| 摘要 |
<p>The method of temporary fastening loose paper sheets together relies on that in the stack of loose sheets, close to the edges, at least two openings are performed by a puncher through which individual connecting elements are manually threaded, using to that purpose a connecting element, which is a section of the spiral, consisting of at least one loop, preferably about two loops, wherein fractional parts of the loop are acceptable, made of a resilient material, which is resistant for a permanent deformation, and the properties of the material of which the connecting element is made allow for at least such deflection of one of the ends as is the thickness of a stack designed for fastening.</p> |
