Home > Term: positive derail
positive derail
A device installed in or on a mine track to derail runaway cars or trips. This device is held open by a spring, necessitating that a worker hold it closed while a trip passes over it.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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ผู้สร้าง
- ed.young
- 100% positive feedback
(Milwaukee, United States)