Patent ID: 7992480

Claim:
A table saw comprising: a supporting base including a chamber formed therein, and including a curved channel formed therein and communicating with said chamber of said supporting base, a cradle pivotally attached to said supporting base, and including a bevel sector gear having a rack provided on said bevel sector gear of said cradle, an arbor bracket pivotally attached to said cradle with a pivot rod for allowing said arbor bracket to be pivoted relative to said cradle, and including a bevel sector gear having a rack provided on said bevel sector gear of said arbor bracket, a height shaft rotatably attached to said cradle and extended out through said curved channel of said supporting base, and including a worm engaged with said rack of said bevel sector gear of said arbor bracket for pivoting said bevel sector gear and said arbor bracket relative to said cradle and said supporting base, a saw blade rotatably attached to said arbor bracket with an axle, a motor attached to said arbor bracket and coupled to said axle of said saw blade for rotating said saw blade, a tilt shaft rotatably attached to said supporting base and including a worm engaged with said rack of said bevel sector gear of said cradle for pivoting said bevel sector gear of said cradle and said arbor bracket relative to said supporting base and for adjusting said saw blade relative to said supporting base to selected angular positions, a follower slidably engaged in said curved channel of said supporting base moveable along said curved channel of said supporting base with said height shaft, and a signal generating device attached to said follower for detecting a relative position between said height shaft and said supporting base and for detecting a bevel angle of said arbor bracket and said cradle and said saw blade relative to said supporting base.