GB190010527A - An Improved Apparatus and Means fo Ascertaining the Velocity of Air Currents, notably in Coal Mines. - Google Patents
An Improved Apparatus and Means fo Ascertaining the Velocity of Air Currents, notably in Coal Mines.Info
- Publication number
- GB190010527A GB190010527A GB190010527DA GB190010527A GB 190010527 A GB190010527 A GB 190010527A GB 190010527D A GB190010527D A GB 190010527DA GB 190010527 A GB190010527 A GB 190010527A
- Authority
- GB
- United Kingdom
- Prior art keywords
- velocity
- bearing
- spindle
- coal mines
- air currents
- 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
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
10,527. Thompson, J. June 9. Anemometers.-In an apparatus for measuring the velocity of air currents, particularly in coal mines, the bearing e of the spindle a, which is operated by hemispherical cups c, is surrounded by a cup h in a chamber g filled with non-conducting liquid such as petroleum oil, which will lubricate and prevent access of dust, gas, &c. to the bearing. At the top of the spindle a flange o depends into an oil cup n in the steadying-bearing m. As the spindle rotates, a cam s alternately makes and breaks contact with a spring t, fixed to an insulating-block v, so as to close and open an electric circuit between two terminals y and w outside a tight-fitting or sealed casing k. The cups c are adjusted on the arms b by nuts d. A bell &c. is arranged in the electric circuit so as to determine the velocity of rotation, from which the velocity of the current and the amount of air passing per unit of time can be calculated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190010527T | 1900-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190010527A true GB190010527A (en) | 1901-06-08 |
Family
ID=32148717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190010527D Expired GB190010527A (en) | 1900-06-09 | 1900-06-09 | An Improved Apparatus and Means fo Ascertaining the Velocity of Air Currents, notably in Coal Mines. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190010527A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006056029A2 (en) * | 2004-11-26 | 2006-06-01 | Universiteit Gent | Method and device for measuring a differential pressure in a fluid flow |
-
1900
- 1900-06-09 GB GB190010527D patent/GB190010527A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006056029A2 (en) * | 2004-11-26 | 2006-06-01 | Universiteit Gent | Method and device for measuring a differential pressure in a fluid flow |
| WO2006056029A3 (en) * | 2004-11-26 | 2006-07-06 | Univ Gent | Method and device for measuring a differential pressure in a fluid flow |
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