Material or article handling – Well pipe or rod racking mechanism – With slope change
Patent
1982-03-02
1984-10-02
Paperner, Leslie J.
Material or article handling
Well pipe or rod racking mechanism
With slope change
187 12, 187 26, 414639, 414648, 414748, E21B 1914
Patent
active
044745206
ABSTRACT:
An apparatus for transferring pipe between pipe racks and the drilling rig floor including a stationary trough located below and extending towards the drilling rig and a movable, inclined trough aligned with the stationary trough having one end supported on the drilling floor and the other end powered to move between a lower position for transferring pipe to and from the stationary trough and an upper position for transferring pipe to and from the drilling floor. Two pair of racking legs extending between the pipe racks and the fixed trough are provided. Each leg has a cradling lug which moves up and down the leg powered by a hydraulic cylinder, thereby lifting the pipe along the leg. Further, each leg is able to pivot in two directions about a pivoting structure. The pipe when moving in the troughs is held at one end by a shovel member which is engageable by the buggy traveling along the stationary trough and is also engageable by the carriage in the inclined trough. Two pair of wishbone shaped dumping arms are positioned beneath the fixed trough at a location adjacent the racking arms. These arms powered by fluid actuated cylinders pivot about a point on the stationary trough so that their outer end extends through openings in the stationary trough thereby engaging a pipe and moving the pipe out of the stationary trough to the racking arms. An operator's station is pivotally mounted on top of the stationary trough.
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Buckner James E.
McGuire Earl C.
Ingram Corporation
Paperner Leslie J.
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