an instrumentality invented for a particular purpose

lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis

lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building

lifting device for raising heavy or cumbersome objects

lifting device consisting of a horizontal cylinder turned by a crank on which a cable or rope winds

a type of lifting device used to raise and lower conveyances within the mine shaft.