Paper making and fiber liberation – Processes and products – With measuring – inspecting and/or testing
73 63, 137 92, 162263, D21F 706, G01N 1500
Apparatus in which a sample of pulp flowing through a conduit is periodically introduced into a cylinder. The pulp is deposited upon the strainer element of a piston assembly so as to form a fiber cake which, after formation, is utilized to test the flow of water therethrough over a predetermined time interval in order to measure the degree of beating of the pulp flowing through the conduit. In order to form a fiber cake upon the piston strainer element in which the layers are of substantially uniform density, water at a pressure higher than that utilized during the test period is introduced into the test cylinder and in a direction substantially tangential to the interior surface of the cylinder in order to set up a rotating flow of fluid facilitating formation of fiber cake layers of uniform density.
patent: 3110172 (1963-11-01), Irwin
patent: 3186215 (1965-06-01), Danforth
patent: 3538749 (1970-11-01), Danforth
patent: 3611789 (1971-10-01), Lopas
patent: 3688563 (1972-09-01), Enarsson et al.
AB Kalle-Regulator, Industrivagen
Lindsay, Jr. Robert L.
Yeung George C.
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