Low profile switch machine with hand throw or motor throw selector device
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United States of America Patent
Stats
-
Feb 27, 1996
Grant Date -
N/A
app pub date -
Aug 19, 1994
filing date -
Aug 19, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A switch machine for railroad tracks is provided having a low vertical profile without increasing the axial length of existing switch machines. Also, the capability of being operated by an electric motor, hand crank or hand throw operation has been retained within these new dimensional constraints. A particular electric motor and gearbox combination permits a low overall profile due to its compact size. A worm gear shaft serves the dual purpose of driving a worm wheel and coupling to a hand crank, thus maintaining the low profile while increasing the functionality of the shaft. In addition, a hand throw drive shaft is provided adjacent to a crank drive shaft in order to provide a hand throw operation while further maintaining the low profile of the switch machine.
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Cited Art Landscape
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