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    • 1. 发明专利
    • Improvements relating to multi-stage axial-flow compressors or turbines
    • GB621256A
    • 1949-04-06
    • GB400947
    • 1947-02-11
    • DAVID MACLEISH SMITHJAMES FORREST SHANNONVICKERS ELECTRICAL CO LTD
    • F04D19/02
    • 621,256. Elastic-fluid turbines 'and compressors. SMITH, D. M., SHANNON, J. F., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 11, 1947, No. 4009. [Class 110(iii)] The rotor of an axial flow turbine or compressor is built up of a number of flanged discs 10 which provide an interrupted conical surface 1d to which the rotor blades are secured. Successive discs may have surfaces of a conicity diminishing towards the high-pressure end and the discs at the high-pressure end may be cylindrical. The stator casing 2 is cylindrical throughout. The rotor discs are welded together at 11 and gaps are left between the rotor hubs 10b. A shaft may be omitted and the hubs 10b formed to interengage with axial freedom. The surface of the disc flanges beyond the blade roots lies within the conical surface as at 1k, 1l to provide room for the insertion of the blades into transverse blade slots. The blade slots may be axial or inclined to the axial direction. The discs with a cylindrical surface may have circumferential blade slots. The stator blades are secured as described in Specification 620,981 and are provided with shrouding 2d to bridge the gaps in the conical surface. The shrouding is segmental and there may be one piece for each blade.
    • 5. 发明专利
    • Improvements in or relating to the filtering and like treatment of liquids
    • GB495112A
    • 1938-11-08
    • GB1342737
    • 1937-05-11
    • PINCHIN JOHNSON & COMPANY LTDWILLIAM JAMES FORREST
    • B01D29/05B01D29/15
    • 495,112. Filters or strainers. PINCHIN, JOHNSON, & CO., Ltd., and FORREST, W. J. May 11, 1937, Nos. 13427 and 18113. [Class 46] A stationary filtering element is cleansed by a reverse flow of filtrate under pressure from a header which moves over the filtrate side of the element, the matter so detached separating by gravity in the liquid to be filtered. Fig. 2 shows an inward-flow cylindrical element 1 with a wedge-shaped header 8 fixed to a hollow rotatable shaft 9 through which a portion of the filtrate can be pumped back. As shown, the liquid to be filtered is supplied through inlets 4, 5 to the upper portion of the casing and the solid matter detached from the element falls to an outlet 6a, but when the separated impurities are lighter than the liquid, lower inlets are provided and the impurities detached from the filter rise to the top. Fig. 3 shows a disc-shaped element 22 through which the liquid filters upward from an inlet 24a to an outlet 23a. Filtrate is forced back through a rotatable shaft 29 and a segmental header 25. As shown in Fig. 6, a cylindrical filter element is cleansed by a flow of filtrate through a longitudinally reciprocated hollow shaft 42 and a piston 39 comprising hollow spokes and a peripheral channel 40. A pump which draws liquid through the filter may be used to supply under pressure the filtrate used for cleansing. It is stated that the header may take the form of a hollow Archimedean screw with a series of openings or a continuous opening in the outer portion of the screw which moves over the surface of a filter drum. It is also stated that the parts above the container 24 of the apparatus shown in Fig. 3 might be arranged as a movable unit with flexible pipe connections and a flexible drive for the shaft so that the device might be immersed in a separate vessel containing the liquid to be filtered.
    • 6. 发明专利
    • Improvements in golf clubs
    • GB455608A
    • 1936-10-19
    • GB1180035
    • 1935-04-17
    • JAMES FORREST ROBERTSON
    • A63B49/08
    • 455,608. Golf clubs. ROBERTSON, J. F., 19, North St. Andrew Street, Edinburgh. April 17, 1935, No. 11800. [Class 132 (ii)] A tubular golf club shaft is provided with a detachable closure member at the upper end thereof comprising a screw threaded plug 3, Fig. 1, engaging with an internal screw thread 2. The plug 3 has a cap 31 provided with a shoulder 4 abutting the top of the shaft, the cap being formed on top of the screw head as shown in Fig. 1, and made of rubber or other resilient material or the resilient cap 8 may be secured over the head of the screw as shown in Fig. 4. Caps may be made in different colours or coloured rings may be inserted between the screw top and the end of the shaft. The screw thread on the shaft may be formed by pressing and may be strengthened by longitudinal ribs 17, Figs. 2 and 3, extending the length of the threaded portion. Reference has been directed by the Comptroller to Specification 194,823, [Class 123 (ii)].