Replaceable cutting bit holder assembly
AssigneeM.A.T. Industries, Inc.
InventorMichael J. Amoroso
Life of this patent
Estimating the term…
Abstract
This bit holder assembly includes an elongate base member, which is fixedly attached to a mining machine cutter, and a bit-holding block member, which is connected to the base member by means of longitudinally spaced fasteners. The block member and base member each include interface portions engageable when the members are connected. The assembly can be modified to suit different types of cutting bits and the thickness of the base member can be chosen to achieve the correct mounting height for the particular bit used.
Claims8
A replaceable cutting bit holder assembly for a mining machine of the type having a movable cutter member, said assembly comprising:
- a. an elongate base means fixedly attachable to the cutter member and including opposed sides extending longitudinally generally in the direction of travel and having seating means,
- b. an elongate bit-holding block means including opposed sides extending longitudinally generally in the direction of travel and having means engageable with said seating means, and
- c. a pair of longitudinally spaced threaded fastener means received through and connecting said block means to said base means and tending to urge said block means toward said cutter member.
A cutter member for a continuous mining machine comprising:
- a. a rotatable drum having a curved upper surface,
- b. a plurality of elongate base members having the length thereof disposed generally circumferentially about said drum and being fixedly attached to the upper surface thereof said base members having a widthwise extending, substantially flat face means and said base members including a pair of longitudinally spaced threaded openings,
- c. a plurality of elongate bit-holding block members each including a lower widthwise extending substantially flat face means engageable with the face means of an associated base member, said block members including a pair of longitudinally spaced openings in register with corresponding openings in said base members, and
- d. a plurality of pairs of threaded fasteners received through the block openings and extending across the engaging face means toward the drum for threaded connection within the openings of associated base members to connect said block members to said base members in removable relation.
Dependencies are inferred from the claim text.