The Clam Kiln is an ingenious, yet simple design created by the guys at Clay Art Center in Tacoma, WA.
The clam shell name for the bivalve opening kiln is appropriate to the flavor of the Tacoma origin as well as descriptive of the utility the design offers. They see clams everywhere. The clam shell provides the ease and rapidity needed for a Raku kiln but also delivers the industrial utility and efficiency expected by a production potter or sculptor. I fire my saggar-fired pots in this kiln as well as Raku.
One can also see a slideshow of a raku workshop held at the Mobile Museum of Art in 2013 here.