Drawing device for sliver

A device for drawing silver comprising two endless elements moving in unison and one located above the other and forming therebetween a working zone through which the silver passes for the control and retention of the silver, at least one of said two endless elements comprising an assembly, said assembly comprising a pair of laterally spaced endless chains mounted for movement on a closed circuit with a portion of the circuit traversing the working zone, a plurality of transverse bars extending between said pair of endless chains and being hinged relative to one another by said endless chains, each of said transverse bars having a convex cylindrical active surface facing inwardly toward the other said endless element as said transverse bars traverse the working zone, the convex cylindrical active surface of said transverse bars forming a materially continuous apron in the working zone, the convex cylindrical active surface of said transverse bars each having a crown portion located closest to the other said endless element as said transverse bars traverse said working zone with the crown portion forming a contact surface for the silver, a plurality of penetration members formed on and projecting outwardly from said convex cylindrical active surface toward the other said endless element as said transverse bars traverse the working zone, said penetration members being offset in the direction of movement of said endless elements through the working zone from the crown portion of said convex cylindrical active surface on which they are located, only one of said two endless moving elements comprising said transverse bars, and the other of said two endless moving elements is constituted by a succession of transverse bars hinged to one another and having grooves for the passage of said penetration members of said one endless moving element and smoothed raised portions for controlling the silver.