Importance

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Abstract

An orienter is formed by a plurality of decks including a upper deck, a bottom deck and at least one intermediate deck stacked one above the other, substantially vertically extending passages are defined in each of the decks, the width of the passages of the bottom deck is preselected to a width Y.sub.B sufficiently small to ensure the orientation of the strands to the desired mean orientation and relative to a direction substantially perpendicular to the direction in which the width have passages measured. The width of the passages above the lower deck are made progressively larger in accordance with the following formula: 2.sup.n-1 Y.sub.B where n is the number of decks above the mat and Y.sub.B is the width of the passages through the bottom deck. The side passages in all the decks are substantially aligned vertically, with both the passages in the top deck bisected in two equal passages in the deck immediately therebelow.

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First Claim