sunk shaft
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Shaft construction — concerns the building of vertical openings such as Raises and Shafts. Shafts are vertical openings used for supplying equipment, personnel, and support systems to the horizontal tunnel where the pipeline is installed. They can be temporary or… … Wikipedia
shaft´like´ — shaft «shaft, shahft», noun, verb. –n. 1. a bar to support parts of a machine that turn, or to help move parts such as gears or pulleys, or to transmit power from one part of a machine to another, such as the drive shaft of an automobile. 2. a… … Useful english dictionary
shaft — [shaft, shäft] n. [ME schaft < OE sceaft, akin to Ger schaft < IE base * (s)kap , to cut with a sharp tool > SHAVE, Gr skapos, rod, L scapus, shaft, stalk] 1. a) the long stem or body of an arrow or spear b) an arrow or spear 2. a… … English World dictionary
shaft — noun ADJECTIVE ▪ deep ▪ vertical ▪ narrow ▪ elevator (AmE), lift (BrE) ▪ She almost fell down an elevator shaft … Collocations dictionary
shaft — {{11}}shaft (n.1) O.E. sceaft long, slender rod of a staff or spear, from P.Gmc. *skaftaz (Cf. O.N. skapt, O.S. skaft, O.H.G. scaft, Ger. schaft, Du. schacht, not found in Gothic), which some connect with a Germanic passive pp. of PIE root *… … Etymology dictionary
Shaft tomb — A shaft tomb or shaft grave is a type of burial structure formed from a deep and narrow shaft sunk into natural rock. Burials were then placed at the bottom. A related group of shaft and chamber tombs also incorporate a small room or rooms cut… … Wikipedia
sunk key — noun : a key that fits into keyways in both the shaft and the secured member in machinery compare saddle key … Useful english dictionary
Cliffs Shaft Mine Museum — This article is about the former iron mine in Marquette County, Michigan. For the former copper mine in Keweenaw County, Michigan, see Cliff mine. Cliffs Shaft Mine Old headframe, built 1919 … Wikipedia
Tunnel shaft — Tunnel Tun nel, n. [F. tonnelle a semicircular, wagon headed vault, a tunnel net, an arbor, OF. also tonnel; dim. of tonne a tun; so named from its resemblance to a tun in shape. See {Ton}.] 1. A vessel with a broad mouth at one end, a pipe or… … The Collaborative International Dictionary of English
discovery shaft — A shaft which the mining laws of some states require to be sunk within a prescribed number of days after discovery. 36 Am J1st Min & M § 88 … Ballentine's law dictionary
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
