Border ledges attachment method for stencil sheets - uses border ledges of pipe-shaped cross=section having milled projections in their opening slots

摘要

A system is used for attaching border ledges to stencil sheets. The border ledges have a pipe-shaped cross section with an opening slot extending in a longitudinal direction. The border ledges used have milled projections extending into their opening slots which cut out a section of material during the sliding on to the stencil sheet. The milled projections are positioned in pairs lying opposite to each other and extend transverse to the length of the opening slot and over the whole of its width. The border ledges thus grip firmly onto the sheets.