| 摘要 |
<p>Apparatus for cutting a continuously moving ribbon of tile forming material into discrete tiles of equal length and subsequently trimming the leading edge of each tile, comprises means for moving the ribbon past a cutting station and then a trimming station. At at least one of said stations there is provided a knife mounted on a knife holder reciprocable longitudinally of the direction of travel of the ribbon or tiles. The means for reciprocating the knife holder include a crank member adapted to be rotated once for each length of tile that passes said one station, the throw of the crank member being selected so that during the cutting action of the knife the forward linear speed of the knife is first less than, then greater than, and then finally less than the speed of the ribbon or tile being cut.</p> |
