skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Corner-cutting mining assembly

Patent ·
OSTI ID:864675

A mining assembly includes a primary rotary cutter mounted on one end of a support shaft and four secondary rotary cutters carried on the same support shaft and positioned behind the primary cutters for cutting corners in the hole cut by the latter.

DOE Contract Number:
ET-78-C-01-3138
Assignee:
Bradley, John A. (San Antonio, TX)
Patent Number(s):
US 4400036
OSTI ID:
864675
Country of Publication:
United States
Language:
English