An air brake or, more formally, a compressed air brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle.
Define industrial union. industrial union synonyms, industrial union pronunciation, industrial union translation, English dictionary definition of industrial union. n. A labor union to which all the workers of a particular industry can belong regardless of their occupation or trade. n a labour organization in which all...
Company union. A company or yellow union is a worker organization which is dominated or influenced by an employer, and is therefore not an independent trade union. Company unions are contrary to international labour law (see ILO Convention 98, article 2).