Greetings campers & gearheads
Pictures/drawings of assorted triplizer chainrings have been added Mark Bulgier's ever expanding website.
http://bulgier.net/
If anybody has pics of other brands, this would be a good place to send them. I have an article somewhere by a guy who added a freewheel cog as a third ring to a cheapy Sugino crank with 3-bolt chainrings. An interesting act of creative desperation at the time, but I don't think that counts as a triplizer.
Larry "more scams & scans" Osborn