Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
Patent
1985-09-23
1987-02-03
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Automatic control; signaling or indicating
Of hard material disintegrating machine
299 37, 299 38, 299 69, E21C 2710
Patent
active
046405518
ABSTRACT:
Hard rock trenching apparatus comprised of a pair of spaced apart diamond toothed cutting blades mounted for rotation in combination with a hydraulically operated breakout tool having a chisel face supported behind the cutting blades in a plane located intervening within the spacing between the cutting blades. The tool is continuously operable for removing the center core remaining between the blades while an adjustable linkage enables positioning the chisel of the tool at or above the cutting plane of the blades.
REFERENCES:
patent: 1858360 (1932-05-01), Cruse
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patent: 3550961 (1970-12-01), Hughes
patent: 3827507 (1974-08-01), Lance
patent: 3922017 (1975-11-01), Cobb
patent: 4069605 (1978-01-01), Satterwhite
patent: 4126083 (1978-11-01), Haak et al.
patent: 4230372 (1980-10-01), Marten
patent: 4542940 (1985-09-01), Marten
Novosad Stephen J.
Odar Thomas J.
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