Bachelors Theses

Abstract

"The object of this thesis is to find out the relative cutting qualities of different kinds of rock drill bits. The bits tested were: the regular cross bit, the Z bit of the Southeast Missouri type and the bull bit of the Joplin type. All these bits were made on a No. 5 Leyner sharpener and were tempered as nearly alike as possible. All conditions were kept as nearly uniform as possible during the various tests; air pressure, length of stroke, size of bit, etc., the only variables entering being the difference in bits and personal equation of operators"--Introduction, page 1.

Advisor(s)

Forbes, Carroll Ralph

Department(s)

Mining and Nuclear Engineering

Degree Name

B.S. in Mining Engineering

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1914

Pagination

ii, 24 pages

Rights

© 1914 C. Thomas Robson and M. L. Cepeda, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

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

Thesis Number

T 325

Print OCLC #

5938289

Electronic OCLC #

317956961

Comments

Illustrated by authors.
M. L. Cepeda determined to be Miguel Leon Cepeda from "Forty-Third Annual Catalogue. School of Mines and Metallurgy, University of Missouri", where he is listed as a Senior. There is no evidence that Mr. Cepeda graduated from the University of Missouri, determined from the "1874-1999 MSM-UMR Alumni Directory".

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