mechanical yielding prop

mechanical yielding prop

[mi′kan·ə·kəl ′yēld·iŋ ‚präp]
(mining engineering)
A steel prop in which yield is controlled by friction between two sliding surfaces or telescopic tubes. Also known as friction yielding prop.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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