An apparatus for severing a workpiece having a cutting mechanism operable to cut the workpiece substantially along a selected course; drive mechanism operable to drive the cutting mechanism to cut the workpiece; a transport assembly operable to guide the workpiece in movement relative to a predetermined severing position and with respect to the cutting mechanism; and a frame mounting the cutting mechanism and transport assembly in predetermined relation to each other and relative to the severing position so that the drive mechanism is operable to drive the cutting mechanism to cut the workpiece in the severing position.

An apparatus including a computer processor; a first tool device; a first device configured to hold the first tool device; and a second device configured to move the first tool device in x, y, and z directions, when the first tool device is being held by the first device, in response to commands from the computer processor; and a conveyor device having a belt. The first tool device may include a wheel. The first device may be configured with respect to the conveyor device, so that the wheel of the first tool device is configured to be lowered in the z direction into a material located on the belt of the conveyor device, and the first tool device is configured to be moved in the x and y direction, with the wheel simultaneously rotating and rolling through the material on the belt, in response to commands from the computer processor.

An apparatus including a computer processor; a first tool device; a first device configured to hold the first tool device; and a second device configured to move the first tool device in x, y, and z directions, when the first tool device is being held by the first device, in response to commands from the computer processor; and a conveyor device having a belt. The first tool device may include a wheel. The first device may be configured with respect to the conveyor device, so that the wheel of the first tool device is configured to be lowered in the z direction into a material located on the belt of the conveyor device, and the first tool device is configured to be moved in the x and y direction, with the wheel simultaneously rotating and rolling through the material on the belt, in response to commands from the computer processor.

A portable apparatus and method for cutting linear trenches in a concrete ground surface includes two bars extending in parallel spaced relation along the concrete with an elongated track removably fastened and extending orthogonally thereto. A trolley supporting a motor-driven cutting wheel is movably engaged with the track. A depth adjuster alternately lowers and raises the cutting wheel to engage and disengage the concrete while the trolley follows contours of the concrete to cut a kerf of uniform depth. The track is selectively movable to spaced locations along the lengths of the two bars to cut a first plurality of parallel kerfs in a first direction. The apparatus is rotatable about a vertical axis to cut a second plurality of parallel kerfs oriented in a second direction at a predetermined angle, e.g., 90 degrees, to the first direction, to form a simulated tile pattern in the concrete.

A portable apparatus and method for cutting linear trenches in a concrete ground surface includes two bars extending in parallel spaced relation along the concrete with an elongated track removably fastened and extending orthogonally thereto. A trolley supporting a motor-driven cutting wheel is movably engaged with the track. A depth adjuster alternately lowers and raises the cutting wheel to engage and disengage the concrete while the trolley follows contours of the concrete to cut a kerf of uniform depth. The track is selectively movable to spaced locations along the lengths of the two bars to cut a first plurality of parallel kerfs in a first direction. The apparatus is rotatable about a vertical axis to cut a second plurality of parallel kerfs oriented in a second direction at a predetermined angle, e.g., 90 degrees, to the first direction, to form a simulated tile pattern in the concrete.

A walk-behind apparatus and method for cutting non-linear trenches in concrete includes a frame supported by fixed direction wheels at a front end on a fixed axis of rotation, and multi-directional wheels at a rear end to rotate on movable axes of rotation, to permit the frame to rotate about a vertical axis passing through the frame. A handle is engageable by a user walking behind the frame for pushing the apparatus forward and/or for steering. A cutting wheel has a diameter of 5-20 inches and a cutting portion having a width of 0.5-1.5 inches. The cutting rotates on an axis parallel to the fixed axis and which extends notionally through the fixed direction wheels. The cutting wheel is disposed within a protective shroud viewable by the user to permit the user to visually align and guide the cutting wheel along a non-linear path on the ground while steering.

A walk-behind apparatus and method for cutting non-linear trenches in concrete includes a frame supported by fixed direction wheels at a front end on a fixed axis of rotation, and multi-directional wheels at a rear end to rotate on movable axes of rotation, to permit the frame to rotate about a vertical axis passing through the frame. A handle is engageable by a user walking behind the frame for pushing the apparatus forward and/or for steering. A cutting wheel has a diameter of 5-20 inches and a cutting portion having a width of 0.5-1.5 inches. The cutting rotates on an axis parallel to the fixed axis and which extends notionally through the fixed direction wheels. The cutting wheel is disposed within a protective shroud viewable by the user to permit the user to visually align and guide the cutting wheel along a non-linear path on the ground while steering.

There is provided a cutting apparatus with which, even if a plate body to be cut is warped, it is easy to obtain a cut product of the same quality as when a plate body which is not warped is cut. The cutting apparatus is provided on a conveyor for conveying a plate body and cuts the plate body being conveyed by the conveyor. The cutting apparatus includes a cutting blade that cuts the plate body in a direction parallel to a direction of conveying the plate body, and a pressing unit including, at a side position of the cutting blade, a pressing plate provided to be movable between a pressing position where the pressing plate presses the plate body and a retracted position where the pressing plate is retracted from the pressing position. The cutting apparatus cuts the plate body with the cutting blade while pressing the plate body with the pressing plate.

A cutting machine may comprise: a main frame; a first front wheel and a second front wheel, respectively, of the front of the main frame; one rear wheel; a cutting frame having one side fixed near the front of the main frame; a cutting shaft positioned near the other side of the cutting frame; a cutting blade fitted into one side of the cutting shaft to cut a structure; a rotating motor fixed to one side of the cutting frame to drive rotation of the cutting blade; an auxiliary frame hinge-coupled to the cutting frame; a front wheel shaft connected between the main frame and the first front wheel or the second front wheel; and a height-adjusting part, which is connected to the front wheel shaft to adjust the angle of the front wheel shaft so that the height of one side of the main frame can be adjusted.

A cutting machine may comprise: a main frame; a first front wheel and a second front wheel, respectively, of the front of the main frame; one rear wheel; a cutting frame having one side fixed near the front of the main frame; a cutting shaft positioned near the other side of the cutting frame; a cutting blade fitted into one side of the cutting shaft to cut a structure; a rotating motor fixed to one side of the cutting frame to drive rotation of the cutting blade; an auxiliary frame hinge-coupled to the cutting frame; a front wheel shaft connected between the main frame and the first front wheel or the second front wheel; and a height-adjusting part, which is connected to the front wheel shaft to adjust the angle of the front wheel shaft so that the height of one side of the main frame can be adjusted.