Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1975-02-24
1976-11-02
Purser, Ernest R.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
E01C 2312
Patent
active
039893049
ABSTRACT:
A Machine for cutting away road surfaces has a chassis which is preferably self-propelled and which has an intermediate portion situated above the road surface which is to be worked. Beneath this intermediate portion of the chassis is a frame which carries at least one cutter roller which extends transversely with respect to the direction of travel of the chassis. The cutter roller is driven from a gear which is also carried by the frame and which is connected to a drive by way of a Cardanic-type shaft. The frame is suspended from the chassis by only two supports which at their lower ends are connected to the frame in a plane which includes a substantially central longitudinal axis of the chassis to support the frame for free tilting movement about an axis in this plane which extends in the general direction of travel of the chassis, so that by way of this two-point suspension the frame together with the cutting roller can tilt laterally. The frame carries a pair of ground-engaging rollers which are connected to the frame by way of adjusting structures capable of adjusting the frame with respect to the rollers so that in this way it is possible to adjust the angle of transverse tilt of the cutting roller. At least one of the suspensions for the frame can be raised or lowered so that the entire frame together with the cutting roller can be raised away from the ground during travel of the machine.
REFERENCES:
patent: 3572842 (1971-03-01), Mori
patent: 3694033 (1972-09-01), Christensen
patent: 3829161 (1974-08-01), Wirtgen
patent: 3868146 (1975-02-01), Ellis
Pate III William F.
Purser Ernest R.
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