Drill boom arrangement

Details Drill boom arrangement Drill boom arrangement

1979-04-10

1980-11-11

Foss, J. Franklin

Supports

Machinery support

Movable machine

173 43, F16M 100

Patent

active

042328500

ABSTRACT:
A hydraulic drill boom arrangement for drifting and tunnelling comprises a boom proper (10) that is universally pivotably carried by a support plate (13) and carries a feed beam (40) for a rock drill (41) at its outer end. Two hydraulic cylinders (16, 17) are coupled between the support plate and the boom and located on each side of the boom so that both cylinders are loaded by the weight of the boom, which makes the boom very stable in all positions.

REFERENCES:
patent: 2703222 (1955-03-01), Feucht
patent: 2993685 (1961-07-01), Russell
patent: 3302731 (1967-02-01), Perry
patent: 3304033 (1967-02-01), Thompson
patent: 3322378 (1967-05-01), Thompson
patent: 3493200 (1970-02-01), Huffman
patent: 3759470 (1973-09-01), Kawano
patent: 3973747 (1976-08-01), Jagerstrom
patent: 3993271 (1976-11-01), Kimber

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