GB860228A - Improvements relating to automatic electric control apparatus - Google Patents

Improvements relating to automatic electric control apparatus

Info

Publication number
GB860228A
GB860228A GB42949/59A GB4294959A GB860228A GB 860228 A GB860228 A GB 860228A GB 42949/59 A GB42949/59 A GB 42949/59A GB 4294959 A GB4294959 A GB 4294959A GB 860228 A GB860228 A GB 860228A
Authority
GB
United Kingdom
Prior art keywords
variable
predetermined range
control apparatus
electric control
improvements relating
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
GB42949/59A
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.)
ERIC WALTER EUSTACE MICKLETHWA
Original Assignee
ERIC WALTER EUSTACE MICKLETHWA
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
Priority to GB14964/57A priority Critical patent/GB860227A/en
Priority to GB42950/59A priority patent/GB860229A/en
Application filed by ERIC WALTER EUSTACE MICKLETHWA filed Critical ERIC WALTER EUSTACE MICKLETHWA
Priority to GB42949/59A priority patent/GB860228A/en
Publication of GB860228A publication Critical patent/GB860228A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • G05D23/2451—Details of the regulator
    • G05D23/2456—Details of the regulator using selfs or transformers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Thermistors And Varistors (AREA)
  • Rectifiers (AREA)
  • Feedback Control In General (AREA)
  • Thermally Actuated Switches (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Measuring Volume Flow (AREA)

Abstract

860,228. Automatic temperature-control systems. MICKLETHWAIT, E. W. E. (Garrett Corporation). May 10, 1957, No. 42949/59. Divided out of 860,227. Drawings to Specification. Class 38 (4). The Specification contains the same subjectmatter as Specification 860,227, but the claims relate to a system normally controlled in accordance with the deviation of a first variable from a datum value but which control is reduced or overriden by a limiting signal in accordance with a second variable when the second variable is outside a predetermined range, the limiting signal having zero value when the second variable is within the predetermined range but which has a value differing from zero when the second variable departs in either direction from the predetermined range. A circuit for producing a control signal effective when the second variable is outside the predetermined range is claimed in Specification 860,229.
GB42949/59A 1957-05-10 1959-05-10 Improvements relating to automatic electric control apparatus Expired GB860228A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB14964/57A GB860227A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus
GB42950/59A GB860229A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus
GB42949/59A GB860228A (en) 1957-05-10 1959-05-10 Improvements relating to automatic electric control apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB14964/57A GB860227A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus
GB42950/59A GB860229A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus
GB42949/59A GB860228A (en) 1957-05-10 1959-05-10 Improvements relating to automatic electric control apparatus

Publications (1)

Publication Number Publication Date
GB860228A true GB860228A (en) 1961-02-01

Family

ID=62200133

Family Applications (3)

Application Number Title Priority Date Filing Date
GB14964/57A Expired GB860227A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus
GB42950/59A Expired GB860229A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus
GB42949/59A Expired GB860228A (en) 1957-05-10 1959-05-10 Improvements relating to automatic electric control apparatus

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB14964/57A Expired GB860227A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus
GB42950/59A Expired GB860229A (en) 1957-05-10 1957-05-10 Improvements relating to automatic electric control apparatus

Country Status (1)

Country Link
GB (3) GB860227A (en)

Also Published As

Publication number Publication date
GB860229A (en) 1961-02-01
GB860227A (en) 1961-02-01

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