Abstract: The device comprises (FIGS. 1 and 2) a fixed plate 1 provided with radial paths 2 having axes 3; along each path there is disposed an assembly 4 which comprises a wire-holder with a wire guide 10 for the wire 12 and means for moving this wire-holder radially. The paths having axes a, b, c, d, e, f converge at A, those having axes h, i, j, k, l, m at B and that having axis g passes through C without passing through A or B.In a variation, the device (FIGS. 3 to 7) has a common delivery zone for each of the article-holders. Each article-holder comprises, in addition to a stopping position for taking up and a delivery position, a third stopping position for waiting which is located between these two above-mentioned stopping positions, in the vicinity of the delivery position.

Abstract: A filter structure comprising a support and a porous folded sheet having a plurality of cooperating groups of corrugations, wherein the folds of one group overlap at least in part the folds of the adjacent group and have a uniform thickness, length and substantially parallel fold apex lines. On opposed sides, the folded sheet has at least two borders each of which borders has a single group of folds terminating in a frontal edge located in a plane substantially perpendicular to the apex lines of the folds. The borders extend outwardly of the cooperating groups of the corrugations to form an area for contact with the support wherein the borders may be embedded by seal means.