Safety device, essentially characterized in that it is constituted by a pivoting clamp at a mid-point, which tends to close by the constant action of a spring, whose clamp fixed to the inside of the steering wheel by one of its parts, keeps its other part free and it has two pairs of contacts in the jaws that tend to stay connected by the closing action of the clamp whose contacts are connected on one side, one of them, with a current conductor and the other with the horn, while on the other hand side or part of jaw, it is one with a cable topped in a bracelet or ring and the other connected to ground, so that when these contacts close circuit, the ring or bracelet is electrically charged and the horn is put to work. (Machine-translation by Google Translate, not legally binding)
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