AUTO - AIR BAGS |
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An airbag, also known as a Supplementary/Secondary Restraint System (SRS) or as an Air Cushion Restraint System (ACRS), is a flexible membrane or envelope, inflatable to contain air or some other gas. Air bags are most commonly used for cushioning, in particular after very rapid inflation in the case of an automobile collision.
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DREDGING / RECLAMATION |
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Dredging is miscellaneous excavator-type work underwater, usually in shallow sea or fresh water.
A dredge is a device for scraping or sucking the seabed, used for dredging.
A dredger is a ship or boat equipped with a dredge.
American usage sometimes calls the ship or boat a dredge.
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LIFTING EQUIPMENT |
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A mechanical jack is a device which lifts heavy equipment. The most common form is a car jack which lifts vehicles so that maintenance can be performed. Car jacks usually use mechanical advantage to allow a human to lift a vehicle. More powerful jacks use hydraulic power to provide more lift over greater distances. A mechanical jack is called a Floor Jack or a Garage Jack. A three ton jack is good around the Shop or the DIYer's Garage. The higher the jack's ton rating the better, a three ton jack will raise an automotive more than the 2 1/2 jack.
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