GB2012055B - Control apparatus - Google Patents

Control apparatus

Info

Publication number
GB2012055B
GB2012055B GB7902088A GB7902088A GB2012055B GB 2012055 B GB2012055 B GB 2012055B GB 7902088 A GB7902088 A GB 7902088A GB 7902088 A GB7902088 A GB 7902088A GB 2012055 B GB2012055 B GB 2012055B
Authority
GB
United Kingdom
Prior art keywords
control apparatus
control
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
GB7902088A
Other versions
GB2012055A (en
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.)
Kodak Ltd
Original Assignee
Kodak 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 Kodak Ltd filed Critical Kodak Ltd
Priority to GB7902088A priority Critical patent/GB2012055B/en
Publication of GB2012055A publication Critical patent/GB2012055A/en
Application granted granted Critical
Publication of GB2012055B publication Critical patent/GB2012055B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
    • G01N31/162—Determining the equivalent point by means of a discontinuity
    • G01N31/164—Determining the equivalent point by means of a discontinuity by electrical or electrochemical means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
GB7902088A 1977-10-19 1979-01-19 Control apparatus Expired GB2012055B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7902088A GB2012055B (en) 1977-10-19 1979-01-19 Control apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4357877 1977-10-19
GB7902088A GB2012055B (en) 1977-10-19 1979-01-19 Control apparatus

Publications (2)

Publication Number Publication Date
GB2012055A GB2012055A (en) 1979-07-18
GB2012055B true GB2012055B (en) 1982-03-03

Family

ID=26265200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902088A Expired GB2012055B (en) 1977-10-19 1979-01-19 Control apparatus

Country Status (1)

Country Link
GB (1) GB2012055B (en)

Also Published As

Publication number Publication date
GB2012055A (en) 1979-07-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee