kirner

Noun

kirner (plural kirners)

1. (Scotland) A hand-operated jumper.
   • It may be noted here that all the holes were bored with an ordinary boring ratchet, and although the hole is larger than the one prepared for powder, yet it was not considered that any extra labour was taken in the boring owing to the boring ratchet being used instead of the ordinary jumper or...1887, Mining Institute of Scotland, Transactions - Volume 8, page 178
   • Tools for Single Hand Boring -- Hammer, weighing 3 or 4 lbs. ; jumpers, made of 1 inch or 3/4 inch octagon steel, or iron tipped with steel — length, 2 feet, 3 feet, and 4 feet; face of jumper 1 1/2 inch, 1 1/4 inch, and 1 inch; kirners of same material, and about 4 feet long; cleaners of copper, 4...1894, William Williamson, Mining Notes and Formulæ for Students Preparing for the, page 65