FRICTION n.
A device in which a piece on one shaft or pulley is so forcibly pressed against a piece on another shaft that the two will revolve together; as, in the illustration, the cone a on one shaft, when thrust forcibly into the corresponding hollow cone b on the other shaft, compels the shafts to rotate together, by the hold…
GUIDE n.
-- Guide pile (Engin.), a pile driven to mark a place, as a point to work to. -- Guide pulley (Mach.), a pulley for directing or changing the line of motion of belt; an idler. Knight. -- Guide rail (Railroads), an additional rail, between the others, gripped by horizontal driving wheels on the locomotive, as a mean…