air spring (arspring)

Any device designed to resist a sudden pre ure, as the recoil of a gun, the momentum of a railroad-car, or the thrust of the moving parts of a machine, by means of the elasticity compre ed air. The common form is that of a cylinder containing air which is compre ed by a piston or plunger. Same as pneumatic air-stack (ar's tak), n. A chimney used for ventilating a coal-mine. [Pennsylvania.] air-stove (ar's tov), n. A stove provided with flues about the fire-box and chamber, the air in which when heated ascends through through pipes to the apartments to be supplied ed with warmth. See air - furnace and heater. air-strake (ar's trāk), n. In ship - building, an spring. Also called air - cushion or air - buffer. opening left for ventilating purposes between two planks of the inside ceiling of a ship.