Purified water dispensing machine

A water dispensing machine, comprising,

• a first elongate fill tube member,
• a second elongate fill tube member,
• a first piston member slideably mounted interiorly of said first fill tube member and reciprocable therein between a first and second position,
• a second piston member slideably mounted interiorly of said second fill tube member and reciprocable therein between a first and second position,
• first inlet means for admitting water into a first end of said first fill tube member to displace said first piston member from its first position to its second position,
• second inlet means for admitting water into a first end of said second fill tube member to displace said second piston member from its first position to its second position,
• first outlet means for discharging previously admitted water from a second end of said first fill tube member responsive to the displacement of said first piston member,
• second outlet means for discharging previously admitted water from a second end of said second fill tube member responsive to the displacement of said second piston member,
• a unidirectional indexing means for sequentially and alternatingly activating said first and second inlet and outlet means,
• said indexing means comprising a four-way valve member for sequentially directing water to the first inlet means of said first fill tube member, to the second inlet means of said second fill tube member, to the outlet means of first fill tube member and to the outlet means of said second fill tube member,
• a coin accepting means for mechanically activating said indexing means attendant each acceptance by said machine of a preselected value of coins,
• a rotatably mounted plate member,
• said plate member having a plurality of four equidistantly spaced pin members projecting therefrom,
• an elongate flexible rod member adapted to abuttingly engage said pin members in sequence responsive to sequential acceptance by said machine of coins, and to rotate said plate member an equal angular amount each rotation,
• and said four-way valve member conjointly rotatable with said plate member,
• whereby a predetermined volume of water is dispensed from said first and second fill tube members responsive to each acceptance of coins by said machine.