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.)
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.)
THOMAS EVANS JAMES
WILLIAM BRADWIN VARIAN
Original Assignee
THOMAS EVANS JAMES
WILLIAM BRADWIN VARIAN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by THOMAS EVANS JAMES, WILLIAM BRADWIN VARIANfiledCriticalTHOMAS EVANS JAMES
Application grantedgrantedCritical
Publication of FR444156ApublicationCriticalpatent/FR444156A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
B61L3/16—Continuous control along the route
B61L3/18—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train
B61L3/185—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train using separate conductors
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR444156D1912-04-201912-04-20Moyens perfectionnés appliqués aux chemins de fer et aux véhicules de chemins de fer pour empecher les accidents
ExpiredFR444156A
(fr)