Chain clamp and method for clamping around an elongated object and for serving as a support for separate objects. The chain clamp includes a plurality of links with a first link and a second link, and with each link having two attachment portions, a connection member connecting links, and a tensioner adapted to connect to the first and second link and to force the links towards each other to tension the chain clamp and clamp it around the elongated object. At least one link is a piece cut from an elongated extrusion and has a fixed cross-sectional profile and a longitudinal direction, wherein each of the two attachment portions of the at least one link are defined by a respective portion of the cross sectional profile and its continuation along the longitudinal direction of the at least one link.

Chain clamp and method for clamping around an elongated object and for serving as a support for separate objects. The chain clamp includes a plurality of links with a first link and a second link, and with each link having two attachment portions, a connection member connecting links, and a tensioner adapted to connect to the first and second link and to force the links towards each other to tension the chain clamp and clamp it around the elongated object. At least one link is a piece cut from an elongated extrusion and has a fixed cross-sectional profile and a longitudinal direction, wherein each of the two attachment portions of the at least one link are defined by a respective portion of the cross sectional profile and its continuation along the longitudinal direction of the at least one link.

A chain bending limiting attachment includes first bending limiting members and second bending limiting members. The first and second bending limiting members are detachably attached to a chain to be arranged in a series arrangement direction. Each first bending limiting member includes a first engaging portion. When the chain bends in a first direction, the first engaging portion engages with another first bending limiting member adjacent to the first bending limiting member in the series arrangement direction to limit bending of the chain in the first direction. Each second bending limiting member includes a second engaging portion. When the chain bends in a second direction, the second engaging portion engages with another second bending limiting member adjacent to the second bending limiting member in the series direction to limit bending of the chain in the second direction.

A chain bending limiting attachment includes first bending limiting members and second bending limiting members. The first and second bending limiting members are detachably attached to a chain to be arranged in a series arrangement direction. Each first bending limiting member includes a first engaging portion. When the chain bends in a first direction, the first engaging portion engages with another first bending limiting member adjacent to the first bending limiting member in the series arrangement direction to limit bending of the chain in the first direction. Each second bending limiting member includes a second engaging portion. When the chain bends in a second direction, the second engaging portion engages with another second bending limiting member adjacent to the second bending limiting member in the series direction to limit bending of the chain in the second direction.

A support and guiding apparatus for feeder lines having a feed pipe for excavation devices is disclosed. The apparatus has a support branch and a plurality of crosspieces connected with the support branch which includes ring chain having a first and a second series of rings linked to one another in an alternate manner, defining a longitudinal axis (X); a plurality of spacer elements coupled to rings of the first series of rings so that they cannot slide. Each of the spacer elements has a seat that houses a ring of the first series of rings by orienting it in a substantially stable manner on a first lying plane, a second seat and a third seat opposite to each other that partially house the rings of the second series of rings linked to the one housed in the first seat by orienting them on a second lying plane transverse to the first lying plane, each of said spacer elements being arranged to prevent the longitudinal sliding between the rings and to allow the rotation of the rings of the second series of rings only on the second lying plane around a rotation axis perpendicular to the longitudinal axis of the chain and to the second lying plane.

A support and guiding apparatus for feeder lines having a feed pipe for excavation devices is disclosed. The apparatus has a support branch and a plurality of crosspieces connected with the support branch which includes ring chain having a first and a second series of rings linked to one another in an alternate manner, defining a longitudinal axis (X); a plurality of spacer elements coupled to rings of the first series of rings so that they cannot slide. Each of the spacer elements has a seat that houses a ring of the first series of rings by orienting it in a substantially stable manner on a first lying plane, a second seat and a third seat opposite to each other that partially house the rings of the second series of rings linked to the one housed in the first seat by orienting them on a second lying plane transverse to the first lying plane, each of said spacer elements being arranged to prevent the longitudinal sliding between the rings and to allow the rotation of the rings of the second series of rings only on the second lying plane around a rotation axis perpendicular to the longitudinal axis of the chain and to the second lying plane.

A debarking chain having bent links; the bent links being bent either right or left, from end to end at a bend angle of from about 5 to about 90 degrees to provide a flail type debarking chain having protruding edges or corners that increase the efficiency in which bark is removed from logs during debarking operations. Bent link chains include right bent links that are bent to the right proximate the middle of the link, where the weld is preferably located, when the link is viewed from the side with the weld on the far side and left bent links that are bent to the left proximate the middle of the link, where the weld is preferably located, when the link is viewed from the side with the weld on the far side. Disclosed inventions also include a debarking drum having a plurality of debarking chains having at least two bent links, as well as debarking devices having such a debarking drum and methods of making and using the same. The debarking device preferably includes a chipping device and methods of using the same in conjunction with using such bent link debarking chain.

A debarking chain having bent links; the bent links being bent either right or left, from end to end at a bend angle of from about 5 to about 90 degrees to provide a flail type debarking chain having protruding edges or corners that increase the efficiency in which bark is removed from logs during debarking operations. Bent link chains include right bent links that are bent to the right proximate the middle of the link, where the weld is preferably located, when the link is viewed from the side with the weld on the far side and left bent links that are bent to the left proximate the middle of the link, where the weld is preferably located, when the link is viewed from the side with the weld on the far side. Disclosed inventions also include a debarking drum having a plurality of debarking chains having at least two bent links, as well as debarking devices having such a debarking drum and methods of making and using the same. The debarking device preferably includes a chipping device and methods of using the same in conjunction with using such bent link debarking chain.

The cleaning device is for cleaning the inner surface of pipes. The method is for manufacturing the cleaning device and the use is of a vehicle anti-skid chain for cleaning the inner surface of a pipe. The cleaning device has a sleeve, to which are attached studded chains composed of steel links and surface hardened.

The cleaning device is for cleaning the inner surface of pipes. The method is for manufacturing the cleaning device and the use is of a vehicle anti-skid chain for cleaning the inner surface of a pipe. The cleaning device has a sleeve, to which are attached studded chains composed of steel links and surface hardened.