Underframe for a rail-borne vehicle for the freely movable transport of loads
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United States of America Patent
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-
Sep 24, 2002
Grant Date -
N/A
app pub date -
Aug 25, 2000
filing date -
Aug 25, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an underframe for a rail-borne vehicle for transporting freely movable loads, more specifically the underframe of a railroad crane. The underframe has a plurality of curve-negotiating wheel sets which are accommodated in bogies and mounted in a running-gear frame for rolling on running rails. A supporting-wheel set including two supporting wheels is provided to selectively relieve the load on the curve-negotiating wheel sets. The supporting-wheel set is fastened to the vehicle so that the supporting wheels may be raised to a rest position above the running rails and lowered from the rest position to an operative position in which the supporting wheel rests with adjustable pressure on the running rails.
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