Title: Disc cutting units for use on rock boring machines

Abstract: A rock boring machine of the kind consisting of a rotatable headplate on the front face of which is mounted a plurality of rotatable disc cutters, each disc cutter comprising an annular body, a plurality of cutting segments located on and substantially encircling the annular body around the periphery thereof, and removable clamping means for securing the cutting segments to the annular body. Each cutting segment is provided with a suitable formation adapted to engage with a complemental formation on the annular body to prevent peripheral movement of the segments around the annular body.

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Inventors: Rees, Gwilym James
Bingham, Henry

Application Number: 598167
Filing Date: 1975-07-22
Publication_date: 1977-01-25
Assignee:
Primary Class(es): 175/373 175/426
Other Classes:
US Patent Ref:

1143275	Jun, 1915	Hughes	175/373.
1691623	Nov, 1928	Black	175/375.
3041055	Jun, 1962	Risse	175/373.
3596724	Aug, 1971	Bechem	175/375.
3791465	Feb, 1974	Metge	175/373.

Other Refs:
Primary Examiner: Purser, Ernest R.
Assistant Examiner: Favreau, Richard E.
Attorney: Cushman, Darby & Cushman