| 摘要 |
A hand-operated mixing device is provided in which a mixing drum, having an open end, a closed end and divergently tapered circumferential walls extending from the ends to an enlarged diameter portion intermediate the ends, an annular groove at the outer periphery of the enlarged diameter portion, and the closed end having a detachably mounted crank member terminating in a bearing shaft coaxial with the drum axis, the drum being detachably mounted on a light-weight frame having at the forward portion thereof transversely spaced rollers for engagement with the annular groove, and at the rear portion thereof a bearing orifice detachably receiving the bearing shaft of the crank handle, the positioning of the rollers and bearing orifice being such as to orient the drum axis at an angle of about 10-20'' to the horizontal to thereby elevate the open end of the drum, the light-weight frame being of knockdown construction having parts of such dimension as to permit packing when disassembled in a container adapted to closely receive the mixing drum, and the light-weight frame, when assembled, having wheels at the base of the frame and a handle at the rear portion thereof facilitating transport of the mixing drum and contents.
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