| 摘要 |
<p>PULSATING GRAVITY CONVEYOR An improved gravity-type roller conveyor having a control mechanism associated therewith for controlling the rate of movement of articles along the conveyor. The gravity-type roller conveyor of this invention permits a controlled intermittent movement of articles therealong by using an intermittently and cyclically actuated roller system which vertically reciprocates and which coacts with a stationary brake.</p> |
