Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
  • B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
  • B61L7/08—Circuitry
  • B61L7/083—Common line wire control using currents of different amplitudes, polarities, frequencies, or the like

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)

Publications (1)

Family

ID=1551106

Family Applications (1)

Country Status (1)

• 0
  • FR FR761927D patent/FR761927A/fr not_active Expired

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