| 摘要 |
PCT No. PCT/SU86/00129 Sec. 371 Date Jul. 16, 1987 Sec. 102(e) Date Jul. 16, 1987 PCT Filed Dec. 17, 1986 PCT Pub. No. WO87/03776 PCT Pub. Date Jul. 2, 1987.An agricultural machine comprises a frame (1) carrying a hopper (2) for a fluid material, the hopper (2) is located in a sealed chamber (4) having an inlet communicated with a source (5) of working fluid and a device for causing the fluid material to move which is made in the form of a driven drum (6) having a flexible hose (7) wound thereon. The interior space (8) of the hose (7) communicates with the hopper (2). The free end of the hose (7) is extended through the inlet of the chamber (4) being turned inside out and sealingly secured to and along the perimeter of the chamber (4) so as to define an annular space (A). |
