One type is a portable coin dispenser, invented by Jacques L. Galef, often worn on a belt, used by conductors and other professions for manual fare collection.
It dispenses a single coin when a lever is depressed.
Another type is a fixed coin dispenser that dispenses several coins at once, such as four quarters or five nickels, for making change at a venue for coin-operated devices, such as a penny arcade, pinball parlour, or Automat.
These are typically found at teller windows in banks and sometimes in retail establishments.
This type of change maker may also operate electromechanically under control of a cash register, automatically giving correct change for a customer's purchase.