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2. Hoist (device) - Wikipedia

   en.wikipedia.org/wiki/Hoist_(device)

   Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

3. Suspension lift - Wikipedia

   en.wikipedia.org/wiki/Suspension_lift

   A suspension lift is a modification to a vehicle to raise the ride height. It is done for the purpose of improving the off road performance of SUVs or trucks and other off-road vehicles, or for cosmetic purposes. Suspension lifts can enable steeper approach, departure, and breakover angles, higher ground clearance, and helps accommodate larger ...

4. Left Coast Lifter - Wikipedia

   en.wikipedia.org/wiki/Left_Coast_Lifter

   Left Coast Lifter was built for the American Bridge/Fluor joint venture (ABFJV), [3] which was the lead contractor on the self-anchored suspension eastern span replacement. The barge was built in Portland, Oregon by U.S. Barge, LLC [ 4 ] and ferried to Shanghai , where it was fitted with a shear-leg crane manufactured by Shanghai Zhenhua Port ...

5. American Crane Corporation - Wikipedia

   en.wikipedia.org/wiki/American_Crane_Corporation

   The American Crane Corporation was founded in 1882 as the Franklin Manufacturing Company, and in 1892 the name changed to American Hoist & Derrick. The company manufacturers terrain cranes, crawler cranes and tower cranes.

6. Differential pulley - Wikipedia

   en.wikipedia.org/wiki/Differential_pulley

   This leads to a mechanical advantage: the force needed to lift a load is only a fraction of the load's weight. At the same time, the distance the load is lifted is smaller than the length of chain pulled by the same factor. This factor (the mechanical advantage MA) depends on the relative difference of the radii r and R of the connected pulleys:

7. Air suspension - Wikipedia

   en.wikipedia.org/wiki/Air_suspension

   Air suspension is used in place of conventional steel springs in heavy vehicle applications such as buses and trucks, and in some passenger cars. It is widely used on semi trailers and trains (primarily passenger trains). The purpose of air suspension is to provide a smooth, constant ride quality, but in