| 摘要 |
A belt conveyor (10) has vertically spaced, oppositely moving, upper (14) an d lower (18) load carrying runs having entrance and exit ends (16, 17; 20, 21). A first series of rollers disposed between die c ut end (17) of the upper run (14) and the entrance end (20) of the lower run (18) direct the belt downwardly, around a first drive assembly (26) toward the entrance end (20) of the lower run (18) along a first depressed section (37) of belt travel below the level of the lower r un (18) and upwardly to the entrance end (20) of the lower run (18) from a static takeup (38) installed below the lower run. A second serie s of rollers disposed between the exit end (21) of the lower run (18) and the entrance end (16) of the upper run (14) direct the belt downwardly from the lower run exit end (21) along a second depressed section (44) of belt travel below the level of the lower run around a second drive assembly (48) and upwardly to the entrance end (16) of the upper run (14). Lower run feed (105, 106, 107) and take-away (113, 114, 115) conveyors, respectively arranged above the first (37) and second (44) depressed sections of belt travel, converge into and diverge from alignment with the lower run entrance (20) and exit (21) ends for the in-line transfer of articles to and from the lower run (18). Upper run feed (120) and take-away (122) conveyors an aligned longitudinally with the upper run entrance and exit ends.
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