Inventors:
Michael J. Papinchak - Plum Boro PA
Dino Ravasio - McKeesport PA
Assignee:
United States Steel Corporation - Pittsburgh PA
International Classification:
B29C 300, B29C 1500, B30B 300
Abstract:
Frictional drag on the feeder screw of a briquetting press is reduced and a concomitant reduction in feeder screw drive power requirements is realized by providing all but the lowermost flight on the feeder screw with regularly spaced notches to allow the reverse flow of limited amounts of the material being fed to the press.