CA859261A - Logic circuitry for railroad crossing systems - Google Patents

Logic circuitry for railroad crossing systems

Info

Publication number
CA859261A
CA859261A CA859261A CA859261DA CA859261A CA 859261 A CA859261 A CA 859261A CA 859261 A CA859261 A CA 859261A CA 859261D A CA859261D A CA 859261DA CA 859261 A CA859261 A CA 859261A
Authority
CA
Canada
Prior art keywords
logic circuitry
railroad crossing
crossing systems
systems
railroad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA859261A
Inventor
W. Wetmore Arthur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPX Corp
Original Assignee
Arthur W Wetmore
General Signal Corp
Publication date
Application granted granted Critical
Publication of CA859261A publication Critical patent/CA859261A/en
Expired legal-status Critical Current

Links

CA859261A Logic circuitry for railroad crossing systems Expired CA859261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA859261T

Publications (1)

Publication Number Publication Date
CA859261A true CA859261A (en) 1970-12-22

Family

ID=36344719

Family Applications (1)

Application Number Title Priority Date Filing Date
CA859261A Expired CA859261A (en) Logic circuitry for railroad crossing systems

Country Status (1)

Country Link
CA (1) CA859261A (en)

Similar Documents

Publication Publication Date Title
CA945816A (en) Railway system
CA957226A (en) Damped valve train system
CA921329A (en) Railway vehicles
CA946684A (en) Sway-stabilized railroad car
CA919020A (en) Elevated railway system
CA943660A (en) Railway signal system
CA925060A (en) Railroad car retarders
CA859261A (en) Logic circuitry for railroad crossing systems
CA906591A (en) Logic circuitry for railroad crossing systems
AU411274B2 (en) Railway track
CA834469A (en) Railroad crossing gate
CA817088A (en) Railroad car
CA814720A (en) Railroad car
CA798731A (en) Railway track
CA812104A (en) Railroad rails
CA827432A (en) Railroad track maintenance
CA806427A (en) Railway car
CA830224A (en) Railway car
CA718231A (en) Railway cars
CA834838A (en) Railroad classification yard control system
CA796150A (en) Railroad car
CA782828A (en) Railroad car stop
AU411525B2 (en) Railway bogie
AU290743B2 (en) Illuminated track diagram for railway signalling systems
CA920430A (en) Railway bogies