Adjusting device for a table saw

An adjusting device for a table saw that has a tabletop, comprising:

• a pivot rod adapted to be longitudinally mounted under the tabletop of the table saw;
• a panel adapted to extend downward from the tabletop and having a curved groove defined in the panel, the curved groove including a topside and a series of teeth formed on the topside of the curved groove;
• a rotatable seat pivotally mounted on the pivot rod, the rotatable seat moved as a circling motion relative to the pivot rod, the rotatable seat having an axle laterally mounted within the rotatable seat;
• a pivotal seat rotatably mounted on the axle and moved as a circling motion relative to the axle, the pivotal seat having an actuated rod laterally and pivotally mounted within the pivotal seat, the actuated rod having a threaded hole defined therein and corresponding to the curved groove in the panel, the pivotal seat adapted to be connected to a motor of the table saw;
• a threaded rod extending through the curved groove and the rotatable seat, the threaded rod screwed through the threaded hole in the actuated rod to drive the pivotal seat when the threaded rod is rotated;
• a knob centrally and rotatably penetrated by the threaded rod, the knob having a gear centrally extending therefrom and engaged to the series of teeth on the topside of the curved groove in the panel to drive the rotatable seat and the pivotal seat moved as a circling motion relative to the pivot rod;
• an adjusting wheel attached to a free end of the threaded rod for driving the threaded rod to drive the pivotal seat moved as a circling motion relative to the axle;
• and
• a spring compressively sleeved on the threaded rod and situated between the rotatable seat and the panel to overcome an interval between the threaded rod and the threaded hole in the actuated rod.