GB1091149A - Control circuit for use in relating the frequency of a train of pulses to a reference time period - Google Patents

Control circuit for use in relating the frequency of a train of pulses to a reference time period

Info

Publication number
GB1091149A
GB1091149A GB2032066A GB2032066A GB1091149A GB 1091149 A GB1091149 A GB 1091149A GB 2032066 A GB2032066 A GB 2032066A GB 2032066 A GB2032066 A GB 2032066A GB 1091149 A GB1091149 A GB 1091149A
Authority
GB
United Kingdom
Prior art keywords
frequency
train
pulses
relating
control circuit
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
GB2032066A
Inventor
Robert Clarence Brandriff
Charles Gordon Pickett
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.)
Singer Co
Original Assignee
Singer Co
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 Singer Co filed Critical Singer Co
Priority to GB2032066A priority Critical patent/GB1091149A/en
Publication of GB1091149A publication Critical patent/GB1091149A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B51/00—Applications of needle-thread guards; Thread-break detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/003—Circuit elements having no moving parts for process regulation, (e.g. chemical processes, in boilers or the like); for machine tool control (e.g. sewing machines, automatic washing machines); for liquid level control; for controlling various mechanisms; for alarm circuits; for ac-dc transducers for control purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

1,091,149. Frequency threshold circuit. SINGER CO. May 7, 1966, No. 20320/66. Heading G4P. [Also in Division D1] A logical circuit Fig 4, implemented by fluid-switching elements (Fig. 1, not shown), is such that on receipt of a pulse train a having a bit-period equal to two delays 40, 54, no output f is produced (Fig. 2A, not shown), but with an input pulse train of lower (Fig. 2B, not shown) or higher (Fig. 2C, not shown) frequency an output f is produced. As described the circuit is used to indicate whether yarn (Fig. 1, not shown) is being fed at the correct speed to a sewing machine.
GB2032066A 1966-05-07 1966-05-07 Control circuit for use in relating the frequency of a train of pulses to a reference time period Expired GB1091149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2032066A GB1091149A (en) 1966-05-07 1966-05-07 Control circuit for use in relating the frequency of a train of pulses to a reference time period

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2032066A GB1091149A (en) 1966-05-07 1966-05-07 Control circuit for use in relating the frequency of a train of pulses to a reference time period

Publications (1)

Publication Number Publication Date
GB1091149A true GB1091149A (en) 1967-11-15

Family

ID=10144024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2032066A Expired GB1091149A (en) 1966-05-07 1966-05-07 Control circuit for use in relating the frequency of a train of pulses to a reference time period

Country Status (1)

Country Link
GB (1) GB1091149A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135703A (en) * 1983-02-25 1984-09-05 Celestion Wood Limited Warning device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135703A (en) * 1983-02-25 1984-09-05 Celestion Wood Limited Warning device

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