GB437288A - Improvements in or relating to temperature or fire alarm systems - Google Patents
Improvements in or relating to temperature or fire alarm systemsInfo
- Publication number
- GB437288A GB437288A GB12658/34A GB1265834A GB437288A GB 437288 A GB437288 A GB 437288A GB 12658/34 A GB12658/34 A GB 12658/34A GB 1265834 A GB1265834 A GB 1265834A GB 437288 A GB437288 A GB 437288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercury
- circuit
- switch
- float
- 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
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 7
- 229910052753 mercury Inorganic materials 0.000 abstract 7
- 239000011521 glass Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR437288X | 1933-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB437288A true GB437288A (en) | 1935-10-28 |
Family
ID=8899792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12658/34A Expired GB437288A (en) | 1933-04-28 | 1934-04-26 | Improvements in or relating to temperature or fire alarm systems |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE401836A (enrdf_load_stackoverflow) |
FR (2) | FR773864A (enrdf_load_stackoverflow) |
GB (1) | GB437288A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114243501B (zh) * | 2022-02-28 | 2022-05-17 | 广东中兴电器开关股份有限公司 | 基于物联网云组态的智能远程监控开关柜及其控制方法 |
-
1933
- 1933-08-19 FR FR773864D patent/FR773864A/fr not_active Expired
-
1934
- 1934-02-03 FR FR44396D patent/FR44396E/fr not_active Expired
- 1934-03-06 BE BE401836D patent/BE401836A/xx unknown
- 1934-04-26 GB GB12658/34A patent/GB437288A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR44396E (fr) | 1934-12-29 |
FR773864A (fr) | 1934-11-27 |
BE401836A (enrdf_load_stackoverflow) | 1934-04-30 |
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