Rolling device for a displaceable cross frog
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United States of America Patent
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Jun 20, 2006
Grant Date -
Jul 28, 2005
app pub date -
Apr 23, 2003
filing date -
Apr 23, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
In a roller device (6,7) for a movable point of frog (1), including a sliding strip (18) and at least one roller (11) and at least one roller bearing (12) fixed to a stationary part of the switch, the roller(s) (11) is/are mounted on an arm (19) of a double-armed lever (10). The pivot bearing (12) of the lever (10) is arranged in a support (13) connected with a stationary part of the switch, wherein the arm (18) facing away from the roller(s) (11), of the double-armed lever (10) is pivotable against a spring (19) with adjustable spring power.
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