Temper Screw Definition

Temper Screw Sentence Examples

• In addition to the appliances mentioned the tools comprise reamers to enlarge the bore of the well, the winged-substitute which is fitted above the bit to prevent it from glancing off, and above the round reamer to keep it in place, a temper-screw with clamps and wrenches.

• When the jars come together they slack back about 4 in., and the cable is in position to be clamped in the temper-screw.

• As the jar works off, or grows more feeble, by reason of the downward advance of the drill, it is ' tempered ' to the proper strength by letting down the temper-screw to give the jars more play.

• The temper-screw forms the connecting link between the walking-beam and cable, and it is ' let out ' gradually to regulate the play of the jars as fast as the drill penetrates.