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.)
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
B61L5/12—Visible signals
B61L5/14—Form signals, e.g. semaphore arms
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Valves And Accessory Devices For Braking Systems
(AREA)
Vorrichtung an pneumatischen Bremseinrichtungen, welche mit Hilfsluftbehälter und Sandstreuapparat ausgerüstet sind, zur Betätigung des letzteren unter Verwendung von Luft aus dem ersteren.