Articulator system

An articulator comprising:

• a vertical frame having two identical spaced parallel vertical columns adjustable in length;
• a first horizontal elongated member extending between and connected to the upper ends of the columns, said first member having a first horizontal extension disposed at right angles to the direction of elongation of the first member;
• a horizontal bar supported on the first member, said bar extending between and interconnecting the upper ends of the columns, said horizontal bar being rotatable about its horizontal axis,
• a second horizontal elongated member extending between the lower ends of the columns and supporting them, said second member having a second horizontal extension disposed at right angles to the direction of elongation of the second member, the first and second horizontal extensions of the first and second members being parallel and vertically aligned;
• a first horizontal upper elongated metallic plate extending over the first horizontal extension of the first member, said first plate having a first coupling at one end and having a first magnet disposed thereon;
• a first housing containing a first ball bearing and first attached shaft that is connected to said bar, the first housing being disposed over the first extension, said first shaft being connected to the first coupling of the first plate as a locking device so that the first plate is pivotable about a horizontal axis which is disposed at right angles to the axis of the bar and the first plate cannot move along the axis of the bar;
• a second horizontal lower elongated metallic plate extending outward parallel to the second horizontal extension of the second member and disposed below the first plate, said second plate having a second magnet disposed thereon and having a second coupling at one end;
• a second housing containing a second ball bearing and second attached shaft that is connected to said second horizontal member, the second housing being disposed over the second extension, said second shaft being connected to the second coupling of said second plate as a locking device so that that the second plate is pivotable about a horizontal axis which is disposed at right angles to the axis of the bar and the second plate cannot move along the axis of the bar.