Cutter drum extension latching mechanism

Patent · Tue Dec 25 04:00:00 EST 1984

OSTI ID:5899405

Kendrick, F B

A continuous mining machine cutting head structure is set forth. The mining machine is of a type having a support member and an elongated mining head member mounted on the forward end of the support member. The head member is powered for rotation about its longitudinal axis. The head member is of the type having axially extensible and retractable end portions. Included within the head member is a hydraulic piston cylinder arrangement for selectively extending and retracting these end portions. At least one latch element is included within each side of the head member and can be moved into locking engagement with the end portions when it is in an extended position thereby preventing retraction thereof. Also included is a mechanism operatively connected to the piston cylinder arrangement which is capable of moving the latch element out of engagement with the end portion thereby permitting retraction thereof.

• Assignee: Joy Manufacturing Company
• Patent Number(s): US 4489985
• OSTI ID: 5899405
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
COAL MINES
CONTINUOUS MINERS
CONTROL EQUIPMENT
CUTTER LOADERS
CUTTING MACHINES
CUTTING TOOLS
DESIGN
EQUIPMENT
HAULAGE EQUIPMENT
HYDRAULIC CONTROL DEVICES
LOADERS
MATERIALS HANDLING EQUIPMENT
MINES
MINING
MINING EQUIPMENT
TOOLS
UNDERGROUND FACILITIES
UNDERGROUND MINING