Title: Disc cutting unit for use on rock boring machines

Abstract: A rock-boring machine of the type comprising a rotatable headplate having a plurality of disc cutting units mounted on the front face of the headplate. Each disc cutting unit includes an annular rotatable body having a continuous recess extending around its periphery and a plurality of cutting segments located in the recess. The segments are secured in the recess by means of removable clamping means.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Bingham, Henry (Transvaal, ZA)
Glassford, John Gilmour (Transvaal, ZA)
Pope, Noel Cuthbert (Transvaal, ZA)

Application Number: 365682
Filing Date: 1973-05-31
Publication_date: 1976-09-21
Assignee: Hard Metals Limited (Johannesburg, ZA)
Primary Class(es): 175/373 175/361, 175/374
Other Classes:
US Patent Ref:

1143275	Jun, 1915	Hughes	175/367.
1673285	Jun, 1928	Holdaway et al.	175/350.
1705055	Mar, 1929	Allison	175/351.
3204710	Sep, 1965	Bechem	175/351.
3572452	Mar, 1971	Winberg	175/371.
3734213	May, 1973	Goodfellow	175/374.
3752243	Aug, 1973	Hummer et al.	175/372.

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