Apparatus for high speed stripping of carded cotton webs

Claim 1

A cotton card for converting fibers into a web, said card comprising a card clothed doffer, a card clothed stripper roll, at least one further card clothed roll and a bare roll mounted respectively one after the other in the direction of movement of the web, each said roll having a length at least equal to the width of said web and the axes of rotation thereof being substantiaLly parallel, means for rotating said doffer and said stripper roll at substantially the same surface speeds, said stripper roll being mounted with its teeth close to, but without penetrating, the teeth of said doffer so that the teeth of said stripper roll engage the fibers on the doffer for transferring the fibers from the doffer to the stripper roll, said further roll being mounted with its teeth close to, but without penetrating, the teeth of said stripper roll, and with its teeth engageable with fibers on said stripper roll, means for rotating said further roll with a surface speed substantially equal to that of said stripper roll, means for detaching the fibers from said further roll in the form of a web, said means comprising a pair of crush rolls, one of which constitutes said bare roll, positioned to grip said web therebetween, said bare roll being mounted with its surface close to the teeth of said further roll and engageable with fibers on the latter, and means for rotating said bare roll in the same angular direction as said further roll with a surface speed greater than that of said further roll.