Overhead railway system with tubular rails - has four rails braced together in square arrangement supporting bogies with flangeless wheels

摘要

The system accommodates carriages which are slung underneath the bogies so as to be able to swing across the line of travel. The bogies are rigidly guided on the lower two rails (11) and incorporating two or more carrier rollers with a virtually vertical pivotal axis. There are auxiliary rollers (10) lying against the rails from underneath, while the side guiding rollers (7) are mounted laterally to the rails (11). The structure may be made up from four tubular rails (11, 12), forming the corners of a rectangle as viewed in cross-section, the bottom two serving as running rails, with the top two as upper chords, against which auxiliary rollers may bear.