GB567471A - Improvements in snap action electric switches - Google Patents
Improvements in snap action electric switchesInfo
- Publication number
- GB567471A GB567471A GB1303943A GB1303943A GB567471A GB 567471 A GB567471 A GB 567471A GB 1303943 A GB1303943 A GB 1303943A GB 1303943 A GB1303943 A GB 1303943A GB 567471 A GB567471 A GB 567471A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- contacts
- circuit
- heater
- blade
- 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
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/60—Means for producing snap action
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
567,471. Thermal switches ; actuation of switches ; contacts. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and ROSEBY, P. N. Aug. 12, 1943, No. 13039. [Class 38 (v)] A pair of spring blades 19, 20 are interconnected by a spring 21 to form a toggle which is movable in opposite directions by bimetal elements 13, 14 insulatingly carrying heater coils 15, 16. The lower blade 20 carries a contact engageable with either of two load-contacts 17, 18, for which purpose the U-shaped support 10 is preferably metallic and connected to one pole. The contact 20 may also open the heater circuit after it has been changed over, but preferably the blade 19 carries a contact co-operating with a contact on each strip 13, 14 to open the appropriate heater circuit. By insulating the blades 19, 20 from one another, the load and heater circuits can be kept independent. Circuit diagrams are set out in Figs. 4-6 (not shown), Specification 566,122, [Group XXXVIII], being referred to in respect of one circuit. Contacts.-To ensure proper engagement of the upper-blade contact when being pushed by the strips, it is made of a bar of precious metal with its axis at right-angles to similar bars on the strips themselves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1303943A GB567471A (en) | 1943-08-12 | 1943-08-12 | Improvements in snap action electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1303943A GB567471A (en) | 1943-08-12 | 1943-08-12 | Improvements in snap action electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB567471A true GB567471A (en) | 1945-02-15 |
Family
ID=10015684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1303943A Expired GB567471A (en) | 1943-08-12 | 1943-08-12 | Improvements in snap action electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB567471A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840657A (en) * | 1955-03-23 | 1958-06-24 | Illinois Tool Works | Two circuit snap switch |
| US2905780A (en) * | 1956-09-24 | 1959-09-22 | Cherry Electrical Prod | Snap-action switches |
| US2905781A (en) * | 1956-09-24 | 1959-09-22 | Cherry Electrical Prod | Gang type snap-action switch |
-
1943
- 1943-08-12 GB GB1303943A patent/GB567471A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840657A (en) * | 1955-03-23 | 1958-06-24 | Illinois Tool Works | Two circuit snap switch |
| US2905780A (en) * | 1956-09-24 | 1959-09-22 | Cherry Electrical Prod | Snap-action switches |
| US2905781A (en) * | 1956-09-24 | 1959-09-22 | Cherry Electrical Prod | Gang type snap-action switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB882850A (en) | Improvements in and relating to snap action electrical switches and a process for making the switches | |
| GB567471A (en) | Improvements in snap action electric switches | |
| GB1090456A (en) | Miniature electric circuit-breakers | |
| GB769506A (en) | Snap action circuit breaker | |
| GB769505A (en) | Snap action electric switches | |
| GB576821A (en) | Improvements relating to thermostatic switches for controlling electric circuits | |
| GB1272335A (en) | Electrical switch | |
| GB816636A (en) | Improvements in or relating to electric contact arrangements | |
| GB428874A (en) | Improvements in electric switches specially applicable to switches for thermostats | |
| ES308628A1 (en) | Improvements in or relating to single-pole or multi-pole switching devices of the snap-action and double break type | |
| GB850983A (en) | Improvements in snap action electric relays | |
| GB627152A (en) | Improvements in or relating to bimetallic snap-acting thermostats | |
| GB856945A (en) | Snap action electric switch | |
| GB784567A (en) | Improvements in thermally operated overload circuit breakers | |
| GB732467A (en) | Thermally-operated electric circuit breakers | |
| GB575823A (en) | Improvements in and relating to electric switches with electrodynamically-reinforcedcontact | |
| GB601088A (en) | Improvements in and relating to overload relays | |
| GB851472A (en) | Thermally-operative cut-out devices for electric heating elements | |
| GB884603A (en) | Electric circuit control apparatus | |
| GB808058A (en) | Bread toaster | |
| GB574372A (en) | Improvements in thermally-operated electric relays and switches | |
| GB575789A (en) | Improvements in and relating to thermostatic switches | |
| GB622781A (en) | Improvements in or relating to snap-action electric switches | |
| GB665181A (en) | Improvements relating to thermal overload cut-outs for electrical apparatus | |
| GB574434A (en) | Improvements in electric circuit breakers |