.~ Having means by which work is progressed or moved mechanically {9}
151
.~.~ Stirrer in externally heated tank
DEFINITION
Classification: 432/151
(under subclass 121) Apparatus including means for stirring a batch of material in a closed bottomed, liquid-tight vessel to which access is had from the top and to which heat is applied externally.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
179+, for a drier comprising a stationary receptacle or tube with agitator or conveyor.
159, Concentrating Evaporators,
33, for an open pan having a rake means for evaporating a liquid for the specific purpose of concentrating it.
165, Heat Exchange, 109.1, for a heat exchange structure having agitating or stirring means that is equally adapted to heat or to cool the agitated or stirred material.
366, Agitating,
149, for a mixing chamber having a heating jacket.
