Abstract: An excavation device having a pair of milling wheels with a substantially horizontal axis (X) of rotation. Each milling wheel peripherally equipped with an excavation apparatus to define an excavation front substantially parallel to the axis (X). The excavation device also has a chain-type transmission to draw in rotation, in a first operating condition, each of the milling wheels. The transmission is driven by a motor and provided, on its side which is external during use, with an excavation apparatus. The excavation device also has a thruster able to be activated to selectively move the transmission into a second operating position, widened and external with respect to the first operating condition.

Abstract: An excavation device comprises a pair of milling wheels with a substantially horizontal axis (X) of rotation, each peripherally equipped with excavation means, to define an excavation front substantially parallel to the axis (X), chain-type transmission means to draw in rotation, in a first operating condition, each of the milling wheels, in which the transmission means is driven by motor means and is also provided, on its side which is external during use, with excavation means, and also comprises thrust means able to be activated to selectively move the transmission means into a second operating position, widened and external with respect to the first operating condition.

Abstract: An automatic loader (10) for drill rods (11) adapted to be associated with a boring machine having a guide and drive assembly (12) for the drill rods (11) includes at least a store (13) containing a plurality of drill rods (11) and a movement assembly (14) that is able to selectively remove, one at a time, the drill rods (11) from the store (13) to position them on the guide and drive assembly (12). The movement assembly (14) is arranged in an intermediate position between the store (13) and the guide and drive assembly (12), so as to not interfere with the latter during the removal of the drill rods (11) from the store (13).

Abstract: Automatic loader (10) for drill rods (11) able to be associated with a boring machine having a guide and drive assembly (12) for said drill rods (11), said loader (10) comprising at least a store (13) containing a plurality of said drill rods (11) and movement means (14) able to selectively remove, one at a time, said drill rods (11) from said store (13) to position them on said guide and drive assembly (12), said movement means (14) being arranged in an intermediate position between said store (13) and said guide and drive assembly (12), so as to not interfere with the latter during the removal of said drill rods (11) from said store (13).

Abstract: Device (26) to feed reinforcement rods (25), which is suitable to cooperate with an excavation equipment (14) in providing lengthwise reinforcements in tunnels, particularly in excavations of a great depth amounting to about twenty meters or more, the excavation equipment (14) being borne on an excavator machine (10) and being able to rotate by an angle "alpha" from one or the other of two lateral inactive positions (A-B), the device (26) comprising means (27) for connection to the excavation equipment (14), support means (28) that bear means (30) that uphold and lift the reinforcement rods (25), means (32), that draw the reinforcement rods (25) and means (34-35) that guide and align the reinforcement rods (25).

Abstract: System for the permanent storage of radioactive wastes (11) and of wastes in general involving a great risk of environmental and human contamination, the radioactive wastes (11) being collected in drums (12) or other suitable means, the drums (12) being capable of being stacked and gathered within containers (13) consisting advantageously of centrifuged concrete, the system arranging that a multi-barrier configuration is interposed between the radioactive source (11) and the surrounding terrain (17), the multiple barriers consisting of concrete structures (13-15-16) and of clay (14-114-214) injected in the liquid state within the concrete structures (13-15-16) so as to fill the whole of the empty interspaces, the clay solidifying into an impermeable plastic agglomerate after being injected.

Abstract: Device (27) to load reinforcement rods, which is suitable to cooperate with an excavation equipment (14) in providing lengthwise reinforcements in tunnels, particularly in excavations of a great depth amounting to about twenty meters or more, the excavation equipment (14) being borne on an excavator machine (10) and being able to rotate by an angle "alpha" from one or the other of two lateral inactive positions (A-B), the excavation equipment (14) comprising a drilling head (19) suitable to cooperate alternately with drilling means (20) and with the rods (25), the device consisting of at least one movable arm means (29) connected (28) to the excavation equipment (14) and lodging shaped movable sector means (32) and shaped clamping means (33), both shaped means (32-33) being connected to second and third actuation means (35-38) for cooperation therewith and with the at least one movable arm means (29) in positioning, clamping and unclamping the drilling means (20) and the reinforcement rods (25), the at least

Abstract: Excavation device (10) with rotary cutter having a horizontal axis, the device (10) having a support structure (11) for excavation means consisting advantageously of pairs of cutter wheels (12-112) able to rotate about their axis (13), the rotation being induced by drive means (15) and suitable transmission means, the cutter wheels (12-112) being equipped with main excavation tools (18), an excavation chain (22) bearing secondary excavation tools (23) being associated with each cutter wheel (12-112) and being actuated by a sprocket wheel (19) firmly secured (20) to the respective cutter wheel (12-112) and cooperating with a transmission means (21) secured to the support structure (11), the secondary excavation tools (23) borne by the excavation chains (22) of each pair of cutter wheels (12-112) covering almost the whole excavation face between the main excavation tools (18).

Abstract: Apparatus and methods for winding an element on a pair of rotatable axially aligned drums and discharging the element therefrom between an element supply and an element processing unit. A pair of switch stations are located such that the element received from its supply and being discharged to the processing unit lie in axial alignment. The first station discharges the element onto a freely rotatable drum mounted on a rotatable element. A second axially spaced, freely rotatable drum is mounted on the element for discharging the element to the second station. Between the drums and carried for rotation with the member are a receipt and delivery station carrying a pair of rollers, respectively, overlying the first and second drums. The first and second stations are movable in an axial direction away from one another when the device winds more of the element onto the drums than discharge therefrom and are movable toward one another when the drums discharge more of the element therefrom than being wound thereon.