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
  • B61L7/067—Supply for electric safety arrangements
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
  • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
  • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
  • H03K3/30—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using a transformer for feedback, e.g. blocking oscillator

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Mechanical Engineering (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22321184

Family Applications (1)

Country Status (3)

• 1971
  • 1971-10-05 AU AU34169/71A patent/AU3416971A/en not_active Expired
  • 1971-12-02 GB GB5606671A patent/GB1367650A/en not_active Expired
• 1972
  • 1972-01-14 CA CA132,420A patent/CA974612A/en not_active Expired

Also Published As

Similar Documents