| 摘要 |
<p>1,129,335. Pug-mills. BARMAG BARMER MASCHINEFABRIK A.G. 9 Nov., 1965 [9 Nov., 1964], No. 47487/65. Heading B1C. [Also in Division B5] Each of a number of plasticized thermoplastics is supplied to a screw extruder via a channel with which is associated a variable drive metering pump. As shown, there are two such channels 2, 3 having independently driven gear pumps 6, 7 respectively. Heaters 21, 22 are provided.</p> |
