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It is used to wind a line when breaking or making up rod
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
Casing, or pipe joints, or to operate a drive hammer. also called niggerhead. 2. colloquial synonym for drum of the drill hoist. 3. a small capstan.
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Niggerhead, английский
- A cathead or small capstan.
- A hard, flintlike, dark-colored rock nodule, boulder, or rounded field stone.
Colloquial, английский
A разговорный language, speech, standard
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Inserted-joint casing, английский
Casing, the box-thread ends of which are belled or swaged outward to receive the pin-thread portion of another piece of casing when coupled together; also sometimes incorrectly used as a synonym for flush-coupled casing.
Natural carbon, английский
Carbon the natural "as found" shape of which has not been artificially modified. also called natural stone.
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