Cutter unit assemblies for excavating machines and to excavating

Details Cutter unit assemblies for excavating machines and to excavating Cutter unit assemblies for excavating machines and to excavating

1979-11-30

1981-11-24

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

299 33, 299 75, E21D 908

Patent

active

043020542

ABSTRACT:
The cutting machine body comprises a non-rotary housing mounted on a slideway and a boom carrying rotary housing rotatably supported by annular support means arranged adjacent to a radially outer margin of the body, drive means being provided on the non-rotary housing for rotating the boom carrying rotary housing.

REFERENCES:
patent: 3404920 (1968-10-01), Tabor
patent: 3545811 (1970-12-01), Montacie
patent: 3784257 (1974-01-01), Lauber et al.
patent: 4136910 (1979-01-01), Plummer

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