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Automatic Brakes for Mine-track Transportation Systems in Underground Coal Mines.

Authors
Kiwior-AM
Source
NTIS: PB/250-941 Available for Reference At Bureau Libraries :81 pages
Link
NIOSHTIC No.
10001306
Abstract
Since haulage accidents account for a high percentage of coal mining accidents, research was initiated to design and develop an automatic braking system for mine track equipment to prevent break-in-two and runaway accidents. A fail-safe automatic braking system was designed and installed on the electric-powered, 4-ton locomotive and five 2-ton-capacity coal haulage cars at the Bureau of Mines experimental mine in Bruceton, Pennsylvania. The brakes are applied at all times and can be released only if all the brake system components are working correctly. Thus, any brake system failure will result in a brake application. A speed sensor limits the trip speed to 6 mph. If a trip separation occurs, the pneumatic intercar connection will automatically disconnect and brakes are applied.
Publication Date
19750101
Document Type
CP; Final Contract Report;
Fiscal Year
1975
NTIS Accession No.
PB-250941
NTIS Price
A06
Identifying No.
OFR 84-75
NIOSH Division
PRC;
Source Name
NTIS: PB/250-941 Available for Reference At Bureau Libraries
State
PA;
Performing Organization
Bendix Corporation
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