Investigation of rock drill bits

Author

George Elmer Abernathy

Abstract

"The object of this thesis is an attempt to determine the relative efficiency of rock drill bits.

The bits compared were the ordinary double chisel bit, sharpened with a Leyner drill sharpener, and the same bit after it had been filed so that the point was not sharp, but a flat surface 3/32 of an inch wide at the outside, diameter of the bit and tapering to a point at the center of the bit"--page 1.

Advisor(s)

Forbes, Carroll Ralph

Department(s)

Mining Engineering

Degree Name

B.S. in Mining Engineering

Comments

Illustrated by author.

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1914

Pagination

ii, 23 pages

Rights

© 1914 George Elmer Abernathy, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Bits (Drilling and boring) -- Testing
Rock-drills

Thesis Number

T 319

Print OCLC #

5938091

Electronic OCLC #

317699193

Link to Catalog Record

http://merlin.lib.umsystem.edu/record=b2609868~S5

Recommended Citation

Abernathy, George Elmer, "Investigation of rock drill bits" (1914). Bachelors Theses. 75.
https://scholarsmine.mst.edu/bachelors_theses/75