GB1126288A - Fluid logic control circuit useful with sewing machines - Google Patents

Fluid logic control circuit useful with sewing machines

Info

Publication number
GB1126288A
GB1126288A GB10408/67A GB1040867A GB1126288A GB 1126288 A GB1126288 A GB 1126288A GB 10408/67 A GB10408/67 A GB 10408/67A GB 1040867 A GB1040867 A GB 1040867A GB 1126288 A GB1126288 A GB 1126288A
Authority
GB
United Kingdom
Prior art keywords
pressure
pulley
receiver
fluid
march
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
GB10408/67A
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.)
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
Publication of GB1126288A publication Critical patent/GB1126288A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/212—System comprising plural fluidic devices or stages
    • Y10T137/2125—Plural power inputs [e.g., parallel inputs]
    • Y10T137/2147—To cascaded plural devices
    • Y10T137/2158—With pulsed control-input signal

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)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

1,126,288. Pure fluid amplifiers. SINGER CO. March 6, 1967 [March 8, 1966] No.10408/67. Heading G3H. [Also in Division D1] A fluidic circuit for monitoring the operation of a sewing machine has a fluid source 26 feeding a receiver 30 through the spokes of a pulley 16 carrying the needle thread 18, the arrangement being such that interconnected fluid amplifiers 34, 46, 56 in circuit with a variable delay element 52 feed an integrating detector 70 with fluid at a pressure determined by the frequency of the pulse train Figs 2a-c (not shown) developed in receiver 30 in response to the speed of rotation of pulley 16. With the pulley rotating at a desired speed, predetermined by the setting of element 52, the pressure applied to detecter 70 is below the operating threshold necessary to operate an alarm (not shown), but in the event of the pressure in leg 58 rising above this threshold value the alarm is activated. Leg 58 is subjected to this increased pressure. When the pulse times are too long (Fig.2b), or too short (Fig.2c), or when receiver 30 is supplied with either no pressure or a continuous pressure due to thread breakage stopping the pulley.
GB10408/67A 1966-03-08 1967-03-06 Fluid logic control circuit useful with sewing machines Expired GB1126288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US532708A US3363595A (en) 1966-03-08 1966-03-08 Fluonic control circuit useful with sewing machines

Publications (1)

Publication Number Publication Date
GB1126288A true GB1126288A (en) 1968-09-05

Family

ID=24122836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10408/67A Expired GB1126288A (en) 1966-03-08 1967-03-06 Fluid logic control circuit useful with sewing machines

Country Status (2)

Country Link
US (1) US3363595A (en)
GB (1) GB1126288A (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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731524A (en) * 1966-12-13 1973-05-08 Corning Glass Works Fluidic control circuit
GB1326744A (en) * 1969-12-04 1973-08-15 Plessey Co Ltd Fluid logic arrangements

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155825A (en) * 1963-02-21 1964-11-03 Gen Electric Pure fluid logic circuitry for integrators and differentiators
US3323721A (en) * 1965-07-20 1967-06-06 Akad Wissenschaften Ddr Pressurized fluid operable switching 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

Also Published As

Publication number Publication date
US3363595A (en) 1968-01-16

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