| 摘要 |
1. Device for setting into motion a medium in bulk, such as a medium in the form of powder, granules or paste, of the type constituted by an endless screw driven in rotation, of the type in which the screw is composed of a plurality of sections (1, 2, 3) distinct from one another but connected kinetically to one another by drive means such as stops (7, 8) adapted to come into mutual abutment from one section to the other and making it possible temporarily to control the transmission or nontransmission of the movement from an upstream section to an adjacent downstream section, and characterized in that the sections each have the form of a sleeve on which is developed a portion of screw and are mounted on a common shaft (6). |
