Railway switches and signals – Electric actuation – Switch signals
Patent
1994-01-12
1995-09-19
Oberleitner, Robert J.
Railway switches and signals
Electric actuation
Switch signals
246122A, 246253, 246314, 2464733, B61L 700
Patent
active
054510171
ABSTRACT:
A new and improved automatic track switching control apparatus is provided for a switch assembly in a track layout for a lamp-containing model train. The automatic track switching control apparatus includes a first light sensor assembly which is supported by a base and which is located in the vicinity of a switch assembly in the track layout. The first light sensor assembly senses light emitted from a lamp on the lamp-containing model train as it approaches the switch assembly. A signal processing assembly is connected to the first light sensor assembly for receiving the electrical signal representing the approach of the lamp-containing model train to the first light sensor assembly. A switch-flipping assembly is connected to the signal processing assembly for receiving a second electrical signal for controlling switch status of the switch assembly. The signal processing assembly includes a counter assembly for counting first electrical signals provided by the first light sensor assembly. The counter assembly controls a pair of switch assemblies by way of the switch-flipping assembly. The counter assembly controls operation of a resistance clement for providing increased electrical resistance for electrical current supplied to the track layout, such that less current is available in the track layout for driving the lamp-containing model train that rides on the track layout, whereby speed of the lamp-containing model train is reduced when the resistance clement is placed in circuit with the track layout.
REFERENCES:
patent: D330054 (1992-10-01), Plagborg
patent: 1840014 (1932-01-01), Bergstein
patent: 3558876 (1971-01-01), Douglaston
patent: 3802121 (1974-04-01), Nielsen
patent: 3819911 (1974-06-01), Greenaway
patent: 3964701 (1976-06-01), Kacerek
patent: 4185561 (1980-01-01), Reymann
patent: 4223857 (1980-09-01), Hussein
patent: 5169355 (1992-12-01), Tammera
Graff John H.
Narvett Roseann
Do Linh
Oberleitner Robert J.
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