Abstract: An end connector of a corrugated tube made of plastic material has a tubular elastomeric body produced by co-molding onto an end of the corrugated tube. The elastomeric body includes a connection portion arranged outside the corrugated tube and shaped for connection to an external component, and by an anchorage portion arranged inside the corrugated tube so as to fill grooves of the corrugated wall. A tubular insert which is made of plastic material and is partially incorporated in the elastomeric body and has a stem portion extending inside the corrugated tube and a flange portion which is in abutment with the end of the corrugated tube. The stem portion includes an anchorage zone provided with lateral ducts, in the region of the anchorage zone the stem portion of the insert is attached to the corrugated tube by the anchorage portion of the elastomeric body.

Abstract: An end connector of a corrugated tube made of plastic material has a tubular elastomeric body produced by co-moulding onto an end of the corrugated tube. The elastomeric body includes a connection portion arranged outside the corrugated tube and shaped for connection to an external component, and by an anchorage portion arranged inside the corrugated tube so as to fill grooves of the corrugated wall. A tubular insert which is made of plastic material and is partially incorporated in the elastomeric body and has a stem portion extending inside the corrugated tube and a flange portion which is in abutment with the end of the corrugated tube. The stem portion includes an anchorage zone provided with lateral ducts, in the region of the anchorage zone the stem portion of the insert is attached to the corrugated tube by the anchorage portion of the elastomeric body.

Abstract: A crank mechanism is provided which has a first driven member constituted by a first shaft, and a second driven member constituted by a sleeve member-disposed around said first shaft. The sleeve member is retained in support means such that the sleeve member and the first shaft can rotate relatively to one another. A rotating arm is connected to the sleeve member, and attachment means is slidable along said rotating arm. First linkage means is provided between said attachment means and said first shaft, and second linkage means is provided between said sleeve member and said first shaft, whereby said attachment means can selectively describe any of a range of circular or elliptical paths. In the preferred embodiment, the linkage means are adjustable and include a counter-rotating arm associated with said first shaft, and a second shaft and a third shaft and gears associated therewith and with said first shaft, which gears transmit rotational movement from said first shaft to said sleeve member.

Abstract: A composition which is stable in a medium in which the pH is greater than or equal to 5.5 and which permits the release of an active substance in a medium in which the pH is less than or equal to 3.5, comprising the active substance, which contains inclusions of, or which is completely or partially covered by, a pH sensitive material whose extent and/or rate of swelling is greater in an acidic medium than in a neutral medium, and a coating of a hydrophobic layer.

Abstract: An aqueous solution of an alkali metal salt of methionine, which can be used as an additive in feedstuffs, is made by hydrolysis of methionine amide with an alkali metal hydroxide.

Abstract: An aqueous solution of an alkali metal salt of methionine, which can be used as an additive in feedstuffs, is made by hydrolysis of methionine amide with an alkali metal hydroxide.

Abstract: Polylysine and/or polymethionylpolylysine are advantageously incorporated in compositions for feeding animals, especially ruminants, to provide assimilable lysine and methionine.

Abstract: Composition for coating a biologically active substance, which is stable in a medium of which the pH is greater than or equal to 5, and which permits the release of the active substance in a medium of which the pH is less than or equal to 3.5, and biologically active substances when surrounded by this composition.

Abstract: N-[2,3-(O-Isopropylidene)-(D)-ribityl]-3,4-xylidine is a new compound, which can be used as an intermediate for the preparation of N-(D)-ribityl-3,4-xylidine.

Abstract: Guanidine pantoate, which is a new salt of pantoic acid, is of use in the preparation of the optically active isomers of pantolactone and therefrom D-pantothenic acid.

Abstract: Calcium diacetone-2-ketogulonate, which is a new therapeutically useful compound.

Abstract: Calcium diacetone-2-ketogulonate, which is a new therapeutically useful compound.