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・ Alligator Peak, British Columbia
・ Alligator pepper
・ Alligator Pie
・ Alligator pipefish
・ Alligator Point, Florida
・ Alligator Pond
・ Alligator prenasalis
・ Alligator Records
・ Alligator Reef
・ Alligator Reef Light
・ Alligator Ridge
・ Alligator River
・ Alligator River (North Carolina)
・ Alligator River National Wildlife Refuge
・ Alligator Rivers
Alligator shear
・ Alligator Sky
・ Alligator snapping turtle
・ Alligator Woman
・ Alligator wrestling
・ Alligator, Mississippi
・ Alligator-class landing ship
・ Alligatorellus
・ Alligatorfish
・ Alligatoridae
・ Alligatorinae
・ Alligatorium
・ Alligatoroidea
・ Alligny-Cosne
・ Alligny-en-Morvan


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Alligator shear : ウィキペディア英語版
Alligator shear
An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. The jaw size can range from long. They are generally used to cut steel members, such as rebar, pipe, angle iron or I-beams.〔.〕〔.〕
==Operation==
Older alligator shears were powered by a flywheel. These shears ran continuously, which posed a safety hazard. Now alligator shears are hydraulically actuated. When actuated, the piston arm extends and slowly closes the upper jaw of the alligator shear, which passes alongside the bed or lower jaw of the shear to perform the cut.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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