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529. Pulsation and milking rate

  • P. A. Clough (a1), F. H. Dodd (a1) and E. W. Hughes (a1)


The pulsator mechanism of the double-action milking machine causes the rhythmical expansion and collapse of the rubber teat-cup liner during milking by alternately applying a partial vacuum (usually 13–15 in. Hg) and admitting atmospheric air to the space between the rubber liner and the teat-cup shell. The inside of the liner is subjected to continuous partial vacuum.



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(1)Whittleston, W. G. (1946). N.Z. J. Sci. Tech. A, 27, 445.
(2)Smith, V. R. & Petersen, W. E. (1946). J. Dairy Sci. 29, 45.
(3)Whittleston, W. G. & Verrall, S. A. (1947). N.Z. J. Sci. Tech. A, 28, 406.
(4)Foot, A. S. (1935). J. Dairy Res. 6, 313.
(5)Dodd, F. H. (1953). J. Dairy Res. 20, 301.


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