Reciprocating Transverse Guide, Condenser, Or Roll Patents (Class 19/287)
  • Patent number: 6012277
    Abstract: A yarn is spun by dividing a traveling fiber assembly into a plurality of fiber sub-assemblies, causing the sub-assemblies to traverse different paths and then recombining them, wherein the paths are sufficiently proximate for fibers to continuously transfer from one or more of the sub-assemblies and be drawn onto or into another or other sub-assemblies. Also disclosed is a method for forming a yarn comprising twisting a plurality of fiber sub-assemblies together at a convergence point to form a fiber assembly being a yarn, and further including cyclically altering the relative twist propagation in and/or into the sub-assemblies upstream of the convergence point. Still further disclosed are alternative methods involving cyclic variation of paths traversed by the sub-assemblies, and cyclic alteration of the relative positions of the sub-assemblies. Apparatus is described for carrying out each method.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: January 11, 2000
    Assignee: Commonwealth Scientific & Industrial Research Organisation
    Inventors: Martin Willem Prins, Peter Ronald Lamb, Geoffrey Robert Stewart Naylor, Xiaoming Tao
  • Patent number: 5379488
    Abstract: A sliver guiding arrangement for drafting units of spinning machines is provided with forcibly traversing sliver guides. Two sliver guides respectively which are assigned to adjacent slivers and which are connected in front of a wedge-shaped gap of a clamping roller pair, are connected with one another by a coupling member to form one structural member. The coupling member is driven via a driving device by a traversing rod to carry out traversing movements. The driving device, which bridges a distance between the traversing rod and the coupling member, is movable relative to the coupling member in the direction of the wedge-shaped gap. The structural member, which includes the sliver guides, is guided in parallel to the wedge-shaped gap on a sliding surface.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: January 10, 1995
    Assignee: Hans Stahlecker
    Inventor: Fritz Stahlecker