Abstract: The machine comprises a working station (P) and a fixed bed (10) disposed to the rear side of the working station (P). For rotating a wheel (20) there is provided a unit which is carried by a support bracket (30) connected to the fixed bed (10) in such a manner as to be able to swivel about a horizontal axis (A) passing through the working station (P), and comprises, for rigidly locking the wheel rim, a motorized mandrel (32) disposed with its axis (B) perpendicular to and cutting or nearly cutting the swivel axis (A), so that the tire of the wheel (20) carried by the mandrel (32) is traversed, in a virtually central position, by the swivel axis (A) of the support bracket (30). The machine also comprises means (12) for swivelling the support bracket (30) between two operative positions, in the first of which the axis of rotation (B) of the wheel is disposed in a horizontal position, and in the second of which the axis of rotation (B) of the wheel is disposed in a vertical position.

Abstract: An elongated drive string assembly comprising a plurality of hollow sucker rods and a 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. The torque shoulders have a maximized mean diameter and cross-sectional area to resist storing reactive torque in the drive string. The nipple preferably has a wall cross-section that increases towards the torque shoulders from each free end, to increase fatigue resistance.

Abstract: A threaded union highly resistant to overtorque and compression that includes a threaded member in its internal surface—called female—that joins a threaded member in its external surface—called male—. The union between the male extreme and the female is produced through the threaded surface. When the members are fully assembled, one axially oriented surface in the free extreme of one of the members—called nose—presses against a corresponding surface in the other member—called shoulder of torque. This shoulder is comprised of two surfaces, a first one coincidentally oriented to the corresponding nose of the first member, and a second one truncated and conical in shape with an angle B and with the axis of the pipe located between the first surface and the internal cylindrical surface of the female member.

Abstract: A tool for mounting and removing tires onto and from respective wheel rims comprises a profiled body mounted on a cylindrical shank provided at the end of a tool holder bar associated with a tire removal machine. The body has two active portions: the blade and the head. The blade and the head extend from two parts comprising coaxial hubs, both of which are mounted on the cylindrical shank of the tool holder bar and removably coupled together such that their mutual orientations can be adjusted. At least one of the hubs is provided with means for torsionally locking the hub to the shank.

Abstract: A water distribution valve, ideally suited for distributing water from a recirculating pump of a swimming pool to selective outlet lines, is designed with a main housing in the form of an outer cylindrical section. This main housing has outlet ports located through the peripheral surface thereof at equal angular spaced intervals. These outlet openings are located in a plane which is perpendicular to the central axis of the main housing. A fluid distribution member, in the form of a T-shaped body, is rotatably mounted inside the main housing member. The base or stem of the T is connected with a water inlet; and one arm of the T has a fluid delivery opening in it for delivering water from the inlet through the opening.

Abstract: Tire removal machine with manually or automatically positionable turret comprising a casing supporting a rotatable plate provided with self-centering jaws; a vertical column rising to the side of the plate; a shaft slidable horizontally relative to the column and lockable in position; a sleeve rigid with said shaft and within which the tool holder turret slides vertically, said turret being associated with a spring which maintains the turret spaced from said plate; pneumatic means for locking said shaft and said turret in position; and turret operating and locking means controlled independently by two three-way slide valves which can be switched between an active position in which the compressed air feed line communicates with the delivery lines of said turret operating and locking means, and an inactive position in which said delivery lines are connected to a discharge line respectively, said two slide valves being both associated with a single trigger the operation of which switches them into their inactive

Abstract: For locally supporting an overhead electrical power line, a suspension includes a suspension clamp, the bottom part of which is open laterally and forms a cradle which is associated with a pivoting clamping assembly. The suspension clamp includes, in addition to the clamping system, a pivoting closure clamp which closes the cross-section of the bottom part when required. Applications include installing and supporting low-voltage overhead electrical power lines formed of insulated cables.

Abstract: Disclosed is a freezable coolant composition used for cold-preservation of, e.g., foods by utilizing the latent heat of fusion at the freezing point which is substantially higher than 0.degree. C. and in the range, for example, from 5.degree. C. to 26.degree. C. The composition is a ternary mixture consisting of: (A) from 98.0 to 8.0% by weight of 1,6-hexanediol; (B) from 0.5 to 3.0% by weight of sodium benzoate; and (C) from 1.5 to 89.0% by weight of water, each percentage being based on the total amount of the components (A), (B) and (C).

Abstract: A prosthesis for treating ailments of the scaphoid consists of an implant shaped and sized to serve as a partial replacement of the scaphoid. The prosthesis consists of an element made of a material whose Young's modulus is approximately in the range 10-35 GPa, such as pyrolytic carbon, and having an external surface with a first curved portion having a small radius of curvature corresponding to the conjugated profile of the scaphoid between the head of the capitate and the radius, and a second curved portion having a large radius of curvature corresponding to the profile of the scaphoid facing the radius. Preferably, the partial scaphoid implant is elliptical in each of three mutually perpendicular planes. A method for treating ailments of the scaphoid consists in the surgical removal of a proximal portion of the scaphoid, while leaving the distal fragment thereof in place, and replacing the removed fragment by a prosthesis as described above.

Abstract: A tool for automatically forming on thermoplastic pipes, bellings of considerable longitudinal extension for sealingly joining pipes subject to high stresses. The tool includes a shaped spindle on which there is axially inserted a heated end of the thermoplastic pipe, and a first and second mechanical body that receives pressurized fluids which act on the pipe. The heated pipe end is plastically deformed in the region of the shaped portion of the spindle to form an annular seat and bell portion of the belling.

Abstract: A pressurized-fluid workhead for permanent belling of end portions of plastic pipes. A die has a cavity for receiving a thermally plasticized end portion of a pipe. A forming buffer is insertable into the end portion of the pipe and arranged centrally of the die. A flange is mounted coaxially and slidably with respect to the buffer and die and has a striking surface which can be associated to an edge of the end portion of the pipe. Sealing elements are located on the die and the buffer. These interact with an external surface and an internal surface of the end portion of the pipe. The die, the buffer and the flange together peripherally define a forming chamber for the end portion of the pipe. The forming chamber is subdivided by the pipe into first and second pressure chambers for a fluid. The first pressure chamber is arranged between the lateral surface of the buffer and the internal surface of the pipe.

Abstract: A device for coating steel sheet surfaces by hot immersion in continuous coating lines, is provided, including several driving rollers disposed against the surface of the sheet to be coated, complemented by tensioning rollers and an inert gas stream, in this case nitrogen, acting on the cutting edges of the scrapers and against the surface of the coating driving rollers.

Abstract: A soft gelatin capsule with a filling including lysine clonixinate as an active ingredient and in a hydrophilic matrix and with a shell comprising gelatin, a plasticizer and sorbitol, wherein the plasticizer in many instances will be glycerol but may comprise the sorbitol alone. The presence of sorbitol in the gelatin capsule of a lysine clonixinate dosage form imparts unexpectedly good drug release and stability thereto.

Abstract: The invention relates to a machine for bell-forming ends of thermally plasticized pipes, including a vise for blocking pipes having jaws which are mobile along a vertical plane, wherein the introduction and unloading of the pipes occurs tangentially to the plane. The machine is provided with a forming device having a pressurized-fluid forming chamber, internally containing a forming chuck. The forming chamber exhibits an elastic wall which is strengthened during the pressurization operation by rigid striking elements borne directly by the jaws of the vice, and is fed by a single pipe for feeding fluid for pressurization of the forming chamber and for cooling the chuck.

Abstract: Substituted N-aminoalkylmethane sulfanilide of formula (I), their solutions and pharmaceutically acceptable addition salts, their pharmaceutical compositions and their therapeutic use. In formula (I) Y represents hydrogen, cyano, nitro, amino, acetamide or halogen; n is an integer between 2 and 4, R.sup.1 and R.sup.2 equal or different are alkyl-(C1-C4) or they are connected together and with the N-atom thereby forming a 1-pyrrolidinyl, 1-piperidinyl, 1-piperazinyl, 4-methyl-1-piperazinyl, 4-ethylpiperazinyl, 4-propylpiperazinyl, 1-homopiperidinyl or 4-morpholine residue. The products of formula (I) are used as antispasmodic agents.

Abstract: A process cleans inductor channels of furnaces melting non-ferrous metal alloys wherein the coating alloy has a minimum of zinc content of 50% by weight which is subject to softening, dilution and floating of DROSS heavy slag which obstructs the inductor channels. The slag is removed by mechanical action of hammer-shock powered lances with slicing fins presented at a contact end of the lances. Cleaning of the slag is aided by a nitrogen gas stream acting within inductor channels.

Abstract: A mechanical device is provided for scraping rollers immersed into an alloy bath through gas feeding, which extends the life of the rollers from several days to several weeks. The device has pairs of scrapers with hard steel cutting edges acting against the roller surfaces along with the fluid action of an inert gas injected through the inner portion of the mechanical scraper.