摘要 |
<p>The pliers have jaws (1, 2) respectively provided with sharp spouts (4, 5) having cups at a pair of ends of the jaws and machined holes (7, 8) at another pair of ends of the jaws, where the jaws are coupled by an axle (3). The jaws are articulated by two diamond shaped clamps having connecting rods (9-12) activated by a central screw (6) with a rectified thread. The central screw includes a neckline part overdomed by a spring blocked by a washer (16). The rectified thread of the screw is screwed and unscrewed in another axle provided inside a rectified drilling.</p> |