GB741528A - Supervisory device for electrical installations - Google Patents
Supervisory device for electrical installationsInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
-
- 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
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing 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.
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) |
-
1953
- 1953-10-17 GB GB2870953A patent/GB741528A/en not_active Expired
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