Drift advancing or mining machine

Details Drift advancing or mining machine Drift advancing or mining machine

1985-08-29

1987-05-12

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter shiftable horizontally

299 75, 299 42, E21C 2720

Patent

active

046644490

ABSTRACT:
A drift advancing or a partial-cut mining machine (1) comprises a cutting arm (11) being swivellable in a height direction around an axis (10). The front end of the cutting arm (11) is equipped with guides (26) transversely extending relative to the longitudinal axis (38) of the cutting arm (11) and having shiftably supported thereon a carrier (27) for the cutting heads (28, 29). The cutting heads (28, 29) are rotatably supported on the carrier (27) for rotation around vertical axes (46). The distance (a) between the axes of rotation (46) is, as measured in a transverse direction relative to the longitudinal axis (38) of the cutting arm, at most equal to half the width (b) of the drift face.

REFERENCES:
patent: 3006624 (1961-10-01), Duxey
patent: 3064958 (1962-11-01), Osgood
patent: 3314722 (1967-04-01), Webster
patent: 3418023 (1968-12-01), Webster
patent: 3550961 (1970-12-01), Hughes
patent: 3929378 (1975-12-01), Frenyo et al.
patent: 4037875 (1977-07-01), Justice
patent: 4119346 (1978-10-01), Amoroso
patent: 4131317 (1978-12-01), Jamison et al.
"Der Moderne Tunnel--Und Stollenvortrieb" of Berger, Verlag Wilhelm Ernst und Sohn, Berlin, pp. 114 to 122 and 128, 129, 1970.

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