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GB659621A - Improvements in or relating to devices for testing for faults in photographic flash bulbs, electric incandescent lamps and the like - Google Patents

Improvements in or relating to devices for testing for faults in photographic flash bulbs, electric incandescent lamps and the like

Info

Publication number
GB659621A
GB659621A GB334149A GB334149A GB659621A GB 659621 A GB659621 A GB 659621A GB 334149 A GB334149 A GB 334149A GB 334149 A GB334149 A GB 334149A GB 659621 A GB659621 A GB 659621A
Authority
GB
United Kingdom
Prior art keywords
testing
lamp
faults
relating
devices
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
GB334149A
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 GB334149A priority Critical patent/GB659621A/en
Publication of GB659621A publication Critical patent/GB659621A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

659,621. Testing lamps. JACOBS, H. Feb. 7, 1949, No. 3341. [Class 37] A device for testing continuity of a lamp comprises a battery in a cylindrical case, one of the exterior contacts being a ring or sleeve surrounding the casing. As shown, a signal lamp 10 is mounted in a metal ring 4 engaging an insulating case 1 containing a battery 2, spring 14 and conductor 15, a second metal ring 16 being in contact with the conductor 15. The lamp under test has its contacts pressed against the rings 4, 16 to complete the circuit of signal lamp 10. When the lamp under test is a photographic flash bulb, the lamp 10 has a high resistance.
GB334149A 1949-02-07 1949-02-07 Improvements in or relating to devices for testing for faults in photographic flash bulbs, electric incandescent lamps and the like Expired GB659621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB334149A GB659621A (en) 1949-02-07 1949-02-07 Improvements in or relating to devices for testing for faults in photographic flash bulbs, electric incandescent lamps and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB334149A GB659621A (en) 1949-02-07 1949-02-07 Improvements in or relating to devices for testing for faults in photographic flash bulbs, electric incandescent lamps and the like

Publications (1)

Publication Number Publication Date
GB659621A true GB659621A (en) 1951-10-24

Family

ID=9756488

Family Applications (1)

Application Number Title Priority Date Filing Date
GB334149A Expired GB659621A (en) 1949-02-07 1949-02-07 Improvements in or relating to devices for testing for faults in photographic flash bulbs, electric incandescent lamps and the like

Country Status (1)

Country Link
GB (1) GB659621A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361800A (en) * 1980-07-14 1982-11-30 S & G Tool Aid Corp. Circuit test device
CN106959187A (en) * 2017-05-08 2017-07-18 郭毅飞 One kind diving gas cylinder air pressure induction and warning device
CN116593928A (en) * 2023-07-17 2023-08-15 济宁盛世照明电器有限公司 Energy-saving and environment-friendly incandescent lamp illumination detection equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361800A (en) * 1980-07-14 1982-11-30 S & G Tool Aid Corp. Circuit test device
CN106959187A (en) * 2017-05-08 2017-07-18 郭毅飞 One kind diving gas cylinder air pressure induction and warning device
CN116593928A (en) * 2023-07-17 2023-08-15 济宁盛世照明电器有限公司 Energy-saving and environment-friendly incandescent lamp illumination detection equipment
CN116593928B (en) * 2023-07-17 2023-10-13 济宁盛世照明电器有限公司 Energy-saving and environment-friendly incandescent lamp illumination detection equipment

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