GB1310682A - Apparatus for forming a package of yarn - Google Patents

Apparatus for forming a package of yarn

Info

Publication number
GB1310682A
GB1310682A GB1310682DA GB1310682A GB 1310682 A GB1310682 A GB 1310682A GB 1310682D A GB1310682D A GB 1310682DA GB 1310682 A GB1310682 A GB 1310682A
Authority
GB
United Kingdom
Prior art keywords
ring counter
circuit
armature
operative
amplifier
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
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.)
QUALITEX Ltd
Original Assignee
QUALITEX 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 QUALITEX Ltd filed Critical QUALITEX Ltd
Publication of GB1310682A publication Critical patent/GB1310682A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1310682 Control of DC motors QUALITEX Ltd 7 Aug 1970 [14 July 1969] 35390/69 Addition to 1113065 Heading H2J [Also in Division D1] A circuit for causing a motor 19 to be stepped cyclically through a plurality of different speeds includes a ring counter 11 under the control of a pulse generator 10. The time interval between the pulses is controlled by a timing circuit comprising a unijunction transistor 7, adjustable resistors 8 and a capacitor 9. The ring counter 11 is operative to select according to its condition a respective one of several potentiometer circuits 12, 13, 14, 15 the sliders of which are coupled to the input of an amplifier 16. The amplifier 16 controls by means of a firing circuit 17 the firing angle of a thyristor 18 in series with the armature 19b of a shunt-wound direct current motor 19. A freewheeling diode 21 is connected across the armature. The stator 19a is fed with full-wave rectified but unsmoothed current from a rectifier bridge 20. The bases of the transistors 26 in the stages of the ring counter 11 are connected via switches 25 to a centre tap 2a on the secondary of transformer 2. Closure of the switches renders the individual stages of the counter 11 in-operative.
GB1310682D 1969-07-14 1969-07-14 Apparatus for forming a package of yarn Expired GB1310682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3539069 1969-07-14

Publications (1)

Publication Number Publication Date
GB1310682A true GB1310682A (en) 1973-03-21

Family

ID=10377187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1310682D Expired GB1310682A (en) 1969-07-14 1969-07-14 Apparatus for forming a package of yarn

Country Status (1)

Country Link
GB (1) GB1310682A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees