Abstract: Methods and devices for automating operation of a welding system are provided. A camera configured for acquiring images in real time of a welding zone comprising a bevel joint is provided. A processor is operatively connected to the welding system and in communication with the camera to receive the images in real time. For each image acquired by the camera, an instant arc position of a welding arc in the bevel joint. The processor then determines an optimal arc position of the welding arc in the bevel joint, and an error between the instant arc position and the optimal arc position. A correction to operating parameters of the welding system to align the instant arc position with the optimal arc position is calculated, and control signals are sent to the welding system to apply the correction to the operating parameters.

Abstract: A linear element, especially a spectacle side, of the type comprising a flexible metal core coated with a flexible elastomer for comfort and/or appearance. Its structure is composed of a plurality of rigid plastic rings placed in fixed positions around predetermined areas of the flexible metal core so that each can serve as a point of intermediate mechanical attachment of the flexible elastomer with respect to the core. The cross section of the rings are inscribed within that of the elastomer surrounding it.

Abstract: A linear element, especially a spectacle side, of the type comprising a flexible metal core coated with a flexible elastomer for comfort and/or appearance. Its structure is composed of a plurality of rigid plastic rings placed in fixed positions around predetermined areas of the flexible metal core so that each can serve as a point of intermediate mechanical attachment of the flexible elastomer with respect to the core. The cross section of the rings are inscribed within that of the elastomer surrounding it.

Abstract: A method for regulating the power supplied to a steam turbine by a pressurized water nuclear reactor driving an electric current generator supplying a network by utilizing the movement of control rods in the reactor and the by-passing of a fraction of the steam produced by the reactor out from the turbine circuit. In the case of electrical uncoupling between the generator and the network or load rejection, the parameter determining the position of the control rods is selected as the greater of two values of a reference temperature. The by-passing of the steam is kept in operation and the operation of the reactor remains automatic. The opening signal for the by-pass valves is modified by a gain signal determined from a signal representing the power level. The invention is particularly applicable to the regulation of the power of pressurized water nuclear power stations.