Abstract: A welding head assembly for use with a torch. The torch has an electrical contact and a gas passage for operatively supporting an electrode with a working end of the electrode at a first location. The welding head assembly has a body, a gas flow path, a gas outlet, an electrical flow path, and an electrode. The body extends between a first end and a second end where the first end is releasably coupled to the torch. The gas flow path and electrical flow path extend between the first and the second end. The electrode is located at the second end remote from the first location.

Abstract: A computer-based method of creating displays of a number of different geometric shapes that are displayed on the computer display. Display limitations that retain predetermined orientations of at least two of the geometric shapes are defined, and the user is allowed to manipulate the display of the geometric shapes, but subject to the defined display limitations.