Railways – Trolley rails
Patent
1978-08-28
1980-05-27
Peters, Jr., Joseph F.
Railways
Trolley rails
104118, 198838, E01B 2522
Patent
active
042044774
ABSTRACT:
A carriage guidance system is disclosed which employs an endless track defining upper and lower parallel track-ways adapted to receive guide rollers mounted on a carriage for rotation about vertical coplanar axes. The track also defines an intermediate track-way adapted to receive horizontal support rollers mounted on the carriage plate. The track-ways and carriage rollers cooperate in a manner to increase the allowable manufacturing and assembly tolerance range, and facilitate relatively easy removal of the carriage plate from the guide track.
REFERENCES:
patent: 3548122 (1970-12-01), Hay
patent: 3606839 (1971-09-01), Stafford et al.
patent: 4150625 (1979-04-01), Cowan
Holstein John H.
Peters Jr. Joseph F.
Weaver Ross
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