GB1107580A - Electromagnet arrangements for selecting the needles of a circular knitting machine - Google Patents

Electromagnet arrangements for selecting the needles of a circular knitting machine

Info

Publication number
GB1107580A
GB1107580A GB3040/67A GB304067A GB1107580A GB 1107580 A GB1107580 A GB 1107580A GB 3040/67 A GB3040/67 A GB 3040/67A GB 304067 A GB304067 A GB 304067A GB 1107580 A GB1107580 A GB 1107580A
Authority
GB
United Kingdom
Prior art keywords
excitation
needles
selecting
operating
knitting machine
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
GB3040/67A
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.)
Franz Morat GmbH
Original Assignee
Franz Morat GmbH
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 Franz Morat GmbH filed Critical Franz Morat GmbH
Publication of GB1107580A publication Critical patent/GB1107580A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • 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
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/78—Electrical devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1816—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current making use of an energy accumulator
    • 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
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Electromagnets (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1,107,580. Supply circuits for electromagnets; capacitor arrangements. FRANZ MORAT G.m.b.H. 30 June, 1965 [1 July, 1964], No. 3040/67. Divided out of 1,106,746. Heading H2H. The Specification relates to a circuit arrangement for operating an electro-magnet similar to that disclosed in Fig. 3 or Fig. 4 of Specification 1,106,746, but the presence of the condenser is used to reduce the current drawn from the operating voltage source instead of to increase the speed of excitation. This is achieved by providing the electro-magnet winding with a number of turns greater than the number which would be necessary for achieving a given speed of excitation from the unaugmented operating voltage, by a factor which corresponds to the amount of excitation augmentation provided by the condenser, whereby the operating current is reduced by the said factor while the said given speed of excitation is retained.
GB3040/67A 1964-07-01 1965-06-30 Electromagnet arrangements for selecting the needles of a circular knitting machine Expired GB1107580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM61577A DE1288194B (en) 1964-07-01 1964-07-01 Circuit arrangement for the rapid excitation of DC-operated electromagnets

Publications (1)

Publication Number Publication Date
GB1107580A true GB1107580A (en) 1968-03-27

Family

ID=7310166

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27711/65A Expired GB1106746A (en) 1964-07-01 1965-06-30 Apparatus and circuit arrangement for high-speed excitation of electromagnets
GB3040/67A Expired GB1107580A (en) 1964-07-01 1965-06-30 Electromagnet arrangements for selecting the needles of a circular knitting machine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB27711/65A Expired GB1106746A (en) 1964-07-01 1965-06-30 Apparatus and circuit arrangement for high-speed excitation of electromagnets

Country Status (4)

Country Link
US (1) US3391307A (en)
CH (2) CH446529A (en)
DE (1) DE1288194B (en)
GB (2) GB1106746A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452162A (en) * 1967-06-15 1969-06-24 Motorola Inc Circuit for providing a filtered dc potential and an actuating pulse for an electromagnetic device
US3582981A (en) * 1969-03-18 1971-06-01 Bell Telephone Labor Inc Solenoid driver circuit
USRE30150E (en) * 1971-08-02 1979-11-13 Ncr Corporation Inductor drive means
JPS60176321A (en) * 1984-02-22 1985-09-10 Hayashibara Takeshi Magnetic force line pulse generating device
DE4413240A1 (en) * 1994-04-16 1995-10-19 Bosch Gmbh Robert Device and a method for controlling an electromagnetic consumer
CN103088537A (en) * 2013-01-30 2013-05-08 佛山市创达企业有限公司 Control method of needle selection blade

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073587B (en) * 1960-01-21 Telefonbau und Normalzeit G m bH Frankfurt/M Circuit arrangement for electromagnets
DE1115785B (en) * 1960-08-13 1961-10-26 Standard Elektrik Lorenz Ag Circuit arrangement for activating and holding a relay by means of a capacitor
DE1170073B (en) * 1961-09-13 1964-05-14 Ibm Deutschland Switching arrangement to reduce the pick-up time for relays
US3303398A (en) * 1963-08-01 1967-02-07 Indiana General Corp Magnetizer-demagnetizer
USRE26394E (en) * 1964-07-13 1968-05-21 Scr controlled capacitor fed relay with filter means

Also Published As

Publication number Publication date
GB1106746A (en) 1968-03-20
US3391307A (en) 1968-07-02
DE1288194B (en) 1969-01-30
CH434468A (en) 1967-04-30
CH446529A (en) 1967-11-15

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