Abstract: The present invention relates to a heat-pump clothes drying machine, in particular a heat-pump arrangement for removing moisture from and heating up the drying air; said heat-pump arrangement comprises a plurality of separate closed-loop circuits, each one of said separate closed-loop circuits comprising at least one compressor (20, 30; 220, 230; 320, 330), at least one evaporator (22, 32; 222, 232; 322, 332), at least one expansion valve (24, 34; 224, 234; 334, 324), and at least one condenser (26, 36; 226, 236; 336, 326).

Abstract: The present invention relates to a heat-pump clothes drying machine, in particular a heat-pump arrangement for removing moisture from and heating up the drying air; said heat-pump arrangement comprises a plurality of separate closed-loop circuits, each one of said separate closed-loop circuits comprising at least one compressor (20, 30; 220, 230; 320, 330), at least one evaporator (22, 32; 222, 232; 322, 332), at least one expansion valve (24, 34; 224, 234; 334, 324), and at least one condenser (26, 36; 226, 236; 336, 326).

Abstract: A drill for drilling wide diameter and high depth holes in the soil including a base machine (1) having a rotary (2) that is equipped with a clamp (9) and, by means of translation cylinders (8), rotates and axially moves a series of drill stem (7) having a tool (6) at the free end thereof, includes: an hydraulic joint (3) linked to the rotary (2); at least a winch (4) linked to the hydraulic joint (3) and provided with at least a wire rope (18); a carrier canister (5) slidely connected with the stem (7) between the rotary (2) and the tool (6) by means of at least the wire rope (18); at least a winch (4), a wire rope (18), a carrier canister (5) are rotated together with the stem (7) of the rotary (2) in correspondence of an operating condition of the drill.