A cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.

In some implementations, an ejection paddle may include a paddle body having an ejection surface and a mounting surface opposite the ejection surface, and a wear region projecting from the ejection surface and extending along a top edge of the paddle body and at least a portion of a first side edge and a second side edge of the paddle body. The paddle body may be recessed relative to the wear region.

A roller tool for a soil processing roller of a soil processing machine incudes a tool holder to be fixed on an outer peripheral side of a carrier casing. The tool holder has an attachment region for fixed attachment on an outer peripheral surface of the carrier casing and a tool holder opening elongated in the direction of an opening longitudinal axis for accommodating a replaceable tool shaft of a replaceable tool to be detachably fixed on the tool holder. The tool holder includes a first tool holder part, wherein the attachment region is provided completely on the first tool holder part, and a second tool holder part to be detachably attached to the first tool holder part. The second tool holder part, together with the first tool holder part, delimits the tool holder opening in the circumferential direction around the opening longitudinal axis.

Microtrenching blades and methods of manufacturing the same. A blade includes a blade body comprising a cutting edge, wherein the cutting edge is disposed around a perimeter of the blade body. The blade includes a center arbor bore defining a hole through the blade body, wherein the blade rotates about an axis of rotation disposed in the center arbor bore. The blade includes a plurality of cutters attached to the cutting edge. The blade is such that the cutting edge is separated into a plurality of blade segments, and further such that the plurality of blade segments each comprises two or more of the plurality of cutters.

Microtrenching blades and methods of manufacturing the same. A blade a first blade portion comprising a center arbor bore defining a hole through the blade and a second blade portion comprising a plurality of blade segments, wherein the second blade portion is distal to the first blade portion relative to the center arbor bore. The blade includes a plurality of blade scoops disposed around a perimeter of the blade. The blade is such that the plurality of blade segments and the plurality of blade scoops are arranged such that two of the plurality of blade segments are separated by a blade scoop.

Microtrenching blades and methods of manufacturing the same. A blade includes a blade body comprising a cutting edge, wherein the cutting edge is disposed around a perimeter of the blade body, and wherein the cutting edge comprises a centerline and a width. The blade comprises a plurality of cutters attached to the cutting edge. The blade is such that three or more of the plurality of cutters are each attached to the cutting edge of the blade body at a different position relative to the centerline of the cutting edge of the blade body.

A cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.

A universal cutter assembly comprising a transport device carrying a plurality of freewheeling cutting elements mounted to freely rotate about an axis, where the axis is canted about two angles with respect to the surface being cut and a line of action imparted by the transport device.

A system for laying an underwater pipeline on a bed of a body of water has a construction site to form a string of an underwater pipeline, the string being defined by a curved portion shaped substantially like a portion of the bed of the body of water characterized by an abrupt change in slope; at least two vessels to transfer, in the body of water, the string from the construction site to a laying site in the body of water and substantially on the vertical of a path along which to lay the string; and a plurality of floating devices configured to be coupled to the string and so as to selectively support and sink the string in the body of water, and progressively lay the string along the path on the bed of the body of water.

A sheath for a soil working roller (20) of a soil processing machine, said sheath is rotatable about a roller axis of rotation and comprises a plurality of sheath segments (40), mounted or mountable to surround a roller body (22) of the soil working roller (20) and following one another in the circumferential direction, wherein a plurality of roller tools (48) is arranged on an outer side of the sheath segments (40) positioned to be facing away from the roller body, wherein at least one part of the roller tools (48) comprise an interchangeable holder mounted on a respective sheath segment (48) and a replaceable tool detachably mounted or mountable on the interchangeable holder of the same, wherein a fastening opening is formed in the interchangeable holder for accommodating a fastening shaft of a replaceable tool mounted or to be mounted on the interchangeable holder, wherein a tool through opening (84) is provided in association with the at least one interchangeable holder in the sheath segment (40) supporting the same.