wrote in message

I was wondering if there are any special hinges that will swing open
without having the inner edge of the door protrude as it is opened.
Perhaps some double-jointed european hinge that keeps the radius of the
door edge at zero?

I'm not completely sure that you're looking for, but perhaps one type of
these might suffice.

http://www.leevalley.com/hardware/pa...47&cat=3,41241
http://www.leevalley.com/hardware/pa...64&cat=3,41241
http://www.leevalley.com/hardware/pa...=3,41241,41265