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Was (wer) ist grabber hand - definition
MECHANICAL DEVICE
Grabber hand; Clamshell grab
Grab (tool)
A grab is a mechanical device with two or more jaws (sometime clamshell-shaped), used to pick things up or to capture things. Some types include:
AU Grabber
SELF-PROPELLED MINING VESSEL, EXCAVATOR-BASED DREDGING BARGE FOR SLUICING GOLD
Draft:AU Grabber
The AU Grabber (pronounced as: Gold Grabber;"Au" is the chemical symbol for gold) is a self-propelled barge excavator dredge used to mine Bering Sea placer gold deposits in the region around Nome, Alaska, USA. It is owned and operated by Richard Schimschat and featured in the Discovery Channel USA mining reality TV show Bering Sea Gold.
Reach extender
 01.jpg?width=200 "Dutch tool used for picking up litter")
![[[Harrison Schmitt]] using reach extender in [[Apollo 17]] mission](https://commons.wikimedia.org/wiki/Special:FilePath/Apollo 17 - Schmitt bei der Arbeit.jpg?width=200 "[[Harrison Schmitt]] using reach extender in [[Apollo 17]] mission")
HANDHELD MECHANICAL TOOL USED TO INCREASE THE RANGE OF A PERSON'S REACH WHEN GRABBING OBJECTS
Grabber arm; Hand reacher; Hand grabber; Long arm gripper; Extended gripper; Extended reach grabber; Trash picker; Picker-upper; Grabber tool; Reaching tool; Reach tool
A reach extender (reacher, grabber arm, helping hand, trash picker, picker-upper, extended gripper, long arm gripper, extended reach grabber, grabber tool, caliper etc.) is a handheld mechanical tool used to increase the range of a person's reach when grabbing objects.
Wikipedia
Grab (tool)
A grab or mechanical grab is a mechanical device with two or more jaws (sometime clamshell-shaped), 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)
- seabed sampling
