SPINNING MACHINE FOR PRODUCING CHEMICAL FILAMENTS Russian patent published in 1996 - IPC

FIELD: chemical industry. SUBSTANCE: combined extract and input ventilation system is continuously supplied by air in upper part of space below capsule. Air is delivered from input airduct and directed through openings in panel to inclined shield-like partition. As air flow rate is increased due to ejection, air-gas mixture is created and directed away from movable bundles to rear wall of space under capsule and then common flow of air and air-gas mixture is urged through shortest way along rear wall to slit-type suction device of extract ventilation box. Air-gas mixture flows from working space to rear wall to prevent escaping of harmful substance from above-mentioned space into working zones of shop. EFFECT: increased efficiency, wider operational capabilities and enhanced reliability in operation. 3 cl, 3 dwg