Century Dictionary and Cyclopedia
- n. In printing, the longer rods on three sides of the fly of a printing-press, which give the smaller rods proper strength and stiffness.
- n. In plate glass manufacturing, a machine for grinding smooth any roughnesses upon the surface of the plates. It consists of two beds of stone or cast-iron placed a short distance apart, with a pivoted frame with two arms secured between them, and oscillating on its pivot. The arms carry heavy rubbing-plates, each being secured to its arm by a pin traveling in a slot in the arm. When the machine is set in motion, sand and water are applied between the rubbing-plates and the plates of glass, which are secured upon the beds by plaster of Paris, and a vigorous grinding action is induced upon the surface of the glass.
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