GB169721A - Improvements in and relating to devices for the sparkless disconnection of an inductive resistance - Google Patents
Improvements in and relating to devices for the sparkless disconnection of an inductive resistanceInfo
- Publication number
- GB169721A GB169721A GB26002/21A GB2600221A GB169721A GB 169721 A GB169721 A GB 169721A GB 26002/21 A GB26002/21 A GB 26002/21A GB 2600221 A GB2600221 A GB 2600221A GB 169721 A GB169721 A GB 169721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- rod
- sparking
- coil
- spring
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
Landscapes
- Electromagnets (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electronic Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
169,721. Krupp Akt.-Ges., F. Oct. 4, 1920, [Convention date]. Addition to 158,873. Sparking-preventing devices.-Relates to a development of the method described in the parent Specification for sparklessly breaking an inductive circuit A and for destroying its residual magnetism. The Figure illustrates the position of the switches when no current is flowing. The main circuit is made or broken by moving the handle J to the left or right. On make, the spring h moves the rod H upwards and bridges the gap h', h', the coil h<2> then hnlding on. On break, the spring d<2> forces up the rod D and completes circuits C and E respectively. The circuit E energizing the coil b<3> raises the rod B and actually breaks the main circuit, and an induction current passes from the circuit A through the circuit C so that sparking is prevented. The rod H, however, being now released, a circuit is completed, viz., positive, F, A, G, E, negative, which ensures a current passing through the inductive circuit A to destroy its residual magnetism. The rod D now drops breaking circuit E to allow the rod B to drop so that the position illustrated is restored.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE346633T | 1920-02-13 | ||
| DEK74662D DE354581C (en) | 1920-02-13 | 1920-10-05 | Device for switching off an inductive resistor without sparking |
| US503251A US1503376A (en) | 1920-02-13 | 1921-09-26 | Device for cutting an inductive resistance out of circuit without sparking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB169721A true GB169721A (en) | 1922-04-27 |
Family
ID=24001324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26002/21A Expired GB169721A (en) | 1920-02-13 | 1921-10-01 | Improvements in and relating to devices for the sparkless disconnection of an inductive resistance |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US1503376A (en) |
| DE (2) | DE346633C (en) |
| FR (2) | FR534057A (en) |
| GB (1) | GB169721A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7117561B1 (en) * | 2005-02-25 | 2006-10-10 | Grass America Inc. | Low profile hinge with three-dimensional mechanical adjustment |
-
0
- US US158873D patent/USB158873I5/en active Pending
-
1920
- 1920-02-13 DE DE1920346633D patent/DE346633C/en not_active Expired
- 1920-10-05 DE DEK74662D patent/DE354581C/en not_active Expired
-
1921
- 1921-01-13 FR FR534057D patent/FR534057A/en not_active Expired
- 1921-09-26 US US503251A patent/US1503376A/en not_active Expired - Lifetime
- 1921-09-30 FR FR25478D patent/FR25478E/en not_active Expired
- 1921-10-01 GB GB26002/21A patent/GB169721A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| USB158873I5 (en) | |
| FR534057A (en) | 1922-03-17 |
| DE354581C (en) | 1922-06-13 |
| DE346633C (en) | 1922-01-05 |
| FR25478E (en) | 1923-03-17 |
| US1503376A (en) | 1924-07-29 |
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