Novel X-ray contrast agents, i.e., N,N'-bis(2,3-dihydroxypropyl)-5-N-(2-hydroxyethyl)glycolamido-2,4,6-tr iiodoisophthalamide.

A Tire Building Drum (10) having radially expandable shoulder forming means (42) and radially expandable bead seating means. (52) The drum includes an independently operable pair of annular pistons (79, 100) associated respectively with the shoulder forming means and the bead seating means such that the shoulder forming means can be operated independently in time, in radial extent and in force app...

A composite ski binding which allows downhill skis to be converted to touring or langlaufing use by use of a clip-in base (13, 14) provided with an upper footplate (16) rotatable about said base (13, 14) in a substantially transverse axis (19) in relation to said base (13, 14). The axis of rotation (19) is substantially intermediate the ends (17, 18) of the footplate. Preferably the base (13, 14) ...

A method of manufacturing a tire bead ring of the package type by winding metal wires on a form of revolution, the radially inner face of the tire bead ring having a frusto-conical shape of half angle alpha at the apex and of radius R with respect to the axis of rotation of the tire bead ring, in which a permanent circular deformation is effected on the wires prior to their winding on the form of...

Coupling of a microprocessor ( mu P1) to a second microprocessor ( mu P2) without any interface for direct memory access to an address data bus (Ad/Da bus) which connects the two microprocessors to one another; a random access memory (RAM) (which has defined subregions for storing data intended for interchange) is connected to the address data bus (Ad/Da bus). The second microprocessor ( mu P2) is...

PURPOSE:To raise the mechanical characteristics of a styrene resin-based film by molding a styrene resin into which rubber particles of an occlusion structure, having an average diameter of 0.3-2mu, and a butadienedominated particles of an average diameter of 0.4mu or less are dispersed into a film. CONSTITUTION:Particles of an average diameter of 0.3-2mu, having an occlusion structure in which st...

A printing material composed of an open-cell sponge rubber capable of including therein a colored ink, which does not necessitate a stamp pad for the stamping operation, is disclosed. This printing material is prepared by adding appropriate amounts of soluble starch and a fine powder of an easily water-soluble salt which does not decompose or gasify at a curing temperature to a mixture of a starti...

A rubber stopper for sealing comprises a substrate of a rubber stopper which is partially or wholly coated with a fluorine-containing elastomer comprising a graft copolymer having rubber-like elasticity and having chemical linkages of fluorine-containing polymeric segments and organopolysiloxane segments at reactive sites of said segments.

The invention provides an installation for testing a well by pumping by means of a submerged pump and a process for use thereof. The assembly 6 formed of an hydraulic pump and motor is carried by one end of a reinforced flexible tube 1 wound through a pulley 7 on a drum 3 actuated by the surface motor 8. . In the sheath of tube 1 are housed electric conductors 2 for supplying the motor of assembly...

A composition suitable for making crosslinked and optionally foamed shaped structures comprises polypropylene with 2 to 20% of its weight of polybuta-1,2-diene having a molecular weight of 500 to 10,000 and with 10 to 50% of its weight of high- density or low-density polyethylene and optionally also a cross-linking agent and/or a foaming agent. After shaping the composition and subjecting it to a ...

A continuous process for making rigid PVC foam objects by extruding a preform from an initial PVC mixture, optionally cutting the preform into blanks, and expanding the preform or the blanks in water heated to a temperature above 70 DEG C. The initial mixture contains polyvinyl chloride, at least a first blowing agent capable of generating a gas, for example an isocyanate or a polyisocyanate, and...

A method for making metallic glass powder is disclosed, which involves atomizing a jet (54) of molten glass forming metal alloy by impinging with a moving body to form a stream of discrete molten droplets (64) of the metal alloy, followed by impinging that stream (64) on a travelling chill surface (66) to effect rapid solidification of the molten droplets (64). The powder can be fabricated into so...

An assemblage of digital devices, each having serial asynchronous input and output channels, can be connected via networks of speed independent arbiter and selector switches. Certain classes of networks have desirable properties: distributed control of routing, conflict resolution, automatic identification of source network address with respect to destination, and exploitation of permissable concu...

13-cis-Polyenecarboxylic acids (I) so-called retinoid acids, are obtained by subjecting a suitable alpha -pyrone (II) to hydrogenation, preferably using sodium borohydride. The novel alpha -pyrones of the general formula (II) are also claimed.

An electrical coupling device, for example a 3-pin electric plug, for effecting electrical connection between at least one electrically-conducting member of the coupling device, for example contact pins (2, 3 and 4), and the electrically-conducting material of at least one insulated electrical conductor, for example the insulated conductors (7, 8, 9) of an insulated cable (6). The coupling device ...