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US 4,054,071 AGranted
Flying saw with movable work shifter
AssigneeAetna-Standard Engineering Company
InventorJerzy F. Patejak
Life of this patent
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AssigneeAetna-Standard Engineering Company
InventorJerzy F. Patejak
Estimating the term…
An improved flying saw of simplified and more economical construction is disclosed which operates smoothly with reduced vibration and which performs in an improved manner at higher operating speeds. The machine has a main crank arm with a rotary saw blade at one end and an adjustable counterweight at the opposite end, a stabilizing crank arm with a counterweight, and a connecting rod causing the arms to rotate in unison. Both arms telescope to permit simultaneous adjustments of arm radius while screw jacks adjust the height of the crank axis relative to the work. The work is supported on a wheel having a special sliding-block eccentric which moves the wheel in a vertical direction to deflect the work into the path of the rotary saw blade. A quick-drop support bracket permits lowering of the wheel and its eccentric away from the path of the work in an emergency situation so that flow from the mill need not be interrupted.
In an apparatus for severing successive longitudinal sections from continuously moving elongated work having a cutting tool movable in a circular path and means for guiding the work in a normal path spaced a short distance from such circular path, the improvement which comprises an eccentric unit having a cam wheel mounted for rotation on a light-weight vertically movable frame and having a pair of parallel eccentric shafts extending through said frame at opposite sides of said cam wheel, a supporting frame having bearing means mounting said shafts for rotation about parallel axes, a pair of blocks having openings to receive said shafts, each shaft having an eccentric portion mounted for rotation in its associated block to cause oscillation of the block in response to rotation of the shaft, means mounting said blocks for horizontal sliding movement on said movable frame, and means mounting said movable frame for vertical movement, whereby the sliding blocks cause the frame to reciprocate vertically in response to rotation of said eccentric shafts, and cause the cam wheel to deflect the work from its normal path into the path of the tool to permit severing of said sections.
Dependencies are inferred from the claim text.