Abstract: A device and a method for obtaining information about a wheel (100), the device comprising a penetrating body (72) for at least partially inserting between a tyre (101) and a rim (102) of a wheel (100), and means (73) for acquiring the images, the means (73) being installed on a portion of the penetrating body (72) which is designed to be positioned in an internal space between the tyre (101) and the rim (102).

Abstract: The invention relates to a mounting device for mounting or demounting a tyre of a vehicle onto or from a rim, with at least a rotating body which rotates about an axis.

Abstract: The present invention relates to an improved device for tire disassembling machines in general, designed to simplify tire assembling on rim without excessive stretching.

Abstract: An elongated drive string assembly comprising a plurality of hollow sucker rods and connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each hollow sucker rod has at least a first end comprising an internal female threaded surface engaging an external male threaded surface on a connecting element, such as a nipple. In order to further optimize the stress distribution between the elements, frustro-conical, non-symmetrical threads with a differential diametral taper are used. Preferably two torque shoulders with a maximized mean diameter and cross-sectional area are used to resist storing reactive torque in the drive string. The nipple free end defines a second torque shoulder that adds to the torque transmission during make-up while also defining a small seal at that free end to decrease corrosion erosion problems.

Abstract: A tyre mounting/dismounting machine (1), comprising a base (2), rotating means (3) for supporting and blocking a wheel (100) and a column (4) associated to the base (2), a first arm (7) and a second arm (8) being slidably mounted on the column (4), an upper first debeader tool (13) and a lower second debeader tool (9) being mounted respective at free ends of each arm (7, 8). Mounted at the free end of the first arm (7) is a head (10) which is rotatable with respect to an axis (Y), from which head a mounting tool (11), a dismounting tool (12) and the first debeader tool (13) project, the tools (11, 12, 13) being mounted in reciprocal positions such that the tools (11, 12, 13) do not interfere with one another and such that by rotating the head (10) with respect to the first arm (7) a same work position can be reached for each of the tools (11, 12, 13).

Abstract: A mechanical power-transmission system with chain including a mechanical tightener acting on a branch of the chain and having in turn a base, a tightening shoe in dragging contact with the chain and a sliding wedge under the thrust of a first spring in an irreversible manner between the base and the shoe to cause progressive withdrawal of the base and the shoe in the tightening direction of the chain so that between the wedge and the shoe there is an elastic thrust member for thrusting the shoe in the tightening direction.

Abstract: Chain tightener comprising a first supporting surface (11) on one branch (12) of the chain and a second supporting surface (13) on the other branch (14) of the chain with each supporting surface (11,13) being connected to a respective drive piston (19,119,20,120) into which is fed fluid for thrust in a tightening direction of the respective chain branch with the hydraulic circuits of the two pistons interconnected so that when one piston (19,119 or 20,120) is thrust in the direction opposite tightening from the tight branch of the chain it sends its fluid into the other piston (20,120 or 19,119) to thrust it to tighten the corresponding slack chain branch.

Abstract: An assembly for storing elongated members, the assembly comprising an elongated support element and a pair of segments. The segments are disposed on opposite sides of the elongated support element from each other, and each of the segments defines a cradle for supporting an elongated member. The pair of segments is joined together at a seam formed by locally heating and melting contacting edges of the segments to fuse them together. Moreover, the pair of segments is fixed to the elongated support element against movement in a longitudinal direction of the elongated support element. The elongated support element has a textured region of raised protrusions, indentations, or holes, over at least a portion of the surface thereof. Each cradle comprises a center portion located longitudinally between a pair of inclined portions.

Abstract: An elongated drive string assembly includes a plurality of hollow sucker rods and connecting elements between a drive head located at the surface of an oil well and a rotary pump located deep down in an oil well, with a series of holes at each end to substantially increase the flow of extracted fluid. Each hollow sucker rod has a first end with a torque shoulder, which engages a torque shoulder formed on a connecting element. The threads are frusto-conical, non-symmetrical threads with a differential diametral taper. The torque shoulders have a maximized mean diameter and cross-sectional area to resist storing reactive torque in the drive string.

Abstract: A metalworking apparatus includes a threading insert with a channel-less chip breaker and a holder for holding the threading insert. The threading insert includes (i) one cooling channel disposed on the top side of the threading insert for each crest and each valley, which terminates near the cutting region, and (ii) a ceramic coating on at least the cutting region of crests and valleys, with each cooling channel being uncoated.

Abstract: A chain with links made of plates connected with hollow pins containing a reserve of lubricant connected with the chain parts to be lubricated. The lubricant reserve is contained in replaceable cartridges inserted removably in the pins through an appropriate end passage. The cartridge can be made with an enlarged section to constitute a plug of the pin in which it is received.

Abstract: A chain has links made up of pairs of outer and inner plates connected respectively by pins and bushes fitted on the pins and projecting through the inner plates. Between the bush and its pin there is a lubricated interface and on each end of the bush is mounted and compressed between an inner and an outer plate an annular seal. The seal when not compressed between the plates is generically shaped with a lip projecting towards the axis of the seal. With the chain assembled the lip tends to wedge between the bush and the outer plate to reduce the wear on the seal.

Abstract: An assembly for storing elongated members, the assembly comprising an elongated support element and a pair of segments. The segments are disposed on opposite sides of the elongated support element from each other, and each of the segments defines a cradle for supporting an elongated member. The pair of segments is joined together at a seam formed by locally heating and melting contacting edges of the segments to fuse them together. Moreover, the pair of segments is fixed to the elongated support element against movement in a longitudinal direction of the elongated support element. The elongated support element has a textured region of raised protrusions, indentations, or holes, over at least a portion of the surface thereof. Each cradle comprises a center portion located longitudinally between a pair of inclined portions.

Abstract: An elongated drive string assembly includes a plurality of hollow sucker rods and connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down in an oil well. Each hollow sucker rod has at least a first end including an internal female threaded surface engaging an external male threaded surface on a connecting element, such as a nipple. The first end also includes a torque shoulder, which engages a torque shoulder formed on the connecting element. The threads are frusto-conical, non-symmetrical threads with a differential diametral taper. The torque shoulders have a maximized mean diameter and cross-sectional area to resist storing reactive torque in the drive string. The nipple has a wall cross-section that increases towards the torque shoulders from each free end, to increase fatigue resistance.

Abstract: The present invention discloses a sucker rod with high resistance to corrosion, to be used preferably in oil wells. Said sucker rod comprises a core of carbon steel, whether alloyed or not, whose surface is coated by a copper base alloy. Said alloy comprises a 50 to 99.9% copper rate. A process for manufacturing said sucker rod is included.

Abstract: The present invention discloses a sucker rod with high resistance to corrosion, to be used preferably in oil wells. Said sucker rod comprises a core of carbon steel, whether alloyed or not, whose surface is coated by a copper base alloy. Said alloy comprises a 50 to 99.9% copper rate. A process for manufacturing said sucker rod is included.

Abstract: Low-alloy carbon steel for the manufacture of seamless pipes having improved resistance to corrosion, particularly the “sweet corrosion” that occurs in the media rich in CO2, for using in exploration and production of oil and/or natural gas. The steel contains: 1.5-4.0% by weight of Cr, 0.06-0.10% by weight of C, 0.3-0.8% by weight of Mn, not more than 0.005% by weight of S, not more than 0.015% by weight of P, 0.20-0.35% by weight of Si, 0.25-0.35% by weight of Mo, 0.06-0.9% by weight of V, approximately 0.22% by weight of Cu, approximately 0.001% by weight of Nb, approximately 0.028% by weight of Ti, not more than a total value of O of 25 ppm, with the balance being Fe and unavoidable impurities.

Abstract: An aqueous-based inoculant composition in liquid form for leguminous seeds that produces an immediate nodule formation and an increased nitrogen fixation, containing microorganisms of the Rhizobium or Bradyrhizobium genus, a molybdenum compound selected from alkali metal molybdates and a compound that neutralizes the seed exudates, which are toxic for the bacteria, selected from polymers of compounds presenting an amide, amine or imine moiety. The inoculant composition remains stable at room temperature, keeping the number of viable bacteria over long periods of time and ready to be used.