Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • 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 trains
  • B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
  • B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
  • B61L23/16—Track circuits specially adapted for section blocking
  • B61L23/168—Track circuits specially adapted for section blocking using coded current
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
  • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
  • H03B19/03—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using non-linear inductance
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03F—AMPLIFIERS
  • H03F9/00—Magnetic amplifiers

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Physics & Mathematics (AREA)
• Nonlinear Science (AREA)
• Mechanical Engineering (AREA)
• Train Traffic Observation, Control, And Security (AREA)
• Magnetic Bearings And Hydrostatic Bearings (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=20323181

Family Applications (1)

Country Status (4)

• 0
  • NL NL6608811.A patent/NL163631B/xx unknown
  • BE BE505601D patent/BE505601A/xx unknown
• 1951
  • 1951-08-23 DE DES24538A patent/DE874791C/de not_active Expired
  • 1951-08-28 GB GB20261/51A patent/GB743573A/en not_active Expired

Also Published As

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