Guiding device for a saw blade

A saw apparatus comprising:

• a stand having an upper work surface with a slot formed through the work surface, said stand including a rotating device rotatably supported thereby so as to be rotatable relative thereto, said rotating device includes an upper disk that defines at least a portion of the upper work surface and in which said slot is formed;
• a frame supported by said stand and movable toward and away from the upper work surface between a first position and a second position;
• a motor mounted on said frame, said motor including a drive shaft;
• a circular saw blade mounted on said drive shaft said saw blade being positioned such that said saw blade is entirely disposed beneath the upper work surface when said frame is at the first position and at least a portion of said saw blade projects upwardly through said slot and above the upper work surface when said frame is at the second position;
• first and second pivot arms connecting said frame to said stand, said first and second pivot arms being spaced from each other in a direction parallel to a longitudinal axis of said slot, and said first and second pivot arms each having a first end that is connected to said frame by a first pivot joint and a second end that is connected to said stand by a second pivot joint, said first and second pivot arms are oriented substantially parallel to the upper work surface when said frame is at the first position and said first and second pivot arms are oriented substantially perpendicular to the upper work surface when said frame is at the second position;
• and
• an operating rod connected to said frame and projecting from said stand, whereby when said operating rod is actuated, said frame is actuated to move between the first and second positions and said first and second pivot arms move simultaneously between the substantially parallel and substantially perpendicular orientations.