A shear for cutting and simultaneously conveying one or more pairs of rolling wires or bars includes a mobile diverter with at least two channels in each of which a wire or bar slides and at least two pairs of counter-rotating knives, each pair of which acts upon the wire or bar to produce cut segments of wires or bars. The cut segments of wires or bars are then conveyed by a conveying device including at least one pair of mobile elements that may be configured to move independent of each other and to be synchronized with each other and with the mobile diverter for facilitating insertion of each of the cut sections of wires or bars into an output channel of at least two pairs of output channels, each pair of output channels corresponding to one of the mobile diverters.

A shear for cutting and simultaneously conveying one or more pairs of rolling wires or bars includes a mobile diverter with at least two channels in each of which a wire or bar slides and at least two pairs of counter-rotating knives, each pair of which acts upon the wire or bar to produce cut segments of wires or bars. The cut segments of wires or bars are then conveyed by a conveying device including at least one pair of mobile elements that may be configured to move independent of each other and to be synchronized with each other and with the mobile diverter for facilitating insertion of each of the cut sections of wires or bars into an output channel of at least two pairs of output channels, each pair of output channels corresponding to one of the mobile diverters.

A table shear may include a clamp and a shearing mechanism, the shearing mechanism supported by the clamp. The shearing mechanism may include a fixed lower shear blade, a lower shear blade backup plate supporting the fixed lower shear blade, a moveable upper shear blade and a shear compression cylinder. The shear compression cylinder abuts the movable upper shear blade.

A table shear may include a clamp and a shearing mechanism, the shearing mechanism supported by the clamp. The shearing mechanism may include a fixed lower shear blade, a lower shear blade backup plate supporting the fixed lower shear blade, a moveable upper shear blade and a shear compression cylinder. The shear compression cylinder abuts the movable upper shear blade.

An in-line portable, hand held hydraulic cutting tool having a handle assembly and a working head assembly is provided. The handle assembly has a tool frame portion and a neck portion. The working head assembly has a pair of jaw members joined so that they are movable relative to each other and held in place by a locking pin. Each jaw member has a cutting blade secured to or directly formed into the jaw member. A stabilizer can be secured to or directly formed into one or both jaw members. The one or more stabilizers are aligned with a respective cutting blade such that during a cutting operation at least an edge of the stabilizer engages an object being cut to limit rotation of the object during the cutting operation.

The invention discloses a clamping-cutting-grasping multi-functional engineering attachment applying single-degree-of-freedom shape-shifting mechanism, with a symmetrical structure, including a clamping and cutting device, a grasping device, and a separating and deforming device, and further includes two hydraulic cylinders, one base, two separation bases, a driving hydraulic cylinder, hydraulic scissors, a grasping connecting rod, a grasping claw, a separating connecting rod, a base guide rod, a base slider, a separating slider, first connecting rod, second connecting rod and separation slider track groove. The invention uses a double slider mechanism to achieve the relative movement between the grasping device versus the clamping and shearing device, and also realizes a fast conversion from clamping and cutting device to the grasping device, all the work requirements being satisfied under each working state without motion interference.

An oilfield band cutter is useful for removing a band from a tubing string structure as the tubing string structure is being pulled up from the well. The oilfield band cutter includes a base frame with a central hole, an axis extending vertically and centrally through the frame coaxial with the central hole. A tubing follower member is coupled to the base frame and is positioned against an outer surface of the tubing string structure. A cutter is coupled to the tubing follower member, the cutter including an underside having a cutting edge. The cutting edge is positioned to engage against and cut bands on the tubing string structure.

A tube notching device for forming a notch in a tubular workpiece. The tube notching device includes a support frame, a vise, a positioning assembly, a cutting assembly, and a cutting mechanism. The vise is mounted to the support frame and secures the tubular workpiece in a desired support position. The positioning assembly is pivotally mounted to the support frame. The cutting assembly is pivotally mounted to the positioning assembly. The cutting mechanism is mounted to the cutting assembly and configured to form a notch in the tubular workpiece. The positioning assembly and the cutting assembly cooperate to position the cutting mechanism in a desired notching position relative to the tubular workpiece supported in the vise in the desired support position. The cutting mechanism operates to form a desired notch in the tubular workpiece when the cutting mechanism is in the desired notching position.

A tube notching device for forming a notch in a tubular workpiece. The tube notching device includes a support frame, a vise, a positioning assembly, a cutting assembly, and a cutting mechanism. The vise is mounted to the support frame and secures the tubular workpiece in a desired support position. The positioning assembly is pivotally mounted to the support frame. The cutting assembly is pivotally mounted to the positioning assembly. The cutting mechanism is mounted to the cutting assembly and configured to form a notch in the tubular workpiece. The positioning assembly and the cutting assembly cooperate to position the cutting mechanism in a desired notching position relative to the tubular workpiece supported in the vise in the desired support position. The cutting mechanism operates to form a desired notch in the tubular workpiece when the cutting mechanism is in the desired notching position.

A workpiece support device includes a shaft rotatable about a shaft rotation axis of the shaft, a first support, a first reciprocating mechanism, and a first connecting rod having one end and another end. The shaft extends along a longitudinal direction of a workpiece. The first support includes a first support roller that is rotatable about a first roller rotation axis orthogonal to the shaft rotation axis and that is configured to contact the workpiece to support the workpiece. The first reciprocating mechanism has one end connected to the first support and is configured to reciprocate in a first expansion-contraction axis direction. The one end of the first connecting rod is rotatably connected to the first support. The another end of the first connecting rod is connected to the shaft such that the another end of the first connecting rod is rotatable together with the shaft.