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welding
welding process for joining separate pieces of metal in a continuous metallic bond. Cold-pressure welding is accomplished by the application of high pressure at room temperature; forge welding (forging) is done by means of hammering, with the addition of heat. In most processes in common use, the m...
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brazing
brazing method of joining metal parts using nonferrous filler metals with high melting points such as copper, silver, and aluminum alloys . Brazing differs from soldering (see solder ) by using a higher temperature; and unlike welding , the parts are not melted. Brazing is best for dissimilar or...
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John Chamberlain
John Chamberlain 1927-, American sculptor, b. Rochester, Ind. In the late 1950s, Chamberlain became known for his welded assemblages of smashed automobile parts and colored scrap metal. His work is represented in the Los Angeles County Museum and the Museum of Modern Art, New York City.
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Theodore Dwight Weld
Theodore Dwight Weld 1803-95, American abolitionist, b. Hampton, Conn. In 1825 his family moved to upstate New York, and he entered Hamilton College. While in college he became a disciple of the evangelist Charles G. Finney and was influenced by Charles Stuart, a retired British army officer who ...
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Bay Psalm Book
Bay Psalm Book common hymnal of the Massachusetts Bay colony. Written by Richard Mather, John Eliot, and Thomas Weld, it was published in 1640 at Cambridge as The Whole Book of Psalms Faithfully Translated into English Metre. The announced effort of the authors to make a literal rendering at the ...
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Angelina Emily Grimké
Angelina Emily Grimké , 1805-79, American abolitionist and advocate of women's rights, b. Charleston, S.C. Converted to the Quaker faith by her elder sister Sarah Moore Grimké, she became an abolitionist in 1835, wrote An Appeal to the Christian Women of the South (1836) in testimony...
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Reuben Nakian
Reuben Nakian , 1897-1986, American sculptor, b. College Point, New York. Nakian's work is characterized by bold, massive, rough-textured forms organically draped or leaning heavily against one another. Most are abstract portrayals of themes from classical mythology. The monumental Rape of Lucrece ...
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thermite
thermite [from Thermit, a trade name], mixture of powdered or granular aluminum metal and powdered iron oxide. When ignited it gives off large amounts of heat. In wartime it has been used in incendiary bombs. A method for welding using thermite (invented by Dr. Hans Goldschmidt, a German chemis...
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Clarksburg
Clarksburg city (1990 pop. 18,059), seat of Harrison co., N central W.Va., at the confluence of Elk Creek and the West Fork of the Monongahela River; inc. 1795. It is an industrial and shipping center for an area of coal mines, oil and natural gas fields, and grazing lands. Glass and fabricated met...
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epoxy resins
epoxy resins group of synthetic resins used to make plastics and adhesives. These materials are noted for their versatility, but their relatively high cost has limited their use. High resistance to chemicals and outstanding adhesion, durability, and toughness have made them valuable as coatings. ...
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