Drawing device for sliver

A device for drawing sliver comprising two endless elements moving in unison and one located above the other and forming therebetween a working zone through which the sliver passes for the control and retention of the sliver, 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 first transverse bars extending between said pair of endless chains and being hinged relative to one another by said endless chains, each of said first transverse bars having a first relatively flat convex active surface facing inwardly toward the other said endless element as said first transverse bars traverse the working zone, said first transverse bars being spaced closely apart so that the first convex active surfaces of said transverse bars form a materially continuous apron in the working zone, the first convex active surfaces of said first transverse bars each having a crown portion located closest to the other said endless element as said first transverse bars traverse said working zone with the crown portion forming a contact surface for the sliver, a plurality of penetration members formed on and projecting outwardly from said first convex active surface toward the other said endless element as said first 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 first convex active surface on which they are located, said penetration members arranged in a row extending transversely across said first convex active surface and the other of said two endless elements comprises a succession of second transverse bars hinged to one another and each having a second convex active surface facing toward the one of said two endless elements in said working zone, two successive said second active surfaces in said working zone defining therebetween a space for receiving the row of said penetration members on said first convex surface located opposite the space and said second active surfaces cooperating with the crown portions on said first active surfaces for controlling the sliver, each said second transverse bar comprises an elongated transverse strip which in said working zone faces toward and is spaced from an oppositely disposed one of said first transverse bars, and a flexible lip secured to and extending from each said transverse strip toward the oppositely disposed one of said first transverse bars and the surface of said flexible lip spaced from said transverse strip forms said second convex active surface thereon and said second convex active surface applies the sliver to the first convex active surface of said first transverse bars.