A directional link chain includes a directional indication element configured to indicate the travel direction of chain wheel operators, such as a chain fall or roll-up door. During operation of the chain fall, for example, the directional indication element indicates the travel direction for an attached load. The directional indication element includes both a vertical and a horizontal indication for a multitude of applications. The improved link chain enables an operator to visually recognize the gear system direction and corresponding attached load direction via the directional indication element to efficiently move the attached load the desired direction without trial and error.

A directional link chain includes a directional indication element configured to indicate the travel direction of chain wheel operators, such as a chain fall or roll-up door. During operation of the chain fall, for example, the directional indication element indicates the travel direction for an attached load. The directional indication element includes both a vertical and a horizontal indication for a multitude of applications. The improved link chain enables an operator to visually recognize the gear system direction and corresponding attached load direction via the directional indication element to efficiently move the attached load the desired direction without trial and error.

A linking element for a modular jewel includes a single and continuous body showing at least one first portion, at least one second portion and at least one third portion, wherein at least one section of the at least one first portion is in close proximity to at least one portion of the at least one second portion, the at least one first portion, the at least one second portion and the at least one third portion delimiting between them at least one first through-opening through the body, wherein the at least one first portion and the at least one second portion are separated from each other by the at least one split selectively expandable/shrinkable to delimit/occlude an access passage to the at least one through-opening.

A linking element for a modular jewel includes a single and continuous body showing at least one first portion, at least one second portion and at least one third portion, wherein at least one section of the at least one first portion is in close proximity to at least one portion of the at least one second portion, the at least one first portion, the at least one second portion and the at least one third portion delimiting between them at least one first through-opening through the body, wherein the at least one first portion and the at least one second portion are separated from each other by the at least one split selectively expandable/shrinkable to delimit/occlude an access passage to the at least one through-opening.

The invention relates to the field of anchor chains, and more particularly an anchor chain (1) comprising a first plurality of links (3) and, at the end of the chain, a second plurality of links (4) comprising at least three successive links (4) in each of which at least one property selected from its bar diameter and the elastic limit of its material is substantially greater than in each of the links (3) of the first plurality, in order to improve the ability of the chain to withstand fatigue by bending of the links (4) in the second plurality.

The invention relates to the field of anchor chains, and more particularly an anchor chain (1) comprising a first plurality of links (3) and, at the end of the chain, a second plurality of links (4) comprising at least three successive links (4) in each of which at least one property selected from its bar diameter and the elastic limit of its material is substantially greater than in each of the links (3) of the first plurality, in order to improve the ability of the chain to withstand fatigue by bending of the links (4) in the second plurality.

A block lock for connecting two chain ends is disclosed including two opposing block lock halves extending in the longitudinal direction when the block lock is in the locked state, which interlockingly engage in each other, and which lock to form at least one receiving opening for receiving a chain link. The block lock halves are pivotably coupled together in the region of a pivoting end such that the block lock halves can be shifted into an open position or locked position by performing the pivoting movement. In the locked position, the block lock halves integrally engage in one another at an opposite locking end and can be locked.

An assembly and method for using a flexible tensile member as part of the rigging for a dragline bucket. The tensile member includes a stranded core surrounded by a separate armor layer. The armor layer assumes the form of a hollow cylinder having a substantial wall thickness. A significant gap is provided between the outward-facing surface of the stranded core and the inward-facing surface of the armor layer. This gap minimizes wear between the two elements during the normal bending and flexing of the tensile member. A first anchor is attached to a first end of the stranded core and a second anchor is attached to a second end of the stranded core. These anchors serve to transmit tension carried by the stranded core. A first end of the armor layer is also attached to the first anchor and a second end of the armor layer is attached to the second anchor.

An assembly and method for using a flexible tensile member as part of the rigging for a dragline bucket. The tensile member includes a stranded core surrounded by a separate armor layer. The armor layer assumes the form of a hollow cylinder having a substantial wall thickness. A significant gap is provided between the outward-facing surface of the stranded core and the inward-facing surface of the armor layer. This gap minimizes wear between the two elements during the normal bending and flexing of the tensile member. A first anchor is attached to a first end of the stranded core and a second anchor is attached to a second end of the stranded core. These anchors serve to transmit tension carried by the stranded core. A first end of the armor layer is also attached to the first anchor and a second end of the armor layer is attached to the second anchor.

A suspension ring for multistrand lifting tackle comprises two parallel rectilinear legs connected to one another at their ends by arcuate connecting legs. A lower connecting leg is along a longitudinal center line of the ring, extending as a circular segment in the central region of its extent and in the two regions in which it merges into each of the two legs. The radii of the rounded portions on the inside of the ring are less than half the internal width of the ring but greater than half the diameter of the legs, and the central region in the form of a circular segment is connected at its ends to the transitional region as a circular segment to the adjacent leg via a rectilinear intermediate segment of the connecting leg. An angle of the intermediate segment ranges from 50 to 75 to the longitudinal center line of the ring.