GB318368A - An improved electric circuit testing device - Google Patents

An improved electric circuit testing device

Info

Publication number
GB318368A
GB318368A GB2326528A GB2326528A GB318368A GB 318368 A GB318368 A GB 318368A GB 2326528 A GB2326528 A GB 2326528A GB 2326528 A GB2326528 A GB 2326528A GB 318368 A GB318368 A GB 318368A
Authority
GB
United Kingdom
Prior art keywords
lamp
low
electric circuit
testing device
voltage
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
GB2326528A
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.)
WT Henleys Telegraph Works Co Ltd
Original Assignee
WT Henleys Telegraph Works Co 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 WT Henleys Telegraph Works Co Ltd filed Critical WT Henleys Telegraph Works Co Ltd
Priority to GB2326528A priority Critical patent/GB318368A/en
Publication of GB318368A publication Critical patent/GB318368A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/155—Indicating the presence of voltage

Abstract

318,368. Henley's Telegraph Works Co., Ltd., W. T., and Hoban, H. C. Aug. 13, 1928. Fusible cut-outs.-A testing set for indicating the condition of a fuse &c. comprises a neon lamp normally connected across the terminals of the set, a switch being provided to short-circuit the neon lamp and permit a low-voltage lamp to be lighted. A relay is provided for disconnecting the low-voltage lamp from the circuit under test. An auxiliary lamp and switch can also be provided for inspection purposes. As shown, Fig. 3, the set comprises a neon lamp 3, low-voltage lamp 5 and inspection lamp 10 mounted on a bar 13 carrying insulation blocks 14 through which connections are made to switches 4, 11, relay 7 and battery 6.
GB2326528A 1928-08-13 1928-08-13 An improved electric circuit testing device Expired GB318368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2326528A GB318368A (en) 1928-08-13 1928-08-13 An improved electric circuit testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2326528A GB318368A (en) 1928-08-13 1928-08-13 An improved electric circuit testing device

Publications (1)

Publication Number Publication Date
GB318368A true GB318368A (en) 1929-09-05

Family

ID=10192855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2326528A Expired GB318368A (en) 1928-08-13 1928-08-13 An improved electric circuit testing device

Country Status (1)

Country Link
GB (1) GB318368A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503390A (en) * 1981-05-07 1985-03-05 Ideal Industries, Inc. Switchless voltage, continuity and polarity indicator
US4527118A (en) * 1981-06-29 1985-07-02 Siemens Aktiengesellschaft Testing device for indicating an electric voltage and its polarity and for continuity testing
US4825150A (en) * 1987-12-24 1989-04-25 Fl Industries, Inc. Voltage and continuity tester
US5481185A (en) * 1994-12-05 1996-01-02 Gb Electrical Inc. Solenoid, type voltage, polarity and continuity tester

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503390A (en) * 1981-05-07 1985-03-05 Ideal Industries, Inc. Switchless voltage, continuity and polarity indicator
US4527118A (en) * 1981-06-29 1985-07-02 Siemens Aktiengesellschaft Testing device for indicating an electric voltage and its polarity and for continuity testing
US4825150A (en) * 1987-12-24 1989-04-25 Fl Industries, Inc. Voltage and continuity tester
US5481185A (en) * 1994-12-05 1996-01-02 Gb Electrical Inc. Solenoid, type voltage, polarity and continuity tester

Similar Documents

Publication Publication Date Title
US1718529A (en) Testing apparatus
GB385389A (en) Improved electric circuit breaking apparatus
GB318368A (en) An improved electric circuit testing device
USRE21148E (en) Meter base
GB498756A (en) Improvements in or relating to construction of electrical transformers
GB318229A (en) Improvements in or relating to position indicators for electrical switches and other fittings
GB435521A (en) Improvements in electric alarm devices
GB250589A (en) Alarm contrivances for fire alarm and other purposes
SU23183A1 (en) Device for signaling the blown electrical fuses
GB473186A (en) Improvements in or relating to electric time switches
GB693759A (en) Improvements in or relating to fuse cut-outs for electric circuits
GB389671A (en) Improvements in or relating to arc-rupturing devices for electric circuit interrupters
GB637649A (en) Improvements in electric circuit fuses
GB285806A (en) Improvements relating to the terminals of electricity meters
GB420182A (en) Electric circuit breaking apparatus
GB334896A (en) Improvements in electric fuses
GB427970A (en) Improvements in or relating to electric fuse holders and boxes therefor
GB379628A (en) Improvements in or relating to electric plug and socket couplings
GB712239A (en) Improvements in or relating to circuit arrangements for operating low pressure electric discharge lamps
GB346518A (en) An improved electric conductor protective system
GB204015A (en) Device for testing electric safety fuses
GB185832A (en) Improvements in or relating to electric fuses and fuse boards
GB235737A (en) An improved instrument or fault detector for testing electric circuits
GB313030A (en) Improvements in or relating to electrical power distribution systems
GB294481A (en) Improvements in or relating to the circuits of ignition and lighting generators