ZA739558B - Improvements in electronic equipment - Google Patents

Improvements in electronic equipment

Info

Publication number
ZA739558B
ZA739558B ZA739558A ZA739558A ZA739558B ZA 739558 B ZA739558 B ZA 739558B ZA 739558 A ZA739558 A ZA 739558A ZA 739558 A ZA739558 A ZA 739558A ZA 739558 B ZA739558 B ZA 739558B
Authority
ZA
South Africa
Prior art keywords
electronic equipment
electronic
equipment
Prior art date
Application number
ZA739558A
Inventor
E Moorey
Original Assignee
Western Industries Pty
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 Western Industries Pty filed Critical Western Industries Pty
Priority to ZA739558A priority Critical patent/ZA739558B/en
Priority to DE19742450159 priority patent/DE2450159A1/en
Publication of ZA739558B publication Critical patent/ZA739558B/en
Priority to FR7441506A priority patent/FR2255606A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/165—Electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/167—Circuit details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
ZA739558A 1973-12-19 1973-12-19 Improvements in electronic equipment ZA739558B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ZA739558A ZA739558B (en) 1973-12-19 1973-12-19 Improvements in electronic equipment
DE19742450159 DE2450159A1 (en) 1973-12-19 1974-10-22 DEVICE FOR MONITORING AN AC SIGNAL
FR7441506A FR2255606A1 (en) 1973-12-19 1974-12-17 AC signal monitor - has biased op. amp. for constant output signal low

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA739558A ZA739558B (en) 1973-12-19 1973-12-19 Improvements in electronic equipment

Publications (1)

Publication Number Publication Date
ZA739558B true ZA739558B (en) 1974-11-27

Family

ID=25567175

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA739558A ZA739558B (en) 1973-12-19 1973-12-19 Improvements in electronic equipment

Country Status (3)

Country Link
DE (1) DE2450159A1 (en)
FR (1) FR2255606A1 (en)
ZA (1) ZA739558B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL414742A1 (en) * 2015-11-10 2017-05-22 Voestaloine Signaling Sopot Spółka Z Ograniczoną Opdpowiedzialnością Method and the system for detecting the presence of the rail vehicle wheel

Also Published As

Publication number Publication date
FR2255606A1 (en) 1975-07-18
DE2450159A1 (en) 1975-07-03

Similar Documents

Publication Publication Date Title
IL43524A0 (en) An electronic calculator
AU7131474A (en) Printed circuit
JPS56124256A (en) Integrated circuit
AU6613374A (en) Integrated circuit structure
AU6437374A (en) Closed circuit breathing apparatus
GB1442151A (en) Electronic hybrid
AU8282675A (en) Electronic wattmeter
ZA74784B (en) Electronic keyboard
HK67779A (en) Electronic components
AU6352673A (en) Electronic calculator
GB1438263A (en) Linematching circuit
ZA743877B (en) Improvements in or relating to access equipment
ZA741755B (en) Improvements in fastening devices
AU7590674A (en) Electronic controls
AU6117473A (en) Circuit arrangements
AU6541374A (en) Electronic music
AU6939574A (en) Electronic organ
ZA739558B (en) Improvements in electronic equipment
IL46004A0 (en) Improvements in sports equipment
AU7875875A (en) Electronic chirper
ZA748160B (en) Improvements in shutterings
AU6982574A (en) Circuit
HK58477A (en) Improvements in cine-cameras
AU469212B2 (en) Improvements in electronic signalling
AU7019074A (en) Circuit arrangement