GB1474382A - Programmable control means - Google Patents

Programmable control means

Info

Publication number
GB1474382A
GB1474382A GB3168373A GB3168373A GB1474382A GB 1474382 A GB1474382 A GB 1474382A GB 3168373 A GB3168373 A GB 3168373A GB 3168373 A GB3168373 A GB 3168373A GB 1474382 A GB1474382 A GB 1474382A
Authority
GB
United Kingdom
Prior art keywords
control
pulses
circuit
contactor unit
markings
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
GB3168373A
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.)
WARHURST F
Original Assignee
WARHURST F
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 WARHURST F filed Critical WARHURST F
Priority to GB3168373A priority Critical patent/GB1474382A/en
Publication of GB1474382A publication Critical patent/GB1474382A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/124Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using tapes, cards or discs with optically sensed marks or codes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)

Abstract

1474382 Automatic control system F WARHURST 2 Oct 1974 [3 July 1973] 31683/73 Heading G3N A programmed controller provides control pulses in a repetitive time cycle that are used by an interposed contactor unit to control the switching off or on of an appliance. The pulses are of a short duration, leaving an interval between pulses for manual over-riding control of the contactor unit. In the embodiment shown, for controlling a plurality of heaters, the program is formed by markings e.g. adhesive tape on a drum or tape that is driven by motor M. For each heater control, the markings are detected by an electro-optical system 15, using photodiodes or phototransistors to produce an 'on' pulse to contactor unit 2. This pulse is turned off after a given time delay, determined by an RC circuit, but unit 2 remains latched "on" until the end of a marking is detected. Over-riding manual control e.g. by push buttons, thermostats or pressure gauges may be provided in circuit 30, as selected by switch 24. The system may also be used to control motors or solenoid operated valves. Details of the system e.g. of a programmed drum or circuit 30 are given in Figs. 2-6 (not shown).
GB3168373A 1974-10-02 1974-10-02 Programmable control means Expired GB1474382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3168373A GB1474382A (en) 1974-10-02 1974-10-02 Programmable control means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3168373A GB1474382A (en) 1974-10-02 1974-10-02 Programmable control means

Publications (1)

Publication Number Publication Date
GB1474382A true GB1474382A (en) 1977-05-25

Family

ID=10326845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3168373A Expired GB1474382A (en) 1974-10-02 1974-10-02 Programmable control means

Country Status (1)

Country Link
GB (1) GB1474382A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433066A1 (en) * 1978-08-09 1980-03-07 Sulzer Ag ELECTRONIC DEVICE FOR CONTROLLING A WEAVING MACHINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433066A1 (en) * 1978-08-09 1980-03-07 Sulzer Ag ELECTRONIC DEVICE FOR CONTROLLING A WEAVING MACHINE

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921002