Plastic article or earthenware shaping or treating: apparatus – With separate and distinct upstream agitating or kneading means – Plural means being diverse – or parallel and intermeshing or...
Patent
1990-10-04
1991-05-21
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With separate and distinct upstream agitating or kneading means
Plural means being diverse, or parallel and intermeshing or...
425237, 425DIG230, 264119, 366156, B29C 4308
Patent
active
050171240
ABSTRACT:
A briquetter for low density materials having a hopper, an auger in the bottom portion of the hopper extending outwardly of the hopper with its leading end feeding material conveyed by the auger and a pair of rolls receiving the feed material having briquette forming pockets extending along the roll circumferences, arranged to form complementary pockets for shaping the briquettes transversely of the rolls. A pair of confronting, threaded auxiliary ribbon flights in the hopper are provided immediately above the auger for pre-compressing material as it enters the auger. The auxiliary ribbon flights are tapered in diameter and have threads that become progressively smaller and are in opposite directions so as to concentrate pressure on material entering the auger. The leading end of the auger is smaller in diameter than the threads of the auger and is pointed to concentrate pressure on materials introduced between the pair of rolls.
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Davis Robert B.
Ruano William J.
Woo Jay H.
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