| 摘要 |
<p>The painting board carries a paper roll. The housing has a level upper surface as a support for an unrolled piece of paper. The top end of the surface has a recess to accommodate an unrolling mechanism for the paper, held removably on a side retaining strap. The unrolling device has two parallel flanks, connected by a rail. Facing sides of the flanks have bearing pivots for the paper roll. The outer flank sides have a slot for pushing onto projections on the retaining straps. The length of the projections corresponds to the dia. of recesses in the flanks, while the projection width corresponds to that of the slots. In a first position, the unrolling device is pushed onto the projections; while in a second position, it is locked on them.</p> |
