| 摘要 |
Machine for randomly drawing balls according to Claim 1 of the principal application, characterised in that the annular space 5 is traversed by an axially movable tube 17, whose internal diameter is slightly greater than that of the balls 1, the said tube including in its upper part means for resisting the untimely introduction of a ball, for keeping a ball trapped towards the extremity of the said tube and for removing it. The tube exhibits, towards its lower part, a lateral orifice 18 which may coincide with the inlet orifice 19 of a fixed tubing 20. <IMAGE>
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