The present invention relates to methods and apparatus for detection of fire states in the presence of welding activities. In some examples, the welding detection system may algorithmically calculate a risk of a fire state developing. In some embodiments, the welding fire detection and prevention system may communicate warning states to users, supervisors, equipment and/or building monitoring systems.

An attachment for a welding torch, comprising: a torch; a body configured to be removable secured to the torch and has a first opening; and an arm, wherein the arm is sized to fit within the first opening and extending from the body towards a location of the torch nozzle and touch a workpiece to define a center point for a cutout.

An attachment for a welding torch, comprising: a torch; a body configured to be removable secured to the torch and has a first opening; and an arm, wherein the arm is sized to fit within the first opening and extending from the body towards a location of the torch nozzle and touch a workpiece to define a center point for a cutout.

A heat exchanger brazing fixture including a baseplate including a first surface and a second surface located opposite the first surface and a first post including a first end and a second end located opposite the first end. The first post is operably associated with the first surface of the baseplate at the first end. The A heat exchanger brazing fixture further including a top plate operably connected to the first post and separated from the first surface of the baseplate by a selected distance. The top plate being configured to move in a first direction along the first post when a heat exchanger resting upon the first surface of the baseplate expands during a brazing process.

A method of monitoring a heating operation on a component by a flame torch, including the steps of producing a flame with the flame torch, rotating the component with respect to the flame so that a circular weld is created on the component, and providing a first sensor that is operatively engaged with the component so that the first sensor monitors rotation or non-rotation of the components.

The present invention relates to methods and apparatus for detection of fire states in the presence of welding activities. In some examples, the welding detection system may algorithmically calculate a risk of a fire state developing. In some embodiments, the welding fire detection and prevention system may communicate warning states to users, supervisors, equipment and/or building monitoring systems.

A MIG torch head shield for protection of the eyes from arc flash during the welding process. The MIG torch head shield is further useful for allowing increased safety and ability to lighten a percentage of shade setting inside of helmets. The MIG torch head shield is also useful for providing a shaded or tinted vision of the arc welding when a helmet is not worn by a welder.

A MIG torch head shield for protection of the eyes from arc flash during the welding process. The MIG torch head shield is further useful for allowing increased safety and ability to lighten a percentage of shade setting inside of helmets. The MIG torch head shield is also useful for providing a shaded or tinted vision of the arc welding when a helmet is not worn by a welder.

Provided is a torch including a body having a first portion and a second portion angled relative to the first portion, a control knob at a top of the second portion for adjusting a flow of fuel through the torch, a trigger at a top of the first portion that is movable from an off position to an on position to at actuate an igniter, and a burn tube extending from an end of the second portion away from the first and second portions.

An automatic and manual welding apparatus includes an operation changeover switch which is provided to be capable of switching a manual input mode for switching off power supplied to an infeed motor to and from an automatic input mode for applying power supplied to the infeed motor, so as to switch the rotation of the infeed motor automatically and manually. A control unit controls the infeed motor such that the power supplied to the forward and backward transfer motor is switched off when the input of the operation changeover switch is in a manual input mode and the power to the infeed motor is applied when the input of the operation changeover switch is in an automatic input mode.