DUPLEX a.
. -- Duplex lathe, one for turning off, screwing, and surfacing, by means of two cutting tools, on opposite sides of the piece operated upon. -- Duplex pumping engine, a steam pump in which two steam cylinders are placed side by side, one operating the valves of the other. -- Duplex querela Etym: [L., double complai…
EDGE n. 3 definitions
ge railway, a railway having the rails set on edge. -- Edge stone, a curbstone. -- Edge tool. (a) Any tool instrument having a sharp edge intended for cutting. (b) A tool for forming or dressing an edge; an edging tool. -- To be on edge, to be eager, impatient, or anxious. -- To set the teeth on edge, to cause a di…
FLAT a.
of ornamenting silverware, etc., producing figures by dots and lines made with a punching tool. Knight. -- Flat chisel, a sculptor's chisel for smoothing. -- Flat file, a file wider than its thickness, and of rectangular section. See File. -- Flat nail, a small, sharp-pointed, wrought nail, with a flat, thin head, l…
FLINT n.
powdered silex. -- Flint glass. See in the Vocabulary. -- Flint implements (Archæol.), tools, etc., employed by men before the use of metals, such as axes, arrows, spears, knives, wedges, etc., which were commonly made of flint, but also of granite, jade, jasper, and other hard stones. -- Flint mill. (a) (Pottery)…