Importance

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Abstract

The specification discloses a saw having a circular saw blade wherein a motor for driving the saw blade and a bearing for the saw blade spindle are mounted on a mounting frame which is positioned below a work table and can be raised and lowered in a pivoting movement about a horizontal pivoting axis parallel to the spindle axis. The mounting frame is suspended in a tiltable cradle suspended in a circular work support which is flush with the top of the work table and is rotatably mounted in a circular opening therein. When the mounting frame is raised the saw blade will project through a slot in the support. The mounting frame is operated by a thin bar projecting through the slot in the support and carrying a handle above the work table. The bar is integral with a riving knife. It is rotatably mounted about the saw blade axis, and it is connected to the cradle by a linkage formed by an articulated rod and the mounting frame. Thereby the operating bar will maintain the same vertical position relative to the saw blade axis when lifted. In fact, it will move along a path equi-distant to the path of the saw blade axis, and the length of the movement will be the same as that of the saw blade axis.

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First Claim