Railway rolling stock – Trucks – Overhead crane
Patent
1998-03-31
2000-07-18
Le, Mark T.
Railway rolling stock
Trucks
Overhead crane
1051632, B61F 500
Patent
active
060891645
ABSTRACT:
A gantry system is provided, the gantry system having a gantry cross member supported by at least two essentially parallel support beams supporting the cross member, the axis of movement of the cross member being essentially perpendicular to the at least two parallel support beams, at least two of the support beams each having a horizontal surface and a vertical surface, and at one point of along cross member, the cross member is operatively associated with one of the support beams through a fixed bogy and at another point, the cross member is operatively associated with another of the support beams through a spring bogy. The fixed bogy includes a frame supporting load carrying wheels vertically mounted and effective to roll along the horizontal surface of one of the support beams, and horizontal wheels are effective to roll along the vertical surface of one of the support beams. The spring bogy includes a frame supporting load carrying wheels vertically mounted and effective to roll along the horizontal surface of one of the support beams, and horizontal wheels effective to roll along the vertical surface of one of the support beams, wherein the vertical surfaces face opposite directions and the spring bogy horizontal wheels are urged toward the vertical surface on which it rolls.
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Christensen Del S.
Le Mark T.
Shell Oil Company
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