GB1386431A - Device for causing pulsatory operation of an electromagnet in a circular knitting machine - Google Patents

Device for causing pulsatory operation of an electromagnet in a circular knitting machine

Info

Publication number
GB1386431A
GB1386431A GB1848572A GB1848572A GB1386431A GB 1386431 A GB1386431 A GB 1386431A GB 1848572 A GB1848572 A GB 1848572A GB 1848572 A GB1848572 A GB 1848572A GB 1386431 A GB1386431 A GB 1386431A
Authority
GB
United Kingdom
Prior art keywords
capacitor
circuit
diode
coil
allows
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
GB1848572A
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.)
Elitex Zavody Textilniho
Elitex
Original Assignee
Elitex Zavody Textilniho
Elitex
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 Elitex Zavody Textilniho, Elitex filed Critical Elitex Zavody Textilniho
Publication of GB1386431A publication Critical patent/GB1386431A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Electromagnets (AREA)

Abstract

1386431 Knitting machines ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 20 April 1972 [30 April 1971] 18485/72 Heading D1C [Also in Division H3] A circuit for pulsing an electro-magnet in a circular knitting machine comprises means for connecting the coil of the magnet in a resonant circuit for rapidly building up current in the coil, means for providing a holding current and means for rapidly switching off the current. When transistor 6 is made conductive a capacitor 18 discharges resonantly through the winding 5 of the electromagnet to effect rapid operation. The voltage across the capacitor decreases but is held when it falls below a voltage ub 2 whereafter a holding current is supplied through a variable resistor 24 and a diode 23. Turning off transistor 6 allows the energy in the coil to dissipate rapidly through a resonant-circuit completed by diode 11, capacitor 31 and capacitor 18. Thyristor 2 is now fired to resonontly recharge the capacitor 17 through inductor 18. A diode 28 allows the inductor to discharge when the thyristor extinguishes and a resistor 16 allows capacitor 20 its charge on first switching the circuit on.
GB1848572A 1971-04-30 1972-04-20 Device for causing pulsatory operation of an electromagnet in a circular knitting machine Expired GB1386431A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS313571A CS157241B1 (en) 1971-04-30 1971-04-30

Publications (1)

Publication Number Publication Date
GB1386431A true GB1386431A (en) 1975-03-05

Family

ID=5370521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1848572A Expired GB1386431A (en) 1971-04-30 1972-04-20 Device for causing pulsatory operation of an electromagnet in a circular knitting machine

Country Status (7)

Country Link
US (1) US3874198A (en)
CH (1) CH540370A (en)
CS (1) CS157241B1 (en)
DE (1) DE2211530B2 (en)
FR (1) FR2136807A5 (en)
GB (1) GB1386431A (en)
IT (1) IT953783B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323400A1 (en) * 1982-07-10 1984-01-12 Lucas Industries Ltd., Birmingham, West Midlands POWER SUPPLY CIRCUIT
GB2182815A (en) * 1985-11-12 1987-05-20 Iveco Fiat Inductive load switching circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309861A (en) * 1992-08-05 1994-05-10 Mardikian 1991 Irrevocable Trust Shock-absorber mounted seat for personal watercraft and boats

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167418A (en) * 1967-08-04 1969-10-15 Wildt Mellor Bromley Ltd Improved Patterning Mechanism for Circular Knitting Machines
DE1903432A1 (en) * 1969-01-24 1970-08-20 Mayer & Cie Maschinenfabrik Electric pattern device for circular knitting machines
BE759189A (en) * 1969-11-28 1971-05-21 Cit Alcatel CURRENT CONTROL CIRCUIT IN INDUCTIVE LOAD
US3660730A (en) * 1970-12-16 1972-05-02 Design Elements Inc Solenoid drive circuit
DE2062387B2 (en) * 1970-12-18 1972-11-16 CIRCUIT ARRANGEMENT FOR QUICK EXCITATION AND QUICK EXCITATION OF A DC-SUPPLIED ELECTROMAGNET WITH ARMATURE
US3708726A (en) * 1971-08-02 1973-01-02 Ncr Inductor drive means

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323400A1 (en) * 1982-07-10 1984-01-12 Lucas Industries Ltd., Birmingham, West Midlands POWER SUPPLY CIRCUIT
GB2124044A (en) * 1982-07-10 1984-02-08 Lucas Ind Plc Power supply circuit
GB2182815A (en) * 1985-11-12 1987-05-20 Iveco Fiat Inductive load switching circuit
FR2591045A1 (en) * 1985-11-12 1987-06-05 Iveco Fiat DEVICE FOR QUICKLY TRANSFERRING A CURRENT IN AN INDUCTIVE LOAD
GB2182815B (en) * 1985-11-12 1989-11-01 Iveco Fiat Electric circuit arrangement for rapidly transferring current to an inductive load

Also Published As

Publication number Publication date
CH540370A (en) 1973-08-15
IT953783B (en) 1973-08-10
CS157241B1 (en) 1974-09-16
US3874198A (en) 1975-04-01
DE2211530A1 (en) 1972-11-09
FR2136807A5 (en) 1972-12-22
DE2211530B2 (en) 1979-09-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee