(under subclass 32) Processes directed to positively agitating the charge in the carbonizing zone.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
114+, and 122 for a rotating retort with means for gas or vapor contact with the treated material.
198, Conveyors: Power-Driven,
467.1, 513, 545, 548, 550.10, 608, 611+, 468.10, 625, 657+ for a screw conveyor, subclasses 409, 429+, 517, 602, 614, 621.1+, 736+, and 750.1+ for a reciprocating conveyor, and subclasses 441+, 450, 550.6, 608, 611+ for a rotary conveyor.
202, Distillation: Apparatus, 118, 131, 136, 216, 218, 238, and 265, for distillation apparatus including a rotating retort or agitating elements and see "SEARCH CLASS" under subclass 218 and 265.
366, Agitating,
219+, for a mixing chamber which moves, in whole or in part, to effect agitation; also the corresponding method.
