Device for removing the earth generated by tunneling

Details Device for removing the earth generated by tunneling Device for removing the earth generated by tunneling

1979-01-10

1980-10-07

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Rotary cutter head with advance direction coincident or...

175 62, 175 88, 198594, 198518, E21C 3520, E21D 912

Patent

active

042264774

ABSTRACT:
A device for removing the earth generated while tunneling to install conduit, pipe or the like. The earth removed from the tunnel is conveyed to the surface as it is generated. The apparatus includes a first auger-conveyor disposed at the side of the tunneling machine having a tray for catching the loose dirt from the tunneling operation as the tunneling advances, and a plurality of inlet apertures along the outer wall of the conveyor to ingest the loose dirt generated. A second auger-conveyor consumes the discharge of the first conveyor translating the loose dirt to the surface.

REFERENCES:
patent: 1220527 (1917-03-01), Martin
patent: 1326480 (1919-12-01), Dana
patent: 2165666 (1939-07-01), Tilly
patent: 3506310 (1970-04-01), Gruere
patent: 4059163 (1977-11-01), Stedman

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