Shortened cubical parabolic points are suggested which meet requirements set forth in article by author, indexed in Engineering Index 1929, p. 1513, entitled, Form of Railroad Curves, From Feb. 8 and 15, 1929, issues of same journal.
Shortened parabolic switch for electric interurban railroads
Verkuerzte Parabelweiche fuer Ueberlandbahnen
Verkehrstechnik ; n 4
1931
2 Figs.
Report
German
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