Underground excavating machine having independently movable half

Details Underground excavating machine having independently movable half Underground excavating machine having independently movable half

1974-08-21

1976-12-07

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

61 45D, 180 8C, 238 10A, 299 64, 299 86, E21D 910

Patent

active

039959074

ABSTRACT:
The machine includes two half-frames vertically arranged side by side, with two parallel vertical shafts respectively supported by the two half-frames. A separate turret is pivotally supported around each of the shafts, each turret having a cutting head which can rotate around a horizontal axis and which is equipped with tools for excavating. The two half-frames are slidably movable horizontally in relation to one another, with a control member connected between the half-frames for controlling the relative movement, the two half-frames being selectively positionable on the gallery floor by said relative movement, one half-frame being movable while the other half-frame remains fixed in position.

REFERENCES:
patent: 2452632 (1948-11-01), Cameron
patent: 3106825 (1963-10-01), Barall et al.
patent: 3512597 (1970-05-01), Baron
patent: 3663054 (1972-05-01), Dubois

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