http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1013745-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_08c1f30c205e950c6ca135eb1eea7502 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N7-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01L3-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-2025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N7-14 |
| filingDate | 1964-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1013745-A |
| titleOfInvention | Method and apparatus for the direct quantitative determination of gases |
| abstract | 1,013,745. Gas Analysis. LABORATORY EQUIPMENT CORPORATION. March 16, 1964 [April 5,1963], No. 10987/64. Headings G1B and G1N. The quantity of gas, or of each gas, produced by treating a sample 24 is measured by firstly drawing the gas or gases into a stream of carrier gas which circulates in a loop comprising the duct 16, the sample chamber 22 two valves 30, 38 (in position shown in Fig. 1) and a cold trap 50 which liquifies the sample gases; and by secondly evaporating the liquid in the cold trap into a second stream of carrier gas flowing in the loop comprising the duct 68, the reference side 70 of a thermal conductivity cell 72, the valves 38, 30, (their rotors having been turned through 90 degrees), the cold trap, the stop-cock 38, a chromatographic column 88 and the measuring side 76 of the conductivity cell. A sample of steel may be heated in a crucible 24 to yield gases such as N 2 , CO,SO 2 ,&c.,and the carrier gas,for example helium, is supplied from 10 via a needle valve and a flow meter 15, 69 in each loop. The two sides of the thermal conductivity cell are arranged in a D.C. or A.C. bridge (Fig. 5 not shown) whose output is integrated by motors M, one motor being used for each gas tested, and the gases being fed separately and successively to the two sides of the conductivity cell from the chromatographic column 88. The two-position valves 30, 38 may be mounted on, and operated by, the same spindle (also Fig. 4 not shown). The trap 50 is surrounded by say a liquid helium bath 54 during the first cycle and heated by a coil 52 during the second cycle, the removal of the bath 54 closing a switch 56 in the heating coil circuit. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3498107-A |
| priorityDate | 1963-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID23987 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419577374 |
Total number of triples: 21.