drilling-and-boring machine
91Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
92drill — drill1 drillable, adj. drillability, n. driller, n. /dril/, n. 1. Mach., Building Trades. a. a shaftlike tool with two or more cutting edges for making holes in firm materials, esp. by rotation. b. a tool, esp. a hand tool, for holding and… …
93Mount Savage Locomotive Works — The Mount Savage Locomotive Works was a railroad workshop established at Mount Savage, Maryland, USA. The Cumberland and Pennsylvania Railroad locomotive shops were established in Mt. Savage in 1866, under the direction of James Millholland. The… …
94Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
95Raise 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… …
96Countersink — A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the… …
97List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel …
98Crandall Canyon Mine — Coordinates: 39°27′36″N 111°10′04″W / 39.460000°N 111.167639°W / 39.460000; 111.167639 The Crandall Canyon Mine, formerly Genwal …
99List of Father Ted characters — The four main characters of Father Ted. Middle rear: Father Ted Crilly (Dermot Morgan), left: Father Dougal McGuire (Ardal O Hanlon), front: Father Jack Hackett (Frank Kelly), right: Mrs Doyle (Pauline McLynn). Father Ted was a cult comedy… …
100bore — bore1 boreable, borable, adj. /bawr, bohr/, v., bored, boring, n. v.t. 1. to pierce (a solid substance) with some rotary cutting instrument. 2. to make (a hole) by drilling with such an instrument. 3. to form, make, or construct (a tunnel, mine,… …
