ZA6634B - Improvements in safety circuits incorporating saturable reactors - Google Patents
Improvements in safety circuits incorporating saturable reactors Download PDFInfo
- Publication number
- ZA6634B ZA6634B ZA660034A ZA660034A ZA6634B ZA 6634 B ZA6634 B ZA 6634B ZA 660034 A ZA660034 A ZA 660034A ZA 660034 A ZA660034 A ZA 660034A ZA 6634 B ZA6634 B ZA 6634B
- Authority
- ZA
- South Africa
- Prior art keywords
- van
- die
- safety circuits
- saturable reactors
- circuits incorporating
- Prior art date
Links
- 241001136792 Alle Species 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F9/00—Magnetic amplifiers
- H03F9/02—Magnetic amplifiers current-controlled, i.e. the load current flowing in both directions through a main coil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/08—Operation of gates; Combined operation of gates and signals
- B61L29/18—Operation by approaching rail vehicle or train
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
- B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
- B61L29/288—Wiring diagram of the signal control circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
- B61L5/1809—Daylight signals
- B61L5/1881—Wiring diagrams for power supply, control or testing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F9/00—Magnetic amplifiers
- H03F9/04—Magnetic amplifiers voltage-controlled, i.e. the load current flowing in only one direction through a main coil, e.g. Logan circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Control Of Electrical Variables (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
* G.P.-5.0731442—1966-67—8,000. HN. 44, pn <7 8
REPUBLIC i fits REPUBLIEK
SOUTH AFRICA. 4} gL ) SOID-AFRIKA
ANE INN .
No 66/0034 To Nad 0. —— EX (ror ORD
DEPARTMENT OF COMMERCE AND INDUSTRIES. —DEPARTEMENT VAN HANDEL EN NYWERHEID.
NABSHAAL ~~ ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) has/have pursuant to the Patents Act, 1952, made application for Letters Patent for an invention for 3 ingevolge die Wet op Patente, 1952, aansoek gedoen het om ’n Patentbrief vir n uitvinding vir IMPROVEMENTS IN
SAFETY CIRCUITS INCORPORATING SATURABLE REACTORS and hasfhave made a declaration that he/they . : en *n verklaring gedoen het dat hy/hulle are the assignees of JEAN DEMEUR who claims to be the inventors thereof and that there is no lawful ground for objection to the grant of a Patent to him/them and has/have by a complete die vitvinders daarvan is en dat daar geen wettige rede vir beswaar daarteen bestaan dat ’n Patent aan hom/hulle toegestaan word nie en deur specification fully described and ascertained the invention; middel van 'n volledige spesifikasie die uitvinding volledig beskryf en vasgestel het;
NOW, THEREFORE,
SO IS DIT DAT AAN
ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) (hereinafter called the patentees) is/are granted full power, sole privilege, and authority that the said patentee/s by himself/themselves, (hieronder die patenthouer/s genoem) volmag, alleenvoorreg, en magtiging verleen word dat genoemde patenthouer/s self, sy/hulle agente his/their agents, or licensees, and no others, may at all times hereafter, during the term mentioned herein, make, use, exercise and vend the of lisensiehouers, en niemand anders nie, te alle tye hierna gedurende die termyn hierin genoem, genoemde uitvinding in die Republiek van said invention within the Republic of South Africa, in such manner as to him/them seems meet, and that the said patentee/s shall have and
Suid-Afrika op 'n wyse wat hy/hulle goedvind, kan maak, gebruik, aanwend en verkoop, en dat genoemde patenthouer/s gedurende die eajoy the whole profit and advantage from time to time accruing by reason of the said invention during the term of Sixteen Years from tydperk van Sestien Jaar met ingang van 3rd January, 1966, die volle wins en voordeel het en geniet wat van tyd’tot tyd deur genoemde uitvinding opgelewer word.
PROVIDED ALWAYS that these Letters Patent shall be granted subject to the provisions of the said Act.
MET DIEN VERSTANDE ALTYD dat hierdie Patentbrief behoudens die bepalings van genoemde Wet toegestaan word.
IN WITNESS WHEREOF these Letters Patent have been sealed as from the TWELFTH
TEN BEWYSE WAARVAN hierdie Patentbrief geseél is met ingang van die day of One Thousand Nine Hundred and dag van JANUARY ’ Eenduisend Negehonderd SIXTY-FIVE.
Dated this “ day of TT v
Gedatoet op hed die SIXTEENTH a van NOVEMBER, 15966.
Seal of
Seél van
Jatents Office. tentkantoor, J oF
Registrar of Patents.
Registrateur van Patente.
See overleaf, . Blaai om.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE658170A BE658170A (en) | 1965-01-12 | 1965-01-12 | Saturable reactors for safety circuits and circuits fitted with these reactors |
BE7595 | 1965-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA6634B true ZA6634B (en) | 1966-11-16 |
Family
ID=74667827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA660034A ZA6634B (en) | 1965-01-12 | 1966-01-03 | Improvements in safety circuits incorporating saturable reactors |
Country Status (12)
Country | Link |
---|---|
US (1) | US3389330A (en) |
BE (1) | BE658170A (en) |
CA (1) | CA804730A (en) |
CH (1) | CH455928A (en) |
DE (1) | DE1275140B (en) |
ES (1) | ES361243A3 (en) |
FR (1) | FR1463379A (en) |
GB (1) | GB1129271A (en) |
IN (1) | IN103333B (en) |
IT (1) | IT778732B (en) |
NL (1) | NL143860B (en) |
ZA (1) | ZA6634B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4387306A (en) * | 1981-06-22 | 1983-06-07 | General Signal Corporation | Vital contact checking circuit |
US4600872A (en) * | 1982-07-06 | 1986-07-15 | Shepard Jr Francis H | Apparatus for variable speed drive of an induction motor from a fixed frequency AC source |
US4896091A (en) * | 1985-09-13 | 1990-01-23 | Hasler Ag | Electric power converter |
FR2633071B1 (en) * | 1988-06-16 | 1990-09-21 | Alsthom | STATUS VALIDATION DEVICE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE718555C (en) * | 1932-07-16 | 1944-12-01 | Siemens Ag | Device for contactless regulation of an alternating voltage |
US2725519A (en) * | 1952-03-31 | 1955-11-29 | Westinghouse Electric Corp | Magnetic amplifier electrical position control system |
US3064181A (en) * | 1956-09-04 | 1962-11-13 | Bell Telephone Labor Inc | Magnetic amplifier |
US3270198A (en) * | 1963-03-28 | 1966-08-30 | Gen Signal Corp | Highway crossing systems |
-
0
- CA CA804730A patent/CA804730A/en not_active Expired
-
1965
- 1965-01-12 BE BE658170A patent/BE658170A/en unknown
- 1965-12-17 US US514558A patent/US3389330A/en not_active Expired - Lifetime
-
1966
- 1966-01-03 ZA ZA660034A patent/ZA6634B/en unknown
- 1966-01-03 GB GB65/66A patent/GB1129271A/en not_active Expired
- 1966-01-05 IN IN103333A patent/IN103333B/en unknown
- 1966-01-10 CH CH24466A patent/CH455928A/en unknown
- 1966-01-10 IT IT41766A patent/IT778732B/en active
- 1966-01-11 FR FR45421A patent/FR1463379A/en not_active Expired
- 1966-01-11 NL NL666600314A patent/NL143860B/en not_active IP Right Cessation
- 1966-01-11 DE DEA51282A patent/DE1275140B/en not_active Withdrawn
-
1968
- 1968-12-09 ES ES361243A patent/ES361243A3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1463379A (en) | 1966-12-23 |
ES361243A3 (en) | 1970-08-16 |
IT778732B (en) | 1967-07-15 |
US3389330A (en) | 1968-06-18 |
CH455928A (en) | 1968-05-15 |
GB1129271A (en) | 1968-10-02 |
NL6600314A (en) | 1966-07-13 |
CA804730A (en) | 1969-01-21 |
DE1275140B (en) | 1968-08-14 |
IN103333B (en) | 1967-09-04 |
BE658170A (en) | 1965-07-12 |
NL143860B (en) | 1974-11-15 |
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