A device for cutting a plate or panel of porous construction material includes a movement structure that moves the plate or panel and includes at least one conveyor, and which is able to move in a direction (X). The device also includes a wire to cut the plate or panel and a structure for passing the wire in a direction (Y) perpendicular to the direction (X) of travel of the plate or panel. The device for cutting allows a cut to be made that greatly limits the waste and dust generated.

A device for cutting a length of pipe includes a clamp portion for clamping around a length of pipe and a bow moveable with respect to the clamp portion that retains a loop of diamond embedded wire. The device further includes a feed for driving the bow with respect to the clamp portion and a detector for detecting bending of the wire and a control responsive to the detector for controlling feed rates. The device is made of modular parts and has synchronizing arms for clamping around a length of pipe. In one embodiment, the wheels are retained in enclosures with slots through which the cutting wire passes.

A system, a method and a collapsible and/or folding apparatus may use a wire loop to cut an object. The apparatus may have a wire loop connected to pulleys on a carriage attached to a frame. The carriage may move relative to the frame to direct the wire loop through the object. The apparatus may have arms on the carriage that may be folded and/or a kicker frame pivotably connected to the frame that may be retracted to reduce the overall size of the apparatus.

A cutting apparatus and the method of operating same is provided. The apparatus includes a feed tower assembly configured to be attached to an object and a frame base plate movably attached thereto. The frame base plate has a pivotable arm assembly and an arm wheel thereon which accept a cutting member. A visual tension indicator is operably connected to the frame base plate and the arm assembly and configured to indicate an amount of tension applied to the cutting member.

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have connected thereto, a source of power that is an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire ay be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones ma include temperature zones, cartridge heaters, cooling air, or hated air, or a source of ultrasonic, microwave or radiative energy.

The invention discloses a device (1) for releasing glasses (2) from the bodies (3) of vehicles where the device (1) comprises a frame (4), at least one suction pad (5), one guide pulley (6) fitted with two guide grooves (7) for guiding a cutting wire (8), or two guide pulleys (6) with a common central line, and two winding pulleys (9). The winding pulleys are fitted with winding grooves (10) for winding the cutting wire (8) and a spacing element or a spacing pulley (11) keeping the cutting wire (8) at a safe distance from the suction pad (5). During releasing the glass (2) the cutting angle (α) of the cutting wire (8) does not exceed the value of 90°. Each end of the cutting wire (8) is wound onto the winding pulleys (9) due to the guide grooves (7) wherein a safe distance from the suction pad (5) is ensured to eliminate their damage.

A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have connected thereto, a source of power that is an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire ay be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones ma include temperature zones, cartridge heaters, cooling air, or hated air, or a source of ultrasonic, microwave or radiative energy.

A method and apparatus for replacement of damages display shield (typically glass) covering a display screen on a device, typically a mobile phone. Mobile phones have an electronic display protected by a glass shield. Between the glass and the display is often a plastic polarizing or other intermediary sheet. Removal of a damage glass can be accomplished by cutting thru the polarizer with a moving wire or blade. This separates the glass from the sensitive display and allows replacement of the glass without damaging the more expensive display.

A method and apparatus for replacement of damages display shield (typically glass) covering a display screen on a device, typically a mobile phone. Mobile phones have an electronic display protected by a glass shield. Between the glass and the display is often a plastic polarizing or other intermediary sheet. Removal of a damage glass can be accomplished by cutting thru the polarizer with a moving wire or blade. This separates the glass from the sensitive display and allows replacement of the glass without damaging the more expensive display.

The invention discloses a device (1) for releasing glasses (2) from the bodies (3) of vehicles where the device (1) comprises a frame (4), at least one suction pad (5), one guide pulley (6) fitted with two guide grooves (7) for guiding a cutting wire (8), or two guide pulleys (6) with a common central line, and two winding pulleys (9). The winding pulleys are fitted with winding grooves (10) for winding the cutting wire (8) and a spacing element or a spacing pulley (11) keeping the cutting wire (8) at a safe distance from the suction pad (5). During releasing the glass (2) the cutting angle () of the cutting wire (8) does not exceed the value of 90. Each end of the cutting wire (8) is wound onto the winding pulleys (9) due to the guide grooves (7) wherein a safe distance from the suction pad (5) is ensured to eliminate their damage.