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- A screw-type scissors jack is an inclined plane. The threads on the screw is the plane wrapped around the shaft. The shaft is rotated by the means of a lever.
- An hydraulic (bottle) jack is usually a compound machine. It will have a screw in the piston to take up the slack and the hydraulic piston is actuated by a lever.
- An hydraulic wheeled floor jack will also be a compound machine. The handle that pumps the piston is a lever and the piston often pushes on a pantograph to raise the tongue. The pantograph is a set of levers.
- A buggy jack is a form of inclined plane.
- A bumper jack (the sort that consists of a post and a traveling mechanism) is an example of a lever.
The last two examples are simple machines. See the links for pix.
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