(under subclass 191) Apparatus in which the walls of the casing are held in place by a limited but continuing force so that the size of the outlet opening may vary with the amount of material forced therethrough.
SEE OR SEARCH THIS CLASS, SUBCLASS:
147, for concurrent pressing and conveying presses of the helix type compressor having overload release.
169, for concurrent type pressing and conveying presses having rolls in which the rolls are yieldable relative to one another.
