摘要:
A quick-coupling link to be utilized in conjunction with an identical link has a slot in one of the longitudinal side portions of the link. A tab extends from the opposite longitudinal side portion to adjacent the slot. The tab spans the width of the slot. When a pair of identical links are joined, the tabs prevent the links from accidentally being uncoupled as the slots cannot be brought into disengaging alignment without bending the flexible tab away from the entry to the slot.
摘要:
A studded chain link wherein a stud is inserted between the sides of the link and fixed thereto only by pressing said sides of the link towards the opposed ends of the stud, the ends of said stud having concave configuration in two mutually perpendicular planes.
摘要:
A chain for scouring the inside surfaces of a drum. The chain has a plurality of running links, these being links which are secured to each other in seriation. Cross-links are attached to mutually spaced (not directly interconnected) running links to increase chain flexibility. All the links have the same configuration. Indentations are provided at each corner between adjacent sides of the link. All the links have hard surfaces, for example being case hardened or nitrided.