rock drilling machine
61Singer, Isaac Merritt — born Oct. 27, 1811, Pittstown, N.Y., U.S. died July 23, 1875, Torquay, Devon, Eng. U.S. inventor and manufacturer. He became an apprentice machinist at 19. He patented a rock drilling machine (1839) and a metal and wood carving machine (1849)… …
62Germain Sommeiller — (February 15, 1815 July 11, 1871) was a civil engineer from Savoy. He directed the construction of the Fréjus Rail Tunnel between France and Italy, also known as the Mont Cenis Tunnel. This was the first of a series of major tunnels built in the… …
63Giovanni Battista Piatti — (Milan, February 10, 1812 Milan, September 4, 1867) was an Italian civil engineer.Civil engineer from Milan, inventor of the pneumatic rock drilling machine that, with small modifications, was used in the Mont Cenis Tunnel. On the February 12,… …
64mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
65Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …
66building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
67List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …
68List of Ben 10: Alien Force episodes — This is a list of episodes in the American animated television series Ben 10: Alien Force. A total of 46 episodes have been produced and aired. [1] At the 2008 Comic Con, series producers revealed the show was picked up for a third season. The… …
69drill — 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… …
70Heavy equipment (construction) — Heavy machinery redirects here. For the album by Anders Johansson, Jens Johansson and Allan Holdsworth, see Heavy Machinery (album). Heavy equipment vehicles of various types parking near a highway construction site …
