Pipe laydown and pickup machine

Details Pipe laydown and pickup machine Pipe laydown and pickup machine

1976-01-21

1978-03-28

Hoffman, Drayton E.

Railways

Droppings catcher

104112, 175 85, E21B 1914

Patent

active

040810879

ABSTRACT:
A machine for laying down or picking up pipe sections, casing sections and the like during a well drilling operation and includes a draw works associated with a catwalk alongside of a pipe rack and oriented in normal relationship to a drill rig with cable arrangements extending from the draw works to a sheave supporting post assembly anchored in the rathole pipe in the drill rig floor. Carriages are mounted on the cable assembly for picking up a pipe section or laying down a pipe section in relation to the catwalk and conveying the pipe section to and from a position adjacent the sheave supporting post assembly in the rathole pipe thereby enabling the pipe section to be picked up by the structure in the drill rig in order to assemble the pipe section with sections already in the drill rig and to facilitate removal of the pipe sections when breaking down or disassembling a pipe string.

REFERENCES:
patent: 532837 (1895-01-01), Tefft
patent: 1076599 (1913-10-01), Miller
patent: 2194125 (1940-03-01), Rinehart
patent: 2201813 (1940-05-01), Doud
patent: 3361080 (1968-01-01), Born
patent: 3532229 (1970-10-01), Scaggs
patent: 3713547 (1973-01-01), Beck
patent: 3774780 (1973-11-01), Buffington
patent: 3825129 (1974-07-01), Beck

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