A coin recognizing selector (3) is followed by a buffer coin box (5) serving as a temporary store for newly inserted coins. The buffer has a stepping motor-indexable, bottomless and topless, circular loading magazine with P+2 radial cells bounded by radial walls, within a stationary cartridge. The cartridge...http://www.google.com.tw/patents/US4836825?utm_source=gb-gplus-share專利 US4836825 - Automatic dispenser and coin changer