| 摘要 |
<p>The equipment has a storage hopper above an inlet funnel and a loose valve spindle movable up and down in the funnel neck, with a sealing portion working against a seat above the neck. A vibratory drive (38) is provided for the spindle (10), and this can incorporate a support (33) coupled to the latter. The support can have a section (34) on which the lower end of the valve spindle, or a round body secured to it, rests. The body (12) can be spherical or conical, and of resilient material, and it can be arranged to allow lifting clear from the vibratory drive. The support can oscillate in a horizontal plane.</p> |
