Patent ID: 8973566
Filing Date: 2015-03-10
Classification: B28D,Y10T

Abstract:
1. A method of cutting a stone using a reciprocating frame gang saw having flat blades with cutting tips, comprising: using a cutting unit other than a frame gang saw to form in a lengthwise direction of the stone a plurality of linear grooves in an exposed uneven quarried surface of the stone, each groove varying in depth along the length of the groove because of the uneven quarried surface of the stone; inserting respective blades of the reciprocating frame gang saw into the grooves in the stone prior to the stone being cut by the frame gang saw; and reciprocating the blades to cut the stone into a plurality of slabs; and wherein the blades are coupled to an arm to perform a pendulum motion, and wherein a mean depth of the grooves is greater than a height difference of the blade in the pendulum motion so that the blade may perform the cutting operation without deviating from the respective groove during the pendulum motion.