Improvements in Electric Current Conducting Apparatus for Electric Railways with Underground Feed.

Реферат: 6778. Stendebach, C. F. P., and Linker, O. H. March 15. Electric railways and tramways on a road contact system with or without a conduit in which the switches are operated mechanically. Conductors; switches; collectors.-In Fig. 1 the switch is contained in a box A which may also act as a support for the rails. The lower contact G is connected to the conductor, and the upper one G<1> is carried inside the bell-shaped cover, which is depressed against a spring F<5> by the collector. A mercury seal for this cover X is arranged at Q, and a roller R on its top forms a bearing-surface for the collector. This long collector is made in sections hinged &c. together so as to round curves, and carries a continuous cable K<1> with conducting extensions k<1> embedded in insulating-material K<2>. In a modified form, the switch is placed at the side, as in Fig. 3, and is operated through a push R<1> and lever H<3>, while another lever D throws out a contact K<3> to touch the conducting-surface of the collector. Fig. 5 shows another form, placed in the road between the rails. A treadle H' depressed by the wheels &c. lifts the stud D<2>, which is electrically and mechanically connected to the contact G<3>, and throws in the bolt L<1> to hold it raised. When the second wheel of the vehicle depresses the treadle, the bolt L<1> is withdrawn and the stud &c. D<2> falls. These actions are performed by the lever H<6> pivoted on the end of the lever H<5>, worked by the treadle, and arranged so that it acts under the shoulder d', and alternately on each side of the bolt lever L. In a modification, the depressions of the treadle alternately raise and lower an eccentric segment which carries a rubbing-surface for the collector, and also acts on a switch similar to those in Figs. 1 and 3.