| 摘要 |
FIELD: welding. ^ SUBSTANCE: device has movably interconnected links provided with a gas system supply to the welding site. The links are mounted on a flexible axle and are in contact over the ball-cone surfaces. The gas supply system is made of the central passage formed by axial openings provided in the links. The central passage is connected to the inlet pipe through the passage made in the first link as an opening and with distributing passages made in the links as throttles. ^ EFFECT: improved design. ^ 5 cl, 6 dwg |
