GB1099794A - Improvements relating to electrical signalling and control apparatus - Google Patents

Improvements relating to electrical signalling and control apparatus

Info

Publication number
GB1099794A
GB1099794A GB3683565A GB3683565A GB1099794A GB 1099794 A GB1099794 A GB 1099794A GB 3683565 A GB3683565 A GB 3683565A GB 3683565 A GB3683565 A GB 3683565A GB 1099794 A GB1099794 A GB 1099794A
Authority
GB
United Kingdom
Prior art keywords
aug
control apparatus
improvements relating
signalling
central station
Prior art date
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.)
Expired
Application number
GB3683565A
Inventor
William Wheatley
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.)
AVON ELECTRICAL HEANOR Ltd
Original Assignee
AVON ELECTRICAL HEANOR Ltd
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 AVON ELECTRICAL HEANOR Ltd filed Critical AVON ELECTRICAL HEANOR Ltd
Priority to GB3683565A priority Critical patent/GB1099794A/en
Priority to BE678762D priority patent/BE678762A/xx
Publication of GB1099794A publication Critical patent/GB1099794A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • 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
    • B61L23/002—Control or safety means for heart-points and crossings of aerial railways, funicular rack-railway
    • B61L23/005—Automatic control or safety means for points for operator-less railway, e.g. transportation systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Selective Calling Equipment (AREA)

Abstract

1,099,794. Selective signalling. AVON ELECTRICAL (HEANOR) Ltd. Aug. 26, 1966 [Aug. 27, 1965], No. 36835/65. Addition to 1,094,479. Heading G4H. The signalling system described in the parent Specification (in which an active remote control point causes the transmission line to present a corresponding impedance to a central station is modified in that the impedance seen by the central station is automatically balanced (in order to identify the active remote station) by sequentially unshorting a chain of resistors by means of transistors sequentially turned-on by a counter-which also controls a visual indicator-instead of by means of a selfstepping uniselector.
GB3683565A 1965-08-27 1965-08-27 Improvements relating to electrical signalling and control apparatus Expired GB1099794A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3683565A GB1099794A (en) 1965-08-27 1965-08-27 Improvements relating to electrical signalling and control apparatus
BE678762D BE678762A (en) 1965-08-27 1966-03-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3683565A GB1099794A (en) 1965-08-27 1965-08-27 Improvements relating to electrical signalling and control apparatus

Publications (1)

Publication Number Publication Date
GB1099794A true GB1099794A (en) 1968-01-17

Family

ID=10391558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3683565A Expired GB1099794A (en) 1965-08-27 1965-08-27 Improvements relating to electrical signalling and control apparatus

Country Status (2)

Country Link
BE (1) BE678762A (en)
GB (1) GB1099794A (en)

Also Published As

Publication number Publication date
BE678762A (en) 1966-09-01

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