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    • 35. 发明专利
    • Improvements in or relating to Pulp Strainers for use in the Paper or Cellulose Manufacture.
    • GB190919366A
    • 1909-12-16
    • GB190919366D
    • 1909-08-23
    • LEHMANN RUDOLF
    • LEHMANN RUDOLF
    • D21D5/06
    • 19,366. Lehmann, R. Aug. 26, 1908, [Convention date]. Rotary filters or strainers.-The cylindrical casing d is caused to make approximately circular or elliptic oscillations so that radial impulses are given at all points on the surface of the rotary strainer n. The casing is connected to the standards by means of rubber aprons e, and is supported on two fork-shaped arms f, each of which is pivoted near its centre to a lever g by means of a common rod j, and is connected at its lower end to an eccentric i on a shaft h. The throw of the eccentrics can be varied. On the outer side of the pivots, the lever, g are attached to springs which cushion the weight of the casing and its contents. There are fly-wheels m on the shaft h. Tight joints are made at the ends of the casing by means of felt bands o, p, tightened by means of metal bands. The strainer is rotated by means of planetgear u, a shaft t, a pinion s, and a toothed rim r. The Specification in the original form, as open to inspection under Section 91 (3) (a), comprises also an arrangement in which the shaft passing through the joints of the arms f is journaled by means of slide blocks in vertical guides and an arrangement for guiding the joints similar to that of the Evan guide. This subject-matter-does not appear in the Specification as accepted.