SUPPORT A DEPRESSION A CHAMBRES MULTIPLES, UTILISE POUR LA MISE EN FORME DE FEUILLES DE VERRE, AVEC DES MOYENS D'ISOLEMENT DES CHAMBRES A VIDE VOISINES
Multiple chamber vacuum holders for use in shaping sheets of glass or other heat-softenable material to complex shapes require a different level of vacuum in adjacent vacuum chambers. A porous fiber glass cover used with such vacuum holders provide passages for residual air in adjacent passages to t...
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| creator | ROBERT GEORGE FRANK ET JOHN JOSEPH EWING |
| description | Multiple chamber vacuum holders for use in shaping sheets of glass or other heat-softenable material to complex shapes require a different level of vacuum in adjacent vacuum chambers. A porous fiber glass cover used with such vacuum holders provide passages for residual air in adjacent passages to tend to equalize when a sheet is held against the porous cover. The present invention helps maintain a difference in level of vacuum between adjacent vacuum chambers by interposing a narrow space vented to atmosphere between adjacent vacuum chambers of the multiple chamber vacuum holder. |
| format | Patent |
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A porous fiber glass cover used with such vacuum holders provide passages for residual air in adjacent passages to tend to equalize when a sheet is held against the porous cover. The present invention helps maintain a difference in level of vacuum between adjacent vacuum chambers by interposing a narrow space vented to atmosphere between adjacent vacuum chambers of the multiple chamber vacuum holder.</description><edition>4</edition><language>fre</language><subject>CHEMISTRY ; CONVEYING ; GLASS ; HANDLING THIN OR FILAMENTARY MATERIAL ; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES ; METALLURGY ; MINERAL OR SLAG WOOL ; PACKING ; PERFORMING OPERATIONS ; PNEUMATIC TUBE CONVEYORS ; SHOP CONVEYOR SYSTEMS ; STORING ; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING ; TRANSPORTING</subject><creationdate>1987</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870130&DB=EPODOC&CC=FR&NR=2546503B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870130&DB=EPODOC&CC=FR&NR=2546503B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ROBERT GEORGE FRANK ET JOHN JOSEPH EWING</creatorcontrib><title>SUPPORT A DEPRESSION A CHAMBRES MULTIPLES, UTILISE POUR LA MISE EN FORME DE FEUILLES DE VERRE, AVEC DES MOYENS D'ISOLEMENT DES CHAMBRES A VIDE VOISINES</title><description>Multiple chamber vacuum holders for use in shaping sheets of glass or other heat-softenable material to complex shapes require a different level of vacuum in adjacent vacuum chambers. 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A porous fiber glass cover used with such vacuum holders provide passages for residual air in adjacent passages to tend to equalize when a sheet is held against the porous cover. The present invention helps maintain a difference in level of vacuum between adjacent vacuum chambers by interposing a narrow space vented to atmosphere between adjacent vacuum chambers of the multiple chamber vacuum holder.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| recordid | cdi_epo_espacenet_FR2546503B1 |
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| subjects | CHEMISTRY CONVEYING GLASS HANDLING THIN OR FILAMENTARY MATERIAL MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL PACKING PERFORMING OPERATIONS PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS STORING TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING |
| title | SUPPORT A DEPRESSION A CHAMBRES MULTIPLES, UTILISE POUR LA MISE EN FORME DE FEUILLES DE VERRE, AVEC DES MOYENS D'ISOLEMENT DES CHAMBRES A VIDE VOISINES |
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