|
A grab is a mechanical device with two or more jaws (also called clamshells), used to pick things up or to capture things. Some types include: *Roundnose grab *Clamshell grab *Orange-peel grab * *in Dutch and German they are called ''poliep grijpers/ Polypengreifer'' = "polyp grabs". There are different ways of open/close the grabs: *electro-hydraulic / diesel-hydraulic *mechanical by rope(s) (1-rope, 2-ropes, 3-ropes, 4-ropes) Grabs can be used for: *dredging *bulk handling (e.g. loading/unloading ships) *salvage (e.g. ship-wrecks, oil) ==External images== *(All types of grabs manufacturer, India ) *(Arul Linu Grabs Manufacturers in Goa, India ) *(Big 2-jaw grab used for heavy salvage at sea ) of the MV Tricolor *(Shelf-Basin Interactions / bottom grab recovery ) *(Different grabs, electro- hydraulic ) *(Big grabs, special constructions ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Grab (tool)」の詳細全文を読む スポンサード リンク
|