| 摘要 |
<p>Liq extractor for mixing refractory dental compsn. comprises a measuring cylinder to which the liq. is supplied from a storage tank. In the cylinder, a weighted block is disposed with adjustable height by means of a supporting feed wire which extends to the lower surface of the block. Connected to the other end of the feed wire is a liq. pump which is located beneath the cylinder for pumping liquid from the tank, and which is actuated by a time relay until the vol. of the cylinder is pumped. In the block is at least one further hole extending from its lower to its upper surface. Pref. the feed wire is inclined outwards in the lower region of the block, and ends near a side edge so that liquid is directed against the cylinder walls.</p> |
