1. An apparatus for stopping a travelling-wave loom when its weft thread carriers encounter an obstacle in the shed, comprising: a loom drive; an electric control circuit of said drive, provided with a power supply; a guideway for guiding and orienting the weft thread carriers in the shed, located in said shed and electrically connected to one of the poles of the power supply of said control circuit; movable contacts mounted in the weft thread carriers and protruding therefrom when these carriers encounter an obstacle in the shed to come in electrical contact with said guideway; a lining made of a conductive pile material arranged outside the shed along said guideway so that its piles pass between the warp threads inside the shed, said lining being connected to the opposite pole of the power supply of said control circuit and to the carriers moving in the shed, the piles of the lining being in permanent electric connection with the contacts of the carriers, as a result of which the very moment the carrier engages an obstacle in the shed, its contacts, while touching the guideway, cause the control circuit for the loom to be stopped.

6. An apparatus for stopping weft thread carriers of a travelling-wave loom upon having encountered an obstacle in the shed, comprising electrically motivated drive means for driving the loom; electrical circuit control means, including a pair of electrical contacts, for energizing said drive means when said pair of contacts are in a ''''make'''' condition and for deenergizing said drive means when said pair of contacts are in a ''''break'''' condition; electrically conductive guideway means for guiding and orienting the weft thread carriers in the shed and electrically connected to one of said contacts; movable contacts movably mounted in the weft thread carriers and protruding therefrom only when the carriers encounter an obstacle in the shed; a lining made of a conductive pile material arranged outside the shed along said guideway so that its piles pass between the warp threads proximate to the weft thread carriers, said lining being connected to the other of said pair of contacts, electrically conductive means for contacting said lining piles and providing electrical continuity between said lining and said movable contacts independently of the positions of the carriers along said guideway means, whereby engagement of an obstacle by the carrier in the shed causes said movable contacts to touch said guideway means to provide a ''''make'''' condition of said pair of contacts and said electrical control means deenergizes said drive means to stop the loom.