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    • 4. 发明专利
    • Improvements in mixing and kneading apparatus
    • GB237889A
    • 1926-02-11
    • GB1811025
    • 1925-07-15
    • LOUIS ROBERT LEVY
    • B01F27/75
    • 237,889. Levy, L. R. July 29, 1925, [Convention date]. Stationary batch-mixers with rotary stirrers.- .A mixing and dough-kneading machine comprises a rotating cylindrical or stationary hemi-spherical trough in which freely mounted rollers carried on radial arms are rotated, a central cylinder being provided which is of relatively large diameter and leaves a small clearance between itself and the rollers. In the form shown the central cylinder is omitted and the hemi-spherical trough 1 in which are rotated the beater, consisting of rollers 5, 6 mounted on arms 7, is tiltably mounted for discharging. The central cylinder may be driven oppositely to the beaters. The rollers 5, 6 may be mounted in slots in the arms 7 under spring influence. According to the Specification as open to inspection under Sect 91 (3) (a), the central cylinder may be omitted or replaced by a paddle. 'This subject-matter does not appear in the Specification as accepted.
    • 7. 发明专利
    • Apparatus for mixing liquids having different temperatures
    • GB170852A
    • 1922-03-23
    • GB2830021
    • 1921-10-25
    • LOUIS ROBERT LEVY
    • B01F15/00
    • 170,852. LÚvy, L. R. Oct. 26, 1920, [Convention date]. Mixing fluids or flow.-Relates to a device for mixing liquids of different temperatures in such a manner as to produce a mixture of constant temperature, and consists in arranging that the colder liquid flows into the mixing vessel at a constant pressure through a valve which is automatically regulated by the temperature of themixing vessel. The apparatus comprises a mixing-vessel a, Fig. 1, to which the warmer liquid is supplied through a pipe b, and a receiving-vessel c for the cooler liquid which is arranged above the mixing-vessel. The cooler liquid is supplied to the vessel c through a pipe d controlled by a float valve e, so that a constant level of liquid is maintained. A pipe h leads from the vessel c to one side of a valve i, Fig. 2, the space at the side of which communicates by a tube n with a perforated tube m through which the liquid in the vessel a flows to the outlet pipe o. A rod e, of material which expands readily under the influence of heat, is fixed at one end to the tube m and at the other end to the valve i. Thus the expansion and contraction of the rod l controls the opening of the valve i, and the inflow of cooler liquid is regulated according to the temperature of the mixture flowing out through the tube m. Overflow pipes p keep a constant level of liquid in the vessel a.