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.

A system and method for supporting a patient gas delivery tube includes an elongated support member having first and second distal end and a living hinge biasing arcuate movement between the distal ends. A generally planar, rigid base configured to secures a lower distal end so that the support member extends from a surface of the base. A mount secured to the other distal end is adapted to secure an associated tube. A system for manufacturing a hose support includes cutting of parallel slits in opposing sides of a tube wall, cutting away a portion of one tube end and bending it to form a shelf on which hose clams are placed.

The invention relates to a chop saw for a cutting machine, having an axis of rotation (2) and comprising a circular first sawtooth disk (4) and a first carrier (3) holding the first sawtooth disk (4), wherein the first saw tooth disk (4) has a plurality of sawteeth (5) over the circumference thereof and/or on the flat surfaces thereof, and wherein the first carrier (3) is symmetrical along the axis of rotation (2), and wherein the first carrier (3) has, on a first carrier surface (7), a retaining mandrel (9) for holding the chop saw (1) in a machine chuck of the cutting machine, and wherein the first sawtooth disk (4) is positioned on a second carrier surface (8) of the first carrier (3), which faces away from the first carrier surface (7), and wherein the chop saw (1) has a second sawtooth disk (11), which is arranged parallel to the first sawtooth disk (4). According to the invention, an outside first disk diameter (DA1) of the first sawtooth disk (4) is smaller than an outside second disk diameter (DA2) of the second sawtooth disc (11), and an axial distance (A) is formed between the first sawtooth disk (4) and the second sawtooth disk (11).

A dividing groove forming device includes: a first cutter including a plurality of first rotary blades; a second cutter including a plurality of second rotary blades; a first rotation drive unit for rotationally driving the first cutter; a second rotation drive unit for rotationally driving the second cutter; a cutter support unit; and a phase adjustment unit. The cutter support unit supports the first cutter and the second cutter such that the first and second cutters are radially opposed to each other so that rotation axes of the first and second cutters are parallel to each other. The phase adjustment unit adjusts a phase of at least one of the first cutter and the second cutter such that the first rotary blades and the second rotary blades are opposed to each other in an opposing area in which the first cutter and the second cutter are opposed to each other.

A substrate cutting device includes: a first cutter including a plurality of first rotary blades; a second cutter including a plurality of second rotary blades; a first rotation drive unit for rotationally driving the first cutter; a second rotation drive unit for rotationally driving the second cutter; a cutter support unit; and a phase adjustment unit. The cutter support unit supports the first cutter and the second cutter such that the first and second cutters are radially opposed to each other so that rotation axes thereof are parallel to each other. The phase adjustment unit adjusts a phase of at least one of the first cutter and the second cutter such that each of the second rotary blades is located between two adjacent first rotary blades in an opposing area in which the first cutter and the second cutter are opposed to each other.

The present disclosure provides a side-mounted double-saw synchronous transmission apparatus, which includes a first transmission part and a second transmission part, both of which are disposed on a stationary base and can move back and forth, and is further provided with a side-mounted synchronizing device which is provided with a power shaft, where the first and second transmission parts are both in power transmission coupled with the power shaft. The power shaft can drive the first and second transmission parts to move back and forth alternately through forward and reverse rotation. The side-mounted synchronizing device is disposed on a side of the stationary base to stay away from water mist through extension of the power shaft, and an axial extension direction of the power shaft is perpendicular to a direction in which the first and second transmission parts move back and forth along an extension direction of the stationary base.

A mobile handheld machine saw (10) having a saw assembly (11), which has a saw toolholder (14) for a saw tool (15), in particular a saw blade, and a saw drive motor (12) for driving the saw toolholder (14), and having a guide device (17), which has a guide body (18) having a guide surface (19) for guiding the handheld machine saw (10) along a working direction (AR) on a workpiece (W) and on its upper side (19A) opposite to the guide surface (19), the saw toolholder (14) is movably mounted by means of a saw depth setting bearing (16) between an upper depth setting position (UT) in which the saw toolholder (14) is adjusted closer to the guide surface (19) than in the upper depth setting position (OT).

An apparatus for cutting slabs made of porcelain or like materials includes a support and blocking plane of at least a slab, and at least a cutting group of the slab, arranged superiorly thereof. The cutting group includes rotary tools associated with a carriage mobile along a parallel direction to the support plane; a component for moving the rotary tools independently of one another, in a perpendicular direction to the parallel direction, between two end positions, respectively an active neared position for working on the slab and a non-active distanced position, raised from the slab.

A mobile handheld machine saw (10) having a saw assembly (11), which has a saw toolholder (14) for a saw tool (15), in particular a saw blade, and a saw drive motor (12) for driving the saw toolholder (14), and having a guide device (17), which has a guide body (18) having a guide surface (19) for guiding the handheld machine saw (10) along a working direction (AR) on a workpiece (W) and on its upper side (19A) opposite to the guide surface (19), the saw toolholder (14) is movably mounted by means of a saw depth setting bearing (16) between an upper depth setting position (UT) in which the saw toolholder (14) is adjusted closer to the guide surface (19) than in the upper depth setting position (OT).

The invention relates to a chop saw for a cutting machine, having an axis of rotation (2) and comprising a circular first sawtooth disk (4) and a first carrier (3) holding the first sawtooth disk (4), wherein the first saw tooth disk (4) has a plurality of sawteeth (5) over the circumference thereof and/or on the flat surfaces thereof, and wherein the first carrier (3) is symmetrical along the axis of rotation (2), and wherein the first carrier (3) has, on a first carrier surface (7), a retaining mandrel (9) for holding the chop saw (1) in a machine chuck of the cutting machine, and wherein the first sawtooth disk (4) is positioned on a second carrier surface (8) of the first carrier (3), which faces away from the first carrier surface (7), and wherein the chop saw (1) has a second sawtooth disk (11), which is arranged parallel to the first sawtooth disk (4). According to the invention, an outside first disk diameter (DA1) of the first sawtooth disk (4) is smaller than an outside second disk diameter (DA2) of the second sawtooth disc (11), and an axial distance (A) is formed between the first sawtooth disk (4) and the second sawtooth disk (11).