Process and apparatus for manufacturing a pneumatic tire comprising a carcass (1) already shaped in the form of a cylindrical tube having carcass piles faithfully deformed around the base and the sides of the bead cores (2). The drum for torically shaping the carcass comprises means for receiving by telescoping the carcass tube (1) and opposite sectors (10, 13) for clamping between them the portio...

A support appliance is provided which is adapted to be supported on a bed frame and comprises a plurality of elongated inflatable air sacs (1). The air sacs (1) are mounted in groups, and extend transversely of the appliance so as to provide a surface for supporting a person thereon. The appliance has a series of connected box-shaped housings (A to E), each housing being associated with a group of...

A method of and apparatus for binding fiber bundles which reduces an abrupt cross-sectional course at each end of the fiber bundle resulting from the loose ends of the bundles having been removed. The loose ends are, during the binding operation, severed in a fraying manner by abrasive edges and the frayed bound ends are worked into the resulting binding.

The invention comprises a shaped filter and a filter correction circuitry for computerized tomographic scanners. The shaped filter is a generally U-shaped block of filter material which is adapted to be mounted between the source of radiation and the scan circle. The U-shaped block has a parabolic recess. The filter material may be beryllium, aluminum, sulphur, calcium, titanium, erbium, copper, a...

A method and apparatus for serially removing the forwardmost plate from a stack of plates comprises rotating a cylindrical carrier having a chordal segment defined on its periphery with the stack of plates oriented so that the forwardmost plate is tangentially adjacent to the periphery of the carrier. A vacuum source draws air into an air inlet located on the chordal segment thereby creating a low...

The bobbin holder is comprised of a horizontal base (1) provided with a vertical pin (2) and two cones (3, 4) having axial drillings. The two coins (3, 4) as well as the yarn bobbin arranged between them, are set rotatingly about the pin (2). The ends (3a, 4a) of both cones (3, 4) are centered one with respect to the other and bite in the hole (5a) of the bobbin (5). When unwinding the yarn (6) fr...

An endotracheal tube assembly is provided which includes an endotracheal tube, and an insufflation catheter connectable to a source of high frequency gas and disposed in the tube. The tube has spacers adjacent the distal end to space the distal end of the catheter from the inner sidewalls of the tube. The catheter may be provided with a ventilation lumen, a suction lumen, and connection means for ...

A method and apparatus for use at the stage of a radial tire building process at which a tread and breaker, and sidewall rubbers, are added to the expanded carcass. A tread assembly is built, comprising tread rubber breaker and sidewall rubbers and is then located around the carcass which is then expanded into the tread assembly. A tread assembly former has a central portion expansible to bring si...

The invention concerns a method of curing a green rubber tire (40) having a closed interior (42) with two spaced ports (46, 48) extending from the interior (42). The method includes the step of forming the tire (40) on a porous, disintegratable core (44) and then positioning the tire within a pressure vessel (50). The pressure vessel (50) and the interior (42) and porous core (44) are then filled ...

A fail-safe supervisory circuit for a microprocessor-controlled fuel burner has a diode pump circuit (C4, C5, D7, D8) triggered by a resettable monostable (R7, T2, R8, C3) responsive to an encoded signal from the microprocessor, to act as a watch-dog timer. A triggered bistable (D1, T1, R2, IC8) provides a RESET signal on power-on or manually. A direct connection from this bistable to the monostab...

Homogeneous solutions of styrene, maleic anhydride and styrene-maleic anhydride copolymer having a low overall styrene content are prepared. These reactive solutions crosslink with polyfunctional reactants such as diepoxides to form thermoset resins.

Novel amphoteric emulsifiers are disclosed for solventless and solvent containing mixing grade, oil-in-water anionic and cationic bituminous emulsions, which emulsifiers are the modified reaction products of polyamines with certain polycarboxylic acids and sulfonated carboxylic acids. Modifications are carried out by reacting the nitrogen-containing intermediate with formaldehyde and sodium sulfit...

A V-belt type stepless transmission, basically including an input pulley and an output pulley mounted on parallel input and output shafts, respectively, each of the input and output pulleys having a stationary flange and a movable flange axially displaceable relative to the stationary flange and rotatable integrally therewith; an endless V-belt lapped around the input and output pulleys to transmi...

A hydrogel polymer-based lubricating layer is provided on a flexible rubber article (such as a surgeon's glove) or other polymer article by applying a solution having dissolved therein a hydrophilic hydrogel-forming polymer (such as a copolymer of 2-hydroxyethyl methacrylate) and a salt of a trivalent cation (such as aluminium). The polymer is cured after application to the substrate preferably wi...

A hydrogel polymer-based lubricating layer is provided on a flexible rubber article (such as a surgeon's glove) or other polymer article by applying a solution having dissolved therein a hydrophilic hydrogel-forming polymer (such as a copolymer of 2-hydroxyethyl methacrylate) and a salt of a trivalent cation (such as aluminium). The polymer is cured after application to the substrate preferably wi...

Fine particulate expandable styrene polymers suitable for the production of molded bodies with improved minimum mold dwell times, containing 0.01 to 2.0% by weight, referred to the polystyrene or the total of the polymerized monomers, of polyoctenamer having I values from about 10 to 400 ml/g and trans octylene contents from about 20 to 90%.

An electromagnetic track brake for a railway vehicle comprises an elongate brake energizing coil, a rigid frame (43), and a plurality of U-shaped braking shoes (23, 24) mounted in a row in the frame. In order to improve the transmission of braking reaction forces from the shoes to the vehicle each braking shoe (23, 24) is individually movable downwards relative to the frame (43) against sprin...

A high precision controller for an alternating-current multi-phase electrical motor that is subject to a large inertial load. The controller was developed for and is particularly suitable for controlling, in a neutron chopper system, a heavy spinning rotor that must be rotated in phase-locked synchronism with a reference pulse train that is representative of an ac power supply signal having a mean...