Milling device for cutting up road surfaces

Details Milling device for cutting up road surfaces Milling device for cutting up road surfaces

1990-03-15

1991-05-21

Britts, Ramon S.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Tooth mounted on helical head portion or head with helical...

299 39, F01C 2312, E21C 2510

Patent

active

050169432

ABSTRACT:
A milling device for cutting up road surfaces which includes a roller-type milling body including a rotatably-mounted spiral conveyor, a plurality of rotary cutters carried on the spiral conveyor, the rotary cutters mounted for free rotation about their respective longitudinal axes. A plurality of retaining boxes is provided, each retaining box detachably connected by at least one screw in a respective trapezoidally-shaped positive radial recess in a wall of the spiral conveyor, each retaining box having a bore hole therein for receiving a respective one of the rotary cutters. The retaining boxes each have a trapezoidally-shaped shaft part for being matingly received in the trapezoidal recess with the narrow side of the trapezoidally-shaped shaft facing towards the spiral conveyor.

REFERENCES:
patent: 4119350 (1978-10-01), Sander et al.
patent: 4268089 (1981-05-01), Spence et al.
patent: 4451092 (1984-05-01), Best et al.
patent: 4480873 (1984-11-01), Latham

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