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Singer, Isaac Merrit

(Encyclopedia)Singer, Isaac Merrit, 1811–75, American inventor, b. Rensselaer co., N.Y. As a child he lived in Oswego, N.Y. He patented in 1851 a practical sewing machine that could do continuous stitching. Altho...

Knight, George Wilson

(Encyclopedia)Knight, George Wilson, 1897–1985, English writer and critic, grad. Oxford (B.A., 1923; M.A., 1925). He wrote numerous books and essays on English literature, including The Wheel of Fire (1930), The ...

brake, in technology

(Encyclopedia)CE5 Shoe brake CE5 Disk brake brake, in technology, device to slow or stop the motion of a mechanism or vehicle. The vacuum brake system, or vacuum brake, depends upon the use of a vacuum to ...

Ogé, Vincent

(Encyclopedia)Ogé, Vincent văNsäNˈ ōzhāˈ [key], c.1750–1791, Haitian revolutionist and national hero. A free mulatto, well educated and comparatively wealthy, he was sent to plead before the National Assem...

Crompton, Samuel

(Encyclopedia)Crompton, Samuel, 1753–1827, English inventor of the mule spinner, or muslin wheel, an important step in the development of fine cotton spinning. Working as a young man in a spinning mill, he knew t...

black gum

(Encyclopedia)black gum, ornamental deciduous tree (Nyssa sylvatica family Nyssaceae) native to E North America. The leaves turn bright scarlet in the fall. The very tough wood was used for wheel hubs and other pur...

Stafford, Jean

(Encyclopedia)Stafford, Jean, 1915–79, American writer, b. Covina, Calif., grad. Univ. of Colorado, 1936. Her literary reputation rests primarily on her exquisitely wrought short stories. Both these and her novel...

Papin, Denis

(Encyclopedia)Papin, Denis dənēˈ päpăNˈ [key], 1647–1712?, French physicist and inventor. He was an assistant of Christian Huygens and of Robert Boyle and was professor of mathematics at the Univ. of Marbur...

chain

(Encyclopedia)chain, flexible series of connected links used in various ways, especially for the transmission of motive power, for hoisting (see pulley), and for securing or fastening. Commonly, mechanical energy f...

binocular

(Encyclopedia)CE5 Binocular binocular, small optical instrument consisting of two similar telescopes mounted on a single frame so that separate images enter each of the viewer's eyes. As with a single telescope...