| 摘要 |
An arc welding torch control system providing remotely selectable control over welding wire feed rate and welding current without discontinuing use of the welding device. A torch mounted three position switch provides for selection of variable wire feed rate with constant preselected current control, variable current control with a preselected constant wire feed rate, or simultaneous variation of both parameters over a given preselected range. Control of the selection and parameter range control is remotely presented to the welding operator by use of torch mounted controls or by remote controls co-located in the immediate location of with the welding torch so that the operator can manipulate the rate of the selected parameter by foot or otherwise without the need to discontinue the welding operation.
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