Slices are cut from workpieces using a wire saw having a wire array tensioned in a plane between two wire guide rollers each supported between fixed and floating bearings and comprising a chamber and a shell enclosing a core and having guide grooves for wires. During a cut-off operation, a workpiece is fed through the wire array perpendicular to a workpiece axis and the wire array plane. The workpiece is fed through the wire array while simultaneously: changing shell lengths by adjusting chamber temperatures in dependence on a depth of cut and a first correction profile; and moving the workpiece along the workpiece axis in accordance with a second correction profile. The correction profiles are opposed to a shape deviation.

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 wire saw 1 according to the invention for an endless saw wire 3 has a housing 6, a wire drive 9, and a wire store 7. The wire drive 9 is for pulling the saw wire 3 in a circulating direction 8. The wire store 7 has a first package 31 of deflection rollers 32 and a second package 33 of deflection rollers 32. The second package 33 is mounted so as to be displaceable with respect to the first package 31 along a direction 14 in order to increase a length of the saw wire 3 stored on the wire store 7. A feed device 38 exerts a feed force on the second package 31 in the direction 14. The wire store 7 is arranged downstream of the wire drive 9 in the circulating direction 8. The wire saw pulls the saw wire 3 in the circulating direction 8, resulting in a tensile stress on the saw wire 3 running into the wire saw 1. By contrast, the saw wire 3 running out of the wire saw 1 is largely without tension. The relative arrangement of wire drive 9 and wire store 7 allows tensioning of the running-out saw wire 3 by the wire store 7.

A pivotable wire deflector 19 for a saw wire 3 of a wire saw 1 has a deflection roller 32, a pivot joint 60 and a clamping and spreading mechanism. The defection roller 32 has a running groove 45 for guiding the saw wire 3 of the wire saw 1. The pivot joint 60 has a rotary bearing block with a cylindrical receptacle 65, and a tube 63 which is arranged so as to be rotatable in the cylindrical receptacle, wherein the deflection roller 57 is attached to the one of rotary bearing block 62 or tube 63. A clamp 70 is fastened to the rotary bearing block 62 and arranged so as to enclose the tube 63. A lever 68 can be moved manually between a first position and a second position.

An overhead sawing device comprising a central frame, a cutting cable, a driving unit, a first and a second arms configured to deflect the cutting cable to a lower level, at least two rotatable arms configured to receive the cutting cable from the higher level and to guide said cable during a cut. The device further includes a telescopic cable tensioning element. A method of operating the device is also provided, which method permits the execution of a continuous cut without repositioning the device, even in confined spaces.

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 roller module is used for driving a sawing wire to slice an ingot into multiple wafers, and includes two spaced apart main rollers and an auxiliary roller. Each main roller has a rotating axis and a diameter. An imaginary horizontal plane is defined to pass through the rotating axes of the main rollers. Two imaginary vertical planes are defined to be perpendicular to the imaginary horizontal plane and respectively pass through the rotating axes of the main rollers. The auxiliary roller is disposed above the imaginary horizontal plane and between the imaginary vertical planes. An uppermost side of the auxiliary roller is not lower than an uppermost side of each main roller. The auxiliary roller has a diameter smaller than one half of that of each main roller.

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.

The present invention relates to a gravity based structure 5 with a topside 2 on at least one hollow concrete platform leg 1 with a platform leg wall and a circular cross section. The at least one platform leg, includes an upper leg portion (4) cut off from a lower leg portion 3. The lower leg portion 3 has an upper sloped cut surface 10 inclined at an angle in the range of 1°-10° off a horizontal axis. The upper leg portion 4 has an upper leg sloped cut surface inclined at the same angle as the lower leg sloped cut surface 10 of the lower leg portion 3 whereby the angles are complementary, the sloped cut surfaces forming an inner and an outer obtuse cone with a common vertical longitudinal axis. Furthermore, the invention relates to method of forming a conical cut through a concrete platform leg of a GBS.

Systems for cooling and directing a cutting wire. The systems include a water cooling box which permits cooling a cutting cable without any loss of cleaning/cooling fluid or contamination of the driving elements of the system. The systems also include a plurality of cutting wire directing elements which permit multiple cutting directions without derailing of the wire out of the guiding pulleys.