A process is described for working up liquid reaction mixtures such as are formed during dimethyl carbonate preparation by oxidative carbonylation of methanol in the presence of a copper-containing catalyst, which process permits a simple separation of the water of reaction from the dimethyl carbonate. In this process, in a first distillation column, the water of reaction is taken from the bottom ...

A computer-controlled injector (40) of the type having a motor which advances and retracts a plunger (12) located within a syringe housing (10) toward and away from a nozzle located in the front of the syringe to inject fluid into or out of an animal subject. Manual motion is induced by operating a manual motion control (44-48); the operator can manipulate the control to indicate the desired direc...

The shelf life of polymeric containers may be economically extended by coating with a barrier material having less than half the permeability of the substrate polymer, the coating being applied to 30 to 75 percent of the container's area, with the proviso that the uncoated area has an average permeability of no more than 15 cc-mm per square meter per day per atmosphere.

Prepn. comprises reacting a polyisocyanate and a polyol in the presence of a blowing agent, cell stabiliser and a catalyst compsn., with a quat., ammonium carboxylate inner salt of formula R2-R1-N(+)-R3-R'4-CO2(-) (I), where R1, R2 and R3 are 1-12C alkyl, 5-8C cycloalkyl, 6-10C aryl or an alkyl, cycloalkyl or aryl contg. a heteroatom, alternately R1 and R2 or R1, R2 and R3 form a ring system with ...

When used for connecting a fluid pipe, the pipe joint for fluid device of the present invention can provide a strong force for preventing the fluid pipe from coming out from the pipe joint and can assure excellent sealing properties regardless of variations of the fluid temperature. The present pipe joint is arranged such that no fluid stay portion is formed. A cylindrical joint body (2) is provid...

Fast image acquisition and image process control are used to advantage to measure dynamic and transient phenomena. This technique distinguishes fluid from bubbles by taking an image of a container containing fluid and modifying the gray levels of the image. Unmodified image processing can be performed without the disadvantage of large time consumption. The technique is used for detecting fluid lev...

The appts. (30) comprises essentially an anvil (32) and an opposed strap engaging member (80), with serrated faces (34, 112) through which the strap (U,L) passes. Anvil (32) has positioner that allows it to squeeze strap (U,L) against member (80) and plunger (92) at a first position, against plunger (92) only at a second position, and to disengage wholly at a third position. Strap engaging member ...

The present invention provides monoclonal antibodies that are specifically immunoreactive with an HIV-1 gp120 protein or its precursor gp160 protein comprising the amino acid sequence set out in SEQ ID NO: 1, G-P-G-R, and characterized by their capacity to neutralize, in vitro, the infection of H9 cells by live HIV-1 strains MN and IIIB as determined by reverse transcriptase, p24, MT-2 and syncyti...

The invention concerns a shoe, in particular a shoe for sport, leisure or rehabilitation purposes, with a centrally positioned clasp mounted on a dimensionally stable instep covering which can be moved towards or away from the instep. The clasp is designed so that it can be used with shoes having uppers made of material which is flexible with respect to tensional forces, i.e. with shoes which do n...

The plasma display panel has front and rear plates(1a, 2a) separated to form a space filled with gas. A number of strip formed display electrodes (30a) are formed on one plate and scanning electrodes (10a) and common electrodes (30a) alternate on the lower plate. This has a dielectric layer (13a) under the electrodes and a further dielectric layer (14a) above. Connections (11a) are formed at the e...

A cardiac discrimination method in which feature values of a heart related signal (e.g., cardiac biopotentials) determined to be non-baseline are compared with feature values of a heart related signal determined to be normal baseline. The feature values are extracted on an event-basis (a periodically), for obtaining feature values of a complex. For each complex, the feature values form a sequence ...

A vehicle steering lock wherein the steering shaft (13) is locked by a bolt (53) moving inside a seat (15) on a metal block (11). The bolt (53) is sprung inside a seat (16) on the shaft (13) and reloaded each time by a cam (33) operated by a key via a lock (21). In the event of the hollow body (8) of the lock (21) being forced, the bolt (53) is locked by a spring element (56), which is normally ma...

Refrigerant is recovered using a single pump unit, regardless of the refrigerant's phase. This is achieved by sensing the phase of the refrigerant and changing the pump's operation accordingly. The refrigerant phase can be sensed by a temperature-responsive element, such as a thermistor, or by other phase-sensing technology. In a preferred embodiment, the pump unit is a vane pump whose rotational ...

Apparatus comprising two pluralities 1 of points or styluses with multiple-pointed heads made from highly electrically conductive material, connected in series and supplied by an insulated direct current conducting wire 2, and installed on the ground in a vertical position on corresponding insulating supports 3, for dissipating fog, particularly along roads, the two pluralities being positioned fa...

In a refrigeration plant operating by means of the evaporation and subsequent recompression of a fluid carried out by means of a compressor (4), the compressor itself is of the liquid jet type. An energy saving is made and there are no particles of lubricant in contact with the fluid used in the refrigerating cycle.

Ring hook for lifting concrete articles of the type comprising a hook ring 1, inserted into a shackle 3, where said ring 1 has an outer thickening portion of the lower arc 11, perforated on the inside, where can move a curved latch 2, and in which said thickening 11 has a vertical notch in its lower middle portion 12, exposing when inserted the hooking portion 21 of said curved latch 2, so that wh...

A floor of hybrid wooden-concrete structure with completely prefabricated panels, is presented, consisting of: 1. rafters of solid or laminated wood of any given kind, having variable width, height, and centre distances according to the static requirements. Said rafters constitute the lower ribbing of the prefabricated panel. 2. reinforced concrete slab, cast in the factory, with variable or cons...

A method and device for scissor cutting strip material, whereby a continuous strip (10) is fed by a conveyor (9) to a cutting station (11) where it is cut into bands (3) by a cutting unit (12) presenting a number of inner blades (30) with a cutting edge (37) parallel to the surface of the strip (10), and corresponding outer blades (27) with a cutting edge (28) sloping in relation to the cutting ed...

Seal labels (19) are affixed to containers (3) by means of equipment comprising a system of conveyors (14, 16) serving to direct a succession of the containers (3) along a predetermined path (13'), and a feed device (23) by which gummed labels (19) are supplied to a fixing station (25) occupying a position alongside one part of the selfsame path (13'). The feed device (23) affords a recess (26) lo...

An abrasive belt surfacing machine 5 for wood panels 1 provides, between each shoe 6 and each respective pneumatic means 7, spherical connection elements 10 arranged inside the shoe 6 and acting on same so as to allow said shoe, in one of its operating positions, an angular variation of its position relative to a transport mat 4, as a function of the profile P of the panel 1 at the entrance; first...