vertical borer

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• Borer's Falls (Hamilton, Ontario) — Infobox Waterfall name = Borer s Falls image size = caption = Borer s Falls location = Hamilton, Ontario latitude = longitude = coordinates = coord|43.281204| 79.931030 elevation = type = Ribbon height = convert|15|m|ft|abbr=on width =… …   Wikipedia

• Raise borer — A raise borer is a machine used in mining for drilling a circular hole or shaft between two levels of a mine. The borer is set up on the upper level of the two levels to be connected. A small diameter hole is bored to the level required, using a… …   Wikipedia

• jig borer — noun Etymology: jig (I) : a precision machine tool resembling a vertical milling machine, equipped with sensitive adjustments for the table and the position of the cutting tool, and used especially for locating and drilling or boring holes in… …   Useful english 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

• Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …   Wikipedia

• bivalve — bivalvular /buy val vyeuh leuhr/, adj. /buy valv /, n. 1. Also called lamellibranch. Zool. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. adj. 2.… …   Universalium

• Beaconsfield Mine collapse — The Beaconsfield Mine collapse occurred on 25 April 2006 in Beaconsfield, Tasmania, Australia. Of the 17 people who were in the mine at the time, 14 escaped immediately following the collapse, one was killed, and the remaining two were found… …   Wikipedia

• List of waterfalls in Hamilton, Ontario — Hamilton, Ontario is home to more than 100 waterfalls and cascades, most of which are on or near the Bruce Trail as it winds through the Niagara Escarpment. Hamilton known as The City of Waterfalls brands itself as The Waterfall Capital of The… …   Wikipedia

• Turret lathe — Hartness 3x36 flat turret lathe with cross sliding head, equipped for bar work, 1910.[1] The turret lathe is a form of metalworking lathe that is used for repetitive production of duplicate parts, which by the nature of their cutting process are… …   Wikipedia

• Crusher — For other uses, see Crusher (disambiguation). A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more… …   Wikipedia

• Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …   Wikipedia