A cutting apparatus for cutting corner pieces formed of stone or other materials for use as building faces or for cutting flat pieces is disclosed herein. The cutting apparatus includes a frame with a first and a second conveyor operatively attached to the frame. The first and the second conveyors are configured to carry a workpiece from a first end of the frame to the second end of the frame. The first conveyor is disposed at an angle of about 45 degrees to a ground surface supporting the cutting apparatus. The second conveyor is disposed at an angle of about 45 degrees to the ground surface supporting the cutting apparatus, wherein the second conveyor is positioned perpendicularly to the first conveyor so as to form a V-shaped channel therewith. The cutting apparatus further includes a first cutting blade operatively attached to the frame and positioned generally parallel to the first conveyor and a second cutting blade operatively attached to the frame and positioned generally parallel to the second conveyor.

Cutting bricks includes rotating a turntable having jigs. Bearings on clamp arms of the jigs are urged against a cam surface at first and second sides of the turntable to open the clamp arms to permit loading and unloading of unclamped brick. Bricks are loaded into the jigs on the turntable from both sides of the turntable by positioning the bricks in jigs with opened clamp arms. One clamp arm can clamp the brick against a side plate portion below a saw blade height and one can clamp above saw blade height. The turntable continues to rotate to release the arms from the cam surface to cause clamp arms to close. At least two brick saws positioned adjacent the turntable cut clamped bricks loaded into jigs on the turntable. Cut bricks are unloaded at the sides of the turntable when the clamp arms open.

A controller of a cutting apparatus includes: a storage section configured to preliminarily store as a threshold an arbitrary value based on a load current value of a motor detected when a cutting blade is rotated at a predetermined rotational speed while supplying a predetermined quantity of cutting water in a state in which a cutting water supply nozzle is positioned in an appropriate position; and a judgment section configured to judge normality or abnormality according to the result of comparison between a load current value detected when the cutting blade is rotated at the predetermined rotational speed while supplying the predetermined quantity of cutting water and the threshold stored in the storage section.

Stabilized cutting tool assemblies. A cutting tool assembly for use with a reference surface includes a tool holder having a rotational axis. The tool holder is arranged for attachment to a drive source arranged to rotate the tool holder and move the tool holder relative to a reference surface. The cutting tool assembly includes a rotatable cutting tool coupled to the tool holder. The cutting tool includes a cutting surface and has a first portion and a second portion. The first portion is disposed adjacent the tool holder. The cutting tool assembly includes a stabilizer coupled to the cutting tool adjacent the second portion. The stabilizer has a bearing surface. The bearing surface is positioned on the second portion to abut the reference surface and to stabilize the cutting tool when the drive source moves the tool holder and the cutting tool to a position adjacent the reference surface.

A cutting apparatus for cutting corner pieces formed of stone or other materials for use as building faces or for cutting flat pieces is disclosed herein. The cutting apparatus includes a frame with a first and a second conveyor operatively attached to the frame. The first and the second conveyors are configured to carry a workpiece from a first end of the frame to the second end of the frame. The first conveyor is disposed at an angle of about 45 degrees to a ground surface supporting the cutting apparatus. The second conveyor is disposed at an angle of about 45 degrees to the ground surface supporting the cutting apparatus, wherein the second conveyor is positioned perpendicularly to the first conveyor so as to form a V-shaped channel therewith. The cutting apparatus further includes a first cutting blade operatively attached to the frame and positioned generally parallel to the first conveyor and a second cutting blade operatively attached to the frame and positioned generally parallel to the second conveyor.