http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-995117-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7d66f6c7de1119f517957d4c7f3e4702 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C2217-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C2218-152 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C2217-212 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C2217-22 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C17-245 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C17-245 |
| filingDate | 1963-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-995117-A |
| titleOfInvention | Method and apparatus for treating glass |
| abstract | <PICT:0995117/C1/1> <PICT:0995117/C1/2> In the manufacture of glassware with a scratch-resistant surface in which an article is formed from plastic glass and finally annealed, the surface of the article is treated, prior to the annealing step, by contacting it with a mixture consisting of the vapour of a hydrolysable metallic compound and an inert substantially anhydrous gas to deposit on the article surface an oxide of the metal contained in the compound. Glassware W from a forming machine 10 is passed on a conveyer belt 12 through a treating tunnel 18 and is then engaged by an arm 34 on a belt 36 passing round rollers 38 and 40 such that the run of belt 36 adjacent the conveyer 12 is at right angles thereto. The arms 34 pass the ware W over a dead plate 46 on to a conveyer belt 48 by which the ware is passed into an annealing lehr 58 through which the ware passes in parallel rows in the direction of arrow 59. As shown in Fig. 2, the tunnel 18 comprises top 22 and side walls 20 extending to below the belt 12 and treating gas is passed into the tunnel through a conduit 24 with side tubes 26, 28, each having a number of nozzles 30 with flattened ends 32, the nozzles 30 being arranged to cover the whole surface of the ware W except the bottom. The nozzles are angled, as shown, those on the left pointing towards the front of the tunnel 18 and those on the right towards the exit, with the top nozzle on each side downwardly against the shoulder of the ware W. To complete the surface treatment, a similar nozzle is positioned under the dead plate 46 which is provided with arcuate apertures 50, so that the whole of the bottom of the ware W is reached by the treating gas. Since the period of treatment is short, 0.1 to 3 secs., the gas is blown at a relatively high rate such as 100 ft./min. The treating compounds suggested are organic or inorganic compounds of Ti or Zr such as alkyl titanates or zirconates, tetra-isopropyl titanate, tetra-t-butyl zirconate, titanium tetra-chloride or metallo-organic esters. The inert gaseous carrier is preferably dry air, but dry nitrogen is also suggested. Hydroxyl groups in the ware surface are believed to react with the hydrolysable compound. U.S.A. Specifications 1,626,703, 1,833,623, 1,991,708, 2,458,040, 2,711,616, 2,831,780 and 3,004,863 are referred to. |
| priorityDate | 1962-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.