| 摘要 |
<p>Machine for positioning eyelets of the type which have a handle on top and are operated by pressing said handle downwards, thereby cutting a fabric and positioning an eyelet ring in a single movement, said machine, comprising a top sleeve (1) and a bottom sleeve (2), being characterized in that the top sleeve has in its centre a projection or punch (3), the free end of which has a double-lipped edge or profile (4) in the form of a half moon. Moreover, in the centre of the free end of the punch (3) of the top sleeve (1) the machine has an adjustable screw (6), and the top sleeve (1), at the point where it is joined to the punch (3), is provided with a thickened portion (5).</p> |
