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    • 90. 发明专利
    • Improvements in mixing machines
    • GB708264A
    • 1954-05-05
    • GB769951
    • 1951-04-03
    • NELSON ERIC GOWINGJOHN WARREN ERIC NORMANNORCON LTD
    • B01F7/16
    • 708,264. Mixing appliances. GOWING, N. E., NORMAN, J. W. E., and NORCON,Ltd. March 24, 1952 [April 3, 1951], No. 7699/51. Class 86 A mixer comprises a trough 1 having parallel sides and arcuate ends, a spindle 11 carried by a support 14 capable of horizontal reciprocation on rods 16, a driving crank 8 and a connecting rod 17 between the crank pin 8a and spindle 11 for imparting horizontal reciprocation to the spindle. Pinions 18 and 19 are secured respectively to the crank pin 8a and spindle 11, and a chain drive 20 between the pinions 18 and 19 imparts rotation to the spindle 11 from the rotation of the crank 8 with a step up ratio of one to three. Blades 9a are supported from the spindle at a radial distance from the centre of rotation which is slightly less than the radius of curvature of the arcuate ends of the trough so that they sweep close to the side and end walls during their movement. The blades 9a do not extend to the top of the trough so that when the trough is filled the bottom material is swept forward resulting in a turning over of the material. The spindles may be swept forwardly to assist this action.