There are many kinds of anchors, which can be divided into rod anchor, rodless anchor, large grip anchor, and special anchor according to the different constructions and uses; the rodless anchor is mainly used in the first anchor of merchant ships, the stern anchor sometimes uses rod anchor and dovetail anchor.
Rodless anchor: also called mountain anchor, commonly known as Hall anchor and Speck anchor, is a rodless anchor with movable anchor claw (about 45° rotation along the anchor stem back and forth), and the anchor rod and anchor arm of the rodless anchor is cast separately. The anchor claw, anchor crown, and anchor arm are cast as one piece. The anchor stem is inserted into the rectangular hole of the anchor crown, and the pin and cross pin is positioned in the two semicircular grooves in the lower part of the anchor crown to achieve the purpose of the rotary anchor stem.
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