| 摘要 |
<p>The invention relates to a railway switchgear extended from three to four directions of access. According to the invention, the switchgear consists of a pair of leftwards curved rails (19R), a pair of rightwards curved rails (19D) and a pair of straight rails (19L), which are fixed on the side BC of the load framework ABCD by means of the fastening device (72), a bifilar system of electrical insulation of the railway circuit being attached to the said extended switchgear, the mobile rails (1) being handled and locked by means of the mechanisms (m9 and m6) and the electric mechanisms (51 and 53) controlled from an electric panel (52), so that the switchgear is extended from three directions to four directions.</p> |
