a. A vertical or inclined shaft from a lower to an upper level in a mine.
See also: upraise; raise. Eng. Min. J., 1
b. To dig upward, as from one level to the next one above; opposite of
sink. Standard, 2
c. Upward inclination of a coal stratum. Standard, 2
d. An ascending gallery at the end of a level. See also:
Dictionary of Mining, Mineral, and Related Terms