A money discriminating apparatus comprising a bill transporting path defined between a pair of spaced, but opposed wall surfaces. A coin transporting path is defined by a groove formed in at least one of the wall surfaces. The groove has a width slightly larger than a diameter of a largest one of coins...http://www.google.es/patents/US4850468?utm_source=gb-gplus-sharePatente US4850468 - Money discriminating apparatus
