Marine anchor screw chain maker B type  

The chain stopper is set between the windlass and the anchor cylinder to fix the anchor chain and prevent the anchor chain from slipping out. When mooring, the chain stopper transmits the tension generated by the anchor and the anchor chain to the hull to reduce the load of the windlass and protect the windlass. Bear the anchor's gravity and inertial force when sailing. Commonly used are the following: 1. Spiral chain stopper The screw chain stopper consists of two splints and a screw with a forward and reverse thread with a crank handle. When the crank handle is turned to clamp the two splints, the anchor chain is clamped; otherwise, the anchor chain can be freely entered and exited by loosening the splint. Although its tightening action is slow, its structure is simple and reliable, so it is still widely used in medium and small ships. 2. Knife chain brake The guillotine chain brake is simple in structure and fast in operation. However, when its size is large, it is bulky and is ge…