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.)
CHAPMAN WINTHROP MORTON
Original Assignee
CHAPMAN WINTHROP MORTON
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 CHAPMAN WINTHROP MORTONfiledCriticalCHAPMAN WINTHROP MORTON
Application grantedgrantedCritical
Publication of FR320894ApublicationCriticalpatent/FR320894A/en
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
B61L23/08—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only
B61L23/10—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only manually operated, e.g. block arrangements
FR320894D1902-05-051902-05-05
Improvements to the signals of block-systems for railways
ExpiredFR320894A
(en)