Automatic dispenser and coin changer

A process for using a dispenser comprising:

• a case a single slot within said case for inserting coins, a chute to guide the coins extending from said slot to an entry to a selector, a buffer coin box, N coin stores within said case, a coin collection box and a coin return tray within said case beneath said N coin stores, the buffer box and each coin store having a bottomless and topless loading magazine, shaped as a circular crown with a vertical axis, comprising P+2 radial cells bounded by a radial, vertical walls, said circular crown being arranged in a stationary cartridge having at least a bottom and a circular side wall, the buffer and each coin store having a stepping motor to rotatively drive said loading magazine with each cartridge, the N stores being placed coaxially one below another beneath the buffer, the bottom of each cartridge being provided with a radial opening beneath said cells, said opening extending over a circular width corresponding to two cells of said loading magazine, said openings in all said cartridges being all vertically aligned, means for stopping each loading magazine motor to always position its associated magazine with two consecutive cells located in front of said opening, said selector having an outlet located in front of a first column of cells of the buffer box and of the N stores enabling a coin to drop from said selector into said coin return tray, through said openings, a second, consecutive column of cells of the buffer box and stores enabling a coin to drop from said buffer into said coin box through said openings, each cartridge being equipped with a bolt at said opening, a control motor operatively coupled to each said bolt for enabling the bolt to assume a first position completely blocking said opening, a second position blocking a portion of said opening corresponding to said first column of cells and a third position blocking the other portion of said opening corresponding to said second column of cells, and each cartridge comprising means for detecting the position of the loading magazine and the bolt, said process comprising the steps of depositing one by one all the coins inserted by the user and recognized and accepted by the selector, regardless of their category, in consecutive cells of the buffer box, by successive, stepped rotation of the loading magazine in the cartridge of the buffer box, and delivering the service or product, returning the due change strictly from the different stores, and emptying the buffer box into the different stores, with each store being assigned to handle a single category of coins.