| 摘要 |
The specification discloses carpet making machinery ( 10 ) with at least one needle head ( 26 ) and an associated loop forming head ( 27 ) disposed on either side of a pile forming station ( 28 ) through which a backing material web ( 29 ) is adapted to move in incremental steps, the needle head ( 26 ) and the loop forming head ( 27 ) being arranged to move relative to the backing material web ( 29 ) at the pile forming station ( 28 ) selectably either in a transverse direction, a longitudinal direction, or both a transverse and a longitudinal direction of the backing material web ( 29 ) with the stitching of pile forming loops ( 96 ) occurring in one direction across the backing material web ( 29 ), the needle head ( 26 ) further including a plurality of needle units ( 47 ) carried by a rotatable carriage ( 66 ) rotatable about an axis ( 45 ), said carriage ( 66 ) being arranged upon rotation to move each said needle unit ( 47 ) selectably to an operative position.
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