Abstract: A reinforced multi-layer hydraulic hose, including a plurality of anti-pressure layers with coiled wires or yarns at a winding angle of about 54.7° with respect to a longitudinal central axis of the hose, and at least one anti-tensile stress reinforcing layer that improves the resistance to the axial force of the hose and has at least one plait or coil of steel wires at a winding angle of less than 35°, in which the hose, owing to the high resistance to the axial force, can be used in a rectilinear configuration to supply a hydraulic fluid also in the presence of significant axial forces.

Abstract: A reinforced multi-layer hydraulic hose, including a plurality of anti-pressure layers with coiled wires or yarns at a winding angle of about 54.7° with respect to a longitudinal central axis of the hose, and at least one anti-tensile stress reinforcing layer that improves the resistance to the axial force of the hose and has at least one plait or coil of steel wires at a winding angle of less than 35°, in which the hose, owing to the high resistance to the axial force, can be used in a rectilinear configuration to supply a hydraulic fluid also in the presence of significant axial forces.

Abstract: A quick connector is described to removably connect hydraulic equipment operating in underground coal mines, wherein two tubular bodies are coupled to each other such as to define one individual fluid passage, a tubular element is movable between a closed position and an open position in which it either blocks or allows a relative axial movement between the tubular bodies, respectively, and a safety member slides on the tubular element between at least one safety position and a freedom position, wherein it either blocks or allows the tubular element to move to the open position, respectively.

Abstract: A quick connector is described to removably connect hydraulic equipment operating in underground coal mines, wherein two tubular bodies are coupled to each other such as to define one individual fluid passage, a tubular element is movable between a closed position and an open position in which it either blocks or allows a relative axial movement between the tubular bodies, respectively, and a safety member slides on the tubular element between at least one safety position and a freedom position, wherein it either blocks or allows the tubular to element to move to the open position, respectively.

Abstract: A rotatable joint includes a body configured for connecting to an external system and provided with an internal hole arranged for being traversed by pressurised fluid, a tubular element on an end of which a hose can be inserted that is sealingly coupled with the joint and provided with a further through hole that defines, together with the internal hole, a longitudinal channel that extends parallel to a longitudinal axis within which the pressurised fluid flows. The joint further includes an annular closing element fixed to the tubular body by a threaded connection and a rotatable coupling arrangement that acts at least in a longitudinal direction to enable mutual rotation between the tubular element and the tubular body.

Abstract: A rotatable joint includes a body configured for connecting to an external system and provided with an internal hole arranged for being traversed by pressurised fluid, a tubular element on an end of which a hose can be inserted that is sealingly coupled with the joint and provided with a further through hole that defines, together with the internal hole, a longitudinal channel that extends parallel to a longitudinal axis within which the pressurised fluid flows. The joint further includes an annular closing element fixed to the tubular body by a threaded connection and a rotatable coupling arrangement that acts at least in a longitudinal direction to enable mutual rotation between the tubular element and the tubular body.

Abstract: An apparatus for crimping an end fitting onto a flexible drilling hose is described. The apparatus includes a frame supporting a plurality of crimping dies arranged in a circular pattern and extending along a radial axis from a common longitudinal axis. The frame is manually movable along a linear slideway parallel to said longitudinal axis to position said crimping dies with respect to the assembly to be crimped.

Abstract: An insert with connecting outlet for flexible hoses, particularly for hydraulic and industrial applications, comprising a body which is suitable to be inserted, with a first end, in a flexible hose to be connected and, with a second end, in a port of an apparatus, by locking through a rotatable male element; the end of the body of the insert that is suitable to be inserted in the apparatus port being provided with a retention element which is suitable to lock in its seat the rotatable male element when the insert is inserted, with its second end, in the rotatable male element, the rotatable male element being externally threaded for engagement with the port of the apparatus.

Abstract: An insert with connecting outlet for flexible hoses, particularly for hydraulic and industrial applications, comprising a body which is suitable to be inserted, with a first end, in a flexible hose to be connected and, with a second end, in a port of an apparatus, by locking through a rotatable male element; the end of the body of the insert that is suitable to be inserted in the apparatus port being provided with a retention element which is suitable to lock in its seat the rotatable male element when the insert is inserted, with its second end, in the rotatable male element, the rotatable male element being externally threaded for engagement with the port of the apparatus.

Abstract: A flexible tube (10), in particular for use in oleodynamic circuits, comprises a substrate shaped in the form of a tubular core (12) around which at least one reinforcing layer (14) is arranged. The substrate (12) comprises a radially internal layer of elastomeric material extruded longitudinally (16) and a radially external layer (20) obtained as a result of winding a strip of rubber-coated fabric spirally around the internal layer (16).