GB1228318A - - Google Patents
Info
- Publication number
- GB1228318A GB1228318A GB1228318DA GB1228318A GB 1228318 A GB1228318 A GB 1228318A GB 1228318D A GB1228318D A GB 1228318DA GB 1228318 A GB1228318 A GB 1228318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- turn
- disc
- tube
- cooling
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N2001/222—Other features
- G01N2001/2223—Other features aerosol sampling devices
Abstract
1,228,318. Gas analysis. GEORGIA TECH RESEARCH INSTITUTE. June 11, 1969, No.29537/69. Heading G1B . Apparatus for collecting particulate matter from a gas stream comprises a housing 1 containing a motor 10 for driving a shaft 11 with a turntable 12, and a sample collecting substrate disc 13 being disposed on the turn-table, a gas inlet fitting 5 with a tube 6 to pass gas to be sampled through a heater 8 to impinge on the periphery of the disc 13, the gas leaving by way a gap 14 round the edge of the turn-table 12 to enter a cooling chamber 21 wherein it is mixed with cooling air entering via vents 20 in the walls of the housing 1, the gases then passing to a chamber 22 containing a fan 17 by way of a conduit 15 the inlet of which is disposed adjacent, the underside of the turn-table 12 in alignment with the tube 6 so that the gas stream entering the conduit 15 effectively cools the turn-table 12 and disc 13. The temperature gradient caused by the heading of the gas in the tube 6 and the cooling of the turn-table 12 causes particulate matter in the gas to be deposited as a strip on the rotating disc 13, and this gives a representative sample per unit of time which may easily be adjusted by altering the speed of rotation of the turn-table 12.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2953769 | 1969-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1228318A true GB1228318A (en) | 1971-04-15 |
Family
ID=10293111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1228318D Expired GB1228318A (en) | 1969-06-11 | 1969-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1228318A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2144850A (en) * | 1983-08-12 | 1985-03-13 | Burkard Manufacturing Company | Air samplers |
| GB2158233A (en) * | 1984-05-03 | 1985-11-06 | Coal Ind | Improvements in dust collection |
-
1969
- 1969-06-11 GB GB1228318D patent/GB1228318A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2144850A (en) * | 1983-08-12 | 1985-03-13 | Burkard Manufacturing Company | Air samplers |
| GB2158233A (en) * | 1984-05-03 | 1985-11-06 | Coal Ind | Improvements in dust collection |
| US4616513A (en) * | 1984-05-03 | 1986-10-14 | Coal Industry (Patents) Limited | Dust collection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |