| 摘要 |
<p>Bucket conveyor (13) with a rotatable boom, which comprises a frame (18) and a plurality of pulleys (21-22-23) on which an endless catenary (17) of buckets (20) is driven, the catenary (17) consisting of at least one chain (19) bearing a plurality of buckets (20), in which bucket conveyor (13) substantially a whole lower bar (28) contained between the front lower pulley (22) and the rear lower pulley (23) is able to ,oscillate and is rotated about the neighbourhood of the axis (30) of rotation of the front lower pulley (22).</p><p>The variant of the bucket conveyor (13) with a rotatable boom comprises in cooperation with the front lower pulley (22) a support (41) able to move substantially in the plane on which such catenary (17) of buckets (20) lies.</p> |
