ES405719A1 - Improvements introduced in the bitension automatic elevators. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements introduced in the bi-tension automatic lifting devices, which are characterized by comprising a built-in relay, whose coil is connected at one end to two consecutive double sets of tracks arranged in two rotary switches, forming a bridge and at the same time, in the initiation of protected coils corresponding to an autotransformer, and at the other end or the central terminal of a switch of the rotary type, which has several peripherally located silver, including these plots, conductors that end interleaved in the coils enseriadas, having the central terminal of this rotary switch, a derivation that ends in a terminal connectable to the network, finding the other terminal coming from the network, connected to one of the six plots of one of the two rotary switches, being the opposite plot of this switch, where connects a conductor that ends in the corresponding plot of the other rotary switch vo, presenting a derivation terminated in a coil corresponding to an autotransformer, with output terminated in another of the plots of this switch, coming out of another of the plots, a conductor terminated in one of the output terminals for powering the consumer device, being the other output terminal, coming from a relay that acts by overvoltage, disabling the circuit, at the same time that i light a pilot lamp. (Machine-translation by Google Translate, not legally binding)