GB793564A - Snap action electric switches - Google Patents
Snap action electric switchesInfo
- Publication number
- GB793564A GB793564A GB23945/55A GB2394555A GB793564A GB 793564 A GB793564 A GB 793564A GB 23945/55 A GB23945/55 A GB 23945/55A GB 2394555 A GB2394555 A GB 2394555A GB 793564 A GB793564 A GB 793564A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- switch
- ribbon
- pilot lamp
- heat
- 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
- H01H61/00—Electrothermal relays
- H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
Landscapes
- Tumbler Switches (AREA)
- Laser Surgery Devices (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
793,564. Thermal switches. SIGNALSTAT CORPORATION. Aug. 19, 1955 [April 8, 1955], No. 23945/55. Class 38 (5). A snap-acting electric switch incorporates a resilient vane 10 described in Specification 761,713, [Group XXXII], and comprises an improvement on the switch disclosed in copending Specification 762,046, the improvement being constituted in that the moving contact 60 of the pair of auxiliary contacts 55, 60 controlling the pilot lamp PL is carried on a conductive spring arm 65 secured to the heat expansible ribbon 30 near the centre point thereof, such that when the contol switch 45 is closed and the ribbon 30 begins to heat up the contacts 55, 60 make before the contacts 25, 35 open and, due to the residual heat in the ribbon 30, stay made as long as the switch 45 is closed, the pilot lamp supply being controlled through the contacts 25, 35. The signal lamps SL-1, SL-2 and the pilot lamp PL flash together in synchronism.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US500087A US2737553A (en) | 1955-04-08 | 1955-04-08 | Snap-action vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB793564A true GB793564A (en) | 1958-04-16 |
Family
ID=23987985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23945/55A Expired GB793564A (en) | 1955-04-08 | 1955-08-19 | Snap action electric switches |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2737553A (en) |
| DE (1) | DE1195394B (en) |
| FR (1) | FR1137692A (en) |
| GB (1) | GB793564A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2842642A (en) * | 1956-06-13 | 1958-07-08 | Hoda Corp | Time delay devices |
| US2907850A (en) * | 1957-06-06 | 1959-10-06 | Hoda Corp | Snap action devices |
| US3022402A (en) * | 1959-09-02 | 1962-02-20 | Texas Instruments Inc | Electrical switches |
| US3174012A (en) * | 1961-06-15 | 1965-03-16 | Tung Sol Electric Inc | Vane snap action device having movable heater means for voltage and temperature compensation |
| US3122620A (en) * | 1961-06-20 | 1964-02-25 | Signal Stat Corp | Voltage and temperature compensated vane flasher |
| US3098139A (en) * | 1961-07-27 | 1963-07-16 | Signal Stat Corp | Current operated flasher with voltage and temperature compensation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2299562A (en) * | 1940-03-26 | 1942-10-20 | Wilcolator Co | Snap acting device and method of making the same |
| USRE24023E (en) * | 1951-07-21 | 1955-06-14 | Schmidinger |
-
1955
- 1955-04-08 US US500087A patent/US2737553A/en not_active Expired - Lifetime
- 1955-08-19 GB GB23945/55A patent/GB793564A/en not_active Expired
- 1955-10-17 DE DES46026A patent/DE1195394B/en active Pending
- 1955-10-21 FR FR1137692D patent/FR1137692A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1195394B (en) | 1965-06-24 |
| US2737553A (en) | 1956-03-06 |
| FR1137692A (en) | 1957-06-03 |
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