Mining machine with adjustable jib

Patent · Tue May 26 00:00:00 EDT 1987

OSTI ID:6532785

Hart, D

A mining machine is described having a pair of crawler tracks, a means for individually driving each of the crawler tracks, a frame mounted on the crawler tracks, an elongated jib carrying a sprocket at each end, an endless cutting chain supported on the sprockets, cutters and loading flights mounted on the endless cutting chain, and means on the frame supporting the elongated jib. The means support the elongated jib consisting of a bridge on the frame, at least one scissors linkage pivotally mounted on the bridge, and arm having a first end attached to the scissors linkage, a front plate mounted on the second end of the arm and means adjustably mounting the elongated jib on the front plate. The means adjustably mount the elongated jib on the front plate including a first means for rotating the elongated jib between a vertical position and a horizontal position.

• Assignee: Dosco Corp., Abingdon, VA
• Patent Number(s): US 4668016
• OSTI ID: 6532785
• Resource Relation: Patent File Date: Filed date 13 Jan 1986
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
42 ENGINEERING
CHAIN CONVEYORS
DESIGN
OPERATION
UNDERGROUND MINING
COAL MINES
FASTENERS
HOISTING
MANIPULATORS
POSITIONING
RAILWAYS
SUPPORTS
CONVEYORS
EQUIPMENT
HAULAGE EQUIPMENT
LABORATORY EQUIPMENT
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
MECHANICAL STRUCTURES
MINES
MINING
REMOTE HANDLING EQUIPMENT
UNDERGROUND FACILITIES
012032* - Coal
Lignite
& Peat- Underground Mining- Transport & Services- (1987-)
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)