GB189921714A - An Apparatus for Detecting Explosive Gas or Dust in the Atmosphere. - Google Patents
An Apparatus for Detecting Explosive Gas or Dust in the Atmosphere.Info
- Publication number
- GB189921714A GB189921714A GB189921714DA GB189921714A GB 189921714 A GB189921714 A GB 189921714A GB 189921714D A GB189921714D A GB 189921714DA GB 189921714 A GB189921714 A GB 189921714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dust
- rise
- temperature
- explosive gas
- alarm
- 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
Abstract
21,714. Simons, C. E. G. Oct. 31. Explosive gases, detecting.-A catalytic substance heated to a suitable temperature is brought into contact with air containing explosive gas or dust, and the rise of temperature or its effect is observed or used to give an alarm. In the form shown in Fig. 1, a coil of platinum wire A enclosed in a gauze-ended receptacle is balanced against a resistance or lamp E on a Wheatstone bridge which has been calibrated for different percentages. In a modification, the decrease of current caused by the heating of this circuit liberates the armature of an electromagnet, which thereupon completes an alarm circuit. In another form, the rise of temperature causes a mercury thermometer to complete an alarm circuit. Observations on filtered air show the presence of dust by difference. The apparatus may be portable or otherwise arranged.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB189921714T | 1899-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB189921714A true GB189921714A (en) | 1900-10-27 |
Family
ID=32360044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB189921714D Expired GB189921714A (en) | 1899-10-31 | 1899-10-31 | An Apparatus for Detecting Explosive Gas or Dust in the Atmosphere. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB189921714A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005101431A1 (en) * | 2004-04-16 | 2005-10-27 | Siemens Aktiengesellschaft | Method and device for detecting the degree of pollution in an operational converter |
-
1899
- 1899-10-31 GB GB189921714D patent/GB189921714A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005101431A1 (en) * | 2004-04-16 | 2005-10-27 | Siemens Aktiengesellschaft | Method and device for detecting the degree of pollution in an operational converter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3479257A (en) | Methods and apparatus for measuring the content of hydrogen or reducing gases in an atmosphere | |
US2583930A (en) | Gas analyzer and smoke detector | |
US3778229A (en) | Ozone gas detector | |
US3507145A (en) | Indium sesquioxide thin film combustible gas detector | |
JPH0517650Y2 (en) | ||
GB189921714A (en) | An Apparatus for Detecting Explosive Gas or Dust in the Atmosphere. | |
GB711584A (en) | Dew-point measuring device | |
US1953244A (en) | Method and apparatus for the detection of combustion vapors | |
JPH0249466B2 (en) | ||
JP4662199B2 (en) | Humidity detector | |
US1880941A (en) | Apparatus for detecting and estimating inflammable gases in air | |
US2851411A (en) | Electrochemical gas-tester | |
US1979976A (en) | Gas detector | |
JPS6214778B2 (en) | ||
Okazaki et al. | A novel method of temperature compensation for a stable combustion-type gas sensor | |
JPS56168543A (en) | Method for constituting bridge circuit for gas detection | |
JPS6318916Y2 (en) | ||
EP0701123A1 (en) | Formaldehyde vapour detector | |
US2639610A (en) | Furnace atmosphere indicator | |
GB761055A (en) | Improvements in methods and apparatus for detecting and measuring the concentration of gases | |
JPH053974Y2 (en) | ||
JPH053973Y2 (en) | ||
JPS6128934B2 (en) | ||
JPS618654A (en) | Production of gas detecting element | |
JPH07167813A (en) | Smell sensor |