| 摘要 |
965,130. Filter and coalescer elements. BRIGGS FILTRATION CO. April 19, 1962 [Oct. 4, 1961], No. 15390/62. Heading B1D. A filter comprises a hollow cylindrical member made up of a first lamination of fibreglass 14 having fibres disposed in a radial direction parallel with the flow of liquid through the filter and wrapped in cotton gauze 16, a successive layer of spirally-wound fibreglass 18 having fibres disposed radially to the flow of liquid and of greater density than the first layer to effect an increase of filtering action and wrapped in cotton gauze 19, a layer of non- moulded fibreglass convolute wrap 20, a spirally wrapped screen of fibreglass 22 and a layer of fibreglass 24 supported by a spirally wrapped screen of fibreglass 26, which assembly is then heated to bond the layer 24 to the screen 26, before being wrapped with a layer of fibreglass 28 and an outer layer of cellulose acetate felt 32, which is fungus resistant and causes water to coalesce. The resulting construction is then treated with adhesive at its opposite ends and a gasket of resinous or rubber material 34 and a flanged disc support plate 36 of, e.g., metal is joined to each end of the filter to provide reinforcement and a seal. A nylon sock is pulled over the outer layer 32 of the filter and an end cap 40 of, e.g., rubber is placed on each end of the filter.
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