LAY SHAFT; LAYSHAFT n.
operated by a two-to-one gear in an internal- combustion engine. It is generally a shaft moving more or less independently of the other parts of a machine, as, in some marine engines, a shaft, driven by a small auxiliary engine, for independently operating the valves of the main engine to insure uniform motion.…
LIGHTNING n.
l powers. [R.] Ball lightning, a rare form of lightning sometimes seen as a globe of fire moving from the clouds to the earth. -- Chain lightning, lightning in angular, zigzag, or forked flashes. -- Heat lightning, more or less vivid and extensive flashes of electric light, without thunder, seen near the horizon, esp…
LIVE a.
the genus Eragrostis. -- Live load (Engin.), a suddenly applied load; a varying load; a moving load; as a moving train of cars on a bridge, or wind pressure on a roof. Live oak (Bot.), a species of oak (Quercus virens), growing in the Southern States, of great durability, and highly esteemed for ship timber. In Calif…
MACHINE n.
t, etc.; especially, a construction, more or less complex, consisting of a combination of moving parts, or simple mechanical elements, as wheels, levers, cams, etc., with their supports and connecting framework, calculated to constitute a prime mover, or to receive force and motion from a prime mover or from another ma…