
1. Multiple thermal cell construction comprising a cylinder having heat source material therein and forming one electrode of a cell, dry electrolyte in contact with the outer surface of said cylinder, a metal band enclosing said electrolyte and forming another electrode of said cell, a metal band on said cylinder in spaced and insulated relation with respect to said electrolyte and forming an electrode of another cell in series with said first mentioned cell, dry electrolyte in contact with said...











