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The Collaborative International Dictionary
Lifting jack

Lifting \Lift"ing\, a. Used in, or for, or by, lifting. Lifting bridge, a lift bridge. Lifting jack. See 2d Jack, 5. Lifting machine. See Health lift, under Health. Lifting pump. (Mach.)

  1. A kind of pump having a bucket, or valved piston, instead of a solid piston, for drawing water and lifting it to a high level.

  2. A pump which lifts the water only to the top of the pump, or delivers it through a spout; a lift pump.

    Lifting rod, a vertical rod lifted by a rock shaft, and imparting motion to a puppet valve; -- used in the engines of river steamboats.

    Lifting sail (Naut.), one which tends to lift a vessel's bow out of water, as jibs and square foresails.

Usage examples of "lifting jack".

She seemed terrified at her husband's approach, and lifting Jack up by his collar, threw him into the oven to hide him, and shut the door: but he could peep into the room through a crack invisible on the outside.