturning" (UK).

There's an article on the Turbo RCD vacuum chuck, which used internal
vanes to generate a vacuum when the unit revolved at speed. No pumps
or through-suction - just a one-piece unit held in an existing
expanding chuck. Mainly wood, and looks hand-made, but marketed at
just under £70 at the time.

I can't trace this item - possibly the firm (Turbo RCD of Nottingham)
no longer makes them.

Can anyone remember this chuck - has anyone actually got one? I'd be
very interested to know if it worked (the "Woodturner" article seemed
to think it did).

And if it's no longer on the market, has anyone any idea how it was
made?

John