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Summary of Surface Testing of the Umbrella Miner Concept and First Prototype Machine.

Authors
Farrar-RB
Source
NTIS: PB/87-133926 :11 pages
Link
NIOSHTIC No.
10005336
Abstract
The umbrella miner, a prototype continuous mining machine for simultaneous mining and bolting in a room-and-pillar coal mine, was designed and fabricated. This machine was tested on the surface at the Pittsburgh Research Center's mine equipment test facility during an 18-month period from September 1984 through February 1986. Surface testing of the umbrella miner first prototype unit showed the concept to have considerable potential for fulfilling the industry need for a mining machine that can simultaneously mine coal, bolt roof, and advance continuously from "break to break." However, a second-generation machine would have to be designed, fabricated, and tested before that potential could be realized. The first prototype umbrella miner, a highly experimental machine, experienced several major problems during surface testing. Chief among these were the inability to tram and maneuver dependably, the inconsistent operation of the hydraulically powered functions because of the complexity of the hydraulic system, and unreliability of the gathering head conveyor.
Publication Date
19860101
Document Type
CP; Final Contract Report;
Fiscal Year
1986
NTIS Accession No.
PB87-133926
NTIS Price
A03
Identifying No.
OFR 87-86
NIOSH Division
PRC;
Source Name
NTIS: PB/87-133926
Performing Organization
Fairchild Internat'l, Inc.
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