| 摘要 |
<p>The equipment consits of a step-wise motorised assembly or telescopic support, solidly fixed or welded at one side to the base, while the free element opposite has an arm, on the end of which is a transverse beam. This contains, coaxially inside it, a moveable bracket guided by columns parallel to the longitudinal shaft and moved by a ball-bearing spindle operated by a second stepwise DC motor. Suspended from bracket hangs a second elbowed arm, on the end of which is situated a ladle for smelting fluid, connected by a set of planetary transmissions.</p> |
