Abstract: This textile support is intended for the preparation of a tufted product such as an artificial grass or a carpet. It comprises at least one woven or non-woven lay. Technical yarns extend in one or two directions and are joined to the said lay for reinforcing it by knitting on a warp knitting machine, the said technical yams extending on the one hand in the warp direction and on the other in the weft direction on all or part of the width of the said lay.

Abstract: A composite geotextile or construction product for reinforcing a stratum of concrete or of bitumen comprises at least one reinforcing grid consisting of yarns which are mechanically strong in the warp and/or weft directions. It further comprises at least one layer of an openwork textile produced by weaving or knitting, the openwork textile having openings that are smaller than those of the meshes of the grid, the openwork textile being knitted with the grid by means of at least one knitting yarn, in order to obtain a substantial miscibility of the concrete or the bitumen in the composite textile product.

Abstract: The invention concerns a material used in agriculture for increasing the amount of solar radiation received by plants of for modifying its quality, said covering consisting of a planar structure, with greater length than width, comprising reflecting blades (1), juxtaposed in the longitudinal direction of the width and maintained together by a yarn system (2).

Abstract: A tube of flexible material moving longitudinally undergoes transition between annular cross section and flattened straight cross section, without change in the length of perimeter of its cross sections, by one stage of changing between the annular cross section and a rectangular cross section, and another stage of changing between that rectangular cross section and the flattened cross section through successively longer and narrower rectangular cross sections. The method is applicable to material produced by a circular knitting machine. Preferably there is a polyhedral guide within the tube.

Abstract: A multidifferential device of the type comprising a plurality of differentials, whereby each comprises a differential holder with at least two epicyclic gears and two planetary gears and in which the imaginary rotation axis of all the differential holders and planetary gears is the same. The differential holders and planetary gears are designed as rotary members, whereof two serve as input members and one serves as the output member. They comprise two end members and, between them, a plurality of intermediate members in which an end input and output member is constituted as a planetary gear, whereby the epicyclic gears of every other intermediate differential holder member are located at the same radial level relative to said rotation axis. A plurality of intermediate differential holder members each comprises an external or internal planetary gear path on both of its faces. At least one inner or outer epicyclic gear of each end member comprises a planetary gear.