Drill mast support assembly

Details Drill mast support assembly Drill mast support assembly

1975-03-26

1976-06-29

Purser, Ernest R.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Fluid pressure actuated

52116, 173 26, 173 44, E04H 1234, E21C 1102

Patent

active

039656284

ABSTRACT:
A drill mast support assembly having a drill mast pivotable between a drilling and a non-drilling position and including elongated rigid brace means for stabilizing the mast in the drilling position. The brace means are connected to the mast by support means which provide for a compact assembly when the mast in the non-drilling position and permit the brace means to be automatically positioned as the drill mast is moved to the drilling position. Lock means are further provided for preventing relative movement between the mast and the brace means when the mast is in the drilling position.

REFERENCES:
patent: 2849212 (1958-08-01), Robbins
patent: 2904310 (1959-09-01), Leonard
patent: 3012619 (1961-12-01), Farque
patent: 3252527 (1966-05-01), Alexander et al.
patent: 3778940 (1973-12-01), Blecken
patent: 3805463 (1974-04-01), Lang et al.
patent: 3815690 (1974-06-01), Cooper

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