Abstract: Device for manufacturing a part using a method of selective fusion or selective sintering on a powder bed comprising a build plate having a working surface, parallel to a first direction and to a second direction, on which surface the part is intended to be manufactured, a wiper which is placed on the working surface and capable of moving and spreading the powder in the first direction on the working surface, characterized in that it further includes at least two acoustic sensors which are fixed and spaced in the second direction on the wiper and capable of detecting an acoustic signal; a laser range finder pointing in the first direction and capable of determining a position of the wiper in the first direction; and a control system capable of detecting an anomaly on the basis of said acoustic signal and of determining a position of the anomaly.

Abstract: The present invention relates to a nickel-based superalloy with a high ?? phase content, intended for the manufacture of components by additive manufacturing followed by heat treatment, characterized in that its composition comprises, in percentages by weight of the total composition: Cr: 15.5-16.5; Co: 7.7-11; Mo+W=5.5-7.5; Al: 2.9-4.3; Ti: 2.6-3.2; Ta: 1.5-2.2; Nb: 0.3-1.1; C: 0.01-0.13; B: 0.0005-0.015; Zr: 0.01; Hf: 0.0001-0.5; Si: ?0.06; Ni: balance, and also the unavoidable impurities. It further relates to a method for manufacturing superalloy powder and turbine components.

Abstract: This invention relates to novel piperidines substituted on the nitrogen atom with a (phenyloxo alkyl) group as well as the processes for their production.

Abstract: This invention relates to novel tri-substituted guanidines linked to a piperidine ring.More specifically, it relates to cyanoguanidines of formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 are substituentsn is an integer of zero to 1n' is an integer of zero to 1A and B are --CH.sub.2 --, CHOH, --CO-- or a single bondas well as the acid addition salts thereof with a mineral or organic acid.The compounds have interesting pharmacological properties which make them useful as active ingredient of medicines, e.g. antihypertensives.

Abstract: This invention relates to new chemical compounds which are derivatives of 2,5-diaminodiazoles.It relates more particularly to new 2-amino 5-(aralkylamino piperidino alkyl) diazoles.These compounds and the acid addition salts thereof have interesting therapeutical properties, particularly anti-hypertensive properties which make them useful as active ingredient of pharmaceutical compositions.

Abstract: Process for the lateral positioning of a member relative to a joint formed between two metal surfaces and having discontinuities and using at least one eddy current probe, wherein the signal supplied by each of the probes are processed to obtain at least one positioning signal varying with the displacement of the axis of the corresponding probe relative to the axis of the joint and at least one signal indicating the presence of a discontinuity and transmitted when the corresponding probe faces a discontinuity of the joint, wherein the member is laterally displaced as a function of variations of the positioning signal and wherein the control of the displacement of said member is interrupted as a function of variations of the positioning signal when a signal indicating the presence of a discontinuity is transmitted.The invention also relates to an apparatus for performing this process.

Abstract: This invention relates to benzodioxanylalkylpiperidines, to processes for producing them and to the pharmaceutical compositions containing such compounds as active ingredient.This invention also relates to a method for treating hypertension in hypertensive mammals.

Abstract: The invention relates to a system for detecting and locating surface discontinuity by a light beam; it is more particularly intended for detecting any discontinuity forming a line on this surface, or any discontinuity forming two opposite lines on this surface. In the latter case, this discontinuity may, for example, be the join defined by the opposite edges of two metal sheets to be welded.

Abstract: The invention relates to an automatic and self-adapting process for fusion-welding a joint between two surfaces, with the aid of a welding head which essentially comprises a joint detector and a torch supported by a carrier mobile along the joint. This welding head is mobile in rotation about a main axis related to the carrier and substantially perpendicular to the plane tangential to the surfaces to be welded at the location of the joint, and mobile in translation along this main axis. The torch and the detector are mobile in rotation about a secondary axis related to the head and parallel to the main axis and the torch is able to pass through the main axis in the course of its rotation about the secondary axis.A reference direction for all the degrees of freedom of the head is defined when the above-mentioned axes as well as the axes of the torch and the detector are in the same plane.