A pipe cutting machine comprises: rotary blades in a pair, with a plane at a right angle to a center line of a pipe, 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 overlap each other in an x-axis direction; a straightforward driving mechanism that drives the rotary blades straightforward in opposite directions of a y-axis direction so as to make the rotary blades pass each other on the x axis and in the vicinity of the x axis; and power direction conversion mechanisms that move the rotary blades outwardly to get farther from the y axis for avoiding interference between the blade edges when the rotary blades pass each other on the x axis and in the vicinity of the x axis.

A pipe cutting machine comprises: rotary blades in a pair, with a plane at a right angle to a center line of a pipe, 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 overlap each other in an x-axis direction; a straightforward driving mechanism that drives the rotary blades straightforward in opposite directions of a y-axis direction so as to make the rotary blades pass each other on the x axis and in the vicinity of the x axis; and power direction conversion mechanisms that move the rotary blades outwardly to get farther from the y axis for avoiding interference between the blade edges when the rotary blades pass each other on the x axis and in the vicinity of the x axis.

A shear press (100) for scrap is described, comprising a machine body (105) defining a compaction channel (125) adapted to contain the scrap and guide it in a sliding manner along a predetermined advance direction (A), compaction means (155) coupled to the machine body (105) and adapted to compact the scrap in the compaction channel (125), and cutting means (180) coupled to the machine body (105) and positioned at one end of the compaction channel (125) to separate the compacted scrap into portions, wherein the machine body (105) comprises at least two mutually separable blocks, of which a first block (105A) to which the compaction means (155) and the cutting means (180) are coupled, and a second block (105B) defining a portion of the compaction channel (125) adapted to serve as a loading hopper for the scrap to be treated.

A shear press (100) for scrap is described, comprising a machine body (105) defining a compaction channel (125) adapted to contain the scrap and guide it in a sliding manner along a predetermined advance direction (A), compaction means (155) coupled to the machine body (105) and adapted to compact the scrap in the compaction channel (125), and cutting means (180) coupled to the machine body (105) and positioned at one end of the compaction channel (125) to separate the compacted scrap into portions, wherein the machine body (105) comprises at least two mutually separable blocks, of which a first block (105A) to which the compaction means (155) and the cutting means (180) are coupled, and a second block (105B) defining a portion of the compaction channel (125) adapted to serve as a loading hopper for the scrap to be treated.

A cutting device for cutting a number of structural steels in series is disclosed. The cutting device may include a cutting mechanism coupled to an actuating mechanism, both mounted on a support frame. The cutting mechanism may include a stationary cutting member having a plurality of openings and a movable cutting member mounted in side-by-side abutment with the stationary cutting member. Each lateral opening on the stationary cutting member is aligned with the corresponding opening on the movable cutting member, thereby forming a single extended opening, which is capable of receiving a workpiece therein. The movable cutting member is movable relative to the stationary cutting member from a first position to a second position. As the movable cutting member moves, it moves the aligned openings of the individual cutting members out of alignment one after another thereby shearing the workpieces in the process.

A cutting device for cutting a number of structural steels in series is disclosed. The cutting device may include a cutting mechanism coupled to an actuating mechanism, both mounted on a support frame. The cutting mechanism may include a stationary cutting member having a plurality of openings and a movable cutting member mounted in side-by-side abutment with the stationary cutting member. Each lateral opening on the stationary cutting member is aligned with the corresponding opening on the movable cutting member, thereby forming a single extended opening, which is capable of receiving a workpiece therein. The movable cutting member is movable relative to the stationary cutting member from a first position to a second position. As the movable cutting member moves, it moves the aligned openings of the individual cutting members out of alignment one after another thereby shearing the workpieces in the process.

A shear press (100) for scrap comprising a machine body (105) defining a compaction channel (125) adapted to contain the scrap and guide it in a sliding manner along a predetermined advance direction (A), compaction means (155) and cutting means (180); wherein the compaction means (155) comprise: two mutually opposed jaws (170) articulated to the machine body (105) according to axes of rotation (B) parallel to each other and orthogonal to the advance direction (A) of the scrap, and actuating members (175) adapted to rotate said jaws (170) around the respective axes of rotation (B), in opposite directions, between an open configuration and a closed configuration, thereby reducing the space between the two jaws (170); wherein each jaw (170) comprises an operating surface (400) adapted to laterally de-limit the compaction channel (125) when the jaw (170) is in open configuration; wherein the cross section of said operating surface (400), carried out with respect to a section plane orthogonal to the axis of rotation (B), comprises an end (405) proximal to the axis of rotation (B), an end (410) distal from the axis of rotation (B) and at least one first rectilinear stretch (415) that is parallel to the advance direction (A) of the scrap when the jaw (170) is in the closed configuration, and wherein the extreme point (420) of said first rectilinear stretch (415) with respect to the axis of rotation (B) of the jaw (170) does not coincide with the distal end (410) of the cross section of the operating surface (400) but is aligned to the latter along a direction of alignment (C) which forms, with said first rectilinear stretch (415), an angle () having its vertex facing the inner part of the compaction channel (125).

A continuous strip of T-Nuts formed on a common strip of metal. Each T-Nut of the strip of T-Nuts is integrally connected to the next adjacent T-Nut by carry tabs. The carry tabs can be frangible themselves or contain a frangible portion. Each T-Nut includes a cylindrical bore therein and a threaded interior. A mechanism feeds and severs the endmost T-Nut in endwise fashion. The mechanism to feed and sever the endmost T-Nut includes a cutting blade positioned vertically below the frangible portion of the carry tab. A shearing ram having a guide positioned axially in line with the cylindrical bore in the endmost T-Nut is adapted to move vertically from an upper to a lower position to engage the cutting blade with the frangible portion and sever the endmost T-Nut.

A continuous strip of T-Nuts formed on a common strip of metal. Each T-Nut of the strip of T-Nuts is integrally connected to the next adjacent T-Nut by carry tabs. The carry tabs can be frangible themselves or contain a frangible portion. Each T-Nut includes a cylindrical bore therein and a threaded interior. A mechanism feeds and severs the endmost T-Nut in endwise fashion. The mechanism to feed and sever the endmost T-Nut includes a cutting blade positioned vertically below the frangible portion of the carry tab. A shearing ram having a guide positioned axially in line with the cylindrical bore in the endmost T-Nut is adapted to move vertically from an upper to a lower position to engage the cutting blade with the frangible portion and sever the endmost T-Nut.

Devices for cutting an aerial obstacle are provided. Such devices may comprise a mounting frame; an anchor point for attachment to a hoist; a cutter mounted to the mounting frame, the cutter having opposing cutting blades for engaging and cutting the obstacle when positioned therebetween; a power supply mounted to the mounting frame, the power supply providing power to the cutter for actuating the cutting blades; and a guiding frame extending from the mounting frame, the guiding frame providing an inner guiding surface for directing the obstacle to a position between the opposing cutting blades of the cutter. Methods of using such devices for cutting aerial obstacles, such as cables, beams and/or branches, are also provided herein.