GB741528A - Supervisory device for electrical installations - Google Patents

Supervisory device for electrical installations

Info

Publication number
GB741528A
GB741528A GB2870953A GB2870953A GB741528A GB 741528 A GB741528 A GB 741528A GB 2870953 A GB2870953 A GB 2870953A GB 2870953 A GB2870953 A GB 2870953A GB 741528 A GB741528 A GB 741528A
Authority
GB
United Kingdom
Prior art keywords
switch
studs
test lamp
wiper
knob
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
GB2870953A
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 GB2870953A priority Critical patent/GB741528A/en
Publication of GB741528A publication Critical patent/GB741528A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q11/00Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005Testing of electric installations on transport means
    • G01R31/006Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Audible And Visible Signals (AREA)

Abstract

741,528. Circuit testing. HEIMBERGER, H. Oct. 17, 1953, No. 28709/53. Class 37. [Also in Group XXXVII] In Fig. 1 a two-way switch 12 may be operated to insert signal device 13 (e.g. a test lamp) in series with load 14 so as to indicate whether load 14 (e.g. car headlamp) is working. The signal device 13 may be mounted on switch 12 and this is shown accomplished in Figs. 2 and 3 as by providing a test lamp 39 fitted behind transparent switch knob 35 and to check circuit continuity the knob 35 is rotated to insert wiper 41 in turn between resilient switch studs 33 and contact plates 26-28 whereby test lamp 39 is introduced in succession in the circuits to studs 33 and fails to light if a car headlamp breakdown or other open circuit condition has occurred. The wiper 41 comprises an insulating plate faced with conducting plates and the switch studs 33 are made resilient by helical springs 34. The contact plates 26-28 may be respectively connected to different supply sources.
GB2870953A 1953-10-17 1953-10-17 Supervisory device for electrical installations Expired GB741528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2870953A GB741528A (en) 1953-10-17 1953-10-17 Supervisory device for electrical installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2870953A GB741528A (en) 1953-10-17 1953-10-17 Supervisory device for electrical installations

Publications (1)

Publication Number Publication Date
GB741528A true GB741528A (en) 1955-12-07

Family

ID=10279848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2870953A Expired GB741528A (en) 1953-10-17 1953-10-17 Supervisory device for electrical installations

Country Status (1)

Country Link
GB (1) GB741528A (en)

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