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 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
Subject Headings
Bits (Drilling and boring) -- TestingRock-drills
Thesis Number
T 325
Print OCLC #
5938289
Electronic OCLC #
317956961
Recommended Citation
Robson, Thomas C. and Cepeda, Miguel Leon, "Comparative tests of rock drill bits for piston machines" (1914). Bachelors Theses. 69.
https://scholarsmine.mst.edu/bachelors_theses/69
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".