|
|
|
|
|
|
|
|
|
Bulldog
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
- A type of drill-rod-foot safety clamp built somewhat like a spider and slips but differing by having the slips or movable jaws attached to, and actuated by, a foot-operated lever.
- A general term applied to rod and/or casing safety clamps having both fixed and movable ser rated jaws that contact and securely grip the rods or casing.
- A fishing tool consisting of a steel body, tapered at the top, on which slide two or more wedge-shaped, serrated-face segments. lowered into a tubular piece of lost equipment, such as casing, the serrated segments are pushed upward toward the narrow part of the body, and when the tool is raised, the segments are forced outward, securely gripping the lost equipment. also called bulldog spear, casing dog, casing spear. 4. to pull or move a drill machine or auxiliary equip ment by means of block and tackle or by power de rived from a rope used on the drill cathead or hoist drum. also called cat, snake.
|
|
|
Camouflet, английский
- 4. a synonym for finger as applied to the fingers of a basket core lifter.
- A cavity formed in a borehole by the detonation of an explosive charge placed in the borehole.
Bull wheel, английский
- The large winding drum on which the drill cable or bull rope of a churn or cable-tool drill is wound.
- Large sheave at the top of the mine-shaft head-frame over which the cage- or skip-hoist rope passes.
|
|
|
|
|
|
|
