| 摘要 |
FIELD: agriculture, in particular, massaging equipment for animal's udder. ^ SUBSTANCE: pneumatic massaging apparatus has bell-shaped device with suction pipe and four branch pipes connected to vacuumizer. There is branch pipe embedded into bottom of bell-shaped device. Holder is inserted into said branch pipe for vertical displacement and fixing therein. Holder is furnished in its upper part with elastic membrane having perforated concave member fixed centrally of said membrane and communicating with variable pressure source. Holder has partition wall with air guide equipped with variable pressure source and having electric engine. Bypass valve positioned within transverse opening of air guide is attached to rotor of electric engine. Electric engine is joined to current source through multivibrator. Primary cell or secondary cell is used as current source. ^ EFFECT: simplified construction of variable pressure source, variable pulsing rate, increased efficiency and enhanced reliability in operation of pneumatic massaging apparatus. ^ 3 cl, 3 dwg
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