GB639521A - Improvements relating to electrical testing appliances - Google Patents

Improvements relating to electrical testing appliances

Info

Publication number
GB639521A
GB639521A GB2128548A GB2128548A GB639521A GB 639521 A GB639521 A GB 639521A GB 2128548 A GB2128548 A GB 2128548A GB 2128548 A GB2128548 A GB 2128548A GB 639521 A GB639521 A GB 639521A
Authority
GB
United Kingdom
Prior art keywords
leads
improvements relating
electrical testing
charging equipment
smart
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
GB2128548A
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.)
Hindle Smart & Co Ltd
ROBERT ERIC SMART
Original Assignee
Hindle Smart & Co Ltd
ROBERT ERIC SMART
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 Hindle Smart & Co Ltd, ROBERT ERIC SMART filed Critical Hindle Smart & Co Ltd
Priority to GB2128548A priority Critical patent/GB639521A/en
Publication of GB639521A publication Critical patent/GB639521A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

639,521. Voltage measurements. HINDLE, SMART & CO., Ltd., and SMART, R. E. Aug. 12, 1948, No. 21285. [Class 37] A testing appliance for use in conjunction with battery charging equipment comprises leads a for connection to the A.C. supply to the charging equipment connected to the primary of a transformer b, the secondary of which has a number of tappings. The secondary is connected through a variable resistance e to leads f for connection to the terminals of a voltage relay in the charging equipment. A voltmeter g is connected across the leads f, whereby a predetermined voltage may be applied to the relay for testing and adjusting the equipment. An indicator lamp c is connected across two of the transformer tappings.
GB2128548A 1948-08-12 1948-08-12 Improvements relating to electrical testing appliances Expired GB639521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2128548A GB639521A (en) 1948-08-12 1948-08-12 Improvements relating to electrical testing appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2128548A GB639521A (en) 1948-08-12 1948-08-12 Improvements relating to electrical testing appliances

Publications (1)

Publication Number Publication Date
GB639521A true GB639521A (en) 1950-06-28

Family

ID=10160309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2128548A Expired GB639521A (en) 1948-08-12 1948-08-12 Improvements relating to electrical testing appliances

Country Status (1)

Country Link
GB (1) GB639521A (en)

Similar Documents

Publication Publication Date Title
GB639521A (en) Improvements relating to electrical testing appliances
GB831692A (en) Improvements in or relating to the measurement of the electrical conductance of liquids
GB701941A (en) Improvements relating to electrical measuring instruments
GB543660A (en) Improvements in or relating to electrical testing apparatus
GB614952A (en) Electric thermometer circuit
GB756081A (en) Improvements relating to electrical dental pulp testing instruments
GB422013A (en) Improvements in electrical instruments for measuring resistance
GB636048A (en) Improvements in electrical measuring methods and apparatus
GB591073A (en) Apparatus for measuring high alternating voltages
GB547920A (en) Apparatus for supplying electric current to low voltage appliances
GB645777A (en) Improvements in or relating to apparatus for measuring the thickness of non-magneticcoatings on magnetic materials
GB624567A (en) Improvements in or relating to resistance measuring apparatus
GB675731A (en) Improvements in and relating to moisture contents monitors
GB634912A (en) Improvements in electric battery testing apparatus
GB680914A (en) Improvements in or relating to instruments for testing the polarity of current in anelectrical circuit
GB576405A (en) Improvements in apparatus for measuring electrical resistance
GB646907A (en) Improvements relating to electric storage battery testers
GB1343591A (en) Portable device for measuring the insulation resistance of an article under test
GB284320A (en) Improvements in and relating to electric meters
GB631991A (en) Improvements relating to electrical measuring instruments
GB555702A (en) Improvements in battery charging equipment
GB425794A (en) Universal instrument for direct and alternating current with dry rectifier
GB918004A (en) Improvements in electrical insulation testers
GB634560A (en) Improvements in or relating to electric current indicating devices
GB717707A (en) Improvements in or relating to accessories for electrical measuring instruments