Railways – Derailment guards – Guide rollers
Patent
1992-10-28
1993-12-07
Le, Mark T.
Railways
Derailment guards
Guide rollers
104106, 104292, 104245, 105170, B61D 300
Patent
active
052675149
ABSTRACT:
A material handling car and track assembly, the assembly comprising a track having a pair of opposed U-shaped rails, and a car having a chassis with four wheel assemblies mounted on the chassis, each of the wheel assemblies comprising a first generally vertical travel wheel movable along a bottom plate portion of the rail, a second generally horizontal travel wheel engagable with a side wall portion of the rail, and a wear block engagable with a top plate portion of the rail.
REFERENCES:
patent: 745855 (1903-12-01), Jackman
patent: 1197260 (1916-09-01), Brown
patent: 1755030 (1930-04-01), Schmeck
patent: 1825468 (1931-09-01), Miller
patent: 3231066 (1966-01-01), Harrison et al.
patent: 3265190 (1966-08-01), Boehm
patent: 4919054 (1990-04-01), Matsuo
patent: 5018928 (1991-05-01), Hartlepp
Bortzfield William C.
DiFonso Gene
Kemp Charles A.
Staehs Joel L.
BAE Automated Systems, Inc.
Le Mark T.
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