Geneva drive - GIFs

[Toolmaker51]

Lots of Geneva centered mechanisms in packaging machinery.
Machines are built around specific containers. They [Geneva] dispense stacked cups into fillers, place and burp lids, date stamp, and rotate for labeling. Usually cups are unstacked by 2 or 3 very long pitched helical grooved bars. The sealing lip has a job before food or other product is introduced.
Everything is fine until that container manufacturer stops; but the molds re-sell for use elsewhere.
Like features on cable TV "How It's Made" all the toolmaking somehow never enters the picture. Yogurt just plops out of a tub. No one asks where the tub or rotary measuring valve comes from, and that's why machining is an unsung art.