Transversely removable gantry loader

Details Transversely removable gantry loader Transversely removable gantry loader

1976-11-08

1977-11-01

Spar, Robert J.

Railways

Suspended

Single-rail type

104121, 104246, 105146, E01B 2522

Patent

active

040560643

ABSTRACT:
A gantry loader comprising a horizontally disposed support beam, a railway rail secured to the support beam, the rail including a head, a loader assembly including a carriage selectively displaceable along the beam, the carriage having a first pair of wheels for rollingly engaging the face of the rail head, a second pair of wheels for rollingly engaging one projecting portion of the head, a third pair of wheels for rollingly engaging the other projecting portion of the head, each of the third pair of wheels including a peripheral step selectively facing the first pair of wheels and having a beveled side wall surface, the third pair of wheels being selectively displaceable from a retracted position remote from the rail to an advanced position whereat the base and the beveled side wall surface of the step engage the other projecting head portion, and means for selectively maintaining the third pair of wheels at the advanced position.

REFERENCES:
patent: 2761395 (1956-09-01), Peck
patent: 3212455 (1965-10-01), Workman
patent: 3563179 (1971-02-01), Gorjanc
patent: 3890904 (1975-06-01), Edwards
patent: 4000702 (1977-01-01), Machintoch

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