| 摘要 |
An apparatus for advancing articles along a path of travel and for selectively positioning the articles at various positions along the path comprises a vertical guideway for guiding a stack of articles and a set of claws disposed around the guideway releasably engage with the articles to successively position them in an initial starting position. A collapsible linkage extends into engagement with the article while in the initial position and the linkage collapses to effect advancement of the article to a working position. The linkage is alternately extended and collapsed by a reciprocatory motor. During the advancement of each article from the initial position to the working position, the article engages with the preceding article and pushes same to another position along the path of travel. A lifting device successively lifts the articles from the other position and raises them along another vertical guideway. A set of pawls disposed around this guideway releasably engage with the lifted articles to hold them in a final terminal position. |
