GB494080A - Improvements in electrical continuity testing devices - Google Patents

Improvements in electrical continuity testing devices

Info

Publication number
GB494080A
GB494080A GB1232638A GB1232638A GB494080A GB 494080 A GB494080 A GB 494080A GB 1232638 A GB1232638 A GB 1232638A GB 1232638 A GB1232638 A GB 1232638A GB 494080 A GB494080 A GB 494080A
Authority
GB
United Kingdom
Prior art keywords
battery
electrical continuity
buzzer
test point
testing 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
GB1232638A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1232638A priority Critical patent/GB494080A/en
Publication of GB494080A publication Critical patent/GB494080A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

494,080. Detecting faults. GENERAL ELECTRIC CO., Ltd., and WHILLANS, E. S. April 25, 1938, No. 12326. [Class 37] A testing device for indicating continuity comprises a clip 2 and flexible wire 3 for fixing to a point to be tested, the wire connection being taken to the rear end of a hollow cylin drical insulating handle 5 containing a buzzer 8 anc its operating battery 9 which is connected througl a spring 12 to a test point 13 carried by the front enc of the handle. The frame 10 of the buzzer makes con tact with the other pole o the battery 9. The test point 13 is fixed in an in sulating cap 16 which can be unscrewed from the cylinder 5 for extracting and replacing the battery.
GB1232638A 1938-04-25 1938-04-25 Improvements in electrical continuity testing devices Expired GB494080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1232638A GB494080A (en) 1938-04-25 1938-04-25 Improvements in electrical continuity testing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1232638A GB494080A (en) 1938-04-25 1938-04-25 Improvements in electrical continuity testing devices

Publications (1)

Publication Number Publication Date
GB494080A true GB494080A (en) 1938-10-19

Family

ID=10002433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232638A Expired GB494080A (en) 1938-04-25 1938-04-25 Improvements in electrical continuity testing devices

Country Status (1)

Country Link
GB (1) GB494080A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138577A (en) * 1983-04-21 1984-10-24 Northern Telecom Ltd Electric test instrument with flexibly connected head
GB2465590A (en) * 2008-11-21 2010-05-26 Paul Ledgard Continuity tester with fixed alligator clips

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138577A (en) * 1983-04-21 1984-10-24 Northern Telecom Ltd Electric test instrument with flexibly connected head
GB2465590A (en) * 2008-11-21 2010-05-26 Paul Ledgard Continuity tester with fixed alligator clips
GB2465590B (en) * 2008-11-21 2013-03-06 Paul Ledgard Tool box buzzbox

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