Patent ID: 7469621

Claim:
A table saw comprising: a worktable having a cutting slot; a rotary saw blade extending through the cutting slot; a base connected to the worktable for supporting the worktable; a saw blade holder pivotally disposed on and inside the base and holding the rotary saw blade so that the saw blade is rotated to move up and down through the cutting slot when the saw blade holder is pivoted on the base; and an indicator including a scale member and a connecting member having a first end connected to a non-pivotal point of the saw blade holder, and a second end connected to the scale member; wherein rotating the saw blade holder results in a displacement of the saw blade and a movement of the scale member corresponding to the displacement of the saw blade through actuation of the connecting member when the saw blade holder is rotated; wherein the scale member comprises a wheel pivotally connected to the table saw and provided with an index zone for indicating the movement of the scale member, and a spring having an end connected to the wheel for providing a biasing force to the wheel; and wherein the displacement of the saw blade by rotation of the saw blade holder is a displacement in height relative to the worktable.