An example pipe cutting tool includes a plurality of actuators and a plurality of cutters. Each of the plurality of cutters is connected to at least one separate actuator of the plurality of actuators. The at least one separate actuator is configured to move the cutter between a pre-deployed and deployed position. The deployed position is beyond the pre-deployed position. The plurality of cutters may include a first and second cutter, with the at least one separate actuator connected to the second cutter moving based, at least in part, on one or more cutting conditions. An example method of cutting a pipe includes extending a first cutter to contact the pipe, cutting at least a portion of the pipe using the first cutter, detecting a cutting condition, extending a second cutter based, at least in part, on the cutting condition, and resuming the cutting using the second cutter.

An example pipe cutting tool includes a plurality of actuators and a plurality of cutters. Each of the plurality of cutters is connected to at least one separate actuator of the plurality of actuators. The at least one separate actuator is configured to move the cutter between a pre-deployed and deployed position. The deployed position is beyond the pre-deployed position. The plurality of cutters may include a first and second cutter, with the at least one separate actuator connected to the second cutter moving based, at least in part, on one or more cutting conditions. An example method of cutting a pipe includes extending a first cutter to contact the pipe, cutting at least a portion of the pipe using the first cutter, detecting a cutting condition, extending a second cutter based, at least in part, on the cutting condition, and resuming the cutting using the second cutter.

A machine (1) for machining slab materials (3) is described, comprising: a working plane (2) configured to support a slab material (3) to be machined; a first tool-holder electrospindle (11) associated to a respective supporting body (33), the first electrospindle (11) and the respective supporting body (33) being supported above said working plane (2) by a respective supporting equipment (12) perpendicularly with respect to the working plane (2) and configured to move the first electrospindle (11) and the respective supporting body (33) about a rotation axis (Z) perpendicular to the working plane (2); a moving apparatus (14) configured to move the equipment (12) in parallel to the working plane (2) and along directions (X, Y) perpendicular to one another; at least a second tool-holder electrospindle (45), rotationally and translationally integral with the first electrospindle (11), supported above the working plane (2) in parallel to the first electrospindle (11) by a respective supporting arm (47) slidably supported by the supporting body (33) of the first electrospindle (11); a first actuator device (55) active to move the supporting arm (47) and the second electrospindle (45) supported by the same towards and away from the first electrospindle (11) in parallel to the working plane (2) and along a direction substantially perpendicular to a cutting plane extending perpendicularly to the working plane (2); and a second actuator device (63) associated to the supporting arm (47) of the second electrospindle (45) and configured to move the second electrospindle (45) along a direction perpendicular to the working plane (2) independently of the first electrospindle (11).

A machine (1) for machining slab materials (3) is described, comprising: a working plane (2) configured to support a slab material (3) to be machined; a first tool-holder electrospindle (11) associated to a respective supporting body (33), the first electrospindle (11) and the respective supporting body (33) being supported above said working plane (2) by a respective supporting equipment (12) perpendicularly with respect to the working plane (2) and configured to move the first electrospindle (11) and the respective supporting body (33) about a rotation axis (Z) perpendicular to the working plane (2); a moving apparatus (14) configured to move the equipment (12) in parallel to the working plane (2) and along directions (X, Y) perpendicular to one another; at least a second tool-holder electrospindle (45), rotationally and translationally integral with the first electrospindle (11), supported above the working plane (2) in parallel to the first electrospindle (11) by a respective supporting arm (47) slidably supported by the supporting body (33) of the first electrospindle (11); a first actuator device (55) active to move the supporting arm (47) and the second electrospindle (45) supported by the same towards and away from the first electrospindle (11) in parallel to the working plane (2) and along a direction substantially perpendicular to a cutting plane extending perpendicularly to the working plane (2); and a second actuator device (63) associated to the supporting arm (47) of the second electrospindle (45) and configured to move the second electrospindle (45) along a direction perpendicular to the working plane (2) independently of the first electrospindle (11).

An apparatus for cutting a window covering comprises a saw for cutting the window blind. A clamp assembly moves the window covering relative to the saw. A controller moves the clamp assembly to automatically position an end of the window covering relative to the saw. The saw is moved into engagement with the window covering to cut the window covering. A dust collection system comprises a shroud substantially surrounds the bottom of the saw blade where the shroud is connected to a vortex dust collector.

A twin-head bar cutting device includes a first cutting head and a first bar holding device as well as a second cutting head and a second bar holding device placed on a common base. The base includes a first placement surface on which the first cutting head is placed, a second placement surface on which the second cutting head is placed, and a holding device placement surface formed higher than the first placement surface and the second placement surface between the first placement surface and the second placement surface and on which the first bar holding device and the second bar holding device are placed, and the first cutting head and the second cutting head are arranged symmetrically about a vertical plane passing through a center in a width direction of the base.

A twin-head bar cutting device includes a first cutting head and a first bar holding device as well as a second cutting head and a second bar holding device placed on a common base. The base includes a first placement surface on which the first cutting head is placed, a second placement surface on which the second cutting head is placed, and a holding device placement surface formed higher than the first placement surface and the second placement surface between the first placement surface and the second placement surface and on which the first bar holding device and the second bar holding device are placed, and the first cutting head and the second cutting head are arranged symmetrically about a vertical plane passing through a center in a width direction of the base.

The embodiments described herein relate generally to improved fit duct liner insulation for curvilinear ducts in HVAC, exhaust, or other similar gas flow systems. A duct liner insulation for a curvilinear duct may include an insulation board having a first major surface and a second major surface. The duct liner insulation further includes a plurality of rows of kerfs in the first major surface of the insulation board configured to allow the insulation board to flex in a direction of the width of the insulation board such that insulation board is foldable into a curvilinear configuration. Each of the kerfs has a v-shaped cross section with sidewalls extending from a kerf base portion at or near the second major surface of the insulation board to the first major surface of the insulation board. The sidewalls extending at an angle from 10 degrees to 20 degrees relative to each other.

Process accuracy and throughput in a system for processing timber and lumber with a circular gang saw can be improved by measuring a sawing force and a guide friction force near an end of one or more saw arbors and incorporating the force measurement into a process control system to adjust the workpiece feed speed (or other process parameters) to achieve better results.

To provide a pipe cutting machine capable of cutting a pipe even of a large diameter efficiently in a short period of time, and achieving excellent economical efficiency and excellent durability with a simple, compact, and light-weight configuration.

A pipe cutting machine cuts a pipe 10 at a right angle to the center line of the pipe 10. The pipe cutting machine comprises: rotary blades 20, 20 in a pair, with a plane at a right angle to the center line of the pipe 10 to be cut defined as an x-y plane and the center of the pipe 10 defined as a coordinate origin, the rotary blades being arranged to face each other on both sides of a y axis in such a manner that blade edges of the rotary blades 20, 20 overlap each other in the direction of an x axis; a straightforward driving mechanism 50 that drives the rotary blades 20, 20 in a pair straightforward in opposite directions of a y-axis direction so as to make the rotary blades 20, 20 in a pair pass each other on the x axis and in the vicinity of the x axis; and a power direction conversion mechanism 46 and a power direction conversion mechanism 47 that change part of straightforward driving force in the y-axis direction to force in the x-axis direction and move the rotary blades 20, 20 in a pair outwardly to get farther from the y axis for avoiding interference between the blade edges when the rotary blades 20, 20 in a pair pass each other on the x axis and in the vicinity of the x axis.