Rock cutting tools

Details Rock cutting tools Rock cutting tools

1978-05-25

1981-11-03

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175365, 299 10, 299 86, E21D 910, E21C 3518

Patent

active

042980801

ABSTRACT:
A compact and relatively lightweight rock cutting tool comprises a pair of disc cutters disposed in parallel, the disc cutters having circumferential cutting edges; a support member for the cutters disposed radially inwardly of the cutting edges thereof and on which each cutter is borne for rotation; and a mounting pedestal to which the member is attached between planes defined by the respective cutting edges of the cutters, preferably mid-way between the planes. Preferably each cutter is borne for rotation independently of the other and the cutting edges of the disc cutters are separated by 80 to 100 mm. The overall width of a tool with a separation of 90 mm between the cutting edges and with cutters of 330 mm diameter is only 180 mm which is about half that of an equivalent tool of conventional construction. With the tool of the invention therefore either more tools may be fitted to a given cutting head or more room made available at the cutting head for access to the tools and for the removal of cut rock.

REFERENCES:
patent: 1374867 (1921-04-01), Wadsworth
patent: 1749344 (1930-03-01), Hild
patent: 3216513 (1965-11-01), Robbins et al.
patent: 3756332 (1973-09-01), Crane
patent: 3840271 (1974-10-01), Sugden
patent: 3982595 (1976-09-01), Ott
patent: 4062594 (1977-12-01), Haspert

Affiliated with

Also associated with

Rating

Rock cutting tools does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rock cutting tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rock cutting tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1060325