Laser pipe layout device
AssigneeArmco Inc.
InventorRoger F. Andrew
Life of this patent
Estimating the term…
Abstract
A method and apparatus for scribing a severance line around the circumference of a pipe employing a protractor with a rotative arm and alignment guide pin; and a laser beam producing a vertical line beam. The protractor is mounted on the pipe to be cut so that the protractor is parallel with respect to the longitudinal center line of the length of the pipe. Once the protractor is parallel and set to the desired angle, the laser beam is energized to project a line upon the pipe which is in alignment with the alignment guide pins. The projected line is chalked on the pipe and the pipe is cut in any conventional manner.
Claims9
A method of cutting an elongated structrual member comprising:
- mounting a generally planar protractor having a center reference means positioned perpendicular to said planar protractor upon said structural member wherein a longitudinal line of the length of the structural member is parallel with said planar protractor, positioning an alignment guide means upon the protractor at the desired angle to which said structural member is to be cut;
- energizing a vertical beam laser;
- positioning said laser until the laser beam is in alignment with said alignment means mounted upon said protractor and said center reference means;
- marking the structural member along said laser beam;
- and cutting said structural member along said marking.
Dependencies are inferred from the claim text.