Кировоградский Национальный Технический Университет
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A quill assembly comprises a screw feeder of a quill with a spindle located therein, as well as a prism and a two-sided wedge through which transfer of advance effort is performed from a nut of a screw mechanism to the quill. The direction of the slope of working faces of the prism and wedge coincides with the direction of quill advance.