Known heating burners for producing a welded joint between components of quartz glass include a burner head in which at least one burner nozzle is formed, a burner-head cooling system for the temperature control of the burner head and a supply line connected to the burner nozzle for a fuel gas. Starting from this, to modify a heating burner in such a way that impurities in the weld seam between quartz-glass components to be connected are largely avoided, it is suggested that the burner head should include a base body of silver or of a silver-based alloy.

Known heating burners for producing a welded joint between components of quartz glass include a burner head in which at least one burner nozzle is formed, a burner-head cooling system for the temperature control of the burner head and a supply line connected to the burner nozzle for a fuel gas. Starting from this, to modify a heating burner in such a way that impurities in the weld seam between quartz-glass components to be connected are largely avoided, it is suggested that the burner head should include a base body of silver or of a silver-based alloy.

Known heating burners for producing a welded joint between components of quartz glass include a burner head in which at least one burner nozzle is formed, a burner-head cooling system for the temperature control of the burner head and a supply line connected to the burner nozzle for a fuel gas. Starting from this, to modify a heating burner in such a way that impurities in the weld seam between quartz-glass components to be connected are largely avoided, it is suggested that the burner head should include a base body of silver or of a silver-based alloy.

A rotatable and removable connection for use in a welding torch assembly that allows for the gooseneck to be removeable and rotatable by the use of an interference member that allows the welding torch assembly to enter a locked, unlocked and partially lock state by moving the interface member about the central axis of the welding torch assembly, the partially lock state allows for rotation of the gooseneck without allowing for removal of the gooseneck, and the electrical connection provides electrical conduction via a conduction member that is independent form the locking features of the welding torch assembly.

A rotatable and removable connection for use in a welding torch assembly that allows for the gooseneck to be removeable and rotatable by the use of an interference member that allows the welding torch assembly to enter a locked, unlocked and partially lock state by moving the interface member about the central axis of the welding torch assembly, the partially lock state allows for rotation of the gooseneck without allowing for removal of the gooseneck, and the electrical connection provides electrical conduction via a conduction member that is independent form the locking features of the welding torch assembly.

The present invention relates to a burning apparatus for railway repair, defining an axis (P) and comprising: an air compressor assembly (2) including an inlet opening (20) and an outlet opening (21), and a combustion assembly (3) connected to the outlet opening (21) of the air compressor assembly (2), wherein the air compressor assembly (2) and the combustion assembly (3) are axially disposed along the axis (P), and wherein the air compressor assembly (2) compresses air into the combustion assembly (3).

The present invention relates to a burning apparatus for railway repair, defining an axis (P) and comprising: an air compressor assembly (2) including an inlet opening (20) and an outlet opening (21), and a combustion assembly (3) connected to the outlet opening (21) of the air compressor assembly (2), wherein the air compressor assembly (2) and the combustion assembly (3) are axially disposed along the axis (P), and wherein the air compressor assembly (2) compresses air into the combustion assembly (3).

An example welding torch includes: a contact tip configured to conduct welding-type current to a wire electrode; a conductor configured to transfer welding-type current from a welding-type power source to the contact tip; a connector configured to couple the conductor to a wire feeder to receive the welding-type current, the connector comprising an inlet configured to receive the wire electrode from a wire feeder; and a wire liner configured to deliver the wire electrode from the wire feeder to the contact tip via the inlet of the connector, the wire liner being electrically insulated from the conductor along a length of the wire liner and being electrically insulated from the connector.

An example welding torch includes: a contact tip configured to conduct welding-type current to a wire electrode; a conductor configured to transfer welding-type current from a welding-type power source to the contact tip; a connector configured to couple the conductor to a wire feeder to receive the welding-type current, the connector comprising an inlet configured to receive the wire electrode from a wire feeder; and a wire liner configured to deliver the wire electrode from the wire feeder to the contact tip via the inlet of the connector, the wire liner being electrically insulated from the conductor along a length of the wire liner and being electrically insulated from the connector.

An igniter device comprising a holder for a piezo electric ignition source, the holder comprising a first end and a second end, wherein the first end of the inner holder is coupled to a piezo electric ignition source including an actuator, and the second end of the inner holder has a surface configured to receive a tip of an oxy fuel torch; and an attachment means to releasably attach the igniter device to a support member; wherein, the actuator is moveable from a relaxed state to a compressed state to thereby activate the piezo electric ignition source to produce a spark for igniting the oxy fuel torch to produce a flame when the igniter device is attached to the support member.