"Karl Townsend" wrote in message
...
Please look at this pic:
http://www.metalworking.com/dropbox/tripod.jpg

At left center is a yoke and thick disk with a bolt clamp. The yoke
and disk are grooved or racheted. I'd like to buy this component, if
possible. What do you call it? Where might you get it?

Karl


You might be able to make the detents by bonding or brazing serrated washers
to other parts.
http://www.amazon.com/Dia-Compe-Serr...PN4/ref=sr_1_2
or
http://www.springmasters.com/disc-sp...y-washers.html