Date of Award

Spring 5-10-1957

Degree Type

Bachelors Thesis

Degree Name

Bachelor of Science in Mining Engineering

Department

Mining Engineering

First Advisor

Professor Koehler S. Stout

Abstract

By use of several digging principles, such devices as scrapers, clamshells, power shovel loaders, etc., have been perfected. The net results have been an almost complete elimination of hand mucking, an increase of loading speed, and a reduction of sinking costs. Moreover, the elimination of hand mucking has had a favorable psychological effect on the crew, as well as saving physical effort for the other phases of the shaft-sinking cycle.

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