| 摘要 |
The machine includes an eccentric driven by shaft, which operates a fork. This imparts a to-and-fro movement to connecting rod and to another lever or connecting rod fixed to the upper part of the machine and guided or adjusted at the bottom by guide. This carried at its lower end a clamp and spring which applies pressure and withdraws, sliding across the material to fix the object, and once jaws open, runs forward carrying the material to fix the objects.
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