| 摘要 |
957,870. Flexible elbows. ALFA-LAVAL CO. Ltd. Feb. 15, 1963 [Feb. 15, 1961], No. 46054/61. Headings F2G and F2V. [Also in Division A1] A flexible elbow, situated between a container and a flexible milk tube, has two arms 21, 22 set at an angle to each other, one arm 21 fitting a nipple on the container and the other arm 22 having a rigid connector 23 secured to it. Projecting from the elbow is a tubular outlet 26 into which a drain plug 27 or a sampling valve 30 can be inserted. Valves. The valve 30 comprises a body 31 of high impact ebonite. A ring 34, which fits a recess in the body 31 carries resiliently flexible arms 33 connected to a valve ball 32. As shown (Fig. 3) the tension in the arms 33 holds the ball 32 in a sealing position but the arms are sufficiently elastic to allow the ball to be displaced to open the valve.
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