Automatic excavating machine and method of operating the same

Details Automatic excavating machine and method of operating the same Automatic excavating machine and method of operating the same

1975-06-19

1977-02-22

Purser, Ernest R.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

E21C 4100

Patent

active

040089215

ABSTRACT:
Mineralogical measurements are performed at a plurality of locations along the face of an excavation to determine the shape of a mineral interface along such face. An interface-shape program is set up in a programmable control arrangement operative for causing an excavating machine to excavate in accordance with the program during at least one working trip. Only after the program has been set up in the control arrangement is the excavating machine caused to perform at least one working trip under the automatic control of the control arrangement. When the excavation is such that the actual interface shape is not well-defined, continuous and smooth, the interface-shape program set up in the programmable control arrangement is made to correspond to an interface which is well-defined, continuous and smooth by comparison with the actual interface, to make possible automatic working of an excavation not capable of being worked by automatic excavating machines of the type which automatically detect the physical interface during a working trip and excavate in dependence upon such automatica detection.

REFERENCES:
patent: 3531159 (1970-09-01), Schmidt
B425,345, Jan. 1975, Poundstone, 299, 1.

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