Windlass - Windlass (English spelling)

Japanese: ウィンドラス - うぃんどらす（英語表記）windlass

Also called an anchor windlass, this deck machine is used to pull up anchors, and is usually installed on the bow deck. There are manual types for very small anchors weighing around 60 kg, but all large ships are powered. It has a winding wheel with a chain groove of the shape and size that the anchor chain fits into, and the chain is wound up by rotating this with a gear, and the wound up anchor chain is lowered into the anchor chain storehouse. When dropping the anchor, the clutch is released and the winding wheel is allowed to spin freely, using the anchor's own weight. In addition, rope reeling drums are usually attached to both ends of the winding wheel, which are also used to wind up the mooring rope.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

揚錨（ようびよう）機ともいう。錨を引き上げるための甲板機械で，ふつうは船首の甲板上に設ける。ごく小型の60kgくらいの重量の錨用には手動式もあるが，大型船ではすべて動力式である。錨鎖がはまり込む形状･寸法の鎖溝をもつ巻取車輪を備え，これを歯車で回転させながら巻き揚げ，巻き揚げた錨鎖は錨鎖庫に下ろす。投下の際にはクラッチを外して巻取車輪を空転させ，錨の自重を利用する。またふつう巻取車輪の両軸端には綱巻胴が設けられており，これで係船用の索の巻取りも行われる。

出典　株式会社平凡社世界大百科事典第２版について　情報

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