Link tilting mechanism for well rigs

Details Link tilting mechanism for well rigs Link tilting mechanism for well rigs

1983-05-02

1984-12-25

Leppink, James A.

Boring or penetrating the earth

With orienting or racking means for unconnected tools or...

166 775, 414 22, E21B 1906

Patent

active

044897944

ABSTRACT:
Well apparatus including elevator links connected to a hook or other unit suspended in a derrick and hanging therefrom at opposite sides of the well axis to support an elevator or the like, with power actuated means provided for swinging the lower ends of the links laterally outwardly relative to the upper ends of the links and essentially about those upper ends, to shift the suspended elevator to a side of the well axis.

REFERENCES:
patent: 1997565 (1935-04-01), Arbuckle
patent: 2313243 (1943-03-01), Johnson
patent: 2324173 (1943-07-01), Porter
patent: 2613102 (1952-10-01), Roberson
patent: 3063509 (1962-11-01), Guier
patent: 3368699 (1968-02-01), Scaggs
patent: 3464507 (1969-09-01), Alexander et al.
patent: 3766991 (1973-10-01), Brown
patent: 3857450 (1974-12-01), Guier
patent: 3915244 (1975-10-01), Brown
patent: 4326745 (1982-04-01), Guier

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