GB243048A - Method of and means for relaying the movement of a measuring or indicating instrument - Google Patents

Method of and means for relaying the movement of a measuring or indicating instrument

Info

Publication number
GB243048A
GB243048A GB1929424A GB1929424A GB243048A GB 243048 A GB243048 A GB 243048A GB 1929424 A GB1929424 A GB 1929424A GB 1929424 A GB1929424 A GB 1929424A GB 243048 A GB243048 A GB 243048A
Authority
GB
United Kingdom
Prior art keywords
resistances
heat
pointer
wheatstone bridge
upset
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
GB1929424A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1929424A priority Critical patent/GB243048A/en
Publication of GB243048A publication Critical patent/GB243048A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
    • G01R5/22—Thermoelectric instruments
    • G01R5/24—Thermoelectric instruments operated by elongation of a strip or wire or by expansion of a gas or fluid

Abstract

243,048. Foster, C. E. Aug. 14, 1924. Tell-tale apparatus.-An indicating or measuring instrument controls lamp or other indicators, by varying the amount of heat falling upon resistances arranged in a Wheatstone bridge. A vane 6 on the pointer 5 of the measuring instrument is normally symmetrically positioned between sources of heat 1, 2 and resistances 3, 4 connected in the bridge with fixed resistances 8, 9 and a relay 10. When the pointer moves, the resistances 3, 4 are heated unequally and the balance is upset, causing the relay to close the circuit of the indicators. The source of heat 2 may be omitted. The Provisional Specification states that a differential galvanometer may be connected to the resistances in order to repeat the movements of the pointer. Alternatively, a galvanometer may be connected across the Wheatstone bridge. This Specification also states that the sources of heat may be connected to the Wheatstone bridge, the temperatures being varied by a reflecting vane to upset the balance.
GB1929424A 1924-08-14 1924-08-14 Method of and means for relaying the movement of a measuring or indicating instrument Expired GB243048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1929424A GB243048A (en) 1924-08-14 1924-08-14 Method of and means for relaying the movement of a measuring or indicating instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1929424A GB243048A (en) 1924-08-14 1924-08-14 Method of and means for relaying the movement of a measuring or indicating instrument

Publications (1)

Publication Number Publication Date
GB243048A true GB243048A (en) 1925-11-16

Family

ID=10126997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1929424A Expired GB243048A (en) 1924-08-14 1924-08-14 Method of and means for relaying the movement of a measuring or indicating instrument

Country Status (1)

Country Link
GB (1) GB243048A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440189A (en) * 1945-04-13 1948-04-20 Rca Corp Convection current responsive instrument
US2496575A (en) * 1944-11-25 1950-02-07 Jack & Heintz Prec Ind Inc Bolometer type telemetric system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496575A (en) * 1944-11-25 1950-02-07 Jack & Heintz Prec Ind Inc Bolometer type telemetric system
US2440189A (en) * 1945-04-13 1948-04-20 Rca Corp Convection current responsive instrument

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