Abstract: A compact operating mechanism for switches and circuit interrupters provides improved input drive arrangement and more particularly to a quick-make quick-break operating mechanism for electrical circuit interrupters, i.e. load-interrupter switches and fault interrupters, the drive input arrangement being capable of either power or manual operation without the necessity of any coupling/decoupling or mode selection.

Abstract: A process for drying wet particles of an available halogen compound which comprises:a. forming a substantially vertical circulating bed of dried particles of said available halogen compound suspended in a heated gas in a circular annular zone, said zone having an exterior perimeter and an interior perimeter and having contiguous sections comprised of a top, a feed side, a bottom and a dryer side,b. feeding wet particles of said available halogen compound into said circulating bed from the exterior perimeter of said feed side,c. feeding additional heated gas tangentially into said zone from the exterior perimeter of said bottom, the velocity of said heated gas being sufficient to maintain said circulating bed in said zone,d. withdrawing a product portion from said circulating bed from the interior perimeter of said feed side, downstream from said top, ande. recovering said dried particles of available halogen compound from said product portion.