Conveyors: power-driven – Conveyor section – Pusher conveyor and separate load support surface
Patent
1979-08-31
1980-12-30
Stoner, Jr., Bruce H.
Conveyors: power-driven
Conveyor section
Pusher conveyor and separate load support surface
198729, 198735, B65G 1928
Patent
active
042418232
ABSTRACT:
A chain drag conveyor kit for converting a screw conveyor, of the type having a main trough with a semi-circular bottom and substantially flat cover, to a chain drag conveyor. The kit includes a pair of sprocket boxes dimensioned for assembly on the respective ends of the main trough and having mutually aligned sprockets therein including a drive sprocket. An endless drag chain is trained about the sprockets. The drag chain has conveyor flights secured at spaced intervals, the flights each having a semi-circular edge conforming to the bottom of the main trough and having a straight edge. A relatively shallow auxiliary trough of rectangularly U-shaped cross section is nested into the main trough, the auxiliary trough forming a return guide surface for the straight edges of the flights on the upper run of chain. A series of clamps along the edges of the cover hold the assembly together. In the preferred embodiment the auxiliary trough is formed of short sections arranged end-to-end with upper and lower members at the end of a section defining a socket for the adjacent section, the upper member being centered in a position registered with clearance spaces in the successive flights to insure that the flights have smooth uninterrupted guidance from one section of the auxiliary trough to the next.
REFERENCES:
patent: 1747471 (1930-02-01), Eckardt et al.
patent: 3061073 (1962-10-01), Wickam
Stoner Jr. Bruce H.
Union Iron Works, Inc.
Watts Douglas D.
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