Drift advancing or exploiting machine

Details Drift advancing or exploiting machine Drift advancing or exploiting machine

1986-01-27

1987-08-25

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter shiftable horizontally

299 67, 299 76, E21C 2506

Patent

active

046888551

ABSTRACT:
A mine drift advancing machine includes a cutting arm pivoted at its rear end to the machine chassis for movement about a horizontal axis and at its front end supporting a carrier which is pivoted to the arm for movement about a vertical axis. At least two horizontally spaced apart rocking levers are pivoted at their rear ends to the carrier for swinging about vertical axes and a lever drive is provided for swinging the levers simultaneously in the same directions. The forward end of each lever carrie at least one cutting tool which is rotatable about a generally vertical axis.

REFERENCES:
patent: 2659585 (1953-11-01), McCallum
patent: 2695164 (1954-11-01), Arentzen
patent: 3269776 (1966-08-01), Munger
patent: 3302974 (1967-02-01), Hlinsky
patent: 3314722 (1967-04-01), Webster
patent: 3341254 (1967-09-01), Arndt
patent: 3420577 (1969-01-01), Pentith
patent: 3469885 (1969-09-01), Marberg

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