Switchable high speed frog mechanism
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United States of America Patent
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Feb 21, 1995
Grant Date -
N/A
app pub date -
Jul 16, 1993
filing date -
Jul 16, 1993
priority date (Note) -
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Abstract
A high speed frog including a ductile iron main pan casting having an integral straight approach runner, an integral straight exit runner, and an integral exit turnout runner, a movable runner having a pair of guide rails, an electric solenoid for rotating the movable runner so that one of said pair of guide rails is cooperatively associated with the stationary runner, diverts a sliding contact shoe to the turn-out runner, a mechanical deflector engageable for resetting the movable runner so that the other of the pair of guide rails engages the integral straight approach runner, and a renewable runner insert disposed between integral straight approach runner and the respective guide rails of the movable runner.
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