Adjustable bucket for an earth boring machine

Details Adjustable bucket for an earth boring machine Adjustable bucket for an earth boring machine

1976-10-18

1977-08-23

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

With mine roof-supporting means

299 56, 299 67, E21D 908

Patent

active

040436004

ABSTRACT:
An earth boring machine is disclosed that produces a bore in a general axial direction relative to the longitudinal axis of the machine. A rotary head is mounted on the body of the earth boring machine and cutter means on the rotary head contact the face of the bore and loosen material at the face of the bore. The loosened material falls to the bottom of the bore. Buckets positioned on the rotary head are located at a first radial distance from the longitudinal axis of the machine to pick up the loose material at the bottom of the bore. As the rotary head rotates, the buckets are carrried above the bottom of the bore and the buckets are moved to a second and shorter radial distance from the longitudinal axis of the machine to prevent the buckets from interfering with elements of the machine near the roof of the bore.

REFERENCES:
patent: 3309142 (1967-03-01), Winberg
patent: 3467389 (1969-09-01), Bolotin et al.

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