The invention relates to a trench wall cutting device comprising a trench cutter having at least one cutting frame unit and at least two cutting wheels arranged in the longitudinal direction of the cutting frame unit and is configured for cutting a substantially vertical cutting trench in the ground, a supporting structure for suspending the trench cutter in a cutting position and moving it in a substantially vertical cutting direction for creating the cutting trench, and a feed device for feeding the trench cutter in a feeding direction which is oriented transversely to the cutting direction. According to the invention, it is provided that the feed device is configured for feeding the at least one cutting frame unit with the two cutting wheels in a transversely-oriented feed position, wherein the longitudinal direction of the cutting frame unit is oriented in parallel to the feeding direction, and that a pivoting device is provided by means of which the cutting frame unit with the cutting wheels can be pivoted from the transversely-oriented feed position into the substantially vertical cutting position.

A system for uncovering a trench. The system comprises several subsystems, including a work machine and a frame for providing a seal with the surface to be trenched with a saw blade contained therein. The blade is supported on a hub which is slidably movable relative to the frame by operation of a linear actuator, which may be a hydraulic cylinder or the like. The vertical location of the blade within the frame is continuously adjustable to create a deeper or shallower trench. A monitoring system is provided to monitor the vertical location from an operator station.

A system for uncovering and sealing a narrow trench. The system comprises several subsystems, including a work machine, a frame for providing a seal with the surface to be trenched, a saw blade, a vacuum system, a system for placing product, and a resealer. The blade includes rotatable tooth bits, which may be rotated and secured to create a blade for narrower or a wider trench. A removable cover and the blade are easily changeable. A surface engaging member on the frame is manipulated to maintain a seal with changing ground surfaces. Additionally, the vertical location of the blade within the frame is adjustable to create a deeper or shallower trench.

The present disclosure relates to grinders in the form of a planer or drum grinder for milling surfaces such as asphalt or concrete. The planer has a multiplicity of cutters oriented in selected arrangements. It is described in the context of a representative system that is added to prime movers, such as skid-steer loaders.

A cutting tool (1) for producing a trench (2) in the ground (3) for laying cables (4), comprises a carrier device (5) which has a hub region (6) for connecting the cutting tool (1) to a rotary drive (7) and a peripheral region (8), wherein, arranged in the peripheral region (8) of the carrier device (5) are cutting segments (9) spaced from each other in an axial direction (10), wherein the carrier device (5) is in one piece and has a peripheral surface (11) at which are arranged raised portions (12, 13) which project from the peripheral surface (11) in a radial direction (14) and on which the cutting segments (9) are arranged.

The present disclosure relates to grinders in the form of a planer or drum grinder for milling surfaces such as asphalt or concrete. The planer has a multiplicity of cutters oriented in selected arrangements. It is described in the context of a representative system that is added to prime movers, such as skid-steer loaders.

A device for making a vertical retaining wall and/or foundation includes a frame with a substantially vertically movable outer end, and a cutting frame mounted close to the outer end. The cutting frame has at least one pair of drums rotatable about respective rotation axes that lies parallel to each other so the drums can rotate adjacently of each other. An outer surface of each drum has at least one row with at least five cutter holders extending radially from the outer surface. Each cutter holder has at least one cutting element extending away from the outer surface and having a stop surface which has an angle with a centre line which intersects the rotation axis of the corresponding drum and a centre of the corresponding cutter holder at the outer surface. The drums are driveable to dislodge soil while the outer end is driven into the soil.

The invention relates to a drilling machine (10) for making an excavation in ground in a drilling direction that is substantially vertical, said drilling machine comprising: an anchor module (22) having at least one anchor element for preventing the anchor module from moving relative to the walls of the excavation in the drilling direction, the anchor module having a longitudinal direction that is substantially vertical; a drilling module (12) provided with cutter members, the drilling module being movable in translation relative to the anchor module in the drilling direction; and a movement device (50) arranged between the anchor module and the drilling module in order to move the drilling module in translation relative to the anchor module in the drilling direction.

The invention is characterized by the fact that the machine is suspended from a lift cable (70) that is fastened to the drilling module (12).

A cutting tooth system includes a plurality of substrates, each having a base for attaching to the cutting wheel, and an outer surface opposite the base. A plurality of tooth pockets are integrally formed in the substrate, each tooth pocket having a tooth receiving aperture extending through the outer surface and into the substrate. A cutting tooth has a pocket engagement portion configured for being received in a mounting pocket. The pocket engagement portion defines a pocket engagement length and a shank defining a shank diameter. A cutter portion extends from the pocket engagement portion.

A bucket wheel machine 100 having a base 102 and an operating block 104. The operating block has a bucket wheel 106, a bearing 112,114, and at least one of a ring chute 120, a bucket wheel chute 108, and a bucket wheel drive 116. The operating block 104 is detachably attached to the base of the bucket wheel machine 102. The operating block 104 also has a support frame 130 which is connected to the bearing 112,114.