Search International and National Patent Collections

1. (WO2018178934) TOUCH RETRACT WELDING TORCH

Pub. No.:    WO/2018/178934    International Application No.:    PCT/IB2018/052202
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 30 01:59:59 CEST 2018
IPC: B23K 9/12
B23K 9/133
B23K 9/167
Applicants: MACGREGOR WELDING SYSTEMS LIMITED
Inventors: AHERNE, Mark
SZPIECH, Mariusz
Title: TOUCH RETRACT WELDING TORCH
Abstract:
This invention relates to an apparatus for use in welding, in particular in Tungsten Inert Gas (TIG) welding. The invention provides a touch retract welding torch (10) comprising: an electrode (27); a nozzle (28) surrounding the electrode (27); a mechanical retraction mechanism (21) comprising a gripper (13) for clamping the electrode and arranged in operation to engage the gripper and retract the electrode (27) away from a weld site by a predetermined distance; activating means (24) arranged in operation to trigger said retraction mechanism while providing the basis by which an arc maybe drawn from an initial contact point and maintained consistently over a significant number of operational cycles.