GB600251A - Improvements relating to electric switches with quick make and break - Google Patents
Improvements relating to electric switches with quick make and breakInfo
- Publication number
- GB600251A GB600251A GB1481344A GB1481344A GB600251A GB 600251 A GB600251 A GB 600251A GB 1481344 A GB1481344 A GB 1481344A GB 1481344 A GB1481344 A GB 1481344A GB 600251 A GB600251 A GB 600251A
- Authority
- GB
- United Kingdom
- Prior art keywords
- break
- poles
- movable contact
- improvements relating
- fixed contact
- 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
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
- H01H37/66—Magnetic reinforcement of contact pressure; Magnet causing snap action
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
- H01R13/7137—Structural association with built-in electrical component with built-in switch the switch being a safety switch with thermal interrupter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
- H01H2001/545—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force having permanent magnets directly associated with the contacts
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
600,251. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., SIMS, W. J., and FELLA, J. H. Aug. 3, 1944, No. 14813. Drawings to Specification. [Class 38 (v)] The thermal switch of Specification 600,250 comprises a movable contact of magnetic material which is held attracted to the two poles of a permanent magnet forming the cooperating relatively-fixed contact until a spring carrying the movable contact is sufficiently strained, after which a quick break ensues. The surfaces of the contacts are coated with a highly conductive metal, such as silver, the fixed contact being resiliently and adjustably mounted and consisting of a disc made of an alloy of iron, nickel and cobalt with a transverse slot formed in the surface to form the poles of the magnet, and the spring being mounted on a bimetal strip. Specifications 423,897, [Group II], and 528,099 also are referred to. Reference has been directed by the Comptroller to Specification 432,100.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB600251A true GB600251A (en) | 1948-04-05 |
Family
ID=1731040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1481344A Expired GB600251A (en) | 1944-08-03 | Improvements relating to electric switches with quick make and break |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB600251A (en) |
-
1944
- 1944-08-03 GB GB1481344A patent/GB600251A/en not_active Expired
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