| 摘要 |
1,180,849. Conveying by buoyancy. EALING CORP. 6 March, 1968 [15 June, 1967], No. 10953/68. Heading B8A. [Also in Division F2] An air-table of laminate structure comprises a support layer 22 made up of elongated, hollow cells, the axes of which are parallel and perpendicular to the plane of the table, two sheets 20, 30 of rigid material impervious to air and moisture affixed to opposite surfaces of the support layer, air conduits 28 joining together adjacent cells, and perforations 32 in the top sheet.. |
