Coupling means in a drilling machine

Details Coupling means in a drilling machine Coupling means in a drilling machine

1974-12-31

1976-09-21

Leppink, James A.

Tool driving or impacting

Impacting devices

With means for rotating tool

175173, B25D 900

Patent

active

039813681

ABSTRACT:
A drilling machine may include extension equipment comprising (a) drill rods -- connected end-to-end -- for transmission of impact force and (b) a system of tubular members -- likewise connected end-to-end -- surrounding said rods, for transmission of rotary force. Such extension equipment may be coupled to the machine per se by means of a tubular adapter threadably connected, at one of its ends, to the tubular members system and at its opposite end connected to the machine through polygonal coupling means.

REFERENCES:
patent: 1203860 (1916-11-01), Dunbar
patent: 1869892 (1932-08-01), Grove et al.
patent: 3416615 (1968-12-01), Grospas

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