Patent ID: 6531683
Filing Date: 2003-03-11
Classification: B23K,F16M

Abstract:
A variable elevation and freely rotation boom for a welding device comprising:a) a rotary turntable; b) a plate for attachment to the rotary turntable; c) a plurality of support members attached to said plate; d) a hole in each of said support members, said holes in said members aligned with each other; e) a first plate member rotatably affixed (at one point) to each of said support members at the same point for rotation relative to said support member; f) said first plate members having a plurality of holes therein to circumferentially match the holes in said support members to secure the first plate members at a fixed angle with respect to the horizontal pin member inserted in said holes in said support members and one of said holes in each of said support members; g) a second plate member affixed to said first plate member and rotatable therewith; h) a boom attached to said second plate member and for supporting a conduit attached thereto.