from the GNU version of the Collaborative International Dictionary of English
- A screw link, to which is attached the rope of a rope-drilling apparatus, for feeding and slightly turning the drill jar at each stroke.
- A set screw used for adjusting.
- n. in deep well boring, an adjusting screw connecting the working beam with the rope carrying the tools, for lowering the tools as the drilling progresses.
Sorry, no etymologies found.
Sorry, no example sentences found.