On Oct 20, 9:36*pm, Karl Townsend
wrote:
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

Serrated locking plates, may be overkill, but I also come up with
Hirth tooth coupling/rosette, Hirth serration.

http://www.jwwinco.com/products/section11/gn187/

http://www.berger-tools.co.uk/series...3&SeriesID=888

http://www.elesa-ganter.com/en/2/sp/...n-187.4-ni/eg/

(an example of it called a 'rosette')
http://www.red.com/store/rail-compon...one-a-straight



Dave