Adjustable rollers for positioning pipe
AssigneeMidcon Pipeline Equipment Co.
InventorJ. C. Birdwell
Life of this patent
Estimating the term…
Abstract
Pipe handling apparatus for pipe laying barges, sometime called lay barges, wherein pipe is lifted from an incoming pipe conveyor to a transverse rack, from one rack position to another, and from the rack to the pipe line-up conveyors, by a series of pivotal lifting means which lift, move, and deposit the pipe without impact or shock, whereby the pipe and any concrete or other coating on the pipe is not damaged. In addition to the novel pipe transferring means, the invention presents a novel universally adjustable line-up conveyor apparatus.
Claims15
Pipe line-up coneyor apparatus, comprising a body having plural conveyor rollers supported thereby for supporting a length of pipe and for conveying the length of pipe longitudinally, plural generally vertically pivotally disposed and vertically extendable and retractable support means for supporting said body at longitudinally and laterally spaced points thereof and for independently raising and lowering said spaced points of said body, and plural drive means for independently moving the ends of said body transversely in either direction, whereby a length of pipe supported on said conveyor means may be selectively moved to any longitudinal position for welding to a pipeline.
Dependencies are inferred from the claim text.