This is an above view of a system in which tin cans arrive via conveyor (1) to a "feeding star" ("подающая звезда" in Russian; No. 5) and are placed firmly in slot 4. (source in Russian)
What does one call this "feeding star" in English?
I'm actually translating a text about a pharmaceutical filling-and-capping line, in which there is a "feeding star" and a "stoppering star". My text comes with no drawings, but I googled and found out that these "stars" are basically star-like cogwheels that take something from a moving conveyor system and position it precisely for further use. In my text, this "feeding star" probably passes drug-filled vials to the "stoppering star" which is part of the vacuum-operated automatic stoppering unit.