Mining drill with apertures and collars providing for flow of debris

Patent · Tue Jul 24 04:00:00 EDT 1984

OSTI ID:6311895

Staggs, A; Flores, C

A mining drill mountable in a holder of a drilling machine. The drill includes an elongated shaft having an internal bore extending longitudinally therethrough. A cutting bit is mountable on one end of the shaft and includes a cutting tip mounted at one end thereof and a plurality of cutting teeth disposed about its periphery. A partial longitudinal bore is formed in the cutting bit and is alignable with the bore in the shaft. An aperture is formed in the cutting bit in communication with the bore in the cutting bit to direct debris through the aperture into the aligned bores in the cutting bit and shaft. A collar is mounted on the shaft and has a downward-extending inclined top surface. At least one aperture is formed in the shaft adjacent to the collar in communication with the interior bore in the shaft to direct debris into the bore. A cutting edge is formed on the bottom of the collar.

• Assignee: EDB-85-014369
• Patent Number(s): US 4461362
• OSTI ID: 6311895
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
CUTTING TOOLS
CUTTINGS REMOVAL
DESIGN
DRILL BITS
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
FABRICATION
FASTENING
JOINING
MACHINE PARTS
MECHANICAL STRUCTURES
MINE ROADWAYS
MINING
REMOVAL
SHAFTS
SLEEVES
SUPPORTS
TOOLS
TUNNELS
UNDERGROUND FACILITIES