Control means for a coal plough

Patent · Tue Apr 22 04:00:00 EST 1980

OSTI ID:5786132

Breuer, O; Steinkuhl, B

A coal plough which is movable to and fro in a mine working alongside a coal face, has floor-level cutters mounted on a carrier. The carrier is pivotable in a vertical plane about a horizontal axis perpendicular to the coal face. The carrier is pivotable between a working position, in which it bears against a first stop, and a non-working position, in which it bears against a second stop. The cutters bear against the floor of the working when the carrier is in the working position and are lifted clear of the floor when the carrier is in the non-working position. The first stop defines the level of cut of the cutters, and the second stop limits the upward pivotal movement of the carrier. The first and second stops are provided on the plough. The carrier is provided with cutter control means constituted by a peg which extends from the carrier towards the floor, the peg engaging the floor to move the carrier into the working position when the plough moves in one direction and to move the carrier into the non-working position when the plough moves in the opposite direction.

• Assignee: Gewerkschaft Eisenhutte Westfalia (Germany, Federal Republic Of)
• Patent Number(s): US 4199194
• OSTI ID: 5786132
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
COAL MINING
COAL PLOWS
CONTROL SYSTEMS
CUTTER LOADERS
DESIGN
EQUIPMENT
MINING
MINING EQUIPMENT