Abstract: An electromagnetic relay has a base provided with an insulation enclosure and with a contact block outwardly of the enclosure. An electromagnet block is received within the enclosure and includes a coil, yokes, and an armature extending through the coil along the length of the enclosure. The armature is magnetically coupled to the coil and is movable relative to the yokes upon energization of the coil. A card is provided to connect the armature and a movable contact of the contact block for closing and opening the contact. A cover fitted on the base includes an insulation partition which extends between the enclosure and the contact block to accomplish a double-wall insulation between the electromagnet and the contact block. The card has a trunk for connection with the armature and a crosspiece for connection with the movable contact.

Abstract: A switching system for selectively distributing a laser beam from a laser source to one of a plurality of welding stations for laser welding thereat. The system includes a first optical fiber directing the laser beam therethrough, and a pair of second optical fibers leading to the welding stations, respectively. A switching device connects the first optical fiber selectively to one of the second optical fibers so as to pass the laser beam to the corresponding welding station for enabling the laser welding thereat. The switching device comprises a housing having a longitudinal axis and holding input ends of the second optical fibers in parallel relation with the longitudinal axis, a carrier supporting an output end of the first optical fiber and linearly movable together therewith within the housing in a direction perpendicular to the longitudinal axis such that the output end of the first optical fiber comes into and out of closely end-to-end facing relation to the input ends of the second optical fibers.