(under subclass 214) Apparatus having means contacted by the material as compacted and separate from the pressure surfaces, which means holds the material in its compacted condition against expansion upon withdrawal of the movable pressure surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78, for presses which additionally treat the material by winding or folding a sheet, web, or strand and which have means to retain the material in the wound or folded state.
187, for plunger type concurrent pressing and conveying presses in which a tube through which a plunger forces material is equipped with a means to restrain rebound of the material as the plunger is retracted.
219, for apparatus in which the rebound of the material is prevented by locking the platen in position.
